Casting smoke dust purification device and use method thereof

Abstract

The invention belongs to the technical field of smoke dust purification, and discloses a casting smoke dust purification device and a using method thereof.The casting smoke dust purification device comprises a device body, the two sides of the device body are fixedly connected with an air inlet pipe and an air outlet pipe correspondingly, an exhaust fan is installed in the air outlet pipe, and a spraying set is arranged in the device body; through cooperative arrangement of the spraying assembly and the slag suction assembly, when casting smoke dust is purified, an exhaust fan, a circulating pump and a water pump are turned on, smoke dust gas generated during casting is discharged into the device body through a gas inlet pipe, and when the circulating pump is started, a water source is pumped through a second water pipe and finally sprayed into the device body from a spray head to make contact with the smoke dust gas in the device body; and when the water pump is started, water above the filter screen is sucked away through the second drainage pipe, most impurities can be sucked away, the cleanliness of the water can be improved, and therefore the purification efficiency of the smoke dust is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of smoke purification, and specifically relates to a casting smoke purification device and a use method thereof. Background Art

[0002] Foundry dust refers to solid particulate matter produced during the casting process. These substances are mainly composed of metal oxides, sand core residues, grease, etc. The emission of casting dust has a significant impact on the environment and human health. Therefore, foundry companies need to take effective measures to deal with the dust;

[0003] The casting fume purification device is a device specially used to treat the fume and harmful gases generated in the casting process. It removes harmful substances in the fume to ensure the cleanliness of the air in the workshop and the health of the workers.

[0004] Currently, water spraying technology is a commonly used method for purifying smoke. However, with the repeated use of spraying water, impurities in the smoke will gradually accumulate in the water, which will weaken the purification effect of the spraying water and further affect the purification efficiency of the smoke. Summary of the invention

[0005] The object of the present invention is to provide a casting fume purification device and a method of using the same to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a casting fume purification device, comprising a device body, an air inlet pipe and an air outlet pipe are fixedly connected to the two sides of the device body, an exhaust fan is installed inside the air outlet pipe, and a spray assembly is arranged inside the device body;

[0007] The spray assembly includes a spray pipe arranged inside the device body, a spray head is fixedly connected to the bottom end of the spray pipe, the spray heads are evenly distributed, a filter screen is arranged below the spray head, a slag suction assembly is arranged above the filter screen, a first water pipe is fixedly connected to one side of the spray pipe, a second water pipe is fixedly connected to the bottom end of the first water pipe, a circulation pump is installed on the outer wall of the first water pipe, and the circulation pump, the first water pipe and the second water pipe are all arranged on the inner wall of the device body;

[0008] The slag suction assembly includes a drain plate arranged above the filter screen, a second drain pipe is fixedly installed on the outer wall of the drain plate, the second drain pipes are evenly arranged in a circular array, a first connecting pipe is fixedly connected to the bottom end of the drain plate, a second connecting pipe is fixedly connected to the bottom end of the first connecting pipe, a water pump is installed at one end of the second connecting pipe away from the first connecting pipe, and a third connecting pipe is installed on the side wall of the water pump.

[0009] As a further technical solution of the present invention, the bottom end of the first water pipe is fixedly connected to a third water pipe.

[0010] As a further technical solution of the present invention, a floating plate is fixedly installed on the top of the drainage board.

[0011] As a further technical solution of the present invention, the first connecting pipe is configured as a corrugated pipe.

[0012] As a further technical solution of the present invention, the outer wall of the second connecting pipe is sleeved with a connecting sleeve, the outer wall of the connecting sleeve is fixedly installed with a filter plate, the end of the filter plate away from the connecting sleeve is fixedly connected with a ring gear, and the ring gear is rotatably installed inside the device body through a rotating assembly.

[0013] As a further technical solution of the present invention, the filter plates are evenly arranged in a ring array, and the filter plates are inclined.

[0014] As a further technical solution of the present invention, the rotating assembly includes a gear installed on one side of the ring gear, the gear is meshingly connected to the ring gear, the inner wall of the gear is fixedly connected to a rotating shaft, the bottom end of the rotating shaft is fixedly installed with a rotating plate, and the rotating plate is arranged inside the third connecting tube.

[0015] As a further technical solution of the present invention, the bottom end of the filter plate is slidably fitted with the inner wall of the device body.

[0016] As a further technical solution of the present invention, a protrusion is fixedly installed inside the top of the filter plate, and the bottom end of the protrusion is fixedly connected to a limiting plate. The limiting plate is slidably installed inside the filter plate, and a spring is arranged between the limiting plate and the filter plate.

[0017] A method for using a casting fume purification device comprises the following steps:

[0018] S1: When purifying the fume from casting, the exhaust fan, circulation pump and water pump are turned on, and the exhaust fan is started to make the main body of the device in a negative pressure state, and the fume gas during casting is discharged into the main body of the device through the air inlet pipe;

[0019] S2: When the water pump is started, water above the filter screen is extracted through the second drainage pipe, and then transmitted through the first connecting pipe and the second connecting pipe, and finally discharged from the third connecting pipe. The water flowing inside the third connecting pipe drives the rotating plate to rotate, and the rotation of the rotating plate drives the rotation of the rotating shaft, and the rotation of the rotating shaft drives the rotation of the gear, and the rotation of the gear drives the rotation of the ring gear, and the rotation of the ring gear drives the rotation of the filter plate, so that the filter plate rotates in the water. When the filter plate rotates under the filter screen, the top of the protrusion contacts the bottom of the filter screen, and the elastic potential energy of the spring causes the protrusion to knock on the bottom of the filter screen, which helps to discharge impurities inside the filter holes of the filter screen;

[0020] S3: When the circulation pump is started, the water filtered by the filter screen and the filter plate is extracted through the second water pipe and transmitted to the spray pipe through the first water pipe, and finally sprayed from the nozzle into the device body, contacting with the smoke gas inside the device body to purify the smoke during casting.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The present invention is arranged in coordination with a spray component and a slag suction component. When purifying the fume from casting, the exhaust fan, the circulation pump and the water pump are turned on. The exhaust fan is started to make the main body of the device in a negative pressure state, and the fume gas during casting is discharged into the main body of the device through the air inlet pipe. When the circulation pump is started, water is drawn from the second water pipe and transmitted to the spray pipe through the first water pipe, and finally sprayed from the nozzle into the main body of the device, contacting the fume gas inside the main body of the device, removing particulate matter in the fume, thereby purifying the fume during casting. When the water pump is started, water above the filter screen is drawn through the second drain pipe, and then transmitted through the first connecting pipe and the second connecting pipe, and finally discharged from the third connecting pipe. Since the drain plate is arranged above the filter screen, the filter screen traps impurities on the surface or above the filter screen when filtering impurities in the water. Most of the impurities can be sucked away by sucking away the water above the filter screen through the second drain pipe, which can improve the cleanliness of the water, thereby ensuring the purification efficiency of the fume.

[0023] 2. The present invention provides a rotating assembly. When water from the top of the water surface is pumped out, the water flowing inside the third connecting pipe drives the rotating plate to rotate. The rotation of the rotating plate drives the rotation of the rotating shaft. The rotation of the rotating shaft drives the rotation of the gear. The rotation of the gear drives the rotation of the ring gear. The rotation of the ring gear drives the rotation of the filter plate, so that the filter plate rotates in the water, thereby further improving the filtering effect on impurities in the water.

[0024] 3. The present invention provides a protrusion. When the filter plate rotates under the filter screen, the top of the protrusion contacts the bottom of the filter screen. The elastic potential energy of the spring causes the protrusion to produce a knocking effect on the bottom of the filter screen, which helps to discharge impurities inside the filter holes of the filter screen. This can not only improve the filtering effect of the filter screen, but also extend the service life of the filter screen and reduce the maintenance frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0027] Figure 3 It is a schematic cross-sectional view of the structure of the main body of the device of the present invention;

[0028] Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement in the middle;

[0029] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0030] Figure 6 It is a schematic diagram of the cross-section structure of the filter screen of the present invention;

[0031] Figure 7 It is a schematic diagram of the cross-section structure of the filter plate of the present invention;

[0032] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point C in the middle.

[0033] In the figure: 1. device body; 2. air inlet pipe; 3. air outlet pipe; 4. exhaust fan; 5. spray pipe; 6. nozzle; 7. circulation pump; 8. first water pipe; 9. second water pipe; 10. third water pipe; 11. filter; 12. drain plate; 13. second drain pipe; 14. first connecting pipe; 15. second connecting pipe; 16. water pump; 17. third connecting pipe; 18. floating plate; 19. connecting sleeve; 20. filter plate; 21. ring gear; 22. gear; 23. rotating shaft; 24. rotating plate; 25. bump; 26. limit plate; 27. spring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figures 1 to 8 As shown, in an embodiment of the present invention, a casting fume purification device comprises a device body 1, an air inlet pipe 2 and an air outlet pipe 3 are fixedly connected to both sides of the device body 1, an exhaust fan 4 is installed inside the air outlet pipe 3, and a spray assembly is arranged inside the device body 1;

[0036] The spray assembly includes a spray pipe 5 arranged inside the device body 1, a nozzle 6 is fixedly connected to the bottom end of the spray pipe 5, the nozzles 6 are evenly distributed, a filter screen 11 is arranged below the nozzle 6, a slag suction assembly is arranged above the filter screen 11, a first water pipe 8 is fixedly connected to one side of the spray pipe 5, a second water pipe 9 is fixedly connected to the bottom end of the first water pipe 8, a circulation pump 7 is installed on the outer wall of the first water pipe 8, and the circulation pump 7, the first water pipe 8 and the second water pipe 9 are all arranged on the inner wall of the device body 1;

[0037] The slag suction assembly includes a drain plate 12 arranged above the filter screen 11, a second drain pipe 13 is fixedly installed on the outer wall of the drain plate 12, the second drain pipes 13 are evenly arranged in a circular array, a first connecting pipe 14 is fixedly connected to the bottom end of the drain plate 12, a second connecting pipe 15 is fixedly connected to the bottom end of the first connecting pipe 14, a water pump 16 is installed at one end of the second connecting pipe 15 away from the first connecting pipe 14, and a third connecting pipe 17 is installed on the side wall of the water pump 16.

[0038] Through the coordinated arrangement of the spray assembly and the slag suction assembly, when purifying the casting smoke, the exhaust fan 4, the circulation pump 7 and the water pump 16 are turned on, and the exhaust fan 4 is started to make the device body 1 in a negative pressure state, and the smoke gas during casting is discharged into the device body 1 through the air inlet pipe 2;

[0039] When the circulation pump 7 is started, water is drawn from the second water pipe 9 and transmitted to the spray pipe 5 through the first water pipe 8, and finally sprayed from the nozzle 6 into the device body 1, contacting with the smoke gas inside the device body 1, removing particulate matter in the smoke, thereby purifying the smoke during casting;

[0040] When the water pump 16 is started, the water above the filter 11 is extracted through the second drain pipe 13, and then transmitted through the first connecting pipe 14 and the second connecting pipe 15 and finally discharged from the third connecting pipe 17. Since the drain plate 12 is arranged above the filter 11, the filter 11 will retain the impurities on the surface or above the filter 11 when filtering impurities in the water. The water above the filter 11 can be sucked away by the second drain pipe 13, and most of the impurities can be sucked away, which can improve the cleanliness of the water, thereby ensuring the purification efficiency of smoke and dust.

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, the bottom end of the first water pipe 8 is fixedly connected to the third water pipe 10 .

[0042] When the water used inside the extraction device body 1 is recycled, it can also be used through the third water pipe 10 to connect to an external water source, to prevent the second drain pipe 13 from draining away the water containing impurities above the filter 11, and the water in the device body 1 gradually decreases to ensure that there is enough water for spraying, thereby ensuring the purification effect of the casting smoke.

[0043] like Figure 3 , Figure 4 and Figure 5 As shown, a floating plate 18 is fixedly mounted on the top of the drain plate 12 .

[0044] The float plate 18 is made to float on the water surface, so that the second drain pipe 13 absorbs the uppermost layer of water in the device body 1. Since the casting smoke contains oil and other light organic matter with low density, it is easy to float on the water surface. The uppermost layer of water on the water surface is sucked away, which can improve the cleanliness of the water and facilitate recycling.

[0045] like Figure 4 and Figure 6 As shown, the first connecting pipe 14 is configured as a bellows.

[0046] Since the spray water is from top to bottom, when the spray water flows to the bottom, it will cause the bottom water surface to float. The first connecting pipe 14 is set as a bellows to make the drain plate 12 float up and down for a distance. Under the buoyancy of the floating plate 18, the drain plate 12 is always located on the water surface, thereby ensuring that the second drain pipe 13 absorbs impurities on the water surface.

[0047] like Figure 6 and Figure 7 As shown, the outer wall of the second connecting tube 15 is sleeved with a connecting sleeve 19, the outer wall of the connecting sleeve 19 is fixedly mounted with a filter plate 20, and the end of the filter plate 20 away from the connecting sleeve 19 is fixedly connected with a ring gear 21, and the ring gear 21 is rotatably mounted inside the device body 1 through a rotating assembly.

[0048] The spray water is filtered again through the filter plate 20 to further improve the cleanliness of the water.

[0049] like Figure 6 and Figure 7 As shown, the filter plates 20 are evenly arranged in a circular array, and the filter plates 20 are inclined.

[0050] This helps water to fully contact the filter plate 20 for filtration.

[0051] like Figure 5 , Figure 6 and Figure 7 As shown, the rotating assembly includes a gear 22 installed on one side of the ring gear 21, the gear 22 is meshed with the ring gear 21, the inner wall of the gear 22 is fixedly connected with a rotating shaft 23, the bottom end of the rotating shaft 23 is fixedly installed with a rotating plate 24, and the rotating plate 24 is arranged inside the third connecting tube 17.

[0052] Through the setting of the rotating component, when the water on the top of the water surface is pumped out, the water flowing inside the third connecting pipe 17 drives the rotating plate 24 to rotate, the rotation of the rotating plate 24 drives the rotation of the rotating shaft 23, the rotation of the rotating shaft 23 drives the rotation of the gear 22, the rotation of the gear 22 drives the rotation of the ring gear 21, and the rotation of the ring gear 21 drives the rotation of the filter plate 20, so that the filter plate 20 rotates in the water, further improving the filtering effect of impurities in the water.

[0053] The inner diameter of the ring gear 21 is ten N times the inner diameter of the gear 22, and N is a positive integer;

[0054] When the ring gear 21 is driven to rotate by the gear 22, the gear 22 rotates ten N circles and the ring gear 21 rotates one circle, so that the gear 22 rotates slowly in the water, so that the impurities in the water have more time to contact the filter 11, thereby increasing the chance of impurities being captured and improving the purity of the water quality.

[0055] like Figure 4 and Figure 5 As shown, the bottom end of the filter plate 20 is slidably fitted with the inner wall of the device body 1 .

[0056] like Figure 8 As shown, a protrusion 25 is fixedly installed inside the top of the filter plate 20, and a limit plate 26 is fixedly connected to the bottom end of the protrusion 25. The limit plate 26 is slidably installed inside the filter plate 20, and a spring 27 is provided between the limit plate 26 and the filter plate 20.

[0057] When the filter plate 20 rotates under the filter screen 11, the top of the protrusion 25 contacts the bottom of the filter screen 11, and the elastic potential energy of the spring 27 causes the protrusion 25 to produce a knocking effect on the bottom of the filter screen 11, which helps to discharge impurities inside the filter holes of the filter screen 11, which can not only improve the filtering effect of the filter screen 11 but also extend the service life of the filter screen 11 and reduce the maintenance frequency.

[0058] A method for using a casting fume purification device comprises the following steps:

[0059] S1: When purifying the casting smoke, the exhaust fan 4, the circulation pump 7 and the water pump 16 are turned on, and the exhaust fan 4 is started to make the device body 1 in a negative pressure state, and the smoke gas during casting is discharged into the device body 1 through the air inlet pipe 2;

[0060] S2: When the water pump 16 is started, the water above the filter screen 11 is extracted through the second drainage pipe 13, and then transmitted through the first connecting pipe 14 and the second connecting pipe 15, and finally discharged from the third connecting pipe 17. The water flowing inside the third connecting pipe 17 drives the rotating plate 24 to rotate, and the rotation of the rotating plate 24 drives the rotation of the rotating shaft 23. The rotation of the rotating shaft 23 drives the rotation of the gear 22. The rotation of the gear 22 drives the rotation of the ring gear 21. The rotation of the ring gear 21 drives the rotation of the filter plate 20, so that the filter plate 20 rotates in the water. When the filter plate 20 rotates below the filter screen 11, the top of the protrusion 25 contacts the bottom end of the filter screen 11, and the elastic potential energy of the spring 27 causes the protrusion 25 to knock on the bottom end of the filter screen 11, which helps to discharge impurities inside the filter holes of the filter screen 11;

[0061] S3: When the circulation pump 7 is started, the water filtered by the filter screen 11 and the filter plate 20 is extracted through the second water pipe 9 and transmitted to the spray pipe 5 through the first water pipe 8, and finally sprayed from the nozzle 6 into the device body 1, and contacts with the smoke gas inside the device body 1 to purify the smoke during casting.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A casting fume purification device, comprising a device body (1), characterized in that: An air inlet pipe (2) and an air outlet pipe (3) are fixedly connected to both sides of the device body (1), an exhaust fan (4) is installed inside the air outlet pipe (3), and a spray assembly is arranged inside the device body (1); The spray assembly comprises a spray pipe (5) arranged inside the device body (1), the bottom end of the spray pipe (5) is fixedly connected to a spray head (6), the spray heads (6) are evenly distributed, a filter screen (11) is arranged below the spray head (6), a slag suction assembly is arranged above the filter screen (11), one side of the spray pipe (5) is fixedly connected to a first water pipe (8), the bottom end of the first water pipe (8) is fixedly connected to a second water pipe (9), a circulation pump (7) is installed on the outer wall of the first water pipe (8), and the circulation pump (7), the first water pipe (8) and the second water pipe (9) are all arranged on the inner wall of the device body (1); The slag suction assembly comprises a drainage plate (12) arranged above the filter screen (11); a second drainage pipe (13) is fixedly mounted on the outer wall of the drainage plate (12); the second drainage pipes (13) are evenly arranged in a circular array; a first connecting pipe (14) is fixedly connected to the bottom end of the drainage plate (12); a second connecting pipe (15) is fixedly connected to the bottom end of the first connecting pipe (14); a water pump (16) is mounted at one end of the second connecting pipe (15) away from the first connecting pipe (14); and a third connecting pipe (17) is mounted on the side wall of the water pump (16).

2. The casting fume purification device according to claim 1, characterized in that: The bottom end of the first water pipe (8) is fixedly connected to a third water pipe (10).

3. The casting fume purification device according to claim 1, characterized in that: A floating plate (18) is fixedly mounted on the top of the drainage plate (12).

4. The casting fume purification device according to claim 1, characterized in that: The first connecting pipe (14) is configured as a corrugated pipe.

5. The casting fume purification device according to claim 1, characterized in that: The outer wall of the second connecting tube (15) is sleeved with a connecting sleeve (19), a filter plate (20) is fixedly mounted on the outer wall of the connecting sleeve (19), an end of the filter plate (20) away from the connecting sleeve (19) is fixedly connected with a ring gear (21), and the ring gear (21) is rotatably mounted inside the device body (1) via a rotating assembly.

6. The casting fume purification device according to claim 5, characterized in that: The filter plates (20) are evenly arranged in a circular array, and the filter plates (20) are inclined.

7. The casting fume purification device according to claim 5, characterized in that: The rotating assembly comprises a gear (22) mounted on one side of the ring gear (21), the gear (22) being meshedly connected with the ring gear (21), a rotating shaft (23) being fixedly connected to the inner wall of the gear (22), a rotating plate (24) being fixedly mounted at the bottom end of the rotating shaft (23), and the rotating plate (24) being arranged inside the third connecting pipe (17).

8. The casting fume purification device according to claim 5, characterized in that: The bottom end of the filter plate (20) is slidably fitted to the inner wall of the device body (1).

9. The casting fume purification device according to claim 5, characterized in that: A protrusion (25) is fixedly mounted inside the top end of the filter plate (20), and a limit plate (26) is fixedly connected to the bottom end of the protrusion (25). The limit plate (26) is slidably mounted inside the filter plate (20), and a spring (27) is provided between the limit plate (26) and the filter plate (20).

10. A method for using a casting fume purification device, the method being applicable to the casting fume purification device according to claims 1 to 9, characterized in that: The following steps are involved: S1: When purifying casting smoke, the exhaust fan (4), the circulation pump (7) and the water pump (16) are turned on, and the exhaust fan (4) is started to make the inside of the device body (1) in a negative pressure state, and the smoke gas during casting is discharged into the device body (1) through the air inlet pipe (2); S2: When the water pump (16) is started, water above the filter screen (11) is extracted through the second drainage pipe (13), and then transmitted through the first connecting pipe (14) and the second connecting pipe (15) and finally discharged from the third connecting pipe (17). The water flows inside the third connecting pipe (17) to drive the rotating plate (24) to rotate. The rotation of the rotating plate (24) drives the rotation of the rotating shaft (23). The rotation of the rotating shaft (23) drives the rotation of the gear (22). The rotation of the gear (22) drives the rotation of the ring gear (21). The rotation of the ring gear (21) drives the rotation of the filter plate (20), so that the filter plate (20) rotates in the water. When the filter plate (20) rotates below the filter screen (11), the top end of the protrusion (25) contacts the bottom end of the filter screen (11). The elastic potential energy of the spring (27) causes the protrusion (25) to knock on the bottom end of the filter screen (11), which helps to discharge impurities inside the filter holes of the filter screen (11). S3: When the circulation pump (7) is started, water filtered by the filter screen (11) and the filter plate (20) is drawn through the second water pipe (9), transmitted to the spray pipe (5) through the first water pipe (8), and finally sprayed from the nozzle (6) into the device body (1), where it contacts the smoke and dust gas inside the device body (1) to purify the smoke and dust during casting.

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