Efficient flue gas absorption device for lead alloy smelting furnace

Abstract

The utility model relates to the technical field of flue gas treatment, and discloses an efficient flue gas absorption device for a lead alloy smelting furnace, which comprises a shell, an exhaust fan is arranged on the left side in the shell, and the output end and the input end of the exhaust fan are respectively and fixedly connected with a connecting pipe. According to the efficient flue gas absorption device for the lead alloy smelting furnace, the servo motor and the connecting sleeve are arranged, and the flue gas cover is arranged at the top end of the smelting furnace, so that all-directional absorption of flue gas is conveniently achieved, and the servo motor drives the driving gear to rotate through the connecting shaft; the driving gear can drive the driven gear to rotate to enable the smoke suction pipe in the driven gear to drive the smoke hood to rotate, so that the smoke hood can be conveniently rotated to open the top end of the smelting furnace, materials can be conveniently put when the smoke hood is rotated open, matching with a stirring device can be achieved, and the problem that the smoke hood is inconvenient to rotate to other places according to needs and cannot be conveniently stirred is solved. And a smoke hood is easy to shield a feeding hole to influence material feeding.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flue gas treatment, specifically to a high -efficient flue gas absorption device for lead alloy smelting furnace. BACKGROUND

[0002] The main purpose of lead alloy smelting furnace is to melt, mix lead alloy raw materials, adjust its chemical composition, remove impurities, and reuse waste materials. Lead alloy smelting furnace melts and melts lead alloy raw materials to achieve the required chemical composition and physical state. When using lead alloy smelting furnace to smelt lead alloy, gas and smoke dust will be generated, so a high -efficient flue gas absorption device for lead alloy smelting furnace is needed to absorb the flue gas and smoke dust generated during smelting.

[0003] After searching, according to the application number CN201620917084.X, a kind of smelting furnace smoke gas overflow prevention device is disclosed, which increases the content of smoke dust cover, prolongs the residence time of smoke gas, and reduces the smoke overflow phenomenon, but it is not convenient to automatically rotate smoke cover to other places according to demand during use, and smoke cover is easy to block feeding port and affect material feeding.

[0004] Therefore, we propose a high -efficient flue gas absorption device for lead alloy smelting furnace to improve the above problems. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of high -efficient flue gas absorption device for lead alloy smelting furnace, to solve the problem that it is not convenient to automatically rotate smoke cover to other places according to demand in the above background art, and smoke cover is easy to block feeding port and affect material feeding.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a kind of high -efficient flue gas absorption device for lead alloy smelting furnace, including shell, the left side in the shell interior is equipped with suction fan, the output end and input end of the suction fan are fixedly connected with connecting pipe respectively, the top of the connecting pipe is provided with smoke suction pipe, the outside of the connecting pipe and smoke suction pipe connection is provided with connecting sleeve, the bottom of the right side of the smoke suction pipe is fixedly connected with smoke cover, the left side of the top in the shell interior is equipped with servo motor, the output end of the servo motor is fixedly connected with connecting shaft, the top of the connecting shaft is fixedly connected with driving gear, the bottom of the outside of the smoke suction pipe is equipped with driven gear, the top of the driven gear is provided with filter shell, the top of the filter shell is fixedly connected with smoke mouth, the smoke mouth is installed in the outside of smoke suction pipe.

[0007] Preferably, the driving gear is arranged on the left side of the driven gear, and the driving gear and the driven gear are respectively provided with tooth blocks on the outer parts thereof, and the driving gear and the driven gear are in meshing connection.

[0008] Preferably, the left side of the connecting tube extends through the bottom left side of the housing, the filter shell is fixedly connected to the bottom of the smoking tube, and the bottom of the smoking tube rotates inside the connecting sleeve.

[0009] Preferably, a support plate is fixedly connected to the right side of the filter shell, a support frame is provided on the outside of the support plate, an mounting plate is fixedly connected to the bottom of the support frame, the support plate rotates on the left side inside the support frame, and mounting grooves are provided at the front and rear ends of both sides inside the mounting plate, and bolts are provided inside the mounting grooves.

[0010] Preferably, a fixing plate is provided at the bottom end of the driven gear, the fixing plate is fixedly connected to the bottom end of the outside of the smoking tube, and support rods are fixedly connected to both sides and the front and rear ends of the bottom end of the fixing plate, a limit slider is fixedly connected to the bottom end of the support rod, a ball is provided inside the limit slider near the outside, and a limit groove is fixedly connected to the right side of the top of the housing.

[0011] Preferably, the limiting slider is disposed inside the limiting groove, the limiting slider rotates inside the limiting groove, and the ball rolls inside the limiting slider.

[0012] Preferably, a fixed frame is fixedly connected inside the filter shell, and an installation bracket is provided inside the fixed frame. A filter screen is provided at the top of the installation bracket, and an activated carbon filter plate is provided at the bottom of the installation bracket. A sealing plate is fixedly connected to the left side of the installation bracket, and a hinge shaft is fixedly connected to the upper and lower left sides of the filter shell. A limit block is movably hinged to the outside of the hinge shaft.

[0013] Preferably, the mounting bracket is disposed inside the filter housing, the fixing frame is fixedly connected between the smoke tubes, and the limiting block is disposed at the upper and lower ends on the left side of the sealing plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the high-efficiency flue gas absorption device for lead alloy smelting furnace not only prevents interference with material feeding and improves the stability of the device, but also facilitates flue gas filtration.

[0015] Equipped with a servo motor, connecting shaft, drive gear, driven gear, and connecting sleeve, the flue hood is positioned at the top of the smelting furnace, facilitating comprehensive absorption of flue gas and effectively reducing flue gas dispersion. When the flue hood needs to be rotated to open the top of the smelting furnace, the servo motor is activated. The servo motor drives the drive gear to rotate via the connecting shaft, which in turn drives the driven gear to rotate. This causes the smoke extraction pipe inside the driven gear to rotate the flue hood, making it easier for the flue hood to open the top of the smelting furnace. The opening of the flue hood facilitates material feeding and allows for coordination with the stirring device.

[0016] The system includes a support plate, support frame, mounting groove, bolts, fixing plate, support rod, limiting slide groove, and limiting slider. The mounting plate is fixed in a suitable position by the mounting groove and bolts. When the smoke tube rotates, the support plate on one side of the filter shell will rotate inside the support frame, thereby supporting and limiting the smoke tube through the support plate and filter shell. The bottom end of the fixing plate is provided with a support rod, and the limiting slider at the bottom end of the support rod will rotate inside the limiting slide groove. This not only limits the smoke tube but also supports the fixing plate outside the smoke tube.

[0017] Equipped with a sealing plate, limiting block, hinge shaft, filter screen, activated carbon filter plate, and mounting bracket, the adsorbed flue gas is discharged through the inside of the smoke extraction pipe and connecting pipe. When the flue gas passes through the filter screen and activated carbon filter plate, the filter screen can filter impurities in the flue gas, preventing the flue gas from being directly discharged and affecting the environment. The activated carbon filter plate can not only filter impurities but also adsorb harmful substances in the flue gas. When the filter screen and activated carbon filter plate need to be processed, rotate the limiting block to make the sealing plate unfixed. When the sealing plate is unfixed, it can be pulled to pull the filter screen and activated carbon filter plate inside the mounting bracket out from the inside of the filter shell, thus facilitating the processing of the filter screen and activated carbon filter plate. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a top view enlarged cross-sectional schematic diagram of the drive gear of this utility model;

[0020] Figure 3 This is an enlarged cross-sectional view of the filter housing of this utility model.

[0021] Figure 4 This is a top view enlarged cross-sectional schematic diagram of the mounting plate of this utility model;

[0022] Figure 5 For the present utility model Figure 1 Enlarged cross-sectional view of point A in the middle.

[0023] In the diagram: 1. Housing; 2. Exhaust fan; 3. Connecting pipe; 4. Servo motor; 5. Connecting shaft; 6. Drive gear; 7. Driven gear; 8. Filter housing; 9. Smoke pipe; 10. Smoke hood; 11. Support plate; 12. Support frame; 13. Mounting groove; 14. Mounting plate; 15. Bolt; 16. Fixing plate; 17. Connecting sleeve; 18. Sealing plate; 19. Limiting block; 20. Hinge shaft; 21. Fixing frame; 22. Filter screen; 23. Activated carbon filter plate; 24. Mounting bracket; 25. Support rod; 26. Limiting groove; 27. Limiting slider; 28. Ball bearing. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-5 This utility model provides an embodiment of a high-efficiency flue gas absorption device for a lead alloy smelting furnace, comprising a housing 1, an exhaust fan 2 installed on the left side inside the housing 1, a connecting pipe 3 fixedly connected to the output end and the input end of the exhaust fan 2 respectively, a smoke extraction pipe 9 provided at the top end of the connecting pipe 3, a connecting sleeve 17 provided outside the connection between the connecting pipe 3 and the smoke extraction pipe 9, a flue gas hood 10 fixedly connected to the bottom right end of the smoke extraction pipe 9, a servo motor 4 installed on the left side of the top end inside the housing 1, a connecting shaft 5 fixedly connected to the output end of the servo motor 4, a drive gear 6 fixedly connected to the top end of the connecting shaft 5, a driven gear 7 installed at the bottom outside the smoke extraction pipe 9, a filter shell 8 provided at the top end of the driven gear 7, a smoke extraction nozzle fixedly connected to the top end of the filter shell 8, and the smoke extraction nozzle installed outside the smoke extraction pipe 9;

[0026] The drive gear 6 is located on the left side of the driven gear 7. The drive gear 6 and the driven gear 7 are respectively machined with tooth blocks on their exteriors. The drive gear 6 and the driven gear 7 are meshed. The left side of the connecting pipe 3 passes through the bottom left side of the housing 1. The filter shell 8 is fixedly connected to the bottom of the smoking pipe 9. The bottom of the smoking pipe 9 rotates inside the connecting sleeve 17.

[0027] Specifically, such as Figure 1 and Figure 2 As shown, the flue gas hood 10 is installed at the top of the smelting furnace, which facilitates the all-round absorption of flue gas and effectively reduces flue gas dispersion. When the flue gas hood 10 needs to be rotated to open the top of the smelting furnace, the servo motor 4 is activated. The servo motor 4 drives the drive gear 6 to rotate through the connecting shaft 5. The drive gear 6 can drive the driven gear 7 to rotate, which causes the smoke pipe 9 inside the driven gear 7 to drive the flue gas hood 10 to rotate, thus facilitating the rotation of the flue gas hood 10 to open the top of the smelting furnace. The rotation of the flue gas hood 10 facilitates the feeding of materials and can be coordinated with the stirring device.

[0028] A support plate 11 is fixedly connected to the right side of the filter housing 8. A support frame 12 is provided on the outside of the support plate 11. A mounting plate 14 is fixedly connected to the bottom of the support frame 12. The support plate 11 rotates on the left side inside the support frame 12. Mounting grooves 13 are provided at the front and rear ends of both sides inside the mounting plate 14. Bolts 15 are provided inside the mounting grooves 13. A fixing plate 16 is provided at the bottom of the driven gear 7. The fixing plate 16 is fixedly connected to the bottom of the outside of the smoke tube 9. Support rods 25 are fixedly connected to both sides and the front and rear ends of the bottom of the fixing plate 16. A limit slider 27 is fixedly connected to the bottom of the support rod 25. A ball bearing 28 is provided on the side of the limit slider 27 near the outside. A limit groove 26 is fixedly connected to the right side of the top of the housing 1. The limit slider 27 is located inside the limit groove 26. The limit slider 27 rotates inside the limit groove 26, and the ball bearing 28 rolls inside the limit slider 27.

[0029] Specifically, such as Figure 1 , Figure 4 and Figure 5 As shown, the mounting plate 14 is installed and fixed in a suitable position by the mounting groove 13 and bolts 15. When the smoke tube 9 rotates, the support plate 11 on one side of the filter shell 8 will rotate inside the support frame 12, so that the smoke tube 9 can be supported and limited by the support plate 11 and the filter shell 8. The bottom end of the fixing plate 16 is provided with a support rod 25. The limiting slider 27 at the bottom end of the support rod 25 will rotate inside the limiting groove 26, which can not only limit the smoke tube 9, but also support the fixing plate 16 outside the smoke tube 9.

[0030] A fixed frame 21 is fixedly connected inside the filter housing 8. A mounting bracket 24 is set inside the fixed frame 21. A filter screen 22 is set at the top inside the mounting bracket 24. An activated carbon filter plate 23 is set at the bottom inside the mounting bracket 24. A sealing plate 18 is fixedly connected to the left side of the mounting bracket 24. A hinge shaft 20 is fixedly connected to the upper and lower left sides of the filter housing 8. A limit block 19 is movably hinged to the outside of the hinge shaft 20. The mounting bracket 24 is set inside the filter housing 8. The fixed frame 21 is fixedly connected between the smoke tubes 9. The limit block 19 is set at the upper and lower ends of the left side of the sealing plate 18.

[0031] Specifically, such as Figure 1 and Figure 3As shown, the adsorbed flue gas will be discharged through the inside of the smoke pipe 9 and the connecting pipe 3. When the flue gas passes through the filter screen 22 and the activated carbon filter plate 23, the filter screen 22 can filter the impurities in the flue gas to prevent the flue gas from being directly discharged and affecting the environment. The activated carbon filter plate 23 can not only filter impurities but also adsorb harmful substances in the flue gas. When the filter screen 22 and the activated carbon filter plate 23 need to be processed, rotate the limiting block 19 to make the sealing plate 18 lose its fixation. When the sealing plate 18 loses its fixation, the sealing plate 18 can be pulled to pull the filter screen 22 and the activated carbon filter plate 23 inside the mounting frame 24 out of the filter shell 8, thereby facilitating the processing of the filter screen 22 and the activated carbon filter plate 23.

[0032] Working Principle: In use, the mounting plate 14 is fixed in a suitable position via the mounting groove 13 and bolts 15. The fume hood 10 is positioned at the top of the smelting furnace. When the exhaust fan 2 is started, it draws in flue gas through the smoke pipe 9 and the fume hood 10, effectively reducing flue gas dispersion. Since the smoke nozzle is located outside the smoke pipe 9, it is positioned at the upper edge of the furnace opening in a semi-circular shape, maximizing the range and capacity of flue gas extraction, further reducing dispersion. When the flue gas passes through the filter screen 22 and activated carbon filter plate 23, the filter screen 22 filters impurities, preventing direct discharge and environmental impact. The activated carbon filter plate 23 not only filters impurities but also adsorbs harmful substances in the flue gas. When the filter screen 22 and activated carbon filter plate 23 need to be processed, the limiting block 19 is rotated to loosen the sealing plate 18. Once the sealing plate 18 is loosened, it can be pulled. 8. The filter screen 22 and activated carbon filter plate 23 inside the mounting frame 24 are pulled out from the inside of the filter shell 8, so as to facilitate the processing of the filter screen 22 and activated carbon filter plate 23. When the top of the smelting furnace needs to be turned off the flue hood 10, the servo motor 4 is started. The servo motor 4 drives the drive gear 6 to rotate through the connecting shaft 5. The drive gear 6 can drive the driven gear 7 to rotate, so that the driven gear 7 drives the flue hood 10 to rotate, so as to facilitate the rotation of the top of the smelting furnace. The rotation of the flue hood 10 facilitates the feeding of materials and can be coordinated with the stirring device. When the smoke pipe 9 rotates, the support plate 11 on one side of the filter shell 8 will rotate inside the support frame 12, so that the smoke pipe 9 can be supported and limited by the support plate 11 and the filter shell 8. The limiting slider 27 at the bottom of the support rod 25 will rotate inside the limiting groove 26, which can not only limit the smoke pipe 9, but also support the fixing plate 16 outside the smoke pipe 9.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high efficiency fume absorption device for lead alloy melting furnaces, comprising a casing (1), characterized in that: The left side of the inside of the shell (1) is provided with an exhaust fan (2), and the output end and the input end of the exhaust fan (2) are fixedly connected with a connecting pipe (3), the top end of the connecting pipe (3) is provided with a smoke pipe (9), the outside of the connecting pipe (3) and the smoke pipe (9) is provided with a connecting sleeve (17), the bottom end of the right side of the smoke pipe (9) is fixedly connected with a smoke cover (10), the top end of the inside of the shell (1) is provided with a servo motor (4), the output end of the servo motor (4) is fixedly connected with a connecting shaft (5), the top end of the connecting shaft (5) is fixedly connected with a drive gear (6), the bottom end of the outside of the smoke pipe (9) is provided with a driven gear (7), the top end of the driven gear (7) is provided with a filter shell (8), and the top end of the filter shell (8) is fixedly connected with a smoke mouth, and the smoke mouth is installed outside the smoke pipe (9).

2. A high efficiency fume absorption device for a lead alloy melting furnace as claimed in claim 1, wherein: The drive gear (6) is arranged on the left side of the driven gear (7), and the drive gear (6) and the driven gear (7) are respectively provided with a tooth block on the outside, and the drive gear (6) and the driven gear (7) are engaged.

3. A high efficiency fume absorption device for a lead alloy melting furnace as claimed in claim 1, wherein: The left side of the connecting pipe (3) penetrates the bottom end of the inside of the shell (1), the filter shell (8) is fixedly connected between the bottom end of the smoke pipe (9), and the bottom end of the smoke pipe (9) rotates in the inside of the connecting sleeve (17).

4. A high efficiency fume absorption device for a lead alloy melting furnace as claimed in claim 1, wherein: The right side of the filter shell (8) is fixedly connected with a support plate (11), the outside of the support plate (11) is provided with a support frame (12), the bottom end of the support frame (12) is fixedly connected with a mounting plate (14), the support plate (11) rotates on the left side of the inside of the support frame (12), and the mounting plate (14) is provided with a mounting groove (13) on the front and rear ends of the two sides.

5. A high efficiency fume absorption device for a lead alloy melting furnace as claimed in claim 1, wherein: The bottom end of the driven gear (7) is provided with a fixed plate (16), the fixed plate (16) is fixedly connected to the bottom end of the outside of the smoke pipe (9), the two sides and the front and rear ends of the bottom end of the fixed plate (16) are fixedly connected with support rods (25), the bottom end of the support rod (25) is fixedly connected with a limiting sliding block (27), the inside of the limiting sliding block (27) is provided with a ball (28) close to the outside, and the right side of the top end of the shell (1) is fixedly connected with a limiting sliding groove (26).

6. A high efficiency fume absorption device for a lead alloy melting furnace as claimed in claim 5, wherein: The limiting sliding block (27) is arranged in the inside of the limiting sliding groove (26), and rotates in the inside of the limiting sliding groove (26). The ball (28) rolls in the inside of the limiting sliding block (27).

7. A high efficiency fume absorption device for a lead alloy melting furnace as claimed in claim 1, wherein: The inside of the filter shell (8) is fixedly connected with a fixed frame (21), the inside of the fixed frame (21) is provided with a mounting rack (24), the top of the inside of the mounting rack (24) is provided with a filter screen (22), the bottom of the inside of the mounting rack (24) is provided with an activated carbon filter plate (23), the left side of the mounting rack (24) is fixedly connected with a sealing plate (18), the left side of the filter shell (8) is fixedly connected with a hinged shaft (20) upwards and downwards, and the outside of the hinged shaft (20) is movably connected with a limiting block (19).

8. A high efficiency fume absorption device for a lead alloy melting furnace as claimed in claim 7, wherein: The mounting rack (24) is arranged in the inside of the filter shell (8), the fixed frame (21) is fixedly connected between the smoking pipes (9), and the limiting block (19) is arranged at the upper end and the lower end of the left side of the sealing plate (18).

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