CN219441104U - Workshop skylight spraying system for aluminum electrolysis unorganized emission of flue gas - Google Patents

Abstract

The utility model provides a workshop skylight spraying system for the unorganized emission of smoke of electrolytic aluminum, and belongs to the technical field of electrolytic aluminum smoke treatment. It has solved the problem that current electrolytic aluminum can cause air pollution. This skylight protrusion sets up on the ceiling in workshop, the skylight is by middle orientation both sides slope downward sloping setting, spray system is including linking firmly the smoke guide plate and the shower nozzle of a plurality of interval on the smoke guide plate in the skylight both sides, enclose into the flue gas passageway that crosses that supplies the interior flue gas of workshop to pass through between skylight, ceiling and the smoke guide plate, the outlet flue of crossing the flue is located the top at skylight lateral part border, the shower nozzle is located the top of outlet flue and sets up towards the skylight, the deflector that a plurality of interval set up has been linked firmly in the outlet flue of crossing the flue, the deflector sets up along the both sides slope in the middle of the skylight orientation, the border department of skylight both sides has all linked firmly the liquid return groove. The spraying system has the advantage that the spraying liquid can better absorb pollutants in the flue gas.

Description

Workshop skylight spraying system for aluminum electrolysis unorganized emission of flue gas

Technical Field

The utility model belongs to the technical field of electrolytic aluminum flue gas treatment, and relates to a workshop skylight spraying system for the smoke discharged by an electrolytic aluminum inorganization mode.

Background

Electrolytic aluminum is aluminum obtained by electrolysis. In the modern electrolytic aluminum industrial production, cryolite-alumina molten salt electrolysis method is adopted, molten cryolite is solvent, alumina is used as solute, carbon body is used as anode, aluminum liquid is used as cathode, strong direct current is introduced, and electrochemical reaction is carried out on two poles in an electrolytic tank at 950-970 ℃, namely electrolysis.

In the electrolytic process, fluoride in the electrolyte reacts with raw materials and moisture in the air to generate HF, and reacts with carbon and sulfur to generate gaseous pollutants such as CF4, C2F6, SO2 and the like, and the pollutants are emitted from an electrolytic tank and are mixed with fluoride dust to form electrolytic flue gas during production operation. Most of gaseous and solid fluorides in the electrolysis flue gas are collected by the gas collecting hood of the electrolysis tank and enter the flue gas purification system for treatment, but part of the flue gas is emitted from the gaps of the upper structure of the electrolysis tank, and is discharged to the atmosphere through the skylight of the electrolysis workshop in an unorganized manner, so that environmental pollution is caused to a certain extent.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides a workshop skylight spraying system for the smoke discharged by electrolytic aluminum in an unorganized way, which solves the technical problem of better absorbing pollutants in the smoke by spraying liquid.

The aim of the utility model can be achieved by the following technical scheme: workshop skylight spraying system to aluminum electrolysis unorganized emission flue gas, skylight protrusion sets up on the ceiling of workshop, the skylight is by middle orientation both sides slope setting down, its characterized in that, spraying system is including linking firmly the smoke guide plate and the shower nozzle of a plurality of interval on the smoke guide plate in the skylight both sides, enclose into the flue gas passageway that crosses that passes through in the workshop between skylight, ceiling and the smoke guide plate, the outlet flue of crossing the flue is located the top at skylight lateral border, the shower nozzle is located the top of outlet flue and sets up towards the skylight, the deflector that has linked firmly a plurality of interval setting in the outlet flue of crossing the flue, the deflector sets up along the both sides slope down in the middle of the skylight orientation, the border department of skylight both sides all has linked firmly the liquid return groove.

When aluminum is electrolyzed, part of smoke enters a workshop, the part of smoke rises to enter a smoke passage and is discharged from a smoke outlet, a spray head sprays spray liquid towards the top of a skylight, and the spray liquid flows to a liquid return groove along the skylight after being sprayed to the top of the skylight. The smoke guide plate and the guide plate play a role in guiding smoke, so that the smoke is sprayed downwards along the inclined direction of the guide plate towards the top of the skylight, pollutants in part of the smoke are directly mixed with spray liquid flowing at the top of the skylight, the smoke is rebounded after touching the top of the skylight, the sprung smoke and the air smoke are mixed with vaporific spray liquid, the spray liquid absorbs the pollutants in the smoke, then falls on the top of the skylight under the action of gravity and flows to a liquid return groove along the skylight, the liquid return groove collects the mixture of the smoke and the spray liquid, and the mixture is conveyed to a purification structure for purification. This spraying system changes the flow direction of flue gas through setting up smoke guide plate and deflector, changes the velocity of flow of flue gas simultaneously, makes the flue gas can be more abundant with spray the liquid phase mixture, makes spray pollutants such as HF, SO2, particulate matter in the liquid can fully absorb the flue gas, reduces environmental pollution.

In the workshop skylight spraying system for the aluminum electrolysis unorganized emission flue gas, the guide plates are in strip plate shapes, all the guide plates are arranged at equal intervals from top to bottom in parallel, and the top of the guide plates opposite to the smoke guide plates are arranged in a retracted mode towards the smoke passage. The structure can enable the smoke to be sprayed to the skylight in a layered manner, and the smoke above the structure can scatter the smoke rebounded from the lower part again, SO that the smoke discharge speed is reduced, the spraying liquid can be fully mixed with pollutants such as HF, SO2, particulate matters and the like in the smoke, and the environmental pollution is reduced; the top of the guide plate relative to the smoke guide plate is arranged in a retracted mode towards the smoke channel, so that the smoke guide plate plays a role in protecting the guide plate, the guide plate is not easy to be sprayed by rainwater, and the service life is prolonged.

In the workshop skylight spraying system for the aluminum electrolysis unorganized emission smoke, the guide plate part is positioned right above the side edge of the skylight. The structure ensures that the flue gas can be sprayed to the top of the skylight after being guided by the guide plate, so that pollutants in the flue gas and spray liquid can be better mixed; simultaneously, outside rainwater is not easy to enter a workshop through the skylight.

In the workshop skylight spraying system for the aluminum electrolysis and the smoke is discharged in an unstructured mode, the liquid return groove is partially located under the side edge of the skylight, the groove wall on one side of the liquid return groove is located under the side edge of the skylight, the groove wall on the other side of the liquid return groove is located above the side edge of the skylight in the vertical direction, and a notch of the liquid return groove is formed between the groove wall on the other side of the liquid return groove and the side edge of the skylight. The space is reasonably utilized, so that the liquid return tank can better recycle the mixture of pollutants and spray liquid in the flue gas.

In the workshop skylight spraying system for the aluminum electrolysis unorganized emission flue gas, an air inlet is formed between the lower part of the smoke guide plate and a workshop ceiling, a baffle is fixedly connected to the joint of the skylight and the workshop ceiling, and the top end of the baffle is located above the bottom end of the smoke guide plate along the vertical direction. The baffle plays a role in guiding air, and is matched with the smoke guide plate, so that the outside air enters the smoke passing channel through the air inlet and flows in a set direction, the exhaust speed of smoke in a workshop is accelerated, the pollutant in the smoke can be better absorbed by the spray liquid, and the air quality in the workshop is improved.

In the workshop skylight spraying system for the aluminum electrolysis unorganized emission of the smoke, the smoke outlet of the smoke passing channel is provided with the supporting plate, the top of the supporting plate is fixedly connected with the smoke guide plate, the bottom of the supporting plate is fixedly connected with the skylight, and the guide plate is fixedly connected with the supporting plate. The supporting plate plays a role of installing a carrier, and plays a role of enhancing strength.

In the workshop skylight spraying system for the aluminum electrolysis unorganized emission flue gas, the included angle between the guide plate and the vertical direction is 60-80 degrees. The angle enables the guide plate to be matched with the skylight better, and enables the spray liquid to absorb pollutants in the flue gas better.

In the workshop skylight spraying system for the aluminum electrolysis unorganized emission flue gas, the cross section of the upper part of the smoke guide plate is arc-shaped, the upper part of the smoke guide plate is inwards bent towards the skylight, the cross section of the lower part of the smoke guide plate is strip-shaped, and the lower part of the smoke guide plate is inwards and downwards inclined towards the skylight. The smoke guide plate has the advantages that the smoke channel can better guide the flow of smoke, and the smoke can be discharged from a workshop more quickly.

In the workshop skylight spraying system for the aluminum electrolysis unorganized emission flue gas, the outer side wall of the smoke guide plate is provided with a plurality of reinforcing ribs, and all the reinforcing ribs are arranged at equal intervals and in parallel. The reinforcing ribs play a role in reinforcing, so that the strength of the smoke guide plate is improved.

In the workshop skylight spraying system for the aluminum electrolysis unorganized emission flue gas, the spraying system further comprises a liquid storage tank and a self-priming pump which are all arranged on the workshop floor, a water tank and a high-pressure spraying pump which are all arranged at a high position, a water inlet pipe, an overflow pipe and a water spraying pipe, wherein the water inlet of the self-priming pump is connected with the liquid storage tank, the water outlet of the self-priming pump is connected with the water tank through the water inlet pipe, the top of the water tank is connected with the liquid storage tank through the overflow pipe, the water inlet of the high-pressure spraying pump is connected with the water tank, the water outlet of the high-pressure spraying pump is connected with the water spraying pipe, the spray heads are arranged on the water spraying pipe at equal intervals, and on-off valves are arranged at the spray heads.

Compared with the prior art, the workshop skylight spraying system for the aluminum electrolysis unorganized emission smoke has the following advantages:

1. the spraying system is matched with the guide plate through the smoke guide plate, SO that the flow direction and the flow speed of the smoke are changed, the smoke can be fully mixed with the spraying liquid, the spraying liquid can better absorb pollutants such as HF, SO2, particulate matters and the like in the smoke, and the environmental pollution is reduced.

2. The air inlet is arranged between the lower part of the smoke guide plate of the spraying system and the workshop ceiling, the baffle is matched with the smoke guide plate, so that the outside air enters the smoke passage through the air inlet, the discharge speed of smoke in the workshop is accelerated, the pollutant in the smoke can be better absorbed by the spraying liquid, and the air quality in the workshop is improved.

Drawings

Fig. 1 is a schematic view of the structure of the spray system at the skylight.

Fig. 2 is a schematic diagram of the structure of the smoke passage of the spraying system.

Fig. 3 is a schematic diagram of the structure of the liquid return tank of the spraying system.

Fig. 4 is a schematic diagram of the structure of the flow of the spray liquid of the spray system.

In the figure, 1, a skylight; 2. a ceiling; 3. a smoke guide plate; 4. a spray head; 5. a smoke passage; 51. a smoke outlet; 6. a guide plate; 7. a liquid return tank; 71. a notch; 8. an air inlet; 9. a baffle; 10. a support plate; 11. reinforcing ribs; 12. a liquid storage tank; 13. a self priming pump; 14. a water tank; 15. a high pressure spray pump; 16. a water inlet pipe; 17. an overflow pipe; 18. a water spray pipe; 19. and an on-off valve.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 and 4, the skylight 1 is arranged on a roof 2 of a workshop in a protruding manner, the skylight 1 is obliquely and downwards arranged from the middle towards two sides, and the workshop skylight 1 spraying system for the aluminum electrolysis inorganically discharging smoke comprises a smoke guide plate 3, a spray head 4, a guide plate 6, a baffle plate 9, a support plate 10, a liquid storage tank 12, a self-priming pump 13, a water tank 14, a high-pressure spraying pump 15, a water inlet pipe 16, an overflow pipe 17, a spray pipe 18 and an on-off valve 19.

As shown in fig. 2, the smoke guide plates 3 are fixedly connected to two sides of the skylight 1, the upper cross section of the smoke guide plates 3 is arc-shaped, the upper parts of the smoke guide plates 3 are inwards bent towards the skylight 1, the lower cross section of the smoke guide plates 3 is strip-shaped, the lower parts of the smoke guide plates 3 are inwards inclined downwards towards the skylight 1, an air inlet 8 is formed between the lower parts of the smoke guide plates 3 and the workshop ceiling 2, a baffle 9 is fixedly connected to the joint of the skylight 1 and the workshop ceiling 2, and the top ends of the baffle 9 are located above the bottom ends of the smoke guide plates 3 along the vertical direction. In this embodiment, twenty-five reinforcing ribs 11 are provided on the outer sidewall of the smoke guide plate 3, all the reinforcing ribs 11 are equally spaced and arranged in parallel, and in actual production, the number of the reinforcing ribs 11 may be twenty or thirty.

Enclose into the flue gas that supplies in the workshop between skylight 1, ceiling 2 and the smoke guide plate 3 and cross cigarette passageway 5, cross the outlet flue 51 of cigarette passageway 5 and be located the skylight 1 lateral part border directly over, the outlet flue 51 department of cigarette passageway 5 is equipped with backup pad 10, the top of backup pad 10 links firmly with smoke guide plate 3, the bottom links firmly with skylight 1, deflector 6 links firmly on backup pad 10, deflector 6 is rectangular platy, all deflector 6 equidistant and parallel arrangement from the top down, deflector 6 is relative the top of smoke guide plate 3 towards the indentation setting of cigarette passageway 5, deflector 6 is located the skylight 1 lateral part border directly over, deflector 6 is along the both sides of skylight 1 towards middle slope setting down. In this embodiment, the number of the guide plates 6 is four, the included angle between the guide plates 6 and the vertical direction is 72 °, in actual production, the number of the guide plates 6 may be three or five, and the included angle between the guide plates 6 and the vertical direction may be 60 ° or 80 °.

As shown in fig. 3, the edges on both sides of the skylight 1 are fixedly connected with a liquid return groove 7, the liquid return groove 7 is partially positioned under the side edges of the skylight 1, the groove wall on one side of the liquid return groove 7 is positioned under the side edges of the skylight 1, the groove wall on the other side is positioned above the side edges of the skylight 1 along the vertical direction, and a notch 71 of the liquid return groove 7 is formed between the groove wall on the other side of the liquid return groove 7 and the side edges of the skylight 1.

The liquid storage tank 12 and the self priming pump 13 are all installed on the workshop floor, the tank and the high-pressure spray pump 15 are all installed in the eminence, the water inlet of the self priming pump 13 is connected with the liquid storage tank 12, the water outlet of the self priming pump 13 is connected with the water tank 14 through the water inlet pipe 16, the top of the water tank 14 is connected with the liquid storage tank 12 through the overflow pipe 17, the water inlet of the high-pressure spray pump 15 is connected with the water tank 14, the water outlet of the high-pressure spray pump 15 is connected with the spray pipe 18, the spray heads 4 are installed on the spray pipe 18 at equal intervals, and each spray head 4 is provided with an on-off valve 19. In this embodiment, the number of the spray heads 4 is twenty, and in actual production, the number of the spray heads 4 may be sixteen or thirty, and the spray heads 4 are located at the top of the smoke outlet 51 and are disposed toward the sunroof 1.

When aluminum is electrolyzed, part of flue gas can enter a workshop, the flue gas rises and enters the flue gas passing channel 5 and is discharged from a flue gas outlet 51 of the flue gas passing channel 5, a spray liquid is sprayed from a spray head 4 towards the top of the skylight 1, the spray liquid is mixed with the flue gas, the spray liquid absorbs pollutants such as HF, SO2 and particulate matters in the flue gas, then the mixture flows to a liquid return groove 7 along the top of the skylight 1, the liquid return groove 7 collects the mixture of the flue gas and the spray liquid, and the mixture is conveyed to a purifying structure for purification.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although the terms of the sunroof 1, the ceiling 2, the smoke guide plate 3, the shower head 4, the smoke passage 5, the smoke outlet 51, the guide plate 6, the liquid return groove 7, the notch 71, the air inlet 8, the baffle 9, the support plate 10, the reinforcing ribs 11, the liquid storage tank 12, the self-sucking pump 13, the water tank 14, the high-pressure spray pump 15, the water inlet pipe 16, the overflow pipe 17, the spray pipe 18, the on-off valve 19 are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims (10)

1. Workshop skylight spraying system to aluminum electrolysis unorganized emission flue gas, skylight (1) protrusion sets up on the ceiling (2) of workshop, skylight (1) are by middle orientation both sides slope setting down, its characterized in that, spraying system is including linking firmly smoke guide plate (3) and the shower nozzle (4) of a plurality of interval setting on smoke guide plate (3) in skylight (1) both sides, enclose into between skylight (1), ceiling (2) and smoke guide plate (3) and pass cigarette passageway (5) that the flue gas in the workshop passed through, the exit flue (51) of crossing cigarette passageway (5) are located the roof (1) lateral part border directly over, shower nozzle (4) are located the top of exit flue (51) and set up towards skylight (1), guide plate (6) that have linked firmly a plurality of interval setting in exit flue (51) of crossing cigarette passageway (5), guide plate (6) set up towards middle slope down along the both sides of skylight (1), the roof (1) both sides department has linked firmly back liquid groove (7).

2. Workshop skylight spray system for the unstructured emission of flue gas from electrolytic aluminium according to claim 1, characterized in that the guide plates (6) are strip-shaped, all the guide plates (6) are equally spaced from top to bottom and arranged in parallel, and the guide plates (6) are set back towards the flue gas passage (5) relative to the top of the smoke guide plate (3).

3. Workshop roof spray system for the unstructured emission of fumes from electrolytic aluminium according to claim 1, wherein the deflector (6) is partly located directly above the side edges of the roof (1).

4. A shop roof spray system for the unorganized emission of fumes from electrolytic aluminium according to claim 1 or 2 or 3, characterised in that the liquid return tank (7) is partly located directly below the side edges of the roof (1), the tank wall on one side of the liquid return tank (7) is located below the side edges of the roof (1), the tank wall on the other side is located vertically above the side edges of the roof (1), and a slot (71) of the liquid return tank (7) is formed between the tank wall on the other side of the liquid return tank (7) and the side edges of the roof (1).

5. A workshop skylight spraying system for the aluminum electrolysis unorganized emission of flue gas according to claim 1, 2 or 3, characterized in that an air inlet (8) is formed between the lower part of the smoke guide plate (3) and a workshop ceiling (2), a baffle plate (9) is fixedly connected to the joint of the skylight (1) and the workshop ceiling (2), and the top end of the baffle plate (9) is located above the bottom end of the smoke guide plate (3) along the vertical direction.

6. A workshop skylight spray system for the unorganized emission of flue gas of electrolytic aluminum according to claim 1, 2 or 3, characterized in that the flue outlet (51) of the flue passage (5) is provided with a support plate (10), the top of the support plate (10) is fixedly connected with the smoke guide plate (3), the bottom is fixedly connected with the skylight (1), and the guide plate (6) is fixedly connected with the support plate (10).

7. A shop roof spray system for the unorganized emission of fumes from electrolytic aluminium according to claim 1 or 2 or 3, characterised in that the angle between the guide plate (6) and the vertical is between 60 ° -80 °.

8. A shop roof spray system for the unorganized emission of fumes from electrolytic aluminium according to claim 1 or 2 or 3, characterised in that the upper cross section of the fume guide plate (3) is arc-shaped, the upper part of the fume guide plate (3) is curved inwards towards the roof (1), the lower cross section of the fume guide plate (3) is elongated, the lower part of the fume guide plate (3) is inclined inwards downwards towards the roof (1).

9. A workshop skylight spray system for the unstructured emission of flue gas from electrolytic aluminium according to claim 1 or 2 or 3, wherein the outer side wall of the smoke guide plate (3) is provided with a plurality of reinforcing ribs (11), and all the reinforcing ribs (11) are equally spaced and arranged in parallel.

10. A shop roof spray system for the non-organised emission of fumes towards aluminium electrolysis according to claim 1 or 2 or 3, characterised in that the spray system further comprises a liquid reservoir (12) and a self priming pump (13) both mounted on the shop floor, a water tank (14) and a high pressure spray pump (15) both mounted at a high level, and a water inlet pipe (16), an overflow pipe (17) and a spray pipe (18), the water inlet of the self priming pump (13) is connected to the liquid reservoir (12), the water outlet of the self priming pump (13) is connected to the water tank (14) through the water inlet pipe (16), the top of the water tank (14) is connected to the liquid reservoir (12) through the overflow pipe (17), the water inlet of the high pressure spray pump (15) is connected to the water tank (14), the water outlet of the high pressure spray pump (15) is connected to the spray pipe (18), the spray heads (4) are mounted on the spray pipe (18) at equal intervals, and each spray head (4) is provided with an on-off valve (19).