Flame path structure of carbon roasting furnace

Abstract

The utility model discloses a flame path structure of a carbon baking furnace, which is characterized in that the bottom end of a T-shaped guide brick is fixedly arranged on the upper surface of a bottom plate, the left side and the right side of the bottom plate are respectively provided with an inverted L-shaped guide brick, and a rectangular guide brick is arranged between the inverted L-shaped guide brick and the T-shaped guide brick; a flue is defined by the rectangular guide bricks, the inverted-L-shaped guide bricks and the bottom plate. And the rectangular guide bricks, the T-shaped guide bricks and the bottom plate define a flue. According to the flame path structure of the carbon baking furnace, the T-shaped guide bricks, the rectangular guide bricks and the inverted-L-shaped guide bricks are reasonably arranged to guide smoke, in the using process, the smoke flows in the flue, the temperature difference between the upstream and the downstream of the smoke flow in the flame path can be prevented from being too large by canceling a baffle wall, the uniformity of the temperature in the flame path is guaranteed, and the service life of the flame path is prolonged. Meanwhile, the flow resistance of smoke is reduced, the heating efficiency is improved, deformation of the T-shaped guide bricks, the rectangular guide bricks and the inverted-L-shaped guide bricks caused by too large temperature difference is avoided, and the overall service life of the roasting furnace is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of fire channel structure, and in particular to a fire channel structure for a carbon roasting furnace. Background Technology

[0002] The fire channel is a hollow structure composed of refractory bricks. Fuel combustion takes place inside the fire channel, and heat is transferred to the anode in the adjacent feed box through the refractory brick wall. The volatiles produced by the anode during calcination are drawn into the fire channel wall and burned together. The calcination process is mainly affected by the flow field, temperature field distribution and heat transfer inside the fire channel.

[0003] Traditional flue gas systems typically have three baffle walls, causing the flue gas to flow in a "W" shape. Some roasting furnaces also have one or five baffle walls, causing the flue gas to flow in a "V" or "WV" shape. However, this method has the following drawbacks:

[0004] 1. The presence of baffle walls in the flue extends the flue gas travel distance, resulting in an excessively large temperature difference between the upstream and downstream flue gas flow in the flue gas flow within the furnace chamber during the same roasting stage;

[0005] 2. The presence of baffle walls in the flue greatly reduces the cross-sectional area of ​​flue gas flow, resulting in greater resistance to flue gas operation. In actual production operations, a higher negative pressure is required, which will increase the system's air leakage, reduce the flue gas temperature in the flue to a certain extent, and also increase the consumption of fuel and packing materials.

[0006] 3. The flue gas velocity field distribution is uneven on both the upstream and downstream sides of the baffle wall;

[0007] In conclusion, how to develop a fire channel structure for a carbon roasting furnace has become an urgent problem for those skilled in the art to solve. Utility Model Content

[0008] The purpose of this invention is to provide a flue structure for a carbon roasting furnace, which solves the problems of small cross-sectional area of ​​flue gas flow and long running distance in existing flue structures.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] This utility model discloses a flue structure for a carbon roasting furnace, comprising a bottom plate, T-shaped guide bricks, rectangular guide bricks, and inverted L-shaped guide bricks. The bottom end of the T-shaped guide bricks is fixedly disposed on the upper surface of the bottom plate. Inverted L-shaped guide bricks are disposed on both the left and right sides of the bottom plate, and rectangular guide bricks are disposed between the inverted L-shaped guide bricks and the T-shaped guide bricks. The rectangular guide bricks, inverted L-shaped guide bricks, and bottom plate form a flue.

[0011] Furthermore, the bottom plate is provided with side walls at both the left and right ends, and a top plate is provided at the top of the side walls.

[0012] Furthermore, the bottom plate, top plate, and two side walls form a cavity, and the T-shaped guide brick, rectangular guide brick, and inverted L-shaped guide brick are disposed within the cavity.

[0013] Furthermore, the cavity is provided with end walls at both the front and rear ends, and the end walls are fixedly connected to the base plate.

[0014] Furthermore, the side walls, bottom plate, top plate, and end walls are all made of fire-resistant materials.

[0015] Furthermore, the T-shaped guide bricks, rectangular guide bricks, and inverted L-shaped guide bricks are all made of refractory materials.

[0016] Furthermore, multiple sets of T-shaped guide bricks are arranged in an array along the axial direction in the middle of the cavity, rectangular guide bricks are arranged on both sides of the T-shaped guide bricks, and inverted L-shaped guide bricks are arranged on the outer side of the rectangular guide bricks.

[0017] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0018] The flue structure of this carbon roasting furnace utilizes a rational arrangement of T-shaped guide bricks, rectangular guide bricks, and inverted L-shaped guide bricks to guide the flue gas flow. Furthermore, the use of large bricks allows the flue gas to flow smoothly within the flue. By eliminating the baffle walls, excessive temperature differences between the upstream and downstream sides of the flue gas flow are avoided, ensuring temperature uniformity within the flue. This also reduces flow resistance, improves heating efficiency, and prevents deformation of the T-shaped, rectangular, and inverted L-shaped guide bricks due to excessive temperature differences, thus extending the overall lifespan of the roasting furnace. In summary, the flue structure of this carbon roasting furnace is ingeniously designed, simple in structure, and practical in function, effectively solving the problems of small cross-sectional area and long operating distance of existing flue structures. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Figure 1 This is an isometric view of the fire channel structure of the carbon roasting furnace of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the fire channel of the carbon roasting furnace of this utility model.

[0022] Figure 3 Diagram showing the fit between T-shaped guide bricks, rectangular guide bricks, and inverted L-shaped guide bricks;

[0023] Explanation of reference numerals in the attached drawings: 1. Side wall; 2. Top plate; 3. Bottom plate; 4. T-shaped guide brick; 5. Rectangular guide brick; 6. Inverted L-shaped guide brick; 7. End wall; 8. Cavity; 9. Flue. Detailed Implementation

[0024] like Figures 1 to 3 As shown, a fire channel structure for a carbon roasting furnace includes a bottom plate 3, a top plate 2, a side wall 1, an end wall 7, a T-shaped guide brick 4, a rectangular guide brick 5, and an inverted L-shaped guide brick 6.

[0025] The base plate 3 has side walls 1 at its left and right ends, and a top plate 2 at the top of each side wall 1. The base plate 3, top plate 2, and two side walls 1 form a cavity 8, and the T-shaped guide brick 4, rectangular guide brick 5, and inverted L-shaped guide brick 6 are disposed within the cavity 8. The front and rear ends of the cavity 8 are each provided with end walls 7, which are fixedly connected to the base plate 3.

[0026] Multiple sets of T-shaped guide bricks 4 are arranged in an array along the axial direction in the middle of the cavity 8. Rectangular guide bricks 5 are arranged on both sides of the T-shaped guide bricks 4, and inverted L-shaped guide bricks 6 are arranged on the outer side of the rectangular guide bricks 5.

[0027] The bottom end of the T-shaped guide brick 4 is fixedly set on the upper surface of the base plate 3. The left and right sides of the base plate 3 are provided with inverted L-shaped guide bricks 6. A rectangular guide brick 5 is provided between the inverted L-shaped guide brick 6 and the T-shaped guide brick 4. The rectangular guide brick 5, the inverted L-shaped guide brick 6 and the base plate 3 form a flue 9.

[0028] The side walls 1, bottom plate 3, top plate 2, and end walls 7 are all made of refractory materials. The T-shaped guide bricks 4, rectangular guide bricks 5, and inverted L-shaped guide bricks 6 are all made of refractory materials to ensure the overall fire resistance and heat transfer performance of the fire channel.

[0029] In this embodiment, the T-shaped guide brick 4, rectangular guide brick 5, and inverted L-shaped guide brick 6 are all assembled together, which can guide the flow of flue gas in the fire channel. At the same time, eliminating the baffle wall can avoid excessive temperature difference between the upstream and downstream of the flue gas flow in the fire channel, ensuring the uniformity of temperature in the fire channel and preventing deformation of the T-shaped guide brick 4, rectangular guide brick 5, and inverted L-shaped guide brick 6 due to excessive temperature difference.

[0030] In this embodiment, flues 9 are formed between the T-shaped guide brick 4, the rectangular guide brick 5, and the inverted L-shaped guide brick 6, which enables the flue gas to flow smoothly and has low operating resistance.

[0031] In this embodiment, the T-shaped guide brick 4, the rectangular guide brick 5, and the inverted L-shaped guide brick 6 all adopt a large brick structure. The use of a large brick structure can reduce the amount of deformation, thereby extending the overall life of the roasting furnace. The construction and dismantling are also relatively simple.

[0032] The specific working principle of this utility model is as follows:

[0033] In use, the side wall 1 is built on the base plate 3. Then, the T-shaped guide bricks 4, the rectangular guide bricks 5, and the inverted L-shaped guide bricks 6 are built into the cavity 8 formed by the side wall 1 and the base plate 3. The use of large bricks simplifies the construction process. Next, the end wall 7 and the top plate 2 are built. During the use of the flue, the flue gas flows in the flue 9. By eliminating the baffle wall, the temperature difference between the upstream and downstream of the flue gas flow is avoided, ensuring the uniformity of the temperature in the flue. At the same time, the flow resistance of the flue gas is reduced, improving the heating efficiency. It also avoids the deformation of the T-shaped guide bricks 4, rectangular guide bricks 5, and inverted L-shaped guide bricks 6 due to excessive temperature difference, thereby extending the overall life of the roasting furnace.

[0034] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A fire channel structure for a carbon roasting furnace, characterized in that: It include bottom plate (3), T type guide brick (4), rectangular guide brick (5) and inverted L type guide brick (6), the bottom end of T type guide brick (4) is fixedly arranged on the upper surface of bottom plate (3), the left side and right side of bottom plate (3) are provided with inverted L type guide brick (6), inverted L type guide brick (6) is provided with rectangular guide brick (5) between T type guide brick (4);Rectangular guide brick (5), inverted L type guide brick (6) and bottom plate (3) enclose flue (9);Rectangular guide brick (5), T type guide brick (4) and bottom plate (3) enclose flue (9).

2. The hearth structure of a carbon baking furnace according to claim 1, characterized in that: The left end and the right end of the bottom plate (3) are provided with side walls (1), and the top end of the side wall (1) is provided with a top plate (2).

3. The hearth structure of a carbon baking furnace according to claim 2, characterized in that: The bottom plate (3), the top plate (2) and the two side walls (1) enclose a cavity (8), and the T type guide brick (4), the rectangular guide brick (5) and the inverted L type guide brick (6) are arranged in the cavity (8).

4. The hearth structure of a carbon baking furnace according to claim 3, characterized in that: The front end and the rear end of the cavity (8) are provided with end walls (7), and the end walls (7) are fixedly connected with the bottom plate (3).

5. The hearth structure of a carbon baking furnace according to claim 4, characterized in that: The side wall (1), the bottom plate (3), the top plate (2) and the end wall (7) are all made of refractory material.

6. The hearth structure of a carbon baking furnace according to claim 1, characterized in that: The T type guide brick (4), the rectangular guide brick (5) and the inverted L type guide brick (6) are all made of refractory material.

7. The hearth structure of a carbon baking furnace according to claim 3, characterized in that: A plurality of groups of T type guide bricks (4) are arranged in the middle of the cavity (8) along the axial direction, rectangular guide bricks (5) are arranged on both sides of the T type guide bricks (4), and inverted L type guide bricks (6) are arranged outside the rectangular guide bricks (5).

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