A separable dust collection chute device for a smelting furnace

Abstract

The utility model discloses a smelting furnace detachable dust removal chute device, including smelting furnace body, smelting furnace body is located both sides of the tapping hole and is equipped with the support beam, two the support beam top is equipped with the chute structure, the support beam is located both sides of chute structure and is equipped with the threaded rod, the chute structure top is equipped with the dust cover, dust cover top middle part is equipped with the air outlet, be equipped with the fan in the air outlet, the chute structure includes the outer tank, be equipped with the inner tank in the outer tank, the outer tank with inner tank coaxial arrangement, the both sides of skirt of outer tank below are equipped with, be equipped with the skirt on the opening and the threaded rod matched avoidance groove. This kind of dust removal chute device, stable structure, chute structure is convenient to install and dismount, has reduced the overall size of dust removal chute device, has effectively guaranteed the dust removal effect of dust removal chute device.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology for smelting furnaces, and in particular to a separable dust removal chute device for smelting furnaces. Background Technology

[0002] A smelting furnace is a device that melts metal ingots and some scrap metals, adds necessary alloying components, and then melts them into the desired alloy through operations such as slag removal and refining. In existing smelting furnaces, the slag chute is fixedly connected to the furnace body. During converter operation, the chute rotates synchronously with the furnace body. This structure requires the dust collector hood to be set with a large size to accommodate the movement of the chute, resulting in an excessively large opening in the dust collector hood. This easily leads to airflow mixing into the dust collector hood, which not only reduces the dust removal efficiency of the dust collector hood, but also makes it difficult to seal the slag chute perimeter, resulting in serious smoke and dust overflow. To address this, we propose a separable dust collector chute device for smelting furnaces. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a separable dust collection chute device for smelting furnaces. This invention solves the problem of existing slag chutes in smelting furnaces being fixedly connected to the furnace body. During converter operation, the chute rotates synchronously with the furnace body. This structure necessitates a large dust collection hood to accommodate the chute's movement, resulting in an excessively large opening. This allows airflow to easily mix into the dust collection hood, reducing its dust collection efficiency and making it difficult to seal the slag chute perimeter, leading to severe dust overflow.

[0004] This utility model discloses a separable dust removal chute device for a smelting furnace, comprising a smelting furnace body, with support beams on both sides of the slag outlet of the smelting furnace body, a chute structure above the two support beams, threaded rods on both sides of the support beams of the chute structure, the chute structure and the threaded rods being fixedly connected by nuts, a dust removal hood above the chute structure, an air outlet in the middle of the upper part of the dust removal hood, and a fan inside the air outlet;

[0005] The chute structure includes an outer trough body, an inner trough body is provided inside the outer trough body, the outer trough body and the inner trough body are coaxially arranged, and skirts are provided on both sides below the outer trough body, and clearance grooves matching the threaded rod are opened on the skirts.

[0006] In the above scheme, the upper end of the outer tank is provided with a water inlet pipe, and the lower end of the outer tank near the water inlet pipe is provided with a water outlet pipe. Both the water inlet pipe and the water outlet pipe are provided with valves.

[0007] In the above scheme, the inner wall of the dust removal hood is provided with a wear-resistant ceramic lining plate.

[0008] In the above scheme, a reinforcing rod is provided below the support beam and inclined downward, and the reinforcing rod is fixedly connected to the furnace body below.

[0009] In the above scheme, the support beam is inclined downwards at an angle of 8-12°, and multiple crossbeams are arranged at equal intervals between the two support beams.

[0010] In the above scheme, the gap between the smelting furnace body and the chute structure is filled with a high-temperature resistant aluminum silicate fiber blanket.

[0011] The advantages and beneficial effects of this utility model are as follows: This utility model provides a separable dust removal chute device for a smelting furnace. The cross-section of the dust removal hood is reduced by 40-50% compared to the transmission hood. The fan speed is 18-22 m / s. When the fan is working, it drives the airflow. Through the airflow, dust can be removed from the inside of the chute structure. The threaded rod is located inside the clearance groove. Through the cooperation between the threaded rod and the nut, the chute structure can be stably installed on the support beam. A cavity is formed between the outer trough and the inner trough. Cooling water can be injected into the outer trough and the inner trough through the water inlet pipe. The flowing cooling water can effectively improve the cooling speed of the chute structure. This dust removal chute device has a stable structure, and the chute structure is easy to install and disassemble. While reducing the overall size of the dust removal chute device, it effectively ensures the dust removal effect of the dust removal chute device. Attached Figure Description

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the present invention;

[0015] Figure 3 This is a schematic diagram of part A of the present invention.

[0016] In the diagram: 1. Furnace body; 2. Support beam; 3. Chute structure; 31. Outer trough; 32. Inner trough; 33. Skirt; 34. Clearance groove; 35. Water inlet pipe; 36. Water outlet pipe; 37. Valve; 4. Threaded rod; 5. Nut; 6. Dust collector cover; 7. Air outlet; 8. Fan; 9. Wear-resistant ceramic liner; 10. Reinforcing rod; 11. Crossbeam. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0018] like Figure 1-3 As shown, this utility model is a separable dust removal chute device for a smelting furnace, including a smelting furnace body 1. Support beams 2, each 800-1200mm thick, are provided on both sides of the slag outlet of the smelting furnace body 1. A chute structure 3 is provided above the two support beams 2. Threaded rods 4 are provided on both sides of the chute structure 3, and the chute structure 3 and the threaded rods 4 are fixedly connected by nuts 5. The nuts 5 are threadedly connected to the threaded rods 4. A dust removal hood 6 is provided above the chute structure 3. The cross-section of the dust removal hood 6 is 40-50% smaller than that of the transmission hood. An air outlet 7, a 400mm diameter circular pipe, is provided in the center of the upper part of the dust removal hood 6. A fan 8 is installed inside the air outlet 7, with a wind speed of 18-22m / s. When the fan 8 is working, it drives the airflow, which removes dust from the inside of the chute structure 3.

[0019] The chute structure 3 includes an outer trough 31, inside which is an inner trough 32. A cavity is formed between the outer trough 31 and the inner trough 32. By injecting water into the cavity, the chute structure 3 can be cooled quickly. The outer trough 31 and the inner trough 32 are coaxially arranged. Skirts 33 are provided on both sides below the outer trough 31. The skirts 33 are provided with clearance grooves 34 that match the threaded rod 4. The threaded rod 4 is located inside the clearance grooves 34. Through the mutual cooperation between the threaded rod 4 and the nut 5, the chute structure 3 can be stably installed on the support beam 2.

[0020] The upper end of the outer tank 31 is provided with a water inlet pipe 35, and the lower end of the outer tank 31 near the water inlet pipe 35 is provided with a water outlet pipe 36. Both the water inlet pipe 35 and the water outlet pipe 36 are provided with valves 37. Cooling water can be injected into the outer tank 31 and the inner tank 32 through the water inlet pipe 35. The cooling speed of the chute structure 3 can be effectively improved by the flow of cooling water. The valves 37 can control the opening and closing of the water inlet pipe 35 and the water outlet pipe 36.

[0021] The inner wall of the dust removal hood 6 is provided with a wear-resistant ceramic liner 9, and the thickness of the wear-resistant ceramic liner 9 is not less than 3mm.

[0022] The support beam 2 is provided with a downwardly inclined reinforcing rod 10. The reinforcing rod 10 is fixedly connected to the furnace body 1. The reinforcing rod 10 effectively increases the overall support strength of the support beam 2.

[0023] The support beam 2 is inclined downwards at an angle of 8-12°. Multiple crossbeams 11 are arranged at equal intervals between the two support beams 2, and the distance between two adjacent crossbeams 11 is no more than 500mm.

[0024] The gap between the furnace body 1 and the chute structure 3 is filled with a high-temperature resistant aluminum silicate fiber blanket.

[0025] Specifically, in this utility model, the cross-section of the dust removal hood 6 is reduced by 40-50% compared to the transmission hood, and the wind speed of the fan 8 is 18-22 m / s. When the fan 8 is working, the fan 8 drives the airflow, and the dust inside the chute structure 3 can be removed by the airflow. The threaded rod 4 is located inside the clearance groove 34. Through the cooperation between the threaded rod 4 and the nut 5, the chute structure 3 can be stably installed on the support beam 2. A cavity is formed between the outer trough 31 and the inner trough 32. Cooling water can be injected into the outer trough 31 and the inner trough 32 through the water inlet pipe 35. The flowing cooling water can effectively improve the cooling speed of the chute structure 3. At the same time, the valve 37 can control the opening and closing of the water inlet pipe 35 and the water outlet pipe 36.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A detachable dust removal chute device for a smelting furnace, comprising a smelting furnace body (1), characterized in that, The smelting furnace body (1) is provided with support beams (2) on both sides of the slag outlet. A chute structure (3) is provided above the two support beams (2). Threaded rods (4) are provided on both sides of the support beams (2) and the threaded rods (4). The chute structure (3) and the threaded rods (4) are fixedly connected by nuts (5). A dust removal hood (6) is provided above the chute structure (3). An air outlet (7) is provided in the middle of the upper part of the dust removal hood (6). A fan (8) is provided inside the air outlet (7). The chute structure (3) includes an outer chute body (31), an inner chute body (32) is provided inside the outer chute body (31), the outer chute body (31) and the inner chute body (32) are coaxially arranged, and skirts (33) are provided on both sides below the outer chute body (31), and clearance grooves (34) matching the threaded rod (4) are provided on the skirts (33).

2. The detachable dust removal chute device for a smelting furnace according to claim 1, characterized in that, The upper end of the outer tank (31) is provided with a water inlet pipe (35), and the lower end of the outer tank (31) near the water inlet pipe (35) is provided with a water outlet pipe (36). Both the water inlet pipe (35) and the water outlet pipe (36) are provided with valves (37).

3. The detachable dust removal chute device for a smelting furnace according to claim 1, characterized in that, The inner wall of the dust collector hood (6) is provided with a wear-resistant ceramic lining plate (9).

4. The detachable dust removal chute device for a smelting furnace according to claim 1, characterized in that, The support beam (2) is provided with a downwardly inclined reinforcing rod (10), which is fixedly connected to the furnace body (1) below.

5. A detachable dust removal chute device for a smelting furnace according to claim 1, characterized in that, The support beam (2) is inclined downwards, and the inclination angle of the support beam (2) is 8-12°. There are multiple crossbeams (11) arranged at equal intervals between the two support beams (2).

6. The detachable dust removal chute device for a smelting furnace according to claim 1, characterized in that, The gap between the furnace body (1) and the chute structure (3) is filled with a high-temperature resistant aluminum silicate fiber blanket.

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