CN1081310C - Full-automatic internal and external coating method for epoxy resin jacketed underground pipeline and its production line - Google Patents
Full-automatic internal and external coating method for epoxy resin jacketed underground pipeline and its production line Download PDFInfo
- Publication number
- CN1081310C CN1081310C CN98121010A CN98121010A CN1081310C CN 1081310 C CN1081310 C CN 1081310C CN 98121010 A CN98121010 A CN 98121010A CN 98121010 A CN98121010 A CN 98121010A CN 1081310 C CN1081310 C CN 1081310C
- Authority
- CN
- China
- Prior art keywords
- spray gun
- spraying
- rollgang
- production line
- spraying platform
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000003822 epoxy resin Substances 0.000 title claims description 11
- 229920000647 polyepoxide Polymers 0.000 title claims description 11
- 238000005507 spraying Methods 0.000 claims abstract description 83
- 239000007921 spray Substances 0.000 claims abstract description 60
- 239000000843 powder Substances 0.000 claims abstract description 29
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 239000000498 cooling water Substances 0.000 claims abstract description 17
- 239000004593 Epoxy Substances 0.000 claims abstract description 12
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 230000007306 turnover Effects 0.000 claims abstract description 8
- 238000007711 solidification Methods 0.000 claims abstract description 5
- 230000008023 solidification Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 239000011247 coating layer Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 239000003973 paint Substances 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 210000003298 dental enamel Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000011280 coal tar Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The present invention belongs to the technical field of a melting combined epoxy powder coating layer, particularly to a full-automatic internal and external coating production line of a melting combined epoxy buried pipeline. The internal and external coating method is carried out by simultaneously using preheating and solidification; the integral arrangement of the production line which is especially used for the coating method is arranged to form a U-shaped anticlockwise rotary angle at 180 degrees, a roll gang for transferring work pieces is transversely connected with a spray coating platform by a pipe turnover device, and internal and external spray coating sets, intermediate frequency furnaces and cooling water screens being in the same with the roll gang are arranged at both sides of the spray coating platform; a static support frame and a dynamic support frame are arranged in an internal spray gun, and an internal and external coating recovery device is statically arranged on the production line to carry out synchronous dynamic scan work. The present invention has the advantages of simultaneous internal and external coating, short period, large specification range, high automation, etc.
Description
The invention belongs to smelting combined epoxy powder coating technical field, specifically, it relates to the full-automatic inside and outside paint line of a kind of epoxy resin jacketed underground pipeline.
Corrosive pipeline is one of problem that people were concerned about and difficult point always, and transfer oil, rock gas, the pipeline great majority of water and seawater adopt buried pipeline, pipeline external surface is under the environment of soil corrosion, internal surface suffers the corrosion and the wearing and tearing of different transmission mediums, if directly adopt naked pipe as transfer line, pipeline will be in the corrosion that suffers surrounding environment in varying degrees after under arms, the working life of buried pipeline has been shortened in corrosion, reduced the conveying capacity of pipeline, the increase of operating cost and the generation of contingency have been caused, in recent decades, both at home and abroad all at the anti-corrosion method of seeking a kind of best-of-breed technology economy to increase the working life of buried pipeline.
The organic coating guard technology is the preventive means of recent metal surface of widely using, it has economy, characteristics such as laborsaving, the protecting method of organic coating mainly contains following several: the polyethylene band, coal tar enamel, bitumastic enamel, agate base of a fruit fat, fusion epoxy etc., breadboard comparative trial and the actual data analysis accumulation that obtains of field engineering through decades, the main conclusions of the quality of the coating of the buried pipeline that draws at last are: fusion epoxy＞coal tar enamel＞polyethylene band＞bitumastic enamel＞agate base of a fruit fat, external expert thought that the smelting combined epoxy application techniques was that the current application effect is best when estimating the aseptic technic of buried pipeline on the magazine in 92 years, user priority is selected, rising coating process.Just take up use smelting combined epoxy powder to carry out application from the sixties external morning, popularize in an all-round way to the eighties, since the nineties, new buried pipeline has adopted the method basically, and formed corresponding one the cover patented technology, Minnesota Mining and Manufacturing Company has carried out the coating of 64,500 kilometers buried pipeline the sixth of the twelve Earthly Branches with this aseptic technic before several years, obtained tangible economic and social benefit.Develop rapidly along with computer and automatic control technology, the needs of the coating project of the incompatible large-scale buried pipeline of production line of the relay control of producing before external and making, press for improvement, but results reported from the nearest data of authoritative company-U.S. CRC-EVANS of producing the anticorrosive coating production line, the technology of the paint line of the buried pipeline that it was built is not afterwards seen great improvement, its allocation of production adopts U-shaped loop structure or linear type structure, melt coating carries out at twice, be coated with or be coated with outward in carrying out respectively, and adopt two kinds of mode of heatings: in to be painted with indirect heating infrared as utilizing, be coated with outward and utilize induction heating, be coated with in it, being coated with recovering device outward is static or dynamic design.
China's smelting combined epoxy application buried pipeline starting is slower, just begins to introduce and digest external advanced person's epoxy coating, coating process and equipment to the eighties, and significantly improvement has been arranged.At first be the production line of Langfang pipeline office of petroleum department application outside the U.S. has introduced, can only use the import coating of Minnesota Mining and Manufacturing Company, because cost is too high, the pipeline of application can only be used for the pipeline of being on active service under river and the seabed severe rugged environment; The petroleum pipeline internal surface epoxy powder paint line of the common development of 86 years Prospecting Designing Inst., Northern China Petroleum Administrative Bureau and Anhui Chemical Rerearch Inst., but because to be coated the caliber scope too narrow and be coated with problem such as linear energy and do not apply on a large scale.In a word, at present domesticly developed and be from the adhere paint line deficiency of external introduction:
1. function singleness, or in be coated with or be coated with outward, and every production application pipeline single size;
2. automaticity is low, and major part also is in craft or mechanization degree, and efficient is lower, and environmental pollution is more serious;
3. adopt preheating and solidify two to go on foot, the application cycle is long;
4. the long pipeline that is coated with in is no more than 6 meters, and caliber is single or narrower, is not suitable for the application of different tube diameters length apart from buried pipeline;
5. the utilization ratio again of coating is low.
The purpose of this invention is to provide the inside and outside paint line of an epoxy resin jacketed underground pipeline, its automaticity height, application is multiple functional, and spraying effect is good, can satisfy the different production and the needs of technology, and the application cycle is short.
The object of the present invention is achieved like this: a kind of full-automatic internal and external coating method for epoxy resin jacketed underground pipeline, comprise that the powder melts that is coated with is attached to the workpiece surface and two processes of solidification intensity that are heated to regulation of expection, it is characterized in that: preheating and curing are carried out simultaneously, when the head of workpiece passes intermediate frequency furnace and arrives the position of inside and outside spray gun, open the valve of inside and outside spray gun simultaneously, uniformly spray inside and outside carrying out, realize the curing fully of coating by the curing rate of regulating clinkery epoxy powder and the waste heat that relies on workpiece self.
A kind of production line that is exclusively used in full-automatic internal and external coating method for epoxy resin jacketed underground pipeline, sandblast unit, outer ball blast unit, rollgang in comprising, turn over tube connecting device, spraying platform, spraying inside and outside unit, cooling water curtain and inside and outside application recovery plant, it is characterized in that:
Rollgang A, the B that is used to transmit workpiece and sets gradually, C laterally are connected with spraying platform A through turning over tube connecting device, side at spraying platform A is sequentially with external spraying machine group, intermediate frequency furnace, spraying platform B and internal spraying machine group, the opposite side of spraying platform A is by rollgang D, E and the valve setting mutually of cooling water curtain, and behind the scenes continuing of cooling water is provided with rollgang F, G;
Described spraying platform A is connected with inside and outside application recovery plant pipeline, and interior spray gun is arranged at spraying platform B top, is provided with static spray gun supporting frame below the interior spray gun; The interior spray gun outer wall that with the air is auxiliary power has the dynamic support frame, and powder conveying pipe is equipped with in rifle body the inside, and spout is located at powder conveying pipe one end, pressurized air and replenish power by powder delivery pump as pressurized air and come the coating of control flow rate to add powder conveying pipe from spray gun inlet;
Described inside and outside application recovery plant is made up of outer spraying recovering device, interior application recovering device, outer application recovering device is a spraying powder room, cover and Pneumatic butterfly valve were reclaimed in application in the application recovering device was provided with in described, application is reclaimed to cover and is positioned at spraying platform A top in the bucket shape, interior application is reclaimed the cover top and is equipped with as the Pneumatic butterfly valve that reclaims electric switch, and computer is picked up and surveyed mechanism and reclaim adjacent two synchronous workings with Pneumatic butterfly valve of cover according to the application application that finishes in the positioning control that back workpiece head arrives.
In addition, described rollgang is located on the frame, drive wheel passes the bearing support of transmission shaft by both sides and is fixed on the dovetail guide plate, connect by the roll adjustment leading screw between two vertical dovetail guide plates, be connected with universal shaft coupling with transmission shaft between two horizontal dovetail guide plates at the transmission shaft on the dovetail guide plate, the transmission shaft that is driven by balancing point wheel speed reducer is dovetail shaped on the whole.
The described tube connecting device that turns over is by being installed in tilting gear group on the rollgang C, investing connecing the steel unit and transmit bridge and constituting of spraying platform A, the tilting gear group comprises the push pipe electric pushrod and turns over pipe arrangement, described push pipe electric pushrod vertical direction places below the rollgang C, its top extends between the drive wheel on the rollgang C, with transmit below the bridge to turn over pipe arrangement hinged, this turns over the pipe arrangement the other end and is fixed on the frame that transmits below the bridge; Connect air-leg and tube connecting device that the steel unit comprises the can regulate load, extend between the drive wheel on the spraying platform A at the air-leg vertical direction under the spraying platform A, its top is positioned at below the tube connecting device middle part that can turn up at the middle part, and the other end of tube connecting device is articulated in the transmission bridge.
The dynamic support frame that the spray gun outer wall is had in described is the bikini structure, mainly form by preloading spring, sliding ball, lever and ball slip ring, folder spring and chuck are fixed on the rifle body by flange, the ball slip ring is housed between chuck and the housing, trim ring envelope ball slip ring is between chuck and housing, the angular lever that has preloading spring is fixed on the housing, the end that the preloading spring band colludes colludes and is being fixed on the spring seat of housing, lever have the end that presss from both sides spring with the end be equipped with can axially movable sliding ball supporting rod be tightened in, angle is 120 ° between each sliding ball.
Also have, in being installed in the spray gun below, be used to support in the static spray gun supporting frame of spray gun be electric pushrod.
Have again, a side of spraying machine in rollgang H is arranged at, its integral layout becomes the counterclockwise 180 ° of corners of h shape to place.
The present invention has following advantage:
1. application is multiple functional.The present invention adopts interior mode of heating, and inside and outside being coated with is housed on the production line, be coated with, be coated with outward in can be respectively, also can inside and outside be coated with simultaneously, promptly omnibearing application has changed the practice in additional heat energy source and the simple function of domestic present production line in the past;
2. automaticity height.The present invention utilizes the advanced integrated system of two level computer up and down, can realize the next flexible switching, finish any operation of multiple mode such as full-automatic, semi-automatic and manual, satisfy the actual conditions in the application, changed the dispersion of domestic and international production line control, huge, contactor control low group, numerous and diverse situation;
3. the application cycle is short, quality good.The present invention adopts preheating and solidifies the method for carrying out simultaneously, has shortened the application cycle, and its dynamic support frame has guaranteed interior spray gun and workpiece spindle coincidence in the spraying process, films uniformly continuously thereby form;
4. the application specification limit is big, the utilization efficiency of coatings height.The present invention adopts spray gun and dynamic spraying inside and outside reclaiming system in 12 meters long static, there are 8 powder pumps at the spray gun port place for powder, with pressurized air is auxiliary power source, changes in flow rate by control powder pump number and each powder pump coating, guaranteed that the spraying specification changes on a large scale, but application diameter of phi=80～1400 millimeter, length are the buried pipeline of 8～12 meters, wall thickness δ=4～12 millimeter, have changed at present the state of single application fixed dimension workpiece both at home and abroad;
5. the height of utilization ratio again of coating, the present invention adopts dynamic inside and outside recovering device, and the utilization ratio again of coating reaches more than 95%.
Description of drawings:
Fig. 1 is the full-automatic inside and outside paint line structural representation of epoxy resin jacketed underground pipeline.
Fig. 2 is a rollgang plan view among Fig. 1.
Fig. 3 is an interior application reclaiming system schematic representation among Fig. 1.
Fig. 4 is an interior spray gun schematic representation among Fig. 1.
Fig. 5 is a dynamic support frame schematic representation among Fig. 4.
Fig. 6 turns over the tube connecting device schematic representation for Fig. 1's.
Fig. 7 is that the A of Fig. 3 is to schematic representation.
Fig. 8 is a universal shaft coupling enlarged diagram among Fig. 4.
The present invention is described in detail below in conjunction with accompanying drawing.
Described full-automatic internal and external coating method for epoxy resin jacketed underground pipeline, comprise that the powder melts that is coated with is attached to the workpiece surface and two processes of solidification intensity that are heated to regulation of expection, it is characterized in that: preheating and curing are carried out simultaneously, when the head of workpiece (6) passes intermediate frequency furnace (5) and arrives the position of inside and outside spray gun, open the valve of inside and outside spray gun simultaneously, uniformly spray inside and outside carrying out, realize the curing fully of coating by the curing rate of regulating clinkery epoxy powder and the waste heat that relies on workpiece self.
Sandblast unit, outer ball blast unit, rollgang in the production line that is exclusively used in full-automatic internal and external coating method for epoxy resin jacketed underground pipeline comprises, turn over tube connecting device, spraying platform, spraying inside and outside unit, cooling water curtain and inside and outside application recovery plant (8), it is characterized in that:
Rollgang A, the B that is used to transmit workpiece (6) and sets gradually, C (11,12,13) laterally are connected with spraying platform A (31) through turning over tube connecting device, side at spraying platform A (31) is sequentially with external spraying machine group (41), intermediate frequency furnace (5), spraying platform B (32) and internal spraying machine group (42), the opposite side of spraying platform A (31) is by rollgang D, E (14,15) and the alternate setting of cooling water curtain (71,72), follow-up rollgang F, the G (16,17) of being provided with of cooling water curtain (72);
Described spraying platform is divided into solidifying with spraying platform A (31) and spraying uses spraying platform B (32), drive by two variable-frequency motors respectively, according to interior, the coating thickness of external coating and solidification rate are regulated the frequency of motor, spraying platform A (31) is connected with inside and outside application recovery plant (8) pipeline, interior spray gun is arranged at spraying platform B (32) top, be provided with static spray gun supporting frame (10) below it, in order to realize automatic spraying, adopt efficient, free of contamination intermediate frequency (250KW/1000 KHz) induction heater heats with the workpiece (6) that adapts to different tube diameters, and has been equipped with the induction coil of several different sizes; Spray guns are finished the inside and outside of pipeline and are inside and outsidely sprayed simultaneously in 12 meters long of the outer spray gun of the static electrification that employing is made up of 6 EPG automatic spray guns and three different tube diameters, the interior spray gun outer wall that with the air is auxiliary power has dynamic support frame (92), powder conveying pipe (95) is equipped with in rifle body (93) the inside, spout (91) is located at powder conveying pipe (95) one ends, and pressurized air reaches by powder delivery pump and comes the coating of control flow rate to add powder conveying pipe (95) from spray gun import (94) as the additional power of pressurized air.
Described inside and outside application recovery plant (8) is made up of outer spraying recovering device and interior application recovering device (82), outer application recovering device is a spraying powder room, application recovering device (82) is provided with six interior applications and reclaims cover (821) and six Pneumatic butterfly valves (822) in described, application recovery cover (821) is positioned at spraying platform A (31) top in the bucket shape, interior application is reclaimed cover (821) top and is equipped with as the Pneumatic butterfly valve (822) that reclaims electric switch, and cover (821) adjacent two synchronous workings with Pneumatic butterfly valve (822) are reclaimed in six interior applications of positioning control that workpiece (6) head arrived after COMPUTER DETECTION mechanism finished according to application.
Described rollgang is located on the frame (131), drive wheel (132) passes the bearing support (137) of transmission shaft (133) by both sides and is fixed on the dovetail guide plate (136), connect by roll adjustment leading screw (135) between two vertical dovetail guide plates (136), be connected with universal shaft coupling (134) with transmission shaft (133) between two horizontal dovetail guide plates (136) at the transmission shaft (133) on the dovetail guide plate (136), the transmission shaft (133) that is driven by balancing point wheel speed reducer (138) is dovetail shaped on the whole, the present invention adopts the identical rollgang of 8 segment structures, every section rollgang is by separately motor driving, each other by computer realization synchronization control speed change transmission work, maximal efficiency is utilized paint line, to finish the balance transmission to workpiece.
The described tube connecting device that turns over is by the tilting gear group (21) that is installed on the rollgang C (13), invest connecing steel unit (22) and transmitting bridge (23) formation of spraying platform A (31), tilting gear group (21) comprises two push pipe electric pushrods (211) and turns over pipe arrangement (212), described push pipe electric pushrod (211) vertical direction places below the rollgang C (13), its top extends between the drive wheel (132) on the rollgang C (13), with transmit below the bridge (23) to turn over pipe arrangement (212) hinged, this turns over pipe arrangement (212) the other end and is fixed on the following frame (131) of transmission bridge (23), and tilting gear group (21) is finished the task of workpiece (6) being transferred to spraying platform A (31) from rollgang (13); Connect air-leg (221) and tube connecting device (222) that steel unit (22) comprises two can regulate loads, extend between the drive wheel (132) that is positioned on the spraying platform A (31) at air-leg (221) vertical direction under the spraying platform A (31), its top is positioned at below tube connecting device (222) middle part that can turn up at the middle part, the other end of tube connecting device (222) is articulated in and transmits bridge (23), connect steel unit (22) and be used for dropping on spraying platform A (31) reposefully with roll across the workpiece (6) that comes from tilting gear group (21), its air-leg (221) substitutes the transmission tire.
The dynamic support frame (92) that the spray gun outer wall is had in described is the bikini structure, mainly by preloading spring (96), sliding ball (97), lever (98) and ball slip ring (99) are formed, folder spring (910) and chuck (911) are fixed on the rifle body (93) by flange (912), between chuck (911) and the housing (913) ball slip ring (99) is housed, use steel bushing (914 between the ball slip ring (99), 915) be separated by, trim ring (916) envelope ball slip ring (99) is between chuck (911) and housing (913), the angular lever (98) that has preloading spring (96) is fixed on the housing (913) by key-bolt (917), the end that preloading spring (96) band colludes colludes on the spring seat that is fixed in housing (913) (918), the end that lever (98) has a folder spring (919) by gland nut (920) with the end be equipped with can axially movable sliding ball (97) supporting rod (921) be tightened in, can be contained on the supporting rod (921) by straight pin (922) by axially movable ball (97), angle is 120 ° between each sliding ball (97), and this support can be realized pivoting simultaneously, move along axle.
The static spray gun supporting frame (10) that is installed in interior spray gun below is four electric pushrods, supports 12 meters long interior spray guns, when the spraying no workpiece of platform B (32) (6), supports interior spray gun with anti-bending or sagging by electric pushrod; When spraying platform B (32) has workpiece (6), electric pushrod falls automatically, interior spray gun is enclosed within workpiece (6) inside, rely on the activity supporting point of workpiece (6) to realize supporting, with the distance of spray in increasing, the synchronization motion of its electric pushrod is to be controlled by computer by the feedback signal of location of workpiece infrared senor.Described electric pushrod is available hydraulic or air-leg replacement also.
Rollgang H (18) is arranged at a side of interior spraying machine (42), and its integral layout becomes the counterclockwise 180 ° of corners of h shape to place.When realizing inside and outside single spraying, workpiece (6) directly is transported to spraying platform B (32) from inside and outside sandblast unit through rollgang H (18), connects steel unit (21,22) without turning over.
Working principle of the present invention is as follows:
Through interior sandblast unit workpiece (6) is carried out inner wall cleaning, or carry out the outer wall cleaning by outer ball blast unit.
As Fig. 1,2,6, shown in 7, with the workpiece after the outer wall passed examination (6) through rollgang A, B (11) (12) goes up to be sprayed to rollgang C (13), if do not have workpiece (6) on the spraying platform, tilting gear group (21) and connect steel unit (22) workpiece (6) is stirred in spraying platform A (31) from rollgang C (13) at a slow speed then, treat that workpiece (6) puts surely on spraying platform A (31), can oppositely start the motor of spraying platform by the frequency conversion regulator fast, and workpiece (6) is delivered to spraying platform B (32) from spraying platform A (31) with the highest speed, workpiece (6) is enclosed within on the interior spray gun, static during this time spray gun supporting frame (10) closes successively according to the logical of Detecting element position transducer, at this moment interior spray gun relies on the three-jaw of dynamic support frame (92) on it to support, and with the coaxial intermediate support of workpiece (6).
When workpiece (6) afterbody leaves intermediate frequency furnace (5), the spraying platform shuts down, start the spraying platform according to the size of workpiece (6) and the thickness of coating with different speed forwards after several seconds, workpiece (6) enters the interior rapid heating of intermediate frequency furnace (5) slowly, in opening simultaneously, the fluidisation valve of outer spray gun, when the head of workpiece (6) passes intermediate frequency furnace (5) and in arriving, during the position of outer spray gun, open the valve of inside and outside spray gun simultaneously, uniformly spray inside and outside carrying out, detect the position of leaving of workpiece around here by position transducer, spray gun in the static spray gun supporting frame (10) of spray gun supported in control promoted one by one prevents that it is sagging or crooked.
In the process of spraying, shown in Fig. 1,3,4,5,8, the head of looking workpiece (6) arrives the position of spraying platform A (31), by be arranged on position transducer on the rollgang control successively in six Pneumatic butterfly valves (822) of application recovering device follow the tracks of and reclaim dusting, wherein Pneumatic butterfly valve (8221,8222) just is in the position of opening when the spraying beginning, when the head of workpiece (6) arrives Pneumatic butterfly valve (8223), open Pneumatic butterfly valve (8223), close Pneumatic butterfly valve (8221).Open Pneumatic butterfly valve (8224) successively, close Pneumatic butterfly valve (8222)-open Pneumatic butterfly valve (8225), close Pneumatic butterfly valve (8223)-open Pneumatic butterfly valve (8226), close Pneumatic butterfly valve (8224) with the position of backsight workpiece (6).When the afterbody that detects workpiece (6) when the position transducer of intermediate frequency furnace (5) leaves intermediate frequency furnace (5), spraying finishes, close the Pneumatic butterfly valve (8226) of the rearmost position at place, reopen Pneumatic butterfly valve (8221,8222) then, wait for spraying next time, keep opening of two valves at any time; Close the fluidisation valve and the high-pressure electrostatic of inside and outside spray gun.
Spraying finishes, and stops to spray platform A (31), and the speed that will spray platform B (32) brings up to the highlyest, with the speed identical (50Hz) of rollgang, and starts rollgang D (14), enters to solidify section.When the head of workpiece (6) arrives the afterbody of rollgang D (14), be that position transducer on the conveyance conduit is when detecting its signal, stop to spray platform B (32), start rollgang E (15), arrive cooling water curtain (71) and enter cooling section until workpiece (6).
As shown in Figure 1, when the head of application workpiece (6) arrives the afterbody of rollgang D (14), open the valve of cooling water curtain (71), when workpiece (6) afterbody leaves cooling water curtain (71), close cooling water curtain (71), when the position transducer of the head of workpiece (6) through being arranged on rollgang E (15) detects the afterbody that arrives rollgang E (15), open the valve of cooling water curtain (72), simultaneously, start rollgang F (16), when the afterbody of workpiece (6) leaves cooling water curtain (72), close the valve of cooling water curtain (72), enter Strain During Finishing Stage.
When workpiece (6) head arrives the afterbody of rollgang F (16), start rollgang G (17), stop rollgang E (15), when workpiece (6) by a sponge sucks in water device, the moisture on the workpiece is siphoned away, for the detection of follow-up coating is prepared.
The present invention adopts down the two level computer control system, realizes the optimal control of technology by described equipment.Production process can realize full-automatic, semi-automatic and manual three kinds of control modes by requirement of engineering.
Claims (7)
1. full-automatic internal and external coating method for epoxy resin jacketed underground pipeline, comprise that the powder melts that is coated with is attached to the workpiece surface and two processes of solidification intensity that are heated to regulation of expection, it is characterized in that: preheating and curing are carried out simultaneously, when the head of workpiece (6) passes intermediate frequency furnace (5) and arrives the position of inside and outside spray gun, open the valve of inside and outside spray gun simultaneously, uniformly spray inside and outside carrying out, realize the curing fully of coating by the curing rate of regulating clinkery epoxy powder and the waste heat that relies on workpiece self.
2. production line that is exclusively used in full-automatic internal and external coating method for epoxy resin jacketed underground pipeline, sandblast unit, outer ball blast unit, rollgang in comprising, turn over tube connecting device, spraying platform, spraying inside and outside unit, cooling water curtain and inside and outside application recovery plant (8), it is characterized in that:
Rollgang A, the B that is used to transmit workpiece (6) and sets gradually, C (11,12,13) laterally are connected with spraying platform A (31) through turning over tube connecting device, side at spraying platform A (31) is sequentially with external spraying machine group (41), intermediate frequency furnace (5), spraying platform B (32) and internal spraying machine group (42), the opposite side of spraying platform A (31) is by rollgang D, E (14,15) and the alternate setting of cooling water curtain (71,72), follow-up rollgang F, the G (16,17) of being provided with of cooling water curtain (72);
Described spraying platform A (31) is connected with inside and outside application recovery plant (8) pipeline, and interior spray gun is arranged at spraying platform B (32) top, is provided with static spray gun supporting frame (10) below the interior spray gun; The interior spray gun outer wall that with the air is auxiliary power has dynamic support frame (92), powder conveying pipe (95) is equipped with in rifle body (93) the inside, spout (91) is located at powder conveying pipe (95) one ends, and pressurized air reaches by electric powder pump and comes the coating of control flow rate to add powder conveying pipe (95) from spray gun import (94) as the additional power of pressurized air;
Described inside and outside application recovery plant (8) is made up of outer spraying recovering device, interior application recovering device (82), outer application recovering device is a spraying powder room, cover (821) and Pneumatic butterfly valve (822) were reclaimed in application in application recovering device (82) was provided with in described, the interior application of bucket shape is reclaimed cover (821) and is positioned at spraying platform A (31) top, and be equipped with as the Pneumatic butterfly valve (822) that reclaims electric switch at interior application recovery cover (821) top.
3. according to the described production line of claim 2, it is characterized in that: described rollgang is located on the frame (131), drive wheel (132) passes the bearing support (137) of transmission shaft (133) by both sides and is fixed on the dovetail guide plate (136), connect by roll adjustment leading screw (135) between two vertical dovetail guide plates (136), be connected with universal shaft coupling (134) with transmission shaft (133) between two horizontal dovetail guide plates (136) at the transmission shaft (133) on the dovetail guide plate (136), the transmission shaft (133) that is driven by balancing point wheel speed reducer (138) is dovetail shaped on the whole.
4. according to the described production line of claim 2, it is characterized in that: turn over tube connecting device by the tilting gear group (21) that is installed on the rollgang C (13), invest connecing steel unit (22) and transmitting bridge (23) formation of spraying platform A (31), tilting gear group (21) comprises push pipe electric pushrod (211) and turns over pipe arrangement (212), described push pipe electric pushrod (211) vertical direction places below the rollgang C (13), its top extends between the drive wheel (132) on the rollgang C (13), with transmit below the bridge (23) to turn over pipe arrangement (212) hinged, this turns over pipe arrangement (212) the other end and is fixed on the frame (131) that transmits below the bridge (23); Connect air-leg (221) and tube connecting device (222) that steel unit (22) comprises the can regulate load, extend between the drive wheel (132) that is positioned on the spraying platform A (31) at air-leg (221) vertical direction under the spraying platform A (31), its top is positioned at below tube connecting device (222) middle part that can turn up at the middle part, and the other end of tube connecting device (222) is articulated in and transmits bridge (23).
5. according to the described production line of claim 2, it is characterized in that: the dynamic support frame (92) that the spray gun outer wall is had in described is the bikini structure, mainly by preloading spring (96), sliding ball (97), lever (98) and ball slip ring (99) are formed, folder spring (910) and chuck (911) are fixed on the rifle body (93) by flange (912), between chuck (911) and the housing (913) ball slip ring (99) is housed, trim ring (916) envelope ball slip ring (99) is between chuck (911) and housing (913), the angular lever (98) that has preloading spring (96) is fixed on the housing (913), the end that preloading spring (96) band colludes colludes on the spring seat that is fixed in housing (913) (918), the end that lever (98) has a folder spring (919) with the end be equipped with can axially movable sliding ball (97) supporting rod (921) be tightened in, angle is 120 ° between each cunning ball (97).
6. according to the described production line of claim 2, it is characterized in that: in being installed in spray gun below, be used to support in the static spray gun supporting frame (10) of spray gun be electric pushrod.
7. according to the described production line of claim 2, it is characterized in that: rollgang H (18) is arranged at a side of interior spraying machine (42), and its integral layout becomes the counterclockwise 180 ° of corners of h shape to place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98121010A CN1081310C (en) | 1998-11-25 | 1998-11-25 | Full-automatic internal and external coating method for epoxy resin jacketed underground pipeline and its production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98121010A CN1081310C (en) | 1998-11-25 | 1998-11-25 | Full-automatic internal and external coating method for epoxy resin jacketed underground pipeline and its production line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1254808A CN1254808A (en) | 2000-05-31 |
| CN1081310C true CN1081310C (en) | 2002-03-20 |
Family
ID=5226937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98121010A Expired - Fee Related CN1081310C (en) | 1998-11-25 | 1998-11-25 | Full-automatic internal and external coating method for epoxy resin jacketed underground pipeline and its production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1081310C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209362A (en) * | 2013-06-04 | 2014-12-17 | 天源环保有限公司 | Composite pipe automatic production line control system |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978334A (en) * | 2011-09-05 | 2013-03-20 | 鞍钢集团工程技术有限公司 | Auxiliary device used for oxygen lance maintenance pressure test |
| CN102505804A (en) * | 2011-11-11 | 2012-06-20 | 江阴市华金交通建材有限公司 | Manufacturing method of epoxy resin-coated hoop for building |
| CN104096720A (en) * | 2013-04-03 | 2014-10-15 | 天源环保有限公司 | Clad pipe automatic-production line |
| CN105880083A (en) * | 2014-12-12 | 2016-08-24 | 蚌埠市志诚涂装设备科技有限公司 | Spraying production line for small-caliber steel tubes |
| CN104959917A (en) * | 2015-06-17 | 2015-10-07 | 浙江荣城涂装机械有限公司 | Shot-blasting and spraying machine for steel |
| CN106733383B (en) * | 2017-03-10 | 2018-06-22 | 宁波市盛丰钢塑管制造厂 | Tubing spraying inside and outside production equipment and tubing production method |
| CN106994401A (en) * | 2017-06-07 | 2017-08-01 | 内蒙古君诚兴业管道有限责任公司 | A kind of steel pipe electrostatic coating machine and its painting method |
| CN111097621A (en) * | 2019-11-07 | 2020-05-05 | 柳州钢铁股份有限公司 | Rust-proof and demisting device for bars |
| CN110978360B (en) * | 2020-03-04 | 2020-06-12 | 潍坊东方钢管有限公司 | Continuous production device for external plastic layer of pipe with different diameters |
| CN112517343B (en) * | 2020-11-30 | 2022-05-17 | 宁波龙元盛宏生态建设工程有限公司 | Automatic coating and sintering epoxy powder anticorrosion process suitable for pipe jacking operation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116579A (en) * | 1994-09-13 | 1996-02-14 | 张凤焘 | Process and apparatus for lining of internal surface of metal pipe by dip coating of plastic |
-
1998
- 1998-11-25 CN CN98121010A patent/CN1081310C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116579A (en) * | 1994-09-13 | 1996-02-14 | 张凤焘 | Process and apparatus for lining of internal surface of metal pipe by dip coating of plastic |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209362A (en) * | 2013-06-04 | 2014-12-17 | 天源环保有限公司 | Composite pipe automatic production line control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1254808A (en) | 2000-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1081310C (en) | Full-automatic internal and external coating method for epoxy resin jacketed underground pipeline and its production line | |
| CN110538750B (en) | Pipe diameter self-adaptation inner wall spraying equipment to heavy-calibre steel pipe | |
| CN101255942B (en) | Automatic spraying machine for on-site overhaul of pipeline | |
| CN111589626B (en) | Pipeline internal corrosion prevention device | |
| CN103447676B (en) | A kind of pipeline flash butt welding seam plasma scarfing cinder and heat-treating machine | |
| CN201508106U (en) | Rotary calciner for producing alumina | |
| CN113369303B (en) | System and method for automatic vacuum coating and hot rolling of composite plate | |
| CN201458220U (en) | Angle adjusting device on conveying equipment | |
| CN107402123A (en) | A kind of automation equipment for pipeline spray mark examination water processing | |
| CN201746576U (en) | Miniature steel shot feeding circulator and numerical control metal finishing machine employing same | |
| WO2009138031A1 (en) | Multiple-tube simultaneous derusting and dusting system | |
| CN206881995U (en) | A kind of material colour code spray equipment of sulfur resistive resistant to hydrogen bend pipe tube material | |
| CN204412581U (en) | A kind of anti-corrosive steel tube is automatically coated with coating line fast | |
| CN203778231U (en) | Device for coating fusion bonded epoxy powder coating anticorrosive layers on multiple pipelines simultaneously | |
| CN109504964A (en) | A kind of bearing ring complex intensifying intelligence production line | |
| CN217195117U (en) | Cogeneration conveyor and energy storage building integration system thereof | |
| CN209633594U (en) | A kind of continuously shaped protective layer device of pipe surface | |
| CN111167689B (en) | Application method of steel pipe inside and outside plastic dipping production system | |
| CN107253403A (en) | A kind of automatic nameplate spraying device for pipeline processing | |
| CN203439686U (en) | Single-working position stepping tube transferring device | |
| CN207188057U (en) | A kind of paint feeding apparatus of vehicle spray painting line | |
| CN2231261Y (en) | Horizontal three-dimensional motion multiple arc coating equipment | |
| CN201522195U (en) | Two-section composite ceramsite sintering device | |
| CN220959520U (en) | Internal heating rotary kiln for sintering lithium battery powder | |
| CN111068990B (en) | Inside and outside plastic-coated steel pipe production system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |