A flame furnace with anti-sinking interlocking masonry at the discharge port

Abstract

The utility model discloses a flame furnace with an anti-sinking interlocking masonry with a discharge port, which comprises a furnace body, a feeding port is arranged on the top of the furnace body, a discharge port is arranged on one side of the bottom of the furnace body, and an anti-sinking interlocking masonry is arranged on the furnace body above the discharge port, the anti-sinking interlocking masonry is composed of a supporting brick group, a leveling self-locking brick group and an anti-sinking interlocking brick group; the leveling self-locking brick group is stacked on the anti-sinking interlocking brick group, and the leveling self-locking brick group and the anti-sinking interlocking brick group are built together between the inclined surfaces on the left and right sides; the flame furnace of the utility model has been changed in design and masonry structure, so that the furnace life of the flame furnace is greatly extended, the amount of refractory materials used for maintenance is greatly reduced, and the safety of personnel is guaranteed when the flame furnace is regularly stopped for maintenance, coking cleaning and other operations.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary copper refining, in particular to a flame furnace with an anti-sinking interlocking masonry body of a discharge port. Background Art

[0002] The patent "A flame furnace for melting crude copper" is applied to produce recycled copper. The flame furnace is an upright cylindrical furnace body with a furnace wall height of 8.4m, which is formed by refractory brick rings along the height direction. Multiple burners are arranged in the circumferential direction of the furnace wall at the lower part of the flame furnace, and a discharge port is opened at the furnace wall adjacent to the lowest point of the furnace bottom. Cold copper raw materials are put into the furnace from the top of the furnace, melted into copper liquid by the burner flame, and the copper liquid flows along the bottom of the furnace, flows out from the discharge port and is transported to the next process.

[0003] A bridge brick is set above the discharge opening to support the brick ring above it (see Figure 1 ). The two ends of the river brick are placed on the furnace walls on both sides of the discharge port, and the main part is suspended. The weight of the furnace wall bricks above the discharge port opening acts on the large surface of the river bricks, causing great bending stress on them. The river bricks are magnesia refractory bricks with low bending strength (only 10-15MPa), and the overhead section of the river bricks is easily broken and then falls under bending stress. For the needs of production and maintenance, the flame furnace needs to be equipped with a wider discharge port. The larger the width of the discharge port, the greater the weight of the furnace wall bricks above the discharge port opening, and the greater the bending stress on the river bricks. The river bricks are more likely to be broken and then fall.

[0004] During production, when cold copper raw materials are put into the furnace from the top, there is a high probability that they will directly hit the overhead section of the large surface of the inner bridge brick. Due to the large height difference from the furnace top to the discharge port and the heavy weight of the copper raw materials, the huge impact force during the collision also produces huge bending stress, which far exceeds the bending strength of the bridge brick, often causing the overhead section of the inner bridge brick to be broken and then fall. The wider the discharge port, the more serious the situation.

[0005] If the bricks have fallen, the furnace needs to be stopped immediately for major repairs to rebuild the furnace wall. Otherwise, the brick ring above the discharge opening will sink rapidly due to loss of support, and then the brick ring will disintegrate and damage, leading to large-scale collapse of the furnace wall and a dead furnace accident.

[0006] The flame furnace is shut down regularly for maintenance, cleaning of coke, etc. The discharge port is the passage for personnel to enter the furnace. If the crossing bricks have been broken or knocked off but not fallen, it is difficult to check before the operation, and there is a safety risk of furnace wall collapse during the operation. Utility Model Content

[0007] The purpose of the utility model is to provide a flame furnace with an anti-sinking interlocking masonry of a discharge port in view of the above situation. The flame furnace has undergone changes in design and masonry structure, which greatly extends the furnace life of the flame furnace and greatly reduces the amount of refractory materials used for maintenance. When the flame furnace is regularly shut down for maintenance, coking and other operations, the safety of personnel is guaranteed.

[0008] The specific scheme of the utility model is: a flame furnace with an anti-sinking interlocking masonry with a discharge port, comprising a furnace body, a feeding port is arranged on the top of the furnace body, a discharge port is arranged on one side of the bottom of the furnace body, and an anti-sinking interlocking masonry is arranged on the furnace body above the discharge port, the anti-sinking interlocking masonry is composed of a supporting brick group, a leveling self-locking brick group and an anti-sinking interlocking brick group, wherein the supporting brick group is composed of two upper supporting bricks and two lower supporting bricks, the two upper supporting bricks are respectively stacked on the two lower supporting bricks, and the two lower supporting bricks are respectively arranged on the left and right sides above the discharge port, the inner side surfaces of the upper supporting bricks and the lower supporting bricks are arranged to be aligned inclined surfaces, and the inclined surfaces on the left and right sides form an inverted eight-shaped shape; the leveling self-locking brick group is stacked on the anti-sinking interlocking brick group, and the leveling self-locking brick group and the anti-sinking interlocking brick group are built together between the inclined surfaces on the left and right sides.

[0009] Furthermore, the leveling self-locking brick group described in the utility model is composed of 5 to 30 vertical thick wedge-shaped bricks densely arranged side by side, the upper end surfaces of all vertical thick wedge-shaped bricks are on the same horizontal plane and remain flush with the upper end surfaces of the upper supporting bricks, and the lower end surfaces of the vertical thick wedge-shaped bricks are completely and tightly fitted with the upper end surfaces of the anti-sinking interlocking brick group.

[0010] Furthermore, the anti-sinking interlocking brick group described in the utility model is composed of 5 to 33 wedge-shaped anti-sinking interlocking bricks, and the wedge-shaped anti-sinking interlocking bricks are divided into double male bricks, male and female bricks and female bricks, among which the number of double male bricks is one and is located in the middle of the anti-sinking interlocking brick group, the number of female bricks is two and are respectively located at the outermost sides of the anti-sinking interlocking brick group, and the others are male and female bricks.

[0011] Furthermore, the upper end surface of the anti-sinking interlocking brick group in the utility model is an arcuate surface, and the arcuate surface is tightly fitted with the lower end surface of the leveling self-locking brick group, and the lower end surface of the anti-sinking interlocking brick group is a horizontal flat surface.

[0012] Furthermore, the double male bricks described in the utility model are symmetrically provided with bosses on the upper part of the two side surfaces of the wedge-shaped anti-sinking interlocking bricks; the male and female bricks are provided with a boss on the upper part of one side surface of the wedge-shaped anti-sinking interlocking bricks, and a groove on the upper part of the other side surface; the female brick is provided with a groove on the upper part of one side surface of the wedge-shaped anti-sinking interlocking bricks; when adjacent wedge-shaped anti-sinking interlocking bricks are tightly fitted, the bosses are placed in the corresponding grooves and the maximum gap width between the two is less than 2mm.

[0013] Furthermore, the central angle of the sector formed by all the wedge-shaped anti-sinking interlocking bricks in the utility model is 25 to 80 degrees.

[0014] Furthermore, the furnace body in the utility model is built by a plurality of brick rings; the heights of the upper supporting bricks and the lower supporting bricks are both integer multiples of the height of the brick rings.

[0015] Furthermore, the inclination angles of the inclined surfaces on the upper supporting bricks and the lower supporting bricks in the utility model are equal to the side inclination angles of the anti-sinking interlocking brick group and the leveling self-locking brick group.

[0016] The utility model is an improved flame furnace. Through the combination design of multiple brick types, the structure of the original river bricks is changed, and the weight of the furnace wall bricks or the impact force of the copper raw material is shared by multiple refractory bricks; by changing the force-bearing mode, the end face of the brick body bears the compressive stress instead of the large face bearing the bending stress, and the characteristic of the magnesia refractory brick that the compressive performance is much stronger than the bending strength is fully utilized, and the single refractory brick in the combined masonry is not easy to be broken / broken. The wedge-shaped anti-sinking interlocking bricks are interlocked in pairs, and the lower supporting bricks lock the anti-sinking interlocking brick group from the side; the vertical thick wedge-shaped bricks of the leveling self-locking brick combination are self-locked by friction, and the "upper supporting bricks" lock the leveling self-locking brick group from the side. In particular, the anti-sinking interlocking brick group supports the leveling self-locking brick group from the bottom, so that even if a single refractory brick in the combined masonry breaks / collides, it will not fall, so that the shape of the combined masonry is always intact, and the upper furnace wall brick ring at the discharge port opening is reliably supported, so that the brick ring will not disintegrate and cause the furnace wall to collapse. The life of the flame furnace is greatly extended, and the amount of refractory materials used for maintenance is greatly reduced. When the flame furnace is regularly shut down for maintenance, cleaning of coke and other operations, the safety of personnel is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the existing flame furnace in the main section direction;

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure cut along the AA direction;

[0019] Figure 3 It is a schematic diagram of the structure of the utility model in the main section direction;

[0020] Figure 4 yes Figure 3 Schematic diagram of the cross-section structure in the middle BB direction;

[0021] Figure 5 yes Figure 3 Schematic diagram of the cross-section structure in the CC direction;

[0022] Figure 6 It is a schematic diagram of a leveling self-locking brick assembly in the utility model;

[0023] Figure 7 It is a schematic diagram of the anti-sinking interlocking brick group in the utility model;

[0024] Figure 8 It is a schematic diagram of a vertically thick wedge-shaped brick in the utility model;

[0025] Fig. 9 This is a schematic diagram of the mother brick structure in the utility model;

[0026] Fig.10 It is a schematic diagram of the double public brick structure in the utility model;

[0027] Fig.11 It is a schematic diagram of the male and female brick structure in the utility model;

[0028] Fig.12 It is a schematic diagram of the anti-sinking interlocking masonry in the utility model during masonry.

[0029] In the figure: 1—burner, 2—furnace body, 3—copper raw material, 4—river brick, 5—discharging port, 6—molten copper, 7—brick ring, 8—anti-sinking interlocking masonry, 9—leveling self-locking brick group, 10—upper supporting brick, 11—lower supporting brick, 12—anti-sinking interlocking brick group, 13—vertical thick wedge brick, 14—double male brick, 15—male and female brick, 16—female brick, 17—groove, 18—boss, 19—removed part. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings of the utility model to clearly and completely describe the technical solution of the utility model. It is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the utility model. In the description of the utility model, it should be noted that the terms "upper", "lower", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when used, which is only for the convenience of describing the utility model or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Figure 1 , Figure 2The structure diagram of the conventional flame furnace is shown in the figure. The utility model improves the design of the river-crossing brick part and improves the river-crossing brick part into the anti-sinking interlocking masonry in the utility model.

[0033] See also Figure 3 to Figure 12 The utility model is a flame furnace with an anti-sinking interlocking masonry with a discharge port, comprising a furnace body 2. Further, the furnace body in the utility model is built by a plurality of brick rings 7; a feed port is arranged on the top of the furnace body, a discharge port 5 is arranged on one side of the bottom of the furnace body, and an anti-sinking interlocking masonry 8 is arranged on the furnace body above the discharge port, wherein the anti-sinking interlocking masonry is composed of a supporting brick group, a leveling self-locking brick group 9 and an anti-sinking interlocking brick group 8, wherein the supporting brick group is composed of two upper supporting bricks 10 and The utility model is composed of two lower supporting bricks 11, two upper supporting bricks are respectively stacked on the two lower supporting bricks, and the two lower supporting bricks are respectively placed on the left and right sides above the discharge port, and the inner side surfaces of the upper supporting bricks and the lower supporting bricks are set to be aligned inclined surfaces, and the inclined surfaces on the left and right sides form an inverted eight-shaped shape, and the heights of the upper supporting bricks and the lower supporting bricks are both integer multiples of the height of the brick ring; the leveling self-locking brick group is stacked on the anti-sinking interlocking brick group, and the leveling self-locking brick group and the anti-sinking interlocking brick group are built together between the inclined surfaces on the left and right sides. Further, the leveling self-locking brick group described in the utility model is composed of 5 to 30 vertical thick wedge-shaped bricks 13 densely arranged side by side, the upper end surfaces of all vertical thick wedge-shaped bricks are on the same horizontal plane and are kept flush with the upper end surfaces of the upper supporting bricks, and the lower end surfaces of the vertical thick wedge-shaped bricks are completely and tightly fitted with the upper end surfaces of the anti-sinking interlocking brick group. Furthermore, the anti-sinking interlocking brick group described in the utility model is composed of 5 to 33 wedge-shaped anti-sinking interlocking bricks, and the wedge-shaped anti-sinking interlocking bricks are divided into double male bricks 14, male and female bricks 15 and female bricks 16, wherein the number of double male bricks is one and is located in the middle of the anti-sinking interlocking brick group, the number of female bricks is two and is respectively located at the outermost sides of the anti-sinking interlocking brick group, and the others are male and female bricks. Furthermore, the upper end surface of the anti-sinking interlocking brick group described in the utility model is an arc surface, and the arc surface is tightly fitted with the lower end surface of the leveling self-locking brick group, and the lower end surface of the anti-sinking interlocking brick group is a horizontal flat surface. Furthermore, the double male bricks described in the utility model are symmetrically provided with bosses 18 on the upper part of the two side surfaces of the wedge-shaped anti-sinking interlocking bricks; the male and female bricks are provided with bosses on the upper part of one side surface of the wedge-shaped anti-sinking interlocking bricks, and grooves 17 on the upper part of the other side surface; the female bricks are provided with grooves on the upper part of one side surface of the wedge-shaped anti-sinking interlocking bricks; when the adjacent wedge-shaped anti-sinking interlocking bricks are tightly fitted, the bosses are placed in the corresponding grooves and the maximum gap width between the two is less than 2mm. Furthermore, the fan-shaped central angle formed by all the wedge-shaped anti-sinking interlocking bricks in the utility model is 25 to 80°. Furthermore, the inclination angle of the inclined surface on the upper supporting brick and the lower supporting brick described in the utility model is equal to the inclination angle of the side surface of the anti-sinking interlocking brick group and the leveling self-locking brick group. Example

[0034] See also Figure 3 to Figure 12The technical solution of the utility model is: the anti-sinking interlocking masonry is composed of an anti-sinking interlocking brick group, a leveling self-locking brick group, and a supporting brick group. The masonry is all magnesia refractory bricks, specifically magnesia-chrome bricks, containing 18% chromium.

[0035] See Figure 7 The anti-sinking interlocking brick set consists of 13 wedge-shaped anti-sinking interlocking bricks. The wedge-shaped anti-sinking interlocking bricks are divided into double male bricks, male and female bricks, and female bricks. Double male bricks, male and female bricks, and female bricks are all made based on vertical thick wedge-shaped bricks. The size of the vertical thick wedge-shaped bricks is 300×(75 / 55)×150mm. Double male bricks are symmetrically provided with bosses on the upper part of the two sides of the vertical thick wedge-shaped bricks. Male and female bricks are provided with bosses on the upper part of one side of the vertical thick wedge-shaped brick, and grooves on the upper part of the other side. The female brick is provided with a groove on the upper part of one side of the vertical thick wedge-shaped brick. The height of the boss is 14mm, and the depth of the groove is 15mm. When the side of the wedge-shaped anti-sinking interlocking brick with the boss is pressed against the side of the other anti-sinking interlocking brick with the groove, the boss fits into the groove, and the maximum gap width between the two is 1.5mm.

[0036] The center of the anti-sinking interlocking brick group is a double male brick, with 5 male and female bricks on both sides of the double male brick, and a female brick on the outermost side of the anti-sinking interlocking brick group. The side of the male and female bricks with grooves faces the side of the "double male bricks"; the side of the male and female bricks with bosses faces the side of the adjacent male and female bricks with grooves; the side of the female brick with grooves faces the side of the adjacent male and female bricks with bosses. The center angle of the anti-sinking interlocking brick group is 60°.

[0037] The leveling self-locking brick group consists of 22 vertical thick wedge-shaped bricks, and the size of the vertical thick wedge-shaped bricks is 380×(80 / 60)×150mm. The lower curvature of the leveling self-locking brick group is consistent with the upper curvature of the anti-sinking interlocking brick group. The center angle of the leveling self-locking brick group is the same as the center angle of the anti-sinking interlocking brick group, which is 60°.

[0038] The supporting brick group is composed of upper supporting bricks and lower supporting bricks. One side of the upper supporting bricks and lower supporting bricks is an inclined surface, and the inclination angle is the same as the central angle of the anti-sinking interlocking brick group, which is 60°. The height of the upper supporting brick is twice the height of the brick ring, and the height of the lower supporting brick is 1 times the height of the brick ring. The width of both is 150mm. The inclined surfaces of the upper supporting bricks and lower supporting bricks are tightly fitted with the sides of the anti-sinking interlocking brick group and the leveling self-locking brick group, and the other side is tightly fitted with the furnace wall bricks.

[0039] During the overhaul of the flame furnace, first pre-lay the upper support bricks, lower support bricks, anti-sinking interlocking brick groups, and leveling self-locking brick groups according to the masonry drawings for trial laying. Fig.12 Determine the part of the leveling self-locking brick group that exceeds the height of the upper supporting brick, and the part of the anti-sinking interlocking brick group that exceeds the height range of the lower supporting brick, and cut them off. The effect is as follows Figure 5-Figure 7As shown, each brick is numbered. When the flame furnace is formally built, after the furnace walls on both sides of the discharge port are built, the lower support bricks, upper support bricks and adjacent furnace wall brick rings on both sides are built first; then the arch tire is set up, and the anti-sinking interlocking brick group is built according to the number; then the anti-sinking interlocking brick group is used as the arch tire, and the leveling self-locking brick group is built according to the number. After the leveling self-locking brick group is built, the brick ring is built directly on it without leveling. The final masonry effect of the flame furnace is as follows Figure 5 shown.

[0040] The use method of the utility model: When the flame furnace is produced, the weight of the furnace wall bricks above the discharge port opening is dispersed on the end faces of the vertical thick wedge bricks of the 22 leveling self-locking brick groups, and compressive stress is generated respectively. Then, the leveling self-locking brick group transfers part of the compressive stress downward to the anti-sinking interlocking brick group, which is also dispersed on the end faces of the 13 wedge-shaped anti-sinking interlocking bricks, and compressive stress is generated respectively. Therefore, the weight of the furnace wall bricks borne by a single wedge-shaped anti-sinking interlocking brick / vertical thick wedge brick is inversely proportional to the number of wedge-shaped anti-sinking interlocking bricks / vertical thick wedge bricks, and both are much smaller than a single cross-river brick; the wedge-shaped anti-sinking interlocking bricks and the vertical thick wedge bricks are subjected to compressive stress by the end faces of the brick body, which is different from the cross-river bricks that are subjected to bending stress by the large surface of the brick body, thereby giving play to the mechanical characteristics of the magnesia refractory brick material that the compressive strength (>35MPa) is much greater than the bending strength. Therefore, the wedge-shaped anti-sinking interlocking bricks and the vertical thick wedge bricks are not easy to be broken.

[0041] During production, if the cold copper raw material directly hits the flame furnace inlet composite masonry, the impact force during the collision is also dispersed to the end faces of the 22 vertical thick wedge-shaped bricks, and then dispersed to the end faces of the 13 wedge-shaped anti-sinking interlocking bricks, and compressive stress is generated respectively. Similarly, the wedge-shaped anti-sinking interlocking bricks and the vertical thick wedge-shaped bricks are not easy to be broken.

[0042] The wedge-shaped anti-sinking interlocking bricks are interlocked by placing the bosses into the grooves; the lower supporting bricks then lock the anti-sinking interlocking brick group from the side. Even if a "wedge-shaped anti-sinking interlocking brick" breaks, it will not fall off, so that the shape of the anti-sinking interlocking brick group always remains intact, and can reliably support the leveling self-locking brick group. The vertical thick wedge bricks of the leveling self-locking brick group are self-locking with each other through friction, and the upper supporting bricks then lock the leveling self-locking brick group from the side, especially the anti-sinking interlocking brick group supports the leveling self-locking brick group from below. Even if a vertical thick wedge brick breaks, it will not fall off, and the shape of the leveling self-locking brick group always remains intact, reliably supporting the upper furnace wall brick ring at the discharge port opening, so that the brick ring will not disintegrate and damage and cause the furnace wall to collapse.

[0043] The utility model adopts a combination design of multiple brick types, and multiple refractory bricks share the weight of furnace wall bricks or the impact force of copper raw materials; by changing the force-bearing mode, the end face of the brick body bears compressive stress instead of the large face bearing bending stress, giving full play to the characteristics of magnesia refractory bricks that the compressive performance is much stronger than the bending strength, and a single refractory brick in the combined masonry is not easy to be broken / broken. Even if a single refractory brick in the combined masonry is broken / broken, it will not fall, so that the shape of the combined masonry is always kept intact, and the upper furnace wall brick ring at the discharge port opening is reliably supported, and the brick ring will not disintegrate and cause the furnace wall to collapse. After the combined masonry of the utility model is used to replace the river bricks, the life of the flame furnace is increased from 6 months to 36 months; after the width of the discharge port is increased from 600mm to 900mm, the life of the flame furnace is 32 months. With the significant extension of the furnace life, the amount of refractory materials used for maintenance is greatly reduced. In addition, when the flame furnace is regularly shut down for maintenance, cleaning of coke and other operations, the safety of personnel is guaranteed.

Claims

1. A flame furnace with an anti-sinking interlocking masonry with a discharge port, comprising a furnace body, a feed port is arranged on the top of the furnace body, and a discharge port is arranged on one side of the bottom of the furnace body, characterized in that: An anti-sinking interlocking masonry is arranged on the furnace body above the discharge port, and the anti-sinking interlocking masonry is composed of a supporting brick group, a leveling self-locking brick group and an anti-sinking interlocking brick group, wherein the supporting brick group is composed of two upper supporting bricks and two lower supporting bricks, the two upper supporting bricks are stacked on the two lower supporting bricks respectively, and the two lower supporting bricks are respectively arranged on the left and right sides above the discharge port, and the inner sides of the upper supporting bricks and the lower supporting bricks are arranged to be aligned inclined surfaces, and the inclined surfaces on the left and right sides form an inverted eight-shape; the leveling self-locking brick group is stacked on the anti-sinking interlocking brick group, and the leveling self-locking brick group and the anti-sinking interlocking brick group are built together between the inclined surfaces on the left and right sides.

2. A flame furnace with an anti-sinking interlocking masonry structure at a discharge port according to claim 1, characterized in that: The leveling self-locking brick group is composed of 5 to 30 vertical thick wedge-shaped bricks densely arranged side by side. The upper end surfaces of all vertical thick wedge-shaped bricks are on the same horizontal plane and remain flush with the upper end surfaces of the upper supporting bricks. The lower end surfaces of the vertical thick wedge-shaped bricks are completely and tightly fitted with the upper end surfaces of the anti-sinking interlocking brick group.

3. A flame furnace with an anti-sinking interlocking masonry structure at a discharge port according to claim 1, characterized in that: The anti-sinking interlocking brick group is composed of 5 to 33 wedge-shaped anti-sinking interlocking bricks, and the wedge-shaped anti-sinking interlocking bricks are divided into double male bricks, male and female bricks and female bricks. Among them, the number of double male bricks is one and is located in the middle of the anti-sinking interlocking brick group, the number of female bricks is two and are respectively located at the outermost sides of the anti-sinking interlocking brick group, and the others are male and female bricks.

4. A flame furnace with an anti-sinking interlocking masonry structure at a discharge port according to claim 1, characterized in that: The upper end surface of the anti-sinking interlocking brick group is an arc-shaped surface, and the arc-shaped surface is closely fitted with the lower end surface of the leveling self-locking brick group, and the lower end surface of the anti-sinking interlocking brick group is a horizontal flat surface.

5. A flame furnace with an anti-sinking interlocking masonry structure at a discharge port according to claim 3, characterized in that: The double male bricks are symmetrically provided with bosses on the upper part of the two side surfaces of the wedge-shaped anti-sinking interlocking bricks; the male and female bricks are provided with a boss on the upper part of one side surface of the wedge-shaped anti-sinking interlocking bricks, and a groove on the upper part of the other side surface; the female bricks are provided with a groove on the upper part of one side surface of the wedge-shaped anti-sinking interlocking bricks; when adjacent wedge-shaped anti-sinking interlocking bricks are tightly fitted, the bosses are placed in the corresponding grooves and the maximum gap width between the two is less than 2mm.

6. A flame furnace with an anti-sinking interlocking masonry structure at a discharge port according to claim 3, characterized in that: The central angle of the fan-shaped structure formed by all wedge-shaped anti-sinking interlocking bricks is 25 to 80 degrees.

7. A flame furnace with an anti-sinking interlocking masonry structure at a discharge port according to claim 1, characterized in that: The furnace body is built by a plurality of brick rings; the heights of the upper supporting bricks and the lower supporting bricks are both integer multiples of the heights of the brick rings.

8. A flame furnace with an anti-sinking interlocking masonry structure at a discharge port according to claim 1, characterized in that: The inclination angles of the inclined surfaces on the upper supporting bricks and the lower supporting bricks are equal to the inclination angles of the side surfaces of the anti-sinking interlocking brick group and the leveling self-locking brick group.

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