CN218853952U

CN218853952U - Air exhaust purification equipment for coating machine

Info

Publication number: CN218853952U
Application number: CN202320019074.4U
Authority: CN
Inventors: 杜炜
Original assignee: Shenzhen Jinmaineng Technology Co ltd
Current assignee: Shenzhen Jinmaineng Technology Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-04-14
Anticipated expiration: 2033-01-04

Abstract

The utility model discloses an exhaust purification device for a coating machine, which belongs to the field of exhaust purification devices, and comprises a purification tower, wherein two side walls of the purification tower and the positions close to the bottom end of the purification tower are respectively embedded and connected with an air guide pipe, the output end of each air guide pipe is provided with an air feeder, the bottom end of each air feeder is provided with a frame, the middle part of an inner cavity of the purification tower is provided with a first grid plate, and a foam remover is arranged above the first grid plate; the purifying column inner chamber is provided with the multiunit tower tray to every group tower tray top surface all is provided with the bubble cap, and the purifying column inner chamber just is located the bottom and is provided with the spray rack, and the spray rack runs through the purifying column lateral wall, and wherein two sets of tower trays are located demister top and bottom both sides, and it can realize, can carry out purification treatment to waste gas, reaches emission standard, can retrieve the NMP in the waste gas again, makes things convenient for NMP to retrieve and recycles.

Description

Air exhaust purification equipment for coating machine

Technical Field

The utility model relates to a clarification plant field of airing exhaust, more specifically say, relate to a clarification plant of airing exhaust for coating machine.

Background

With the development of industry, global air pollution is becoming more serious, the management of exhaust emission is more strict in each country, and more exhaust treatment equipment is available in the market, which recovers, removes and reduces harmful components in exhaust gas by using different process technologies such as heating, condensation, spraying and washing, and the like, so as to achieve the purposes of protecting environment and purifying air.

However, when the existing exhaust air purification device is used, NMP in exhaust gas discharged by a coating machine cannot be completely filtered and recovered, so that environmental pollution is increased, and the NMP cannot be recovered and reused, so that an exhaust air purification device for the coating machine is provided to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide an exhaust clarification plant for coating machine can carry out purification treatment to waste gas, reaches emission standard, can retrieve the NMP in the waste gas again, makes things convenient for NMP to retrieve and recycles.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

An exhaust purification device for a coating machine comprises a purification tower, wherein air guide pipes are connected to the positions, close to the bottom end, of two side walls of the purification tower in an embedded mode, an air feeder is arranged at the output end of each air guide pipe, a rack is arranged at the bottom end of each air feeder, a first grid plate is arranged in the middle of an inner cavity of the purification tower, and a foam remover is arranged above the first grid plate;

the inner cavity of the purification tower is provided with a plurality of groups of tower trays, the top surface of each group of tower trays is provided with a bubble cap, the inner cavity of the purification tower, which is positioned at the bottom end, is provided with a spray frame, and the spray frame penetrates through the side wall of the purification tower.

Further wherein two sets of trays are located on either side of the top and bottom of the demister.

Furthermore, the output end of the spraying frame is connected with a filtering component in series, and the filtering component is used for filtering water entering the spraying frame.

Furthermore, the filtering assembly comprises a filtering pipe, a filtering sponge is arranged in the inner cavity of the filtering pipe and at the input end, non-woven filter cotton is arranged above the filtering sponge, and the filtering sponge is used for being matched with the non-woven filter cotton to filter water flowing through;

the bottom end of the filtering sponge is positioned at the output end of the filtering pipe, and an arc-shaped groove is formed in the position, where the bottom end of the filtering sponge is positioned, of the output end of the filtering pipe and is used for enlarging the filtering area of the filtering sponge.

Further, the filter assembly further comprises a metal mesh plate arranged on the top surface of the non-woven filter cotton.

Furthermore, a magnetic turning plate liquid level meter is arranged at the bottom of one side wall of the purification tower and used for monitoring the storage capacity of water at the bottom of the inner cavity of the purification tower.

Furthermore, a second grid plate is arranged in the inner cavity of the purification tower and below the spray frame.

Further, the outer wall of the purification tower is provided with a plurality of groups of manholes, and one end of each group of manholes is provided with a cover plate.

Further, the manhole position that just is located the eminence on the purifying column all is provided with overhauls the frame, purifying column outer wall surface is provided with the climbing frame, the climbing frame outside is provided with prevents weighing down the cover.

Furthermore, a rain shield is arranged at the top end of the purification tower.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) When waste gas discharged by the coating machine needs to be treated, the waste gas discharged by the feeding mechanism can be pumped to an inner cavity of the purification tower through the air guide pipe by the air feeder on the rack, and then water can be sprayed in the rising waste gas by the spraying frame;

through the multiunit tower tray, installation multiunit bubble cap that can be steady, then because its structural style of bubble cap has circular and bar two types usually, and open at the periphery of bubble cap has the slot, the air current that rises from the gas-lift pipe changes the direction when passing through the bubble cap, and disperse into tiny bubble through the slot and get into the liquid layer, with gas-liquid contact closely, increase the fluid turbulence, thereby strengthen the gas-liquid mass transfer, and then can make things convenient for the gas-liquid to upwards transmit, then can be when evaporation operation through the demister, prevent to lose useful product or pollute the condensate liquid, and then can reduce the liquid foam of smuggleing in the gas-liquid secretly.

(2) This scheme, through the filter tube among the filtering component, can concatenate the end of intaking that sprays the frame, then filter the sponge, the non-woven filter pulp, can carry out dual filtration to the water of flowing through and handle, and then can prevent that the impurity of aquatic from blockking up the play water end that sprays the frame, because the arc wall is seted up in filtering the sponge bottom, thereby can enlarge and filter sponge filter area, through metal mesh plate, can play nonwoven filter pulp and filter sponge limiting displacement, can filter the water of flowing through once more again.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the overall cross-sectional structure of the present invention;

fig. 4 is a schematic sectional view of the filter assembly of the present invention.

The numbering in the figures illustrates:

1. a purification tower; 2. an air guide pipe; 3. a blower; 4. a frame; 5. a first grid plate; 6. a demister; 7. a tray; 8. bubble cap; 9. a spray rack; 10. a filter assembly; 1001. a filter tube; 1002. filtering the sponge; 1003. non-woven filter cotton; 1004. a metal mesh plate; 1005. an arc-shaped slot; 11. a magnetic flap level gauge; 12. a second grid plate; 13. a manhole; 14. a cover plate; 15. a maintenance frame; 16. a climbing frame; 17. an anti-falling cover; 18. a rain shield.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

Example (b):

referring to fig. 1-3, an exhaust purification device for a coating machine comprises a purification tower 1, wherein air guide pipes 2 are embedded and connected on two side walls of the purification tower 1 and close to the bottom end of the purification tower 1, an air feeder 3 is arranged at the output end of each air guide pipe 2, a rack 4 is arranged at the bottom end of each air feeder 3, a first grid plate 5 is arranged in the middle of an inner cavity of the purification tower 1, and a foam remover 6 is arranged above the first grid plate 5;

a plurality of groups of tower trays 7 are arranged in the inner cavity of the purification tower 1, a bubble cap 8 is arranged on the top surface of each group of tower trays 7, a spray rack 9 is arranged in the inner cavity of the purification tower 1 and positioned at the bottom end, and the spray rack 9 penetrates through the side wall of the purification tower 1;

when waste gas discharged by the coating machine needs to be treated, the waste gas discharged from the feeding mechanism can be pumped to the inner cavity of the purification tower 1 through the air guide pipe 2 by the air feeder 3 on the rack 4, and then water can be sprayed in the rising waste gas through the spraying rack 9, because the NMP is a polar aprotic solvent, the NMP is high in boiling point, strong in polarity, low in viscosity, strong in dissolving capacity, free of corrosion, low in toxicity, strong in biodegradation capacity, low in volatility, stable in chemistry and thermal stability, the NMP can be dissolved in the spraying water, and then substances such as the NMP dissolved in the waste gas and the like in the water can be eliminated, so that workers can recycle the NMP substances dissolved in the water;

through multiunit tower tray 7, installation multiunit bubble cap 8 that can be steady, then because its structural style of bubble cap 8 has two types of circular and bar usually, and open at bubble cap 8's periphery has the crack, the air current that rises from the riser changes the direction when passing through the bubble cap, and disperse into tiny bubble through the crack and get into the liquid layer, with osculating the gas-liquid contact, increase fluid turbulence, thereby strengthen the gas-liquid mass transfer, and then can make things convenient for the gas-liquid to upwards transmit, then can be when evaporation operation through demister 6, prevent to lose useful product or pollute the condensate liquid, and then can reduce the liquid foam in the smuggleing the gas-liquid secretly.

Referring to fig. 3, two sets of trays 7 are positioned on both the top and bottom sides of the demister 6, and the gas and liquid passing through the demister 6 can be transferred to the demister 6.

Referring to fig. 2, a filter assembly 10 is connected in series to an output end of the spray rack 9, and the filter assembly 10 is used for filtering water entering the spray rack 9.

Referring to fig. 2 and 4, the filtering assembly 10 includes a filtering pipe 1001, a filtering sponge 1002 is disposed in an inner cavity of the filtering pipe 1001 and at an input end, a non-woven filtering cotton 1003 is disposed above the filtering sponge 1002, and the filtering sponge 1002 is used for cooperating with the non-woven filtering cotton 1003 to filter water flowing through;

an arc-shaped groove 1005 is formed in the bottom end of the filtering sponge 1002 and located at the output end of the filtering pipe 1001, and the arc-shaped groove 1005 is used for enlarging the filtering area of the filtering sponge 1002;

through the filter tube 1001 among the filtering component 10, can concatenate the end of intaking that sprays frame 9, can install filtering sponge 1002, non-woven filter pulp 1003 again, then through filtering sponge 1002, non-woven filter pulp 1003, can carry out dual filtration to the water of flowing through and handle, and then can prevent that the impurity of aquatic from blockking up the play water end that sprays frame 9, because the arc wall 1005 is seted up in filtering sponge 1002 bottom to can enlarge filtering sponge 1002 filter area.

Referring to fig. 4, the filter assembly 10 further includes a metal mesh plate 1004 disposed on the top surface of the non-woven filter cotton 1003, which can limit the non-woven filter cotton 1003 and the filter sponge 1002 and can filter the water flowing through again.

Referring to fig. 2, a magnetic turning plate liquid level meter 11 is arranged at the bottom of one side wall of the purification tower 1, and can be used for monitoring the storage amount of water at the bottom of the inner cavity of the purification tower 1, so that the worker can discharge the water for dissolving the NMP in time.

Referring to fig. 3, a second grid plate 12 is disposed in the inner cavity of the purification tower 1 and below the spray frame 9, so as to prevent foreign matters with large particle size from entering the water storage position at the bottom of the inner cavity of the purification tower 1.

Referring to fig. 1 and 2, the outer wall of the purification tower 1 is provided with a plurality of groups of manholes 13, one end of each group of manholes 13 is provided with a cover plate 14, the manholes 13 facilitate the maintenance of the inside of the purification tower 1 by workers, the cover plates 14 can seal the manholes 13, and the workers can be prevented from entering the purification tower by mistake.

Referring to fig. 1 and 2, the manhole 13 position on the purifying tower 1 and located at the high position is provided with the maintenance frame 15, the outer wall surface of the purifying tower 1 is provided with the climbing frame 16, the outside of the climbing frame 16 is provided with the anti-falling cover 17, the worker can conveniently reach the manhole 13 with a high height through the maintenance frame 15 and the climbing frame 16, and then the safety of the worker in climbing the climbing frame 16 can be improved through the anti-falling cover 17.

Referring to fig. 1, a rain shield 18 is disposed at the top end of the purification tower 1 to prevent rainwater from flowing back into the purification tower 1 from the top end of the purification tower 1.

When in use: when waste gas discharged by the coating machine needs to be treated, the waste gas discharged from the feeding mechanism can be pumped to the inner cavity of the purification tower 1 through the air guide pipe 2 by the air feeder 3 on the frame 4, and then water can be sprayed in the rising waste gas through the spray rack 9, because NMP is a polar aprotic solvent, the NMP is high in boiling point, strong in polarity, low in viscosity, strong in dissolving capacity, free of corrosion, low in toxicity, strong in biodegradation capacity, low in volatility, and stable in chemistry and heat, and can be dissolved in spray water, so that substances such as NMP and the like dissolved in water in the waste gas can be eliminated, and workers can recycle the NMP substances dissolved in water;

through a plurality of groups of tower trays 7, a plurality of groups of bubble caps 8 can be stably installed, and then as the structure forms of the bubble caps 8 are generally circular and strip-shaped, and tooth gaps are formed at the peripheries of the bubble caps 8, the direction of air flow rising from the gas riser is changed when passing through the bubble caps, and the air flow is dispersed into fine bubbles through the tooth gaps to enter a liquid layer so as to be closely contacted with gas and liquid and increase the turbulence of the fluid, so that the gas-liquid mass transfer is strengthened, further the gas-liquid upward transfer can be facilitated, then, the loss of useful products or the pollution of condensed liquid can be prevented through the demister 6 during the evaporation operation, and further, the entrainment of liquid foam in the gas and liquid can be reduced;

through the filter pipe 1001 in the filter assembly 10, the filter assembly can be connected in series with the water inlet end of the spray frame 9, and can also be used for installing the filter sponge 1002 and the non-woven filter cotton 1003, then through the filter sponge 1002 and the non-woven filter cotton 1003, the flowing water can be subjected to double filtration treatment, so that impurities in the water can be prevented from blocking the water outlet end of the spray frame 9, the arc-shaped groove 1005 is formed in the bottom end of the filter sponge 1002, so that the filtering area of the filter sponge 1002 can be enlarged, and through the metal mesh plate 1004, the limiting effect on the non-woven filter cotton 1003 and the filter sponge 1002 can be achieved, and the flowing water can be filtered again;

through magnetism board level gauge 11 that turns over, can be used to monitor the storage capacity of 1 inner chamber bottom water of purifying column, make things convenient for the timely log raft that will dissolve NMP of staff to discharge, through manhole 13, can make things convenient for the staff to overhaul purifying column 1 inside, and apron 14, can seal up manhole 13 again, prevent that personnel from missing to go into, through overhauing frame 15 and climbing frame 16, can make things convenient for the staff to reach the manhole 13 department that exceeds, then through preventing weighing down cover 17, can improve the safety when staff climbs climbing frame 16, through rain cover 18, can prevent that the rainwater from pouring backward to purifying column 1 in from purifying column 1 top.

The above is only a preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the protection scope of the present invention by replacing or changing the technical solution and the modified concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a clarification plant airs exhaust for coating machine, includes purifying column (1), purifying column (1) both sides wall just is close to the bottom position and all inlays and be connected with guide duct (2), every group guide duct (2) output all is provided with forced draught blower (3), every group forced draught blower (3) bottom all is provided with frame (4), its characterized in that: a first grid plate (5) is arranged in the middle of the inner cavity of the purification tower (1), and a demister (6) is arranged above the first grid plate (5);

the inner cavity of the purification tower (1) is provided with a plurality of groups of tower trays (7), the top surface of each group of tower trays (7) is provided with a bubble cap (8), the inner cavity of the purification tower (1) is provided with a spray rack (9) at the bottom end, the spray rack (9) penetrates through the side wall of the purification tower (1), and the spray rack (9) is used for spraying and dissolving NMP in the exhaust waste gas of the coating machine.

2. An exhaust air purifying apparatus for a coater according to claim 1, wherein: wherein two groups of trays (7) are positioned at the top and the bottom of the demister (6).

3. An exhaust air purifying apparatus for a coating machine according to claim 1, characterized in that: the output end of the spray rack (9) is connected with a filtering component (10) in series, and the filtering component (10) is used for filtering water entering the spray rack (9).

4. An exhaust air purifying apparatus for a coating machine according to claim 3, characterized in that: the filter assembly (10) comprises a filter pipe (1001), a filter sponge (1002) is arranged in the cavity of the filter pipe (1001) and at the position of an input end, non-woven filter cotton (1003) is arranged above the filter sponge (1002), and the filter sponge (1002) is used for being matched with the non-woven filter cotton (1003) to filter water flowing through;

the bottom end of the filtering sponge (1002) is positioned at the output end of the filtering pipe (1001) and provided with an arc-shaped groove (1005), and the arc-shaped groove (1005) is used for enlarging the filtering area of the filtering sponge (1002).

5. An exhaust air purifying apparatus for a coater according to claim 4, wherein: the filter assembly (10) further comprises a metal mesh plate (1004) arranged on the top surface of the non-woven filter cotton (1003).

6. An exhaust air purifying apparatus for a coating machine according to claim 1, characterized in that: the device is characterized in that a magnetic turning plate liquid level meter (11) is arranged at the bottom of one side wall of the purification tower (1), and the magnetic turning plate liquid level meter (11) is used for monitoring the storage capacity of water at the bottom of an inner cavity of the purification tower (1).

7. An exhaust air purifying apparatus for a coating machine according to claim 1, characterized in that: and a second grid plate (12) is arranged in the inner cavity of the purification tower (1) and below the spray frame (9).

8. An exhaust air purifying apparatus for a coater according to claim 1, wherein: the outer wall of the purification tower (1) is provided with a plurality of groups of manholes (13), and one end of each group of manholes (13) is provided with a cover plate (14).

9. An exhaust air purifying apparatus for a coating machine according to claim 8, characterized in that: manhole (13) position that just is located the eminence on purifying column (1) all is provided with overhauls frame (15), purifying column (1) outer wall surface is provided with climbing frame (16), climbing frame (16) outside is provided with prevents weighing down cover (17).

10. An exhaust air purifying apparatus for a coater according to claim 1, wherein: the top end of the purification tower (1) is provided with a rain shield (18).