Dust collecting device for fuming furnace

Abstract

The utility model discloses a dust collecting device for a fuming furnace, which belongs to the technical field of fuming furnaces and comprises a shell, an isolation plate is fixed in the shell, a rotary drum is arranged in the middle of the isolation plate, a filter screen drum is fixed at the bottom of the rotary drum, and a motor is mounted on the inner top wall of the shell. A rotating shaft is fixed to an output shaft of the motor, a gear is fixed to the bottom end of the rotating shaft, and a movable ring is rotationally installed on the isolation plate. Through cooperative use of the shell, the isolation plate, the rotating cylinder, the filter screen cylinder, the motor, the rotating shaft, the gear, the movable ring, the outer gear ring, the first brush plate, the cleaning brush and the fixed cylinder, the filter screen cylinder and the first brush plate can be cleaned at the same time in the process of filtering dust of the fuming furnace, and manual regular cleaning and dust collection are not needed; the dust collecting device for the fuming furnace is convenient for workers to use, improves the dredging rate of the filter screen cylinder and has higher filtering speed, so that the practicability of the dust collecting device for the fuming furnace is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuming furnaces, in particular to a dust collection device for a fuming furnace. Background Technique

[0002] A fuming furnace is a device that blows a mixture of air and pulverized coal into liquid slag to volatilize some valuable metals in the slag in the form of metals, oxides or sulfides. The fuming furnace was originally a device for treating lead blast furnace slag. When in use, the fuming furnace will generate a large amount of flue gas dust. The flue gas contains a large amount of solid dust particles. Over time, it is easy to cause blockage of the fuming furnace flue when adhering to the inner wall of the exhaust pipe, thus affecting the flue gas emission efficiency.

[0003] For example, a dust collection device for a fuming furnace is disclosed in the utility model with the application number 202222175785.9. Through the mutual cooperation among the filter screen, the dust collection box and the filter box, the flue gas dust of the fuming furnace is filtered successively by multiple filter screens with different mesh sizes, and the solid dust particles are filtered down and collected in the dust collection box, effectively reducing its adhesion to the inner wall of the flue and ensuring the flue gas exhaust efficiency of the flue.

[0004] The similar applications currently still have deficiencies:

[0005] This kind of dust collection device for a fuming furnace uses filter screens with different mesh sizes to filter dust. However, the filtered dust will adhere to the filter screen or the inner wall of the connecting pipe for collection. Adhesion to the filter screen and the inner wall of the connecting pipe will affect the discharge of gas, reduce the dust filtration efficiency, and even cause blockage and inability to filter and exhaust smoke.

[0006] Therefore, a dust collection device for a fuming furnace is designed to optimize the above problems. Content of the Utility Model

[0007] The main purpose of the utility model is to provide a dust collection device for a fuming furnace to solve the related technical problems raised in the above background technique.

[0008] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0009] A dust collection device for a fuming furnace, comprising a housing, an isolation plate is fixed inside the housing, a rotating cylinder is arranged at the middle position of the isolation plate, a filter screen cylinder is fixed at the bottom of the rotating cylinder, a motor is installed on the inner top wall of the housing, a rotating shaft is fixed to the output shaft of the motor, a gear is fixed to the bottom end of the rotating shaft, a movable ring is rotatably installed on the isolation plate, a first brush plate is fixed to the bottom of the movable ring, an external toothed ring is fixed to the outer side of the movable ring, and the external toothed ring meshes with the gear, cleaning brushes are symmetrically installed on the outer side of the movable ring, a fixed cylinder penetrates and is installed at the top of the housing, and the bottom end of the fixed cylinder penetrates and extends into the inside of the rotating cylinder.

[0010] Preferably: a first sprocket is fixed to the outer side of the rotating shaft, a second sprocket is fixed to the outer side of the rotating cylinder, a chain is arranged between the second sprocket and the first sprocket, a filter screen cover is fixed to the bottom of the fixed cylinder, a second brush plate is fixed to the inside of the rotating cylinder, and a movable plate is fixed between the second brush plates.

[0011] Preferably: a first set of balls is evenly arranged on the outer side of the rotating cylinder, a sliding groove is formed in the inner side wall of the movable ring, a limiting ring is fixed to the inside of the movable ring, and a second set of balls is evenly arranged at the bottom of the limiting ring.

[0012] Preferably: the filter screen cylinder is an inverted trapezoidal filter screen, and a refractory coating is arranged on the outer side of the filter screen cylinder.

[0013] Preferably: a sealing layer is fixed to the top of the movable ring, and the sealing layer is slidably connected to the bottom of the isolation plate.

[0014] Preferably: the filter screen cover is a hemispherical mesh cover, and support plates are arranged between the movable plate and the second brush plate.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The dust collection device for a fuming furnace provided by the present utility model, through the combined use of the housing, the isolation plate, the rotating cylinder, the filter screen cylinder, the motor, the rotating shaft, the gear, the movable ring, the external toothed ring, the first brush plate, the cleaning brushes and the fixed cylinder, can clean the filter screen cylinder and the first brush plate simultaneously during the process of filtering the dust of the fuming furnace, without the need for manual regular cleaning and dust collection, which not only facilitates the use of the staff, but also improves the dredging rate of the filter screen cylinder and has a higher filtering speed, thereby improving the practicability of the dust collection device for a fuming furnace;

[0017] Through the combined use of the first sprocket, the second sprocket, the chain, the filter screen cover, the second brush plate and the movable plate, the flue gas preliminarily filtered by the filter screen cylinder is further refined and filtered by the filter screen cover. At the same time, the rotation of the rotating shaft drives the rotation of the first sprocket, and then drives the second sprocket and the rotating cylinder to rotate in the same direction through the chain, so that the filter screen cylinder drives the movable plate and the second brush plate to rotate, cleaning the dust on the outer side of the filter screen cover. The fine dust after cleaning leaks back into the smelting furnace through the mesh holes of the filter screen cylinder after shutdown, which can improve the filtering effect of the flue gas, further reduce the impact of flue gas dust on the exhaust pipe, and is convenient for cleaning and use, thus improving the convenience of the dust collection device for the smelting furnace;

[0018] Through the combined use of the first ball, the limiting ring, the second ball and the sliding groove, while the rotating cylinder rotates, the movable plate on the outside rotates, so that the movable plate rolls inside the sliding groove at the same time, reducing the friction between the movable ring and the rotating cylinder. At the same time, the limiting ring and the second ball inside the movable ring rotate, so that the second ball rolls and rubs against the top of the isolation plate, thus reducing the friction damage caused during the rotation process and improving the protection effect of the dust collection device for the smelting furnace. Brief Description of the Drawings

[0019] Figure 1 is the front view sectional view of the present utility model;

[0020] Figure 2 of the present utility model Figure 1 is the enlarged view of the structure at A in;

[0021] Figure 3 is the schematic diagram of the fixed cylinder of the present utility model.

[0022] In the figure: 1, housing; 2, isolation plate; 3, rotating cylinder; 4, filter screen cylinder; 5, motor; 6, rotating shaft; 7, gear; 8, movable ring; 9, external gear ring; 10, first brush plate; 11, cleaning brush; 12, fixed cylinder; 13, first sprocket; 14, second sprocket; 15, chain; 16, filter screen cover; 17, second brush plate; 18, movable plate; 19, first ball; 20, limiting ring; 21, second ball; 22, sliding groove. Detailed Description of the Embodiment

[0023] To make the technical solutions of the present utility model clearer and more definite for those skilled in the art, the present utility model will be further described in detail below with reference to the embodiments and the accompanying drawings, but the embodiments of the present utility model are not limited thereto.

[0024] Embodiment 1

[0025] As Figures 1 - 3As shown in the figure, this embodiment provides a dust collection device for a fuming furnace, which includes a housing 1. A partition plate 2 is fixed inside the housing 1. A rotating cylinder 3 is arranged at the middle position of the partition plate 2. A filter screen cylinder 4 is fixed at the bottom of the rotating cylinder 3. A motor 5 is installed on the inner top wall of the housing 1. A rotating shaft 6 is fixed to the output shaft of the motor 5. A gear 7 is fixed to the bottom end of the rotating shaft 6. A movable ring 8 is rotatably installed on the partition plate 2. A first brush plate 10 is fixed to the bottom of the movable ring 8. An external gear ring 9 is fixed to the outer side of the movable ring 8, and the external gear ring 9 meshes with the gear 7. Cleaning brushes 11 are symmetrically installed on the outer side of the movable ring 8. A fixed cylinder 12 penetrates through the top of the housing 1, and the bottom end of the fixed cylinder 12 penetrates and extends into the inside of the rotating cylinder 3. A first sprocket 13 is fixed to the outer side of the rotating shaft 6. A second sprocket 14 is fixed to the outer side of the rotating cylinder 3. A chain 15 is arranged between the second sprocket 14 and the first sprocket 13. A filter screen cover 16 is fixed to the bottom of the fixed cylinder 12. A second brush plate 17 is fixed inside the rotating cylinder 3. A movable plate 18 is fixed between the second brush plates 17.

[0026] The flue gas dust discharged from the bottom of the housing 1 into the fuming furnace enters the rotating cylinder 3 and the fixed cylinder 12 after being filtered by the filter screen cylinder 4. The motor 5 is started to drive the rotating shaft 6 to rotate and drive the gear 7 to rotate in the reverse direction. Then, the movable ring 8, the cleaning brushes 11 and the first brush plate 10 are driven to rotate through the external gear ring 9. The first brush plate 10 cleans the dust on the outer side of the filter screen cylinder 4. The cleaned dust falls back to the bottom of the fuming furnace after the fuming furnace finishes working and shuts down, and finally is discharged out of the fuming furnace together with the slag discharge port. The flue gas preliminarily filtered by the filter screen cylinder 4 is further refined and filtered by the filter screen cover 16. At the same time, the rotation of the rotating shaft 6 will drive the first sprocket 13 to rotate, and then drive the second sprocket 14 and the rotating cylinder 3 to rotate in the same direction through the chain 15, so that the filter screen cylinder 4 drives the movable plate 18 and the second brush plate 17 to rotate, and cleans the dust on the outer side of the filter screen cover 16. The fine dust after cleaning leaks back into the fuming furnace through the mesh holes of the filter screen cylinder 4 after shutdown.

[0027] Embodiment 2

[0028] In this embodiment, as Figures 1 - 3 shown, a first set of balls 19 are evenly arranged on the outer side of the rotating cylinder 3. A chute 22 is formed on the inner side wall of the movable ring 8. A limiting ring 20 is fixed inside the movable ring 8. A second set of balls 21 are evenly arranged at the bottom of the limiting ring 20.

[0029] While the rotating cylinder 3 rotates, the movable plate 18 on the outer side rotates, so that the movable plate 18 rolls inside the chute 22 at the same time, reducing the friction between the movable ring 8 and the rotating cylinder 3. At the same time, the limiting ring 20 and the second set of balls 21 inside the movable ring 8 rotate, so that the second set of balls 21 roll and rub against the top of the partition plate 2.

[0030] In this embodiment, the filter screen cylinder 4 is an inverted trapezoidal filter screen, and a refractory coating is arranged on the outer side of the filter screen cylinder 4.

[0031] The arrangement of the inverted trapezoidal filter cylinder 4 facilitates the cleaning and collection of dust, and the refractory coating improves the protection effect on the filter cylinder 4.

[0032] In this embodiment, a sealing layer is fixed to the top of the movable ring 8, and the sealing layer is slidably connected to the bottom of the partition plate 2.

[0033] The arrangement of the sealing ring increases the sealing performance between the movable ring 8 and the partition plate 2, while maintaining their sliding connection relationship and reducing the entry of dust.

[0034] In this embodiment, the filter screen cover 16 is a hemispherical screen cover, and support plates are arranged between the movable plate 18 and the second brush plate 17.

[0035] The design of the hemispherical screen cover makes it easier for dust to fall and be collected, and the arrangement of the support plates improves the support effect on the second brush plate 17.

[0036] As described above, only further embodiments of the present utility model are provided, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the scope disclosed by the present utility model, according to the technical solution and concept of the present utility model, makes equivalent substitutions or changes, and all belong to the protection scope of the present utility model.

Claims

1. A dust collection device for a fuming furnace, characterized in that: It includes a housing (1), an isolation plate (2) is fixed inside the housing (1), a rotating cylinder (3) is arranged at the middle position of the isolation plate (2), a filter screen cylinder (4) is fixed at the bottom of the rotating cylinder (3), a motor (5) is installed on the inner top wall of the housing (1), a rotating shaft (6) is fixed to the output shaft of the motor (5), a gear (7) is fixed to the bottom end of the rotating shaft (6), a movable ring (8) is rotatably installed on the isolation plate (2), a first brush plate (10) is fixed to the bottom of the movable ring (8), an external gear ring (9) is fixed to the outer side of the movable ring (8), and the external gear ring (9) is engaged with the gear (7), cleaning brushes (11) are symmetrically installed on the outer side of the movable ring (8), a fixed cylinder (12) is installed through the top of the housing (1), and the bottom end of the fixed cylinder (12) passes through and extends into the interior of the rotating cylinder (3).

2. The dust collection device for a fuming furnace according to claim 1, characterized in that: A first sprocket (13) is fixed to the outer side of the rotating shaft (6), a second sprocket (14) is fixed to the outer side of the rotating cylinder (3), a chain (15) is arranged between the second sprocket (14) and the first sprocket (13), a filter screen cover (16) is fixed to the bottom of the fixed cylinder (12), a second brush plate (17) is fixed inside the rotating cylinder (3), and a movable plate (18) is fixed between the second brush plates (17).

3. The dust collection device for a fuming furnace according to claim 1, characterized in that: A first set of balls (19) are evenly arranged on the outer side of the rotating cylinder (3), a chute (22) is formed on the inner side wall of the movable ring (8), a limiting ring (20) is fixed inside the movable ring (8), and a second set of balls (21) are evenly arranged at the bottom of the limiting ring (20).

4. The dust collection device for a fuming furnace according to claim 1, characterized in that: The filter screen cylinder (4) is an inverted trapezoidal filter screen, and a refractory coating is provided on the outer side of the filter screen cylinder (4).

5. The dust collection device for a fuming furnace according to claim 1, characterized in that: A sealing layer is fixed to the top of the movable ring (8), and the sealing layer is slidably connected to the bottom of the isolation plate (2).

6. The fuming furnace dust collection device according to claim 2, wherein: The filter screen cover (16) is a hemispherical mesh cover, and support plates are arranged between the movable plate (18) and the second brush plate (17).

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