Oil curtain spraying room

Abstract

The present application relates to a kind of oil curtain spray room, it includes paint spray booth, oil-gas separation chamber and circulating fan unit, the oil-gas separation chamber is set in the paint spray booth below, the upper portion of the paint spray booth is provided with first air inlet, the bottom of the paint spray booth is provided with first air outlet, the top of the oil-gas separation chamber is provided with second air inlet, the lower portion of the oil-gas separation chamber is provided with return air inlet, the first air outlet is connected with second air inlet, the outlet of the circulating fan unit and first air inlet are connected by air guide pipe, and the return air inlet is connected with the air inlet of the circulating fan unit by return air pipe.The present application is a kind of oil curtain spray room, which uses oil instead of circulating water, with low noise and long service life, and can solve many problems that water washing type spray booth cannot solve, such as working environment, environmental pollution, quality and other problems.

Description

TECHNICAL FIELD

[0001] The present application relates to an oil curtain spraying room, belonging to the technical field of spraying equipment. BACKGROUND

[0002] The paint spraying room is a room for spraying paint on objects. The paint spraying room is a device for providing a special environment for painting work, which can meet the requirements of painting work on temperature, humidity, illumination, air cleanliness, etc., can limit and treat the paint mist and organic waste gas generated during the spraying work before discharging, and is an environmentally friendly painting device.

[0003] The currently widely used paint spraying rooms mainly include dry paint spraying rooms and wet paint spraying rooms: the dry paint spraying room generally uses a filter screen and low-quality filter material to filter paint mist, which needs to be checked and replaced regularly, otherwise it may cause fire or affect the quality of baking paint. With the further development of science and technology, the way to handle excess paint mist is becoming more and more advanced. Many high-end cars use water treatment paint spraying rooms to dissolve excess paint mist in water, which has made great progress in the way of treating paint mist.

[0004] Most of the current paint spraying rooms are water washing type spraying rooms, the main reason is that the water washing type spraying room has high equipment efficiency, generally up to 95%-98%; has low risk of fire; and has high safety. However, the water washing type spraying room has the following disadvantages:

[0005] 1. A large amount of waste water is generated during use, polluting the environment;

[0006] 2. A large amount of chemical agents need to be added to realize the chemical separation of the waste paint residue adsorbed in water and the circulating water, and a paint residue separation device is needed to realize the physical separation of the circulating water and the waste paint residue, which has a large amount of work and a very foul environment, greatly polluting the environment;

[0007] 3. The water washing type spraying room is prone to rust, and the circulating water needs to be replaced every six years, at which time a large amount of polluting waste water will be generated, which needs to be treated to meet environmental protection requirements before being discharged. SUMMARY

[0008] The technical problem to be solved by the present application is to provide an oil curtain spraying room which uses oil instead of circulating water, has low noise, long service life, and can solve many problems that cannot be solved by water washing type spraying rooms, such as working environment, environmental pollution, quality, etc.

[0009] The technical scheme adopted by the present application to solve the above problems is: an oil curtain spraying room, comprising a paint spraying chamber, an oil-gas separation chamber and a circulating fan unit, the oil-gas separation chamber is arranged below the paint spraying chamber, the upper part of the paint spraying chamber is provided with a first air inlet, the bottom of the paint spraying chamber is provided with a first air outlet, the top of the oil-gas separation chamber is provided with a second air inlet, the lower part of the oil-gas separation chamber is provided with a return air outlet, the first air outlet and the second air inlet are connected in communication, the outlet of the circulating fan unit and the first air inlet are connected through an air guide pipe, and the return air outlet is connected with the air inlet of the circulating fan unit through a return air pipe.

[0010] Optionally, the paint spraying chamber is sequentially provided with a dynamic pressure layer, a static pressure layer and a paint spraying layer from top to bottom, and the first air inlet is connected with the dynamic pressure layer.

[0011] Optionally, the return air outlet has two, and the two return air outlets are arranged on the left and right sides of the oil-gas separation chamber, and the left and right return air outlets are connected with the air inlet of the circulating fan unit through return air pipes.

[0012] Optionally, the outlet of the circulating fan unit is also connected with the RTO through an exhaust pipe.

[0013] Optionally, the oil-gas separation chamber comprises a separation box body, two upper baffles are symmetrically arranged on the top of the separation box body, the second air inlet is located between the two upper baffles, an upper support plate is arranged outside the upper baffles and extends outward, an upper oil overflow groove is arranged on the upper support plate, a lower support plate is arranged below the second air inlet, a left oil curtain plate and a right oil curtain plate are respectively arranged between the lower support plate and the two upper baffles, the left oil curtain plate and the right oil curtain plate are symmetrically arranged, two lower oil overflow grooves are arranged below the lower support plate, the lower support plate extends to above the two lower oil overflow grooves on the left and right sides, an intermediate passage is formed between the two lower oil overflow grooves, and an oil storage groove is arranged below the intermediate passage.

[0014] Optionally, the left oil curtain plate and the right oil curtain plate are the same in structure and each comprise an oil curtain plate body, a plurality of ventilation holes are vertically formed on the oil curtain plate body, and the ventilation holes are arranged at intervals front and back.

[0015] Optionally, the size of the ventilation hole gradually increases from top to bottom.

[0016] Optionally, air deflectors are symmetrically arranged on the front and back sides of the ventilation hole, and the air deflectors are located outside the oil curtain plate body.

[0017] Optionally, the oil curtain spraying room further comprises a first oil tank and a second oil tank, the left and right two overflow oil grooves and the oil storage groove are connected with the first oil tank through a first pipeline, the first oil tank and the second oil tank are connected through a second pipeline, a centrifuge is arranged on the second pipeline, and the second oil tank is connected with the left and right two overflow oil grooves through a third pipeline.

[0018] Optionally, the second oil tank is connected with a liquid separator through a fourth pipeline.

[0019] Compared with the prior art, the oil curtain spraying room has the advantages that:

[0020] 1. The oil curtain spraying room uses oil instead of circulating water, has low noise, long service life, and can solve many problems that cannot be solved by water washing type spraying rooms, such as working environment, environmental pollution, quality and the like.

[0021] 2. The oil curtain spraying room has a dust removal rate of 95% or more, thereby improving the finished product rate of the sprayed product.

[0022] 3. The oil curtain spraying room can absorb excess paint slag, so that the paint slag is not splashed out, thereby ensuring a clean working environment. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Fig. 1 is a structural schematic view of the oil curtain spraying room of the present application.

[0024] Figure 2 Fig. 2 is a perspective view of the oil gas separation chamber. Figure 1

[0025] Figure 3 Fig. 3 is a front view of the oil gas separation chamber. Figure 2

[0026] Figure 4 Fig. 4 is an A-A sectional view of the oil gas separation chamber. Figure 3

[0027] Figure 5 Fig. 5 is a B part enlarged view of the oil gas separation chamber. Figure 3

[0028] Figure 6 Fig. 6 is a C part enlarged view of the oil gas separation chamber. Figure 3

[0029] Figure 7 Fig. 7 is a structural schematic view of the left oil curtain plate or the right oil curtain. Figure 3

[0030] Figure 8 Fig. 8 is a side view of the left oil curtain plate or the right oil curtain. Figure 7

[0031] Figure 9 Fig. 9 is a D-D sectional view of the left oil curtain plate or the right oil curtain. Figure 7 ​​​​​​​​

[0032] Figure 10 For Figure 9 Enlarged view of E part of FIG. 1.

[0033] Wherein:

[0034] Paint spraying chamber 1

[0035] Oil-gas separation chamber 2

[0036] Separation box 2.1

[0037] Upper baffle 2.2

[0038] Upper support plate 2.3

[0039] Upper oil overflow groove 2.4

[0040] Lower support plate 2.5

[0041] Left oil curtain plate 2.6

[0042] Oil curtain plate body 2.6.1

[0043] Vent hole 2.6.2

[0044] Air deflector 2.6.3

[0045] Right oil curtain plate 2.7

[0046] Lower oil overflow groove 2.8

[0047] Middle passage 2.9

[0048] Oil storage groove 2.10

[0049] Outer baffle 2.11

[0050] Inner baffle 2.12

[0051] Connecting plate 2.13

[0052] Bottom groove 2.14

[0053] Baffle mounting frame 2.15

[0054] Bottom plate 2.15.1

[0055] Lower guide plate 2.15.2

[0056] Upper mounting plate 2.15.3

[0057] Adjustable baffle 2.16

[0058] Support frame 2.17

[0059] Oil curtain hole 2.18

[0060] Circulating fan set 3

[0061] First air inlet 4

[0062] First air outlet 5

[0063] Second air inlet 6

[0064] Air return 7

[0065] Air duct 8

[0066] Air return duct 9

[0067] Dynamic pressure layer 10

[0068] Static pressure layer 11

[0069] Paint spraying layer 12

[0070] Exhaust pipe 13

[0071] First oil tank 14

[0072] Second oil tank 15

[0073] First pipeline 16

[0074] Second pipeline 17

[0075] Centrifuge 18

[0076] Third pipeline 19

[0077] Fourth pipeline 20

[0078] Liquid separator 21 DETAILED DESCRIPTION

[0079] The application will be further described in detail below in conjunction with the drawings.

[0080] As Figures 1-10 shown, the oil curtain spraying room of the application comprises a paint spraying chamber 1, an oil gas separation chamber 2 and a circulating air blower set 3, the oil gas separation chamber 2 is arranged below the paint spraying chamber 1, the paint spraying chamber 1 is provided with a first air inlet 4 at the upper portion, the paint spraying chamber 1 is provided with a first air outlet 5 at the bottom, the oil gas separation chamber 2 is provided with a second air inlet 6 at the top, the oil gas separation chamber 2 is provided with an air return 7 at the lower portion, the first air outlet 5 and the second air inlet 6 are connected in communication, the air outlet of the circulating air blower set 3 and the first air inlet 4 are connected through an air duct 8, and the air return 7 is connected with the air inlet of the circulating air blower set 3 through an air return duct 9;

[0081] The paint spraying chamber 1 is sequentially provided with a dynamic pressure layer 10, a static pressure layer 11 and a paint spraying layer 12 from top to bottom, and the first air inlet 4 is connected in communication with the dynamic pressure layer 10;

[0082] The return air outlet 7 has two, two return air outlets 7 are arranged on the left and right sides of the oil-gas separation chamber 2, and the left and right return air outlets 7 are connected with the air inlet of the circulating fan set 3 through return air pipes 9 respectively;

[0083] The air outlet of the circulating fan set 3 is also connected with the RTO through an exhaust pipe 13;

[0084] The oil-gas separation chamber 2 comprises a separation box body 2.1, two upper baffles 2.2 are symmetrically arranged on the top of the separation box body 2.1, the second air inlet 6 is located between the left and right two upper baffles 2.2, an upper support plate 2.3 is arranged outside the upper baffles 2.2 and extends outward, an upper oil overflow groove 2.4 is arranged on the upper support plate 2.3, a lower support plate 2.5 is arranged below the second air inlet 6, a left oil curtain plate 2.6 and a right oil curtain plate 2.7 are arranged between the left and right two upper baffles 2.2 and the lower support plate 2.5 respectively, the left oil curtain plate 2.6 and the right oil curtain plate 2.7 are symmetrically arranged, two lower oil overflow grooves 2.8 are arranged below the lower support plate 2.5, the lower support plate 2.5 extends to above the two lower oil overflow grooves 2.8 on the left and right sides, and a middle passage 2.9 is formed between the two lower oil overflow grooves 2.8, and an oil storage groove 2.10 is arranged below the middle passage 2.9;

[0085] The upper baffles 2.2 are provided with oil curtain holes 2.18 at positions corresponding to the left oil curtain plate 2.6 or the right oil curtain plate 2.7;

[0086] The left and right two lower oil overflow grooves 2.8 are arranged on the left and right side walls of the separation box body 2.1 respectively;

[0087] An outer baffle 2.11 is arranged upwardly outside the upper support plate 2.3;

[0088] An inner baffle 2.12 is arranged upwardly inside the upper baffles 2.2;

[0089] The left oil curtain plate 2.6 and the right oil curtain plate 2.7 are both arranged obliquely;

[0090] The included angle between the left oil curtain plate 2.6 and the right oil curtain plate 2.7 and the horizontal plane is 85°;

[0091] The left oil curtain plate 2.6 and the right oil curtain plate 2.7 are both provided with a plurality of plates, and the plurality of left oil curtain plates 2.6 and the plurality of right oil curtain plates 2.7 are arranged in parallel inside and outside;

[0092] A connecting plate 2.13 is arranged on the back of the upper baffles 2.2, a bottom groove 2.14 is arranged on the front of the lower support plate 2.5, and the left oil curtain plate 2.6 or the right oil curtain plate 2.7 is connected between the connecting plate 2.13 and the bottom groove 2.14;

[0093] The lower support plate 2.5 is provided with a baffle mounting frame 2.15 on both sides, and the inside of the baffle mounting frame 2.15 is provided with an adjusting baffle 2.16;

[0094] The adjusting baffle 2.16 is located outside the left oil curtain plate 2.6 or the right oil curtain plate 2.7;

[0095] The baffle mounting frame 2.15 comprises a bottom plate 2.15.1, the outside of the bottom plate 2.15.1 is provided with a lower guide plate 2.15.2 downward, and the inside of the bottom plate 2.15.1 is provided with an upper mounting plate 2.15.3 upward, and the adjusting baffle 2.16 is connected with the upper mounting plate 2.15.3 through bolts;

[0096] The bottom plate 2.15.1 is connected with the lower support plate 2.5 through bolts;

[0097] The oil storage groove 2.10 is provided below the support frame 2.17, and the oil storage groove 2.10 is arranged on the support frame 2.17;

[0098] The support frame 2.17 is connected and arranged between the left and right two side walls of the separation box 2.1;

[0099] The left oil curtain plate 2.6 and the right oil curtain plate 2.7 are the same in structure, and each comprises an oil curtain plate body 2.6.1, a plurality of ventilation holes 2.6.2 are vertically formed on the oil curtain plate body 2.6.1, and the plurality of ventilation holes 2.6.2 are arranged in front of and behind each other;

[0100] The size of the ventilation hole 2.6.2 gradually increases from top to bottom;

[0101] The ventilation hole 2.6.2 is symmetrically provided with a wind guide plate 2.6.3 on the front and back sides, and the wind guide plate 2.6.3 is located outside the oil curtain plate body 2.6.1;

[0102] The included angle between the wind guide plate 2.6.3 and the oil curtain plate body 2.6.1 is 120°;

[0103] The ventilation holes 2.6.2 of the plurality of left oil curtain plates 2.6 or the plurality of right oil curtain plates 2.7 are staggered arranged in front of and behind each other;

[0104] The oil curtain spraying house further comprises a first oil tank 14 and a second oil tank 15, the left and right two overflow oil grooves 2.8 and the oil storage groove 2.10 are connected with the first oil tank 14 through a first pipeline 16, the first oil tank 14 and the second oil tank 15 are connected through a second pipeline 17, the second pipeline 17 is provided with a centrifugal machine 18, and the second oil tank 15 is connected with the left and right two overflow oil grooves 2.4 through a third pipeline 19;

[0105] The second oil tank 15 is connected with a liquid separator 21 through a fourth pipeline 20.

[0106] Working principle:

[0107] When painting, the circulating fan unit sends fresh air meeting the requirements of the spray room environment from the first air inlet to the top of the paint spray chamber. The fresh air enters the oil-gas separation chamber below the paint spray chamber after passing through the dynamic pressure layer, the static pressure layer and the paint spray layer in turn. The air carrying paint mist contacts the oil curtain of the left and right oil curtain plates in the oil-gas separation chamber, so that the oil gas mixed with paint slag is separated from the air, and the mixture of waste paint slag and mineral oil is left in the oil storage tank. The clean air after separation is collected from the return air outlet and discharged, completing the paint mist separation process. The purified air is discharged to the environmental protection treatment equipment (RTO) for final treatment, so as to meet the standard for emission into the atmosphere. The mixture of waste paint slag and mineral oil left in the oil tank is separated into solid waste paint slag and recycled mineral oil by the paint slag treatment and recovery device. The separated mineral oil enters the circulation system and is recycled.

[0108] In addition to the above-mentioned embodiments, the present application also includes other implementation manners, and any technical solutions formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the claims of the present application.

Claims

1. An oil curtain spray booth, characterized in that: It includes a spray booth (1), an oil-gas separation chamber (2), and a circulating fan unit (3). The oil-gas separation chamber (2) is located below the spray booth (1). The spray booth (1) has a first air inlet (4) at its upper part and a first air outlet (5) at its bottom. The oil-gas separation chamber (2) has a second air inlet (6) at its top and a return air outlet (7) at its lower part. The first air outlet (5) is connected to the second air inlet (6). The air outlet of the circulating fan unit (3) is connected to the first air inlet (4) through an air duct (8). The return air outlet (7) is connected to the air inlet of the circulating fan unit (3) through a return air duct (9). The oil-gas separation chamber (2) includes a separation box (2.1). Two upper baffles (2.2) are symmetrically arranged on the top of the separation box (2.1). The second air inlet (6) is located between the two upper baffles (2.2). An upper support plate (2.3) is arranged extending outward from the outer side of the upper baffle (2.2). An upper oil overflow groove (2.4) is arranged on the upper support plate (2.3). A lower support plate (2.5) is arranged below the second air inlet (6). The lower support plate (2.5) is connected to the two upper baffles. A left oil curtain plate (2.6) and a right oil curtain plate (2.7) are respectively provided between the plates (2.2). The left oil curtain plate (2.6) and the right oil curtain plate (2.7) are arranged symmetrically on the left and right sides. Two overflow oil troughs (2.8) are provided below the lower support plate (2.5). The left and right sides of the lower support plate (2.5) extend to the top of the two overflow oil troughs (2.8). A middle channel (2.9) is formed between the two overflow oil troughs (2.8). An oil storage tank (2.10) is provided below the middle channel (2.9). The left oil curtain plate (2.6) and the right oil curtain plate (2.7) have the same structure, both including an oil curtain plate body (2.6.1). The oil curtain plate body (2.6.1) has vertical ventilation holes (2.6.2) along its upper edge. There are multiple ventilation holes (2.6.2), and the multiple ventilation holes (2.6.2) are arranged at intervals. The size of the ventilation hole (2.6.2) gradually increases from top to bottom; The ventilation hole (2.6.2) is symmetrically provided with air guide plates (2.6.3) on both the front and rear sides, and the air guide plates (2.6.3) are located on the outside of the oil curtain plate body (2.6.1); The oil curtain spray booth also includes a first oil tank (14) and a second oil tank (15). The two lower overflow oil tanks (2.8) and the oil storage tank (2.10) are connected to the first oil tank (14) through a first pipeline (16). The first oil tank (14) and the second oil tank (15) are connected through a second pipeline (17). A centrifuge (18) is installed on the second pipeline (17). The second oil tank (15) is connected to the two upper overflow oil tanks (2.4) through a third pipeline (19). A liquid separator (21) is connected to the second oil tank (15) via a fourth pipeline (20).

2. The oil curtain spray booth according to claim 1, characterized in that: The spray booth (1) is provided with a dynamic pressure layer (10), a static pressure layer (11) and a paint layer (12) arranged from top to bottom. The first air inlet (4) is connected to the dynamic pressure layer (10).

3. The oil curtain spray booth according to claim 1, characterized in that: There are two return air inlets (7), which are located on the left and right sides of the oil-gas separation chamber (2). The two return air inlets (7) are connected to the air inlet of the circulating fan unit (3) through return air pipes (9).

4. The oil curtain spray booth according to claim 1, characterized in that: The air outlet of the circulating fan unit (3) is also connected to the RTO through the exhaust pipe (13).

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