CN218835042U - Coating volatile matter circulating combustion device of roller coated aluminum plate - Google Patents

Abstract

The utility model discloses a roller aluminum plate's coating volatile matter circulating combustion device, its technical scheme main points are: the device comprises a coating box and a drying box, wherein a group of coating rollers are arranged in the coating box, the output end of the coating direction is mutually connected with the input end of the drying box, the upper part of the coating box is provided with a gas collecting hood, the upper part of the gas collecting hood is connected with a gas collecting pipe, and the gas collecting pipe is provided with a fan for leading out wind; the burner is connected with the heat conduction pipe through the gas collecting pipe and the gas collecting hood, and the heat conduction pipe is used for leading out high-temperature tail gas generated by combustion and heating the drying box. The utility model discloses can carry out cyclic utilization to the volatile gas that coating process produced, can be with the heat input that the burning produced to the stoving case in the middle of through hot-blast main and concurrent heating pipeline, can play the effect of heating, and then can reduce the required energy consumption of stoving in-process, play energy saving and emission reduction's effect.

Description

Coating volatile matter circulating combustion device of roller coated aluminum plate

Technical Field

The utility model relates to an aluminum plate production facility, more specifically say that it relates to a roller coated aluminum plate's coating volatile matter circulating combustion device, still relates to a roller coated aluminum plate's heating compensation system.

Background

Aluminum plate need carry out coating treatment to aluminum plate's surface in process of production for can form the protection film on aluminum plate's surface, can play the effect to aluminum plate protection on the one hand, improve aluminum plate's surface property, on the other hand still can change aluminum plate surface's colour through the coating, play certain decorative effect.

In the coating process, the coated coating is exposed in the air, and the coating can volatilize a large amount of organic waste gas, namely the coating is harmful to the health of workers in a production field and the natural environment. The plate needs to be dried after being coated, and the coating on the surface of the aluminum plate can be further volatilized in the heating process, so that more organic waste gas is generated, and more harm is further caused. Therefore, the waste gas is required to be adsorbed by the activated carbon, the waste gas is firstly collected in a concentrated manner, and then the collected waste gas is introduced into the activated carbon adsorption equipment to be adsorbed by the waste gas, so that a large amount of activated carbon materials are required to be consumed.

The organic waste gas in the coating is combustible gas, the other treatment mode is to carry out combustion treatment on the waste gas in a combustor, the waste gas is combusted in the combustor, and then the tail gas of the combustion is adsorbed by water or other corresponding reagents, so that the use of activated carbon materials in the waste gas treatment process is reduced, and the treatment cost is reduced. The waste gas treatment in partial fields, in the treatment process, waste heat can be introduced into the drying box to heat and dry the coating, and the energy-saving effect is achieved. However, the most heating effect of this kind of scheme is unsatisfactory, and some directly let in the stoving case with high temperature waste gas influence coating and aluminum plate's surface state, and some simple pipelines of adoption let in the stoving case, and the heating efficiency of steam is not good, and the heat utilization efficiency reduces, can't adjust the heat of retrieving moreover, can't be applicable to the production of aluminum plate coating.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the above-mentioned problem and provide a roller coated aluminum plate's coating volatile matter circulation burner, can carry out cyclic utilization to the volatile gas that the coating process produced, play the effect of compensation heating.

The above technical purpose of the present invention can be achieved by the following technical solutions: a coating volatile matter circulating combustion device of a roller-coated aluminum plate comprises a coating box and a drying box, wherein a group of coating rollers are arranged in the coating box, the output end in the coating direction is connected with the input end of the drying box, the upper part of the coating box is provided with a gas collecting hood, the upper part of the gas collecting hood is connected with a gas collecting pipe, and a fan used for leading wind out is arranged on the gas collecting pipe; the burner is connected with the gas collecting hood through a gas collecting pipe, and is connected with a heat conducting pipe which is used for leading out high-temperature tail gas generated by combustion; the heat supplementing device is a heat supplementing pipeline, and the heat supplementing pipeline is connected with the heat conduction pipe and used for heating and drying the aluminum plates in the drying box.

The utility model discloses further set up to, the concurrent heating pipeline includes a plurality of straight tube of group one and straight tube two, straight tube one and two parallel arrangement of straight tube are in last downside respectively, and the straight tube one of upper and lower side, two one-to-ones of straight tube are passed through U type joint between the straight tube one and the straight tube two of correspondence, pass through two intercommunications of U type joint between the adjacent straight tube two, and straight tube, straight tube two, U type joint one and U type joint two connect gradually and form crooked pipeline.

The utility model discloses further set up to, form the clearance that supplies aluminum plate to pass through between the straight tube one that corresponds and the straight tube two.

The utility model discloses further set up to, the one end intercommunication hot-blast main of concurrent heating pipeline, the other end is connected with the tailpipe pipe.

The utility model discloses further set up to, the concurrent heating pipeline of stoving incasement is provided with two sets ofly, is concurrent heating pipeline one and concurrent heating pipeline two respectively.

The utility model discloses further set up to, the mutual interval distribution of straight tube in concurrent heating pipeline one and concurrent heating pipeline two, the mutual interval distribution of straight tube two in concurrent heating pipeline one and concurrent heating pipeline two.

The utility model is further arranged in that two guide rollers are arranged in the drying box, and the aluminum plate sequentially bypasses the two guide rollers to form a three-layer structure which is parallel to each other and is respectively a first layer, a second layer and a third layer from bottom to top; the first straight pipe of the first concurrent heating pipeline is positioned at the lower side of the first layer, and the second straight pipe of the first concurrent heating pipeline is positioned between the second layer and the third layer; the first straight pipe of the second heat-supplementing pipeline is located on the lower side of the first layer, and the second straight pipe of the second heat-supplementing pipeline is located between the first layer and the second layer.

The utility model discloses further set up to, two sets of concurrent heating pipelines are connected with the hot-blast main through the branch pipe respectively, and the hot-blast main is through tee joint one and two branch pipe intercommunications, be provided with the governing valve on the branch pipe.

The utility model discloses further set up to, the output of coating case is connected with the extension section of thick bamboo that supplies the aluminum plate output, it stretches into the stoving incasement to extend a section of thick bamboo.

The utility model also provides a roll aluminum plate's heating compensation system, including foretell circulating combustion device, circulating combustion device installs on aluminum plate roller coat production line, circulating combustion device is used for the aluminum plate stoving heating after the roller coat.

To sum up, the utility model discloses following beneficial effect has:

the gas collecting hood is adopted to collect the volatile waste gas generated by coating, and the volatile waste gas is combusted through the combustor, so that the effect of treating the volatile harmful waste gas is achieved; in addition, heat can be generated in the combustion process, the heat generated by combustion can be input into the drying box through the hot air pipe and the heat supplementing pipeline, the heating effect can be achieved, further, the energy consumption required in the drying process can be reduced, and the effects of energy conservation and emission reduction are achieved. The curved concurrent heating pipeline of cooperation can be more even to distributing in the middle of the stoving case for the heat of used heat flue gas can the crooked circulation in-process, transmits more positions in the middle of the stoving case more evenly, and especially aluminum plate's that can evenly distributed both sides surface has improved the homogeneity to aluminum plate heating. In addition, in order to improve the heat transfer efficiency and the heat conduction uniformity of the heat compensation pipeline, fins can be arranged on the first straight pipe and the second straight pipe in the pipeline unevenly, so that the heat conduction area is increased, the heat transfer effect is enlarged, and the heating uniformity can be improved to a certain extent.

Drawings

FIG. 1 is a schematic view of a volatile matter-recycling coating combustion apparatus for roll-coated aluminum sheets according to the present invention;

FIG. 2 is a schematic structural view of the heat-supplying pipeline of the present invention;

FIG. 3 is a schematic structural view of the concurrent heating pipeline and the aluminum plate of the present invention;

fig. 4 is a schematic structural diagram of the exhaust pipe of the present invention.

Reference numerals: 1. a coating box; 101. a coating roll; 102. a gas-collecting hood; 200. an aluminum plate; 201. a first layer; 202. a second layer; 203. a third layer; 2. drying box; 3. an inner cavity; 31. a guide roller; 4. an extension cylinder; 5. a heat-supplementing device; 51. a first heat supplementing pipeline; 52. a second heat supplementing pipeline; 501. a first straight pipe; 502. a straight pipe II; 503. a first U-shaped joint; 504. a U-shaped joint II; 6. a branch pipe; 7. adjusting a valve; 8. a first tee joint; 9. a hot air pipe; 10. a burner; 11. a gas collecting pipe; 12. an air exhaust fan; 13. a tail gas pipe; 14. a tee joint II; 15. an exhaust pipe; 16. and (4) exhausting the valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment discloses a coating volatile matter circulating combustion device of a roll-coated aluminum plate, as shown in fig. 1, comprising a coating box 1 and a drying box 2, wherein an output end of the coating direction is connected with an input end of the drying box 2, the coating box 1 is used for roll-coating a passing aluminum plate 200, the drying box 2 is used for drying the coated aluminum plate 200, and the coating is carried out on the surface of the aluminum plate 200 to form a coating.

A set of coating rollers 101 is arranged in the coating box 1, the upper and lower coating rollers 101 are pressed against each other, the lower coating roller 101 is immersed in the coating, the coating is adhered to the surface of the coating roller 101 by rolling, and the lower surface of the aluminum plate 200 can be coated by rolling along with the rotation of the coating roller 101.

A gas collecting hood 102 is installed at an upper portion of the coating booth 1, and the other volatile paint in the coating booth 1 can be collected by the gas collecting hood 102. The upper part of the gas collecting hood 102 is connected with a gas collecting pipe 11, and a fan is arranged on the gas collecting pipe 11, and the fan can guide the waste gas collected by the gas collecting hood 102.

The circulating combustion device also comprises a combustor 10 and a heat supplementing device 5, wherein the combustor 10 is connected with a gas collecting hood 102 through a gas collecting pipe 11, and a fan can introduce waste gas collected in the gas collecting hood 102 into the combustor 10; moreover, because the coating box 1 is communicated with the drying box 2, volatile matters in the heating process in the drying box 2 can be sucked into the gas collecting pipe 11, and the pollution emission of waste gas in the drying process can be reduced.

The combustor 10 has a combustion chamber therein, which can burn the organic volatile in the exhaust gas, and the combustion will generate high-temperature tail gas, through which the drying box 2 can be heated. The specific structure of the burner 10 is conventional in the art and will not be described herein.

The concurrent heating device 5 is the concurrent heating pipeline, installs in stoving case 2 in the middle of, and the concurrent heating pipeline passes through the heat pipe and is connected with combustor 10, can let in concurrent heating device 5 with high temperature tail gas through the heat pipe, introduces stoving case 2 in the middle of with the heat that combustor 10 produced, realizes heating in the stoving case 2.

An independent heating device is arranged in the drying box 2, and can heat and dry the coating frame on the surface of the aluminum plate 200 in the drying box 2. The heat supplementing device 5 mainly plays a role in heating compensation in the drying box 2, the heating temperature of the heating device can be properly reduced on the basis of the heat supplementing device 5, and the reduction of heating energy consumption can be realized by matching with the heat supplementing device 5. Simultaneously, can carry out combustion treatment with the volatile organic waste gas of coating through circulation burner, and then reducible waste gas's emission, pollution abatement.

Be connected with the extension section of thick bamboo 4 that supplies aluminum plate 200 to export at the output of coating case 1, extension section of thick bamboo 4 stretches into drying case 2, can realize being connected between drying case 2 and coating case 1 through extending section of thick bamboo 4, reduces the space of seam department between the two, reduces especially giving off of waste gas.

As shown in fig. 2 and 3, the heat-supplementing pipeline comprises a plurality of groups of first straight pipes 501 and second straight pipes 502, the first straight pipes 501 and the second straight pipes 502 are respectively arranged on the upper side and the lower side in parallel, the first straight pipes 501 and the second straight pipes 502 on the upper side and the lower side are in one-to-one correspondence, the first straight pipes 501 and the second straight pipes 502 in the upper-to-lower correspondence are communicated through first U-shaped joints 503, and the adjacent second straight pipes 502 are communicated through second U-shaped joints 504, so that the straight pipes, the second straight pipes 502, the first U-shaped joints 503 and the second U-shaped joints 504 are sequentially connected to form a bent pipeline, high-temperature flue gas completely passes through the heat-supplementing pipeline in the circulation process, the position where the heat-supplementing pipeline passes can be heated, and heating in the drying box 2 is realized.

In the middle of the concurrent heating pipeline, form the clearance that supplies aluminum plate 200 to pass through between first straight tube 501 and the second straight tube 502, aluminum plate 200 passes through between first straight tube 501 and the second straight tube 502, realizes the stoving heating effect. The curved concurrent heating pipeline of cooperation can be more even to the middle of stoving case 2 ground that distributes for the heat of used heat flue gas can crooked circulation in-process, transmits more positions to stoving case 2 middle ground more evenly, and especially aluminum plate 200's that can evenly distributed both sides surface has improved the homogeneity to aluminum plate 200 heating. In addition, in order to improve the heat transfer efficiency and the heat conduction uniformity of the heat compensation pipeline, fins can be arranged on the first straight pipe 501 and the second straight pipe 502 in the pipeline unevenly, so that the heat conduction area is increased, the heat transfer effect is enlarged, and the heating uniformity can be improved to a certain extent.

One end of the heat supplementing pipeline is communicated with the hot air pipe 9, the other end of the heat supplementing pipeline is connected with the tail gas pipe 13, high-temperature flue gas is input from one end of the hot air pipe 9, and is output from the tail gas pipe 13 after passing through the heat supplementing pipeline, and the temperature of the high-temperature tail gas is reduced. Most of the tail gas discharged from the tail gas pipe 13 is carbon dioxide, and the carbon dioxide can be introduced into water for absorption treatment, or can be matched with other absorption reagents for treatment, so that the waste gas treatment pressure can be greatly reduced.

In order to prolong the time of the aluminum plate 200 passing through the drying box 2, i.e. the time of heating and drying, two guide rollers 31 may be installed inward in the drying direction, and the aluminum plate 200 sequentially bypasses the two guide rollers 31 to form a three-layer structure parallel to each other, i.e. a first layer 201, a second layer 202 and a third layer 203 from bottom to top, as shown in fig. 1. The lower side of the aluminum sheet 200 was coated, and the uncoated back surface of the aluminum sheet 200 was in contact with the guide roll 31 when the sheet was passed around the first guide roll 31, and the coating was not affected, and the second pass around the guide roll 31 was almost dry and did not affect the coating.

Furthermore, two groups of heat-supplementing pipelines are arranged in the drying box 2, namely a first heat-supplementing pipeline 51 and a second heat-supplementing pipeline 52. The two groups of heat supplementing pipelines are respectively connected with the hot air pipe 9 through the branch pipes 6, the hot air pipe 9 is communicated with the two branch pipes 6 through a tee joint I8, and namely, the heat output from the hot air pipe 9 forms two branch circuits. And moreover, the regulating valves 7 are arranged on the two branch pipes 6, the hot air flow of the two groups of branch pipes 6 can be regulated by regulating the regulating valves 7, so that the heat of the first heat supplementing pipeline 51 and the second heat supplementing pipeline 52 can be regulated, and the regulation of the heat compensation conditions of different positions inside the drying process can be realized by matching with the installation positions of the first heat supplementing pipeline 51 and the second heat supplementing pipeline 52.

Specifically, as shown in fig. 1, the first straight pipes 501 in the first heat compensation pipeline 51 and the second heat compensation pipeline 52 are distributed at intervals, the second straight pipes 502 in the first heat compensation pipeline 51 and the second heat compensation pipeline 52 are also distributed at intervals, a mutual staggered distribution structure is formed, and for convenience of arrangement, the structures of the first U-shaped joint 503 and the second U-shaped joint 504 can be adjusted appropriately, so that the two sets of heat compensation pipelines can be arranged normally.

Moreover, a first straight pipe 501 of the first heat supplementing pipeline 51 is positioned at the lower side of the first layer 201, and a second straight pipe 502 of the first heat supplementing pipeline 51 is positioned between the second layer 202 and the third layer 203; the first straight pipe 501 of the second heat-supplementing pipeline 52 is positioned on the lower side of the first layer 201, and the second straight pipe 502 of the second heat-supplementing pipeline is positioned between the first layer 201 and the second layer 202. This arrangement, which allows the heating tubes to be most densely arranged below the aluminum sheet 200 of the first layer 201, is relatively sparse in the middle of the first and second layers 201 and 202 and in the middle of the second and third layers 202 and 203, and allows heat to be concentrated to a lower position of the first layer 201 of the highest-level coating. After the coating is dried, the coating can be quickly heated firstly to realize primary drying, and then is completely dried and cured step by step in the processes of conveying and drying.

Meanwhile, the regulating valve 7 on the branch pipe 6 can be regulated according to the requirement of temperature compensation in the drying process, and the heat generated in the compensation process can be properly regulated and controlled, so that the adaptation condition of the circulating combustion device is improved.

Further, as shown in fig. 4, an exhaust pipe 15 may be connected to the hot blast pipe 9 through a second three-way joint 14, the exhaust and the two branch pipes 6 supply air independently, and an exhaust valve 16 may be installed on the exhaust pipe 15. The exhaust valve 16 can directly exhaust the burnt tail gas, so that the total heat input into the drying box 2 can be reduced, and the heating and adjusting effects are achieved.

The embodiment also discloses a heating compensation system of the roll-coated aluminum plate, which comprises the circulating combustion device, wherein the circulating combustion device is arranged on the roll-coating production line of the aluminum plate 200, volatile waste gas generated in the roll-coating process can be collected through the circulating combustion device, organic pollutants in the volatile waste gas are eliminated through combustion treatment, heat generated by combustion can be continuously recycled, and the effects of energy conservation and emission reduction are achieved.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. A coating volatile matter circulating combustion device of a roller-coated aluminum plate comprises a coating box (1) and a drying box (2), wherein a group of coating rollers (101) are arranged in the coating box (1), and the output end of the coating direction is mutually connected with the input end of the drying box (2), and the coating volatile matter circulating combustion device is characterized in that a gas collecting hood (102) is arranged at the upper part of the coating box (1), a gas collecting pipe (11) is connected to the upper part of the gas collecting hood (102), and a fan used for leading wind out is arranged on the gas collecting pipe (11); the gas-fired boiler is characterized by further comprising a combustor (10) and a heat supplementing device (5), wherein the combustor (10) is connected with a gas collecting hood (102) through a gas collecting pipe (11), the combustor (10) is connected with a heat conducting pipe, and the heat conducting pipe is used for leading out high-temperature tail gas generated by combustion; the heat supplementing device (5) is a heat supplementing pipeline, and the heat supplementing pipeline is connected with the heat conduction pipe and used for heating and drying the aluminum plate (200) in the drying box (2).

2. The coating volatile matter circulation combustion device for the roll-coated aluminum plate is characterized in that the heat supplementing pipeline comprises a plurality of groups of first straight pipes (501) and second straight pipes (502), the first straight pipes (501) and the second straight pipes (502) are respectively arranged on the upper side and the lower side in parallel, the first straight pipes (501) and the second straight pipes (502) on the upper side and the lower side are in one-to-one correspondence, the corresponding first straight pipes (501) and the corresponding second straight pipes (502) are communicated through first U-shaped joints (503), the adjacent second straight pipes (502) are communicated through second U-shaped joints (504), and the first straight pipes, the second straight pipes (502), the first U-shaped joints (503) and the second U-shaped joints (504) are sequentially connected to form a bent pipeline.

3. A volatile matter recycling burner for coating material of roll-coated aluminum sheet according to claim 2, wherein a gap for passing aluminum sheet (200) is formed between corresponding first straight pipe (501) and second straight pipe (502).

4. The coating volatile matter circulation combustion device of roller-coated aluminum plate according to claim 2, characterized in that one end of the heat supplementing pipeline is communicated with a hot air pipe (9), and the other end is connected with an exhaust pipe (13).

5. The coating volatile matter circulation combustion device of the roll-coated aluminum plate is characterized in that two groups of heat supplementing pipelines are arranged in the drying box (2), namely a first heat supplementing pipeline (51) and a second heat supplementing pipeline (52).

6. A volatile matter recycling burner for coating material on a roll coated aluminum sheet according to claim 5 wherein the first straight pipes (501) of the first heating pipes (51) and the second straight pipes (52) are spaced apart from each other, and the second straight pipes (502) of the first heating pipes (51) and the second heating pipes (52) are spaced apart from each other.

7. The coating volatile matter circulation combustion device of the roller-coated aluminum plate is characterized in that two guide rollers (31) are arranged in the drying box (2), the aluminum plate (200) sequentially bypasses the two guide rollers (31) to form a three-layer structure which is parallel to each other and is a first layer (201), a second layer (202) and a third layer (203) from bottom to top respectively; the straight pipe I (501) of the first heat-supplementing pipeline (51) is positioned at the lower side of the first layer (201), and the straight pipe II (502) of the first heat-supplementing pipeline (51) is positioned between the second layer (202) and the third layer (203); the straight pipe I (501) of the heat supplementing pipeline II (52) is positioned on the lower side of the first layer (201), and the straight pipe II (502) of the heat supplementing pipeline is positioned between the first layer (201) and the second layer (202).

8. The coating volatile matter circulation combustion device of roller-coated aluminum plate of claim 5, characterized in that, two groups of heat supply pipelines are respectively connected with the hot air pipe (9) through branch pipes (6), the hot air pipe (9) is communicated with the two branch pipes (6) through a tee joint I (8), and the branch pipes (6) are provided with regulating valves (7).

9. The coating volatile matter circulating combustion device for roll-coated aluminum plates is characterized in that the output end of the coating box (1) is connected with an extension cylinder (4) for outputting an aluminum plate (200), and the extension cylinder (4) extends into the drying box (2).

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