CN215843831U

CN215843831U - Steel pipe spraying equipment without exhaust emission

Info

Publication number: CN215843831U
Application number: CN202122366511.3U
Authority: CN
Inventors: 王寅
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-02-18
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses steel pipe spraying equipment without exhaust emission, which comprises a spraying host machine and a coating recovery system, wherein the coating recovery system is communicated with the spraying host machine, the spraying host machine comprises a front sealing air curtain device, a front sealing bin, a spraying bin, a rear sealing bin and a rear sealing air curtain device which are sequentially arranged, a channel for a pipe to be sprayed to pass through is arranged in the front sealing air curtain device, the front sealing bin, the spraying bin, the rear sealing bin and the rear sealing air curtain device, and a plurality of spray guns are arranged in the spraying bin. According to the utility model, the front sealing air curtain device and the rear sealing air curtain device are arranged, the inlet and the outlet of the channel are sealed in an air curtain sealing mode, and the pressure of the air curtain is greater than that of the spray gun, so that the waste gas is prevented from overflowing from the inlet and the outlet of the channel, and the waste gas emission is reduced.

Description

Steel pipe spraying equipment without exhaust emission

Technical Field

The utility model belongs to the technical field of spraying equipment, and particularly relates to steel pipe spraying equipment without exhaust emission.

Background

Some existing pipeline spraying machines are cylindrical spraying boxes, spray guns are arranged around the spraying boxes, when a pipeline passes through the spraying boxes, the corresponding number of spray guns which are uniformly distributed around the cylindrical spraying boxes spray out paint, the pipeline is positioned in the surrounding of fan-shaped paint mist flow sprayed by a plurality of spray guns, and the outer surface of the pipeline is coated with the paint along with the advancing of the pipeline.

The spraying box can not be as long as the pipeline generally due to the fact that the spraying box is limited by the size of a field and the length of the pipeline, the whole pipeline cannot be completely sealed in the spraying box, and therefore holes are reserved in an inlet of the pipeline at the front end of the spraying box and an outlet of the pipeline at the rear end of the spraying box, and the pipeline can conveniently penetrate through the spraying box.

The front end and the rear end hole of current spraying case do not have effectual sealed mode, when the spraying, even there is the draught fan at convulsions, still have the coating cloud to be taken to the outside air along with the motion of pipeline to the high pressure of spray gun when the spraying also can be taken partial coating cloud to the outside air.

The existing spraying box is used for exhausting air at the top, but the coating recovery device is arranged at the bottom of the spraying box, the exhausting direction is opposite to the recovery direction, so that part of the paint mist which can be recovered cannot be recovered, and the utilization rate of the coating is lower than that of the coating.

The existing recovery device is not closed, the recovered coating is gradually dried and solidified after being contacted with air, a diluent is required to be additionally added for recovery, and external impurities can also enter the recovery device to pollute the coating.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide steel pipe spraying equipment without waste gas emission, which solves the problem of sealing two ends of a spraying machine and reduces the emission of waste gas.

According to a first aspect of the present invention, there is provided an exhaust emission-free steel pipe painting apparatus comprising:

the spraying main machine comprises a front sealing air curtain device, a front sealing bin, a spraying bin, a rear sealing bin and a rear sealing air curtain device which are sequentially arranged, a channel for a pipe to be sprayed to pass through is arranged in the front sealing air curtain device, the front sealing bin, the spraying bin, the rear sealing bin and the rear sealing air curtain device, and a plurality of spray guns are arranged in the spraying bin;

and the coating recovery system is communicated with the spraying host machine.

In a particular embodiment of the utility model, the front and rear sealing air curtain devices each comprise a plurality of nozzles distributed along a certain circumference, the nozzles being directed towards the location of the channel.

In a specific embodiment of the utility model, at least one partition board is arranged in the front sealed cabin and the rear sealed cabin at intervals.

In a specific embodiment of the utility model, the coating recovery system comprises a coating recovery box connected with the spraying bin, the coating recovery box is connected with a multi-stage gas treatment device, a gas outlet of the multi-stage gas treatment device is connected with an induced draft fan, and the induced draft fan is respectively connected with the front sealing gas curtain device and the rear sealing gas curtain device.

In a specific embodiment of the utility model, the induced draft fan is respectively connected with the front sealing air curtain device and the rear sealing air curtain device through the heat exchanger.

In a specific embodiment of the utility model, a gas separator is arranged in the coating recovery tank, and an outlet of the gas separator is connected with the multi-stage gas treatment device.

In a particular embodiment of the utility model, the spraying main machine is mounted on the lifting device.

In a particular embodiment of the utility model, the plurality of lances is connected to the magazine by a first line.

In a particular embodiment of the utility model, the painting mainframe comprises a heating source for heating the first pipe.

One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects: according to the utility model, the front sealing air curtain device and the rear sealing air curtain device are arranged, the inlet and the outlet of the channel are sealed in an air curtain sealing mode, and the pressure of the air curtain is greater than that of the spray gun, so that the waste gas is prevented from overflowing from the inlet and the outlet of the channel, and the waste gas emission is reduced.

Drawings

The utility model is further described below with reference to the accompanying drawings and examples;

fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, and may be, for example, a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other elements or indirectly connected through one or more other elements or in an interactive relationship between two elements.

The following disclosure provides many different embodiments, or examples, for implementing different aspects of the utility model.

Referring to fig. 1, a steel pipe spraying apparatus without exhaust emission comprises a spraying host 1 and a coating recovery system, wherein the coating recovery system is communicated with the spraying host 1, the spraying host 1 comprises a front sealing air curtain device 11, a front sealing bin 12, a spraying bin 14, a rear sealing bin 10 and a rear sealing air curtain device 9 which are sequentially arranged, a channel for a pipe to be sprayed to pass through is arranged in the front sealing air curtain device 11, the front sealing bin 12, the spraying bin 14, the rear sealing bin 10 and the rear sealing air curtain device 9, and a plurality of spray guns 15 are arranged in the spraying bin 14; the front sealing air curtain device 11 and the rear sealing air curtain device 9 are used for sealing the inlet and the outlet of the channel in an air curtain sealing mode, and the pressure of the air curtain is greater than that of the spray gun 15, so that the waste gas is prevented from overflowing from the inlet and the outlet of the channel, and the waste gas emission is reduced. The utility model can use different numbers of spray guns 15 combination mode aiming at the pipelines with different pipe diameters.

The coating recovery system comprises a coating recovery box 2 connected with a spraying bin 14, wherein a multistage gas treatment device 3 is connected onto the coating recovery box 2, a draught fan 4 is connected to a gas outlet of the multistage gas treatment device 3, and the draught fan 4 is respectively connected with a front sealing gas curtain device 11 and a rear sealing gas curtain device 9. The paint recovery box 2 is of a closed structure, and the paint recovery box 2 is only connected with the front sealed cabin 12 or/and the spraying cabin 14 or/and the rear sealed cabin 10. During spraying, for adnexed coating and spraying flow into coating collection box 2 under gravity and the drive of draught fan 4, because the spraying can't directly collect in coating collection box 2, can flow under the effect of draught fan 4, under the effect of the gas separator in coating collection box 2, partial spraying breaks away from and gathers from the air, and partial coating after the gathering flows into coating collection box 2 and is recycled. The separated gas enters a multi-stage gas treatment device 3, the gas is treated in the multi-stage gas treatment device 3 in the modes of water curtain, spray tower, activated carbon adsorption, zeolite runner adsorption, catalytic combustion and the like, the purpose of absorbing, decomposing and treating organic volatile matters in paint mist generated by spraying is achieved, the treated gas is sent to a front sealing gas curtain device 11 and a rear sealing gas curtain device 9 through a draught fan 4, and the sprayed gas forms a sealing gas curtain at the inlet and the outlet of a channel, so that the gas recycling is realized.

The gas separator may separate the coating material by inertial separation, centrifugal separation, or the like.

In one embodiment of the present invention, the front sealing air curtain device 11 and the rear sealing air curtain device 9 respectively comprise a plurality of nozzles distributed along a certain circumference, the plurality of nozzles face to the position of the channel, and the air sprayed from the nozzles forms an air curtain sprayed from the channel to the center from the periphery, so as to seal the inlet and the outlet of the channel.

In one embodiment of the present invention, at least one partition plate 13 is arranged in the front sealed cabin 12 and the rear sealed cabin 10 at intervals. The number of the front sealed cabin 12 and the rear sealed cabin 10 can be changed to adjust the cylinder of the sealing gas according to the requirement, so that the air pressure is ensured to be slightly larger than the pressure of the coating during spraying.

In an embodiment of the utility model, the induced draft fan 4 is respectively connected with the front sealing air curtain device 11 and the rear sealing air curtain device 9 after passing through the heat exchanger 5, and the temperature of the gas is raised through the heat exchanger before entering the front sealing air curtain device 11 and the rear sealing air curtain device 9.

In an embodiment of the present invention, the spraying host 1 is installed on the lifting device 16, and is used for adjusting the central height of the spraying host 1 to correspond to the central heights of pipelines with different pipe diameters.

In one embodiment of the utility model, a plurality of lances 15 are connected to the magazine via the first line 8. The stock container includes a first stock container 6 that stores paint and a second stock container 7 that stores cleaning liquid. The first pipeline 8 is provided with a switching valve, and the first storage container 6 or the second storage container 7 communicated with the spray gun 15 is controlled through the switching valve, so that the spray gun 15 sprays paint or cleaning liquid.

In one embodiment of the present invention, the host 1 includes a heating source for heating the first conduit 8, and the first conduit 8 is heated when the ambient temperature is too low, so as to prevent the paint from condensing in the first conduit 8.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a steel pipe spraying equipment that no exhaust was discharged which characterized in that includes:

and the coating recovery system is communicated with the spraying host machine.

2. The exhaust emission-free steel pipe spraying apparatus as claimed in claim 1, wherein the front sealing air curtain device and the rear sealing air curtain device respectively comprise a plurality of nozzles distributed along a circumference, and the plurality of nozzles face the position of the passage.

3. The steel pipe spraying equipment without exhaust emission according to claim 1 or 2, wherein at least one partition plate is arranged in the front sealed cabin and the rear sealed cabin at intervals.

4. The steel pipe spraying equipment without exhaust emission according to claim 1, wherein the coating recovery system comprises a coating recovery box connected with the spraying bin, a multi-stage gas treatment device is connected onto the coating recovery box, an induced draft fan is connected to a gas outlet of the multi-stage gas treatment device, and the induced draft fan is respectively connected with the front sealing gas curtain device and the rear sealing gas curtain device.

5. The steel pipe spraying equipment without exhaust emission according to claim 4, wherein the induced draft fan is connected with the front sealing air curtain device and the rear sealing air curtain device respectively after passing through the heat exchanger.

6. The steel pipe spraying equipment without exhaust emission according to claim 4, wherein a gas separator is arranged in the coating recovery tank, and an outlet of the gas separator is connected with the multistage gas treatment device.

7. The steel pipe spraying apparatus without exhaust gas emission according to claim 1, wherein the spraying main body is installed on a lifting device.

8. The exhaust emission-free steel pipe painting apparatus according to claim 1, wherein the plurality of spray guns are connected to the storage container through a first pipe.

9. The exhaust emission-free steel pipe painting apparatus according to claim 8, wherein the painting main body includes a heating source for heating the first pipe.