CN1401438A - Apparatus and process for spraying inner wall of electric heating water supply steel-plastic composite pipe - Google Patents
Apparatus and process for spraying inner wall of electric heating water supply steel-plastic composite pipe Download PDFInfo
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- CN1401438A CN1401438A CN 02143490 CN02143490A CN1401438A CN 1401438 A CN1401438 A CN 1401438A CN 02143490 CN02143490 CN 02143490 CN 02143490 A CN02143490 A CN 02143490A CN 1401438 A CN1401438 A CN 1401438A
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Abstract
An electrothermal apparatus for spraying plastic powder onto inner surface of water pipe made of steel is composed of a feeder, an electrothermal tank, a powder sprayer, levelling tank, levelling machine and cooling frame. Its process includes removing dust, feeding, heating, spraying plastics, levelling, levelling further and cooling. The resultant composite pipe has features of high strength and high resistance to corrosion.
Description
Technical field
The present invention relates to a kind of electrothermal feedwater steel-plastics composite pipe inner-wall spraying equipment and spraying coating process.Be applicable to running water pipe inner-wall spraying plastics.
Background technology
The water pipe that present China generally adopts all is the metal-plated zinc pipe basically, advantage is to use the life-span long, the intensity height, get rusty easily on its shortcoming, and zinc causes adverse effect, Recent study to develop some reinforced plastics water pipes as the carrier pipe of drinking water to people's cognition for a long time, to overcome the drawback that metallic water pipe exists, but the water pipe of pure plastics, insufficient strength is easily aging.Pin is tied the situation of stating, Chinese patent ZL99102643.8 discloses a kind of " metal-plastic composite water pipe and manufacturing process thereof ", this water pipe comprises pipe in metal outer pipe and the flexible plastic, the external diameter big 0 of the interior pipe of internal diameter of outer tube is to 0.5mm, is connected as a whole between outer tube and the interior pipe with adhesive.This water pipe has the advantage that the water-fast burn into of inwall is simple in structure, cost is low.But the water pipe of this disclosure of the Invention relates to metal outer pipe, plastic inner pipe and three key elements of adhesive, and complex manufacturing technology, cost are relatively still higher, are difficult for large-scale production.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of electrothermal feedwater steel-plastics composite pipe inner-wall spraying equipment and spraying coating process are provided, and this water pipe had both kept the high-strength characteristic of metal tube, and had characteristics corrosion-resistant, safety and sanitation behind the inner-wall spraying plastics again; Simple, the suitable large-scale production processing in enormous quantities of production technology, low cost of manufacture, plastics and metal adhesion-tight, inner wall smooth, difficult aging.
The technical solution adopted in the present invention is: electrothermal feedwater steel-plastics composite pipe inner-wall spraying equipment, it is characterized in that it comprises feeder, electrocaloric effect, duster, levelling case, leveling machine, cooling frame, the band tooth conveyer chain that feeder is provided with the charging slideway and is driven by motor a; The electrocaloric effect middle part is provided with the feeding table at 8-10 ° of inclination angle, and heater element is equipped with in the below of feeding table, and the top of front and back slideway is provided with overhead door, and electric control panel is equipped with on top; Respectively there is motor b at the duster two ends, and the anchor clamps a by the caliber size adjustment is equipped with in its output, and end anchor clamps connect the fluidisation case, and other end anchor clamps connect air blast a; The feeding table of levelling case has 8-10 ° inclination angle equally, and heater element is equipped with in the feeding table below, and there is overhead door forward and backward slideway top; Motor c is equipped with at the leveling machine two ends, and the output of motor is equipped with anchor clamps b, and end anchor clamps connect gas receiver.
Conduit jacking is equipped with in the exit of described electrocaloric effect feeding table, comprises the block of discharging place, is being provided with push rod and cylinder below the nearest water pipe of block.
Be provided with between the described duster two anchor clamps a and slidably support a, air blast a and motor b are provided with filter screen in the fluidisation case on same horizontal plane, and fluidisation case bottom connects gas receiver.
Be provided with between the described leveling machine two anchor clamps b and slidably support b.
Heater element in described electrocaloric effect and the levelling case is a quartz ampoule, and grouping is provided with; Heater element also can be the PTC ceramic heating plate, and grouping is provided with.
The spraying coating process of electrothermal feedwater steel-plastics composite pipe inwall is:
1) blows away steel pipe to be sprayed (water pipe) interior foreign particle and dust by gas receiver and used for air compressor 6-8 atmospheric compressed air, make the steel pipe inwall clean as far as possible, successively the steel pipe time is in accordance with regulations sent in the electrocaloric effect by autoloader then and heated;
2) electric heating the temperature inside the box is controlled between 190-210 ℃, the temperature inside the box is consistent as far as possible, so that steel pipe is heated evenly, steel pipe is subjected to gravity to front slide on the feeding table that tilts, conduit jacking ejects a water pipe at every turn only, ejects one and replenishes one by feeder and reach the quantity-produced purpose, and the steel pipe number of heating can not be less than 30 in the case, just the heated time of steel pipe can not be less than 15 minutes, can regulate the working time automatically according to the steel pipe size;
3) steel pipe that will eject is automatically sent in the duster, the synchronous equidirectional rotation of the motor b at duster two ends, rotating speed is about 260 rev/mins, the steel pipe that is heated (190-200 ℃) is installed between the anchor clamps a of motor output end automatically retractable and rotates with motor, start the fluidisation case by gas receiver and air compressor machine immediately, make polyethylene powders become suspension, it is 3-4 rice that there is an air quantity motor outer end, other end
3/ minute, total head is the air blast a of 15000-20000 handkerchief, it also evenly sticks to the interior polyethylene powders of fluidisation case rapidly and makes its plasticizing on the tube wall by steel pipe, the time length that the fluidisation case is opened can be controlled the thickness of plastic-blasting, generally the time of dusting is no more than 15 seconds, sends into automatically then and continues plasticizing in the levelling case;
4) temperature in the levelling case is controlled at 160-180 ℃, heats and sends into leveling machine automatically after 10-15 minute;
5) structure of leveling machine is basic identical with duster, just motor c rotating speed is faster, be more than 600 rev/mins, to increase the centrifugal force of steel pipe inwall, make the abundant levelling of plasticizing steel pipe, flow time is 25-35 second, and end anchor clamps connect gas receiver and air compressor machine, in levelling, in pipe, send into 3-4 atmospheric compressed air, further strengthen the adhesive force of vinyon and tube wall;
6) steel pipe behind the levelling is sent into the cooling frame cooling automatically.
The invention has the beneficial effects as follows: this spraying equipment accomplishs without any letup a whole set of technological process in an equipment, is suitable for producing continuously in enormous quantities, adopts electrical heating, compact conformation, be heated evenly, energy consumption is little, pollution-free, production cost is low; Plastics and metal adhesion-tight, inner wall smooth, difficult aging; Water pipe after the processing had both kept the high-strength characteristic of metal tube, had characteristics corrosion-resistant, safety and sanitation again.
Description of drawings
Fig. 1 is that the structure of spraying equipment of the present invention is always schemed.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the Facad structure figure of duster among Fig. 1.
Fig. 4 is the Facad structure figure of leveling machine among Fig. 1.
The specific embodiment
As shown in the figure, this spraying equipment comprises feeder 1, electrocaloric effect 6, duster 29, levelling case 14, leveling machine 30, cooling frame 16.Autoloader 1 is provided with turnover slideway 2, is the toothed conveyer chain 3 that is driven by motor a11 between the charging slideway, the import of discharging opening slideway overlap joint electrocaloric effect.When steel pipe enters, electric control panel 5 control overhead doors 4 rise, allow steel pipe roll into electrocaloric effect 6, electrocaloric effect is a rectangle steelframe case, skin is incubated by silicate fiber, be provided with the feeding table 28 at 8-10 ° of inclination angle in the case, the inclination certain angle is in order to allow steel pipe landing automatically under the effect of gravity, but gradient can not be greater than 10 °, otherwise can cause going out conduit jacking too greatly because of slip inertia, conduit jacking comprises the block 7 in exit, is being provided with push rod 8 and cylinder 9 below the nearest steel pipe of block, provide source of the gas by gas receiver 17 and air compressor machine 18, feeding table below certain distance is equipped with heater element 10, and this routine heater element is 1000 watts every 49 of quartz ampoules, is subjected to heat request to be divided into 7 groups according to steel pipe, every group 7, between 190-210 ℃, the top of front and back slideway is equipped with overhead door 4 to assurance the temperature inside the box uniformly, and overhead door also is pneumatic, provide source of the gas by gas receiver 17 and air compressor machine 18, it is to escape in order to reduce heat as far as possible that overhead door is set.Respectively there is motor b13 at duster 29 two ends, anchor clamps a21 is equipped with in its output, be provided with between the two anchor clamps a21 and slidably support a22, in order to avoid steel pipe is because of gravity deformation, end anchor clamps connect fluidisation case 12, are provided with filter screen 23 in the fluidisation case, fluidisation case bottom connects gas receiver 17 and air compressor machine 18, other end anchor clamps are connected to air blast a19, air blast a19 and motor b13 at grade, support 20 is arranged at air blast a bottom.Levelling case 14 feeding tables have 8-10 ° inclination angle equally, and quartz ampoule 10 also is equipped with in the below, and quantity only needs 12, and overhead door 4 also is equipped with in the forward and backward slideway of levelling case top.Motor c15 is equipped with at leveling machine 30 two ends, and the output of motor is equipped with anchor clamps b25, is provided with between the two anchor clamps b25 and slidably supports b26, and end anchor clamps connect gas receiver 17 and air compressor machine 18.
The exercises of this equipment are controlled by pneumatic element.
The spraying coating process of electrothermal feedwater steel-plastics composite pipe inwall, its technological process is:
1) in order to guarantee coating quality, must make the steel pipe inwall clean as far as possible, with gas receiver 17 and air compressor machine 18 6-8 atmospheric compressed air is blown away steel pipe to be sprayed (water pipe) interior foreign particle and dust, under the drive of motor a11, successively sent into heating in the electrocaloric effect 6 the steel pipe time in accordance with regulations by conveyer chain 3 then;
2) electric heating the temperature inside the box is controlled between 190-210 ℃, the temperature inside the box is consistent as far as possible, so that steel pipe is heated evenly, steel pipe is subjected to gravity to front slide on the feeding table 28 that tilts, conduit jacking ejects one (push rod 8 upwards ejects and withdrawal automatically immediately) and replenishes one to reach the quantity-produced purpose by feeder under the effect of cylinder 9, the steel pipe number of heating can not be less than 30 in the case, and just the heated time of steel pipe can not be less than 15 minutes;
3) steel pipe that will eject is automatically sent in the duster 29, the synchronous equidirectional rotation of the motor b13 at duster two ends, rotating speed is about 260 rev/mins, the steel pipe that is heated (190-200 ℃) is installed between the anchor clamps a21 of motor output end automatically retractable and rotates with motor, start fluidisation case 12 by gas receiver 17 and air compressor machine 18 immediately, make polyethylene powders become suspension, it is 3-4 rice that there is an air quantity motor outer end, other end
3/ minute, total head is the air blast a19 of 15000-20000 handkerchief, it also evenly sticks to the interior polyethylene powders of fluidisation case rapidly and makes its plasticizing on the tube wall by steel pipe, the time length that the fluidisation case starts can be controlled the thickness of plastic-blasting, generally the time of dusting is no more than 15 seconds, sends into automatically then and continues plasticizing in the levelling case 14;
4) temperature in the levelling case 14 is controlled at 160-180 ℃, heats and sends into leveling machine 30 automatically after 10-15 minute;
5) structure of leveling machine 30 is basic identical with duster, just motor c15 rotating speed is faster, be more than 600 rev/mins, to increase the centrifugal force of steel pipe inwall, make the abundant levelling of plasticizing steel pipe, flow time is 25-35 second, and end anchor clamps are connected to gas receiver 17 and air compressor machine 18, in levelling, in pipe, send into 3-4 atmospheric compressed air, further strengthen the adhesive force of vinyon and tube wall;
6) steel pipe behind the levelling is sent into cooling frame 16 coolings automatically, and the type of cooling can be used the chain transmission, and effect is rather good, and evenly cooling also can directly slide in the baling press from slideway and pack.
Claims (7)
1. electrothermal feedwater steel-plastics composite pipe inner-wall spraying equipment, it is characterized in that: it comprises feeder (1), electrocaloric effect (6), duster (29), levelling case (14), leveling machine (30), cooling frame (16), the band tooth conveyer chain (3) that feeder (1) is provided with charging slideway (2) and is driven by motor a (11); Be provided with the feeding table (28) at 8-10 ° of inclination angle in the electrocaloric effect (6), heater element (10) is equipped with in the below of feeding table, and the top of front and back slideway is provided with overhead door (4), and electric control panel (5) is equipped with on top; Respectively there is motor b (13) at duster (29) two ends, and the anchor clamps a (21) by the caliber size adjustment is equipped with in its output, and end anchor clamps connect fluidisation case (12), and other end anchor clamps connect air blast a (19); The feeding table of levelling case (14) has 8-10 ° inclination angle equally, and heater element (10) is equipped with in the feeding table below, and there is overhead door (4) forward and backward slideway top; Motor c (15) is equipped with at leveling machine (30) two ends, and the output of motor is equipped with anchor clamps b (25), and end anchor clamps connect gas receiver (17).
2. electrothermal feedwater steel-plastics composite pipe inner-wall spraying equipment according to claim 1, it is characterized in that: conduit jacking is equipped with in the exit of described electrocaloric effect (6) feeding table (28), the block (7) that comprises discharging place is being provided with push rod (8) and cylinder (9) below the nearest water pipe of block.
3. electrothermal feedwater steel-plastics composite pipe inner-wall spraying equipment according to claim 1, it is characterized in that: be provided with between described duster (29) the two anchor clamps a (21) and slidably support a (22), air blast a (19) and motor b (13) are on same horizontal plane, be provided with filter screen (23) in the fluidisation case, fluidisation case bottom connects gas receiver (17).
4. electrothermal feedwater steel-plastics composite pipe inner-wall spraying equipment according to claim 1 is characterized in that: be provided with between described leveling machine (30) the two anchor clamps b (25) and slidably support b (26).
5. according to claim 1 or 2 or 3 or 4 described electrothermal feedwater steel-plastics composite pipe inner-wall spraying equipment, it is characterized in that: the heater element in described electrocaloric effect (6) and the levelling case (14) is a quartz ampoule, and grouping is provided with.
6. according to claim 1 or 2 or 3 or 4 described electrothermal feedwater steel-plastics composite pipe inner-wall spraying equipment, it is characterized in that: the heater element in described electrocaloric effect (6) and the levelling case (14) is the PTC ceramic heating plate, and grouping is provided with.
7. the spraying coating process of electrothermal feedwater steel-plastics composite pipe inwall, its technological process is:
1) blows away steel pipe to be sprayed (water pipe) interior foreign particle and dust by gas receiver (17) and air compressor machine (18) with 6-8 atmospheric compressed air, make the steel pipe inwall clean as far as possible, successively sent into heating in the electrocaloric effect (6) the steel pipe time in accordance with regulations by autoloader (1) then;
2) electric heating the temperature inside the box is controlled between 190-210 ℃, the temperature inside the box is consistent as far as possible, so that steel pipe is heated evenly, steel pipe is subjected to gravity to front slide on the feeding table (28) that tilts, conduit jacking ejects a water pipe at every turn only, ejects one and replenishes one by feeder and reach the quantity-produced purpose, and the steel pipe number of heating can not be less than 30 in the case, just the heated time of steel pipe can not be less than 15 minutes, can regulate the working time automatically according to the steel pipe size;
3) steel pipe that will eject is automatically sent in the duster (29), the synchronous equidirectional rotation of motor b (13) at duster two ends, rotating speed is about 260 rev/mins, the steel pipe that is heated (190-200 ℃) is installed between the anchor clamps a (21) of motor output end automatically retractable and rotates with motor, start fluidisation case (12) by gas receiver (17) and air compressor machine (18) immediately, make polyethylene powders become suspension, it is the 3-4 m3/min that there is an air quantity motor outer end, other end, total head is the air blast a (19) of 15000-20000 handkerchief, it also evenly sticks to the interior polyethylene powders of fluidisation case rapidly and makes its plasticizing on the tube wall by steel pipe, the time length that the fluidisation case is opened can be controlled the thickness of plastic-blasting, generally the time of dusting is no more than 15 seconds, sends into automatically then and continues plasticizing in the levelling case (14);
4) temperature in the levelling case (14) is controlled at 160-180 ℃, heats and sends into leveling machine (30) after 10-15 minute automatically;
5) structure of leveling machine (30) is basic identical with duster, just motor c (15) rotating speed is faster, be more than 600 rev/mins, to increase the centrifugal force of steel pipe inwall, make the abundant levelling of plasticizing steel pipe, flow time is 25-35 second, and end anchor clamps connect gas receiver (17) and air compressor machine (18), in levelling, in pipe, send into 3-4 atmospheric compressed air, further strengthen the adhesive force of vinyon and tube wall;
6) steel pipe behind the levelling is sent into cooling frame (16) cooling automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02143490 CN1208138C (en) | 2002-09-30 | 2002-09-30 | Apparatus and process for spraying inner wall of electric heating water supply steel-plastic composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02143490 CN1208138C (en) | 2002-09-30 | 2002-09-30 | Apparatus and process for spraying inner wall of electric heating water supply steel-plastic composite pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1401438A true CN1401438A (en) | 2003-03-12 |
| CN1208138C CN1208138C (en) | 2005-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02143490 Expired - Fee Related CN1208138C (en) | 2002-09-30 | 2002-09-30 | Apparatus and process for spraying inner wall of electric heating water supply steel-plastic composite pipe |
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| CN (1) | CN1208138C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296143C (en) * | 2004-01-13 | 2007-01-24 | 姜宜川 | Electric heating type inside and outside spraying equipment and process for steel-plastic composite pipe |
| CN1320964C (en) * | 2004-10-21 | 2007-06-13 | 于志诚 | Automatic color spraying technique for PVC Shaped section |
| CN102500525A (en) * | 2011-09-30 | 2012-06-20 | 华南理工大学 | Spray coating method of anti-corrosive paint on inner wall of fire tube |
| CN108214020A (en) * | 2017-12-27 | 2018-06-29 | 张洁如 | A kind of revolving body workpieces processing unit (plant) |
| CN109368168A (en) * | 2018-10-11 | 2019-02-22 | 宁波雷奥自动化设备有限公司 | Bushing outer tube automatically in glue production line send guard system |
-
2002
- 2002-09-30 CN CN 02143490 patent/CN1208138C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296143C (en) * | 2004-01-13 | 2007-01-24 | 姜宜川 | Electric heating type inside and outside spraying equipment and process for steel-plastic composite pipe |
| CN1320964C (en) * | 2004-10-21 | 2007-06-13 | 于志诚 | Automatic color spraying technique for PVC Shaped section |
| CN102500525A (en) * | 2011-09-30 | 2012-06-20 | 华南理工大学 | Spray coating method of anti-corrosive paint on inner wall of fire tube |
| CN108214020A (en) * | 2017-12-27 | 2018-06-29 | 张洁如 | A kind of revolving body workpieces processing unit (plant) |
| CN109368168A (en) * | 2018-10-11 | 2019-02-22 | 宁波雷奥自动化设备有限公司 | Bushing outer tube automatically in glue production line send guard system |
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| Publication number | Publication date |
|---|---|
| CN1208138C (en) | 2005-06-29 |
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