CN101254647A - Method of container inside lining anti-corrosive fluoroplastic plate - Google Patents
Method of container inside lining anti-corrosive fluoroplastic plate Download PDFInfo
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- CN101254647A CN101254647A CNA2008100234511A CN200810023451A CN101254647A CN 101254647 A CN101254647 A CN 101254647A CN A2008100234511 A CNA2008100234511 A CN A2008100234511A CN 200810023451 A CN200810023451 A CN 200810023451A CN 101254647 A CN101254647 A CN 101254647A
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Abstract
The invention provides a method for manufacturing an energy-saving and environmental-friendly anti-corrosion fluorine plastic plate with convenient manufacture and very low energy consumption used for container liner. The method comprises the following steps: preparing a plurality of anti-corrosion fluorine plastic plates capable of being spliced to an inner cavity shape of a container; attaching the anti-corrosion fluorine plastic plates on one side of the inner cavity of the container, heating to molten state, and adhering a glass fiber cloth; applying a polymer bonding agent on the surface of the inner cavity of the container; bonding the side of the anti-corrosion fluorine plastic plate where the glass fiber cloth is adhered with the surface of the inner cavity of the container; splicing the plurality of bonded anti-corrosion fluorine plastic plates to the shape of the inner cavity of the container; and hot-melt welding the seams of adjacent anti-corrosion fluorine plastic plates by a welding machine and welding wires.
Description
Technical field
The present invention relates to the method for container inside lining anti-corrosive fluoroplastic plate, especially the method for large chemical equipment inside lining anti-corrosive fluoroplastic plate.
Background technology
Most equipment and container need be anticorrosive in chemical industry, and people select the inside lining anti-corrosive material of polytetrafluoroethylene (PTFE) material as equipment and container for use, and the method for liner is selected methods such as hot roller coating and thermal sintering moulding for use.But these methods are because the specification of equipment size of hot roller coating, thermal sintering is limited, can only do the equipment of some diameters below 3 meters or the liner of container, just can't realize liner fluorine material antiseptic for some main equipments and container, pipeline etc., and adopt the manufacturing equipment energy consumption of hot roller coating and thermal sintering higher, not energy-conservation, can not be fit to the energy-conservation and environmental protection situation needs in the world of current energy-saving and emission-reduction.
Summary of the invention
The purpose of this invention is to provide a kind of energy-conserving and environment-protective, easy to make, the method for the container inside lining anti-corrosive fluoroplastic plate that energy consumption is extremely low.
The method of container inside lining anti-corrosive fluoroplastic plate is characterized in that: it may further comprise the steps,
A. make the polylith anti-corrosive fluoroplastic plate, the polylith anti-corrosive fluoroplastic plate requires to be spliced into the container intracavity shape;
The one side that b. anti-corrosive fluoroplastic plate need be attached to container intracavity is heated to molten condition, pastes the upper glass fiber cloth;
C. be coated with polymer binder on the surface of container intracavity;
D. the one side that glass fabric is arranged of anti-corrosive fluoroplastic plate is fitted with the container intracavity surface; Polylith anti-corrosive fluoroplastic plate after the applying is spliced into the container intracavity shape;
E. the seam of adjacent anti-corrosive fluoroplastic plate is carried out sweat soldering with welding machine, welding wire.
In the said method, the glass fabric effect is to play transitional function.Because fluoroplastic plate has not viscosity, can not directly be bonded in inner surface of container, so adopt glass fabric to carry out transition.In the said method, polymer binder belongs to existing material, and it is the adhesive made from the multiple auxiliary agent of acroleic acid macromolecular, cohesive force is strong, water resistance is good, and preferably selects the thermosetting polymer adhesive for use, as amino resins adhesive, aerodux, epobond epoxyn etc.
The present invention adopt means such as stickup, welding with the fluoroplastic plate liner at container intracavity, abandoned methods such as hot roller coating, thermal sintering moulding, energy-conserving and environment-protective, easy to make, energy consumption is extremely low; The method that has solved traditional container inside lining anti-corrosive fluoroplastic plate is subjected to the influence of production equipment, specification, can not make the shortcoming of large-scale and super-huge anticorrosion equipment and container, and that this method is particularly useful for is large-scale, the inside lining anti-corrosive of large equipment and container.
In order to prevent leak source to occur in the welding, behind the step e in said method, best f in steps also: hunt leak with the electric spark leak detector butt welded seam, as if there being leak source to carry out repair welding with welding machine and welding wire again.In order to ensure the detection quality, electric spark leak detector is the high-voltage pulse formula, and playing output voltage is 5-10KV.Electric spark leak detector belongs to prior art, no longer describes.
In the said method, fluoroplastic plate can be hot melt fluoroplastic plates such as PFA, PTFE, PVDF, ETFE, ECTFE.
PFA is the meltability polytetrafluoroethylene (PTFE), and PTFE is a polytetrafluoroethylene (PTFE), and PVDF is a polyvinylidene fluoride, and ETFE is an ethylene-tetrafluoroethylene copolymer, and ECTFE is an ethylene-chlorotrifluoro-ethylene copolymer, and they all belong to current material.
For the quality that guarantees to weld, in the said method, the composition of fluoroplastics welding wire is identical with the composition of fluoroplastic plate.
For the quality that guarantees to weld, in the said method, during welding, the position of the required welding of fluoroplastic plate is heated to 260 ℃ to 350 ℃.
For the quality that guarantees to fit in anti-corrosive fluoroplastic plate and container intracavity surface, in the said method, after anti-corrosive fluoroplastic plate had the one side of glass fabric to fit with the container intracavity surface, no air became vacuum state between anti-corrosive fluoroplastic plate and the container intracavity surface.
For the quality that guarantees to weld, in the said method, during welding, select the hot blast Welding plate for use.Welding plate belongs to existing equipment.For the present invention, owing to be the welding of fluoroplastic plate, so easily select the hot blast Welding plate for use.
Manufacture method of the present invention now can be used for large-scale, super-huge chemical industry equipment, as welding lining fluorine material in reaction tower, reactor, retort, storage tank, the pipeline etc., the liner welding anti-corrosion material that also can be used for the vague generalization construction equipment, and non-environmental-pollution in the production process, energy consumption is extremely low.
Description of drawings
Fig. 1 is the partial sectional view by the hydrogen chloride surge tank of the present invention's preparation.
The specific embodiment
Embodiment:
The method of hydrogen chloride surge tank inside lining anti-corrosive fluoroplastic plate in the polysilicon project, it comprises following process steps:
1) makes hydrogen chloride surge tank 1 by figure.
2) surge tank 1 inner chamber that processes is polished cleaning, and clean up, evenly coat polymer binder 2 after cleaning up with organic solvent.The PX800CS epoxyn that polymer binder selects for use Britain Robnor resin company to produce.
3) press the surge tank cavity shape, make the liner two-dimensional template.
4) by the liner two-dimensional template of making to the blanking of PFA fluoroplastics sheet material, and be numbered with model is corresponding one by one.
5) one side that need be attached in the container the good fluoroplastic plate 4 of blanking is heated to molten condition (about 340 ℃ to 380 ℃), overlays glass fabric 3.
6) fluoroplastic plate 4 that will the number of finishing is pressed with the one side and surge tank 1 inner chamber of glass fabric and fits, and forms a complete liner fluorine material internal layer, and no air becomes vacuum state between fluoroplastic plate and the surge tank surface of internal cavity.
7) hand-held hot blast plastic welding gun and the PFA welding wire that the seam 5 usefulness Switzerland LEISTER companies of the fluoroplastic plate that is attached to the surge tank inner chamber and fluoroplastic plate are produced carries out sweat soldering under inert gas shielding; and make all seams all be fused to one, do not leak solder joint and leak weld seam.During welding, the position of the required welding of fluoroplastic plate is heated to about 300 ℃.
8) the liner equipment inner chamber fluorine material that connects of butt welding is with high-voltage pulse formula electric spark leak detector, and butt welded seam is hunted leak, if looked into leak source, carries out repair welding, till no any leak source.During leak detection, the output voltage of electric spark leak detector is 10kv.
Claims (9)
1. the method for container inside lining anti-corrosive fluoroplastic plate, it is characterized in that: it may further comprise the steps,
A. make the polylith anti-corrosive fluoroplastic plate, the polylith anti-corrosive fluoroplastic plate requires to be spliced into the container intracavity shape;
The one side that b. anti-corrosive fluoroplastic plate need be attached to container intracavity is heated to molten condition, pastes the upper glass fiber cloth;
C. be coated with polymer binder on the surface of container intracavity;
D. the one side that glass fabric is arranged of anti-corrosive fluoroplastic plate is fitted with the container intracavity surface; Polylith anti-corrosive fluoroplastic plate after the applying is spliced into the container intracavity shape;
E. the seam of adjacent anti-corrosive fluoroplastic plate is carried out sweat soldering with welding machine, welding wire.
2. method according to claim 1 is characterized in that: behind step e, also in steps
F. hunt leak with the electric spark leak detector butt welded seam, if there is leak source to carry out repair welding with welding machine, welding wire again.
3. method according to claim 2 is characterized in that: behind step e, electric spark leak detector is the high-voltage pulse formula, and its output voltage is 5-10KV.
4. method according to claim 1 is characterized in that: fluoroplastic plate is PFA, PTFE, PVDF, ETFE, ECTFE hot melt fluoroplastic plate.
5. method according to claim 1 is characterized in that: the composition of welding wire is identical with the composition of fluoroplastic plate.
6. method according to claim 1 is characterized in that: during welding, the position of the required welding of fluoroplastic plate is heated to 260 ℃ to 350 ℃.
7. method according to claim 1 is characterized in that: after the one side that anti-corrosive fluoroplastic plate has a glass fabric was fitted with the container intracavity surface, no air became vacuum state between anti-corrosive fluoroplastic plate and the container intracavity surface.
8. method according to claim 1 is characterized in that: described welding machine is the hot blast Welding plate.
9. method according to claim 1 is characterized in that: among the step b, the temperature that anti-corrosive fluoroplastic plate need be attached to the one side heating of container intracavity is 340 ℃ to 380 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100234511A CN101254647A (en) | 2008-04-15 | 2008-04-15 | Method of container inside lining anti-corrosive fluoroplastic plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100234511A CN101254647A (en) | 2008-04-15 | 2008-04-15 | Method of container inside lining anti-corrosive fluoroplastic plate |
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| Publication Number | Publication Date |
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| CN101254647A true CN101254647A (en) | 2008-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100234511A Pending CN101254647A (en) | 2008-04-15 | 2008-04-15 | Method of container inside lining anti-corrosive fluoroplastic plate |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628726A (en) * | 2012-04-06 | 2012-08-08 | 江苏达诺尔半导体超纯科技有限公司 | Leakage point detecting device for clean liner container |
| CN102642305A (en) * | 2012-03-14 | 2012-08-22 | 浙江东氟塑料科技有限公司 | Vacuum bonding method of anticorrosive fluoroplastic lining |
| WO2013174244A1 (en) * | 2012-05-22 | 2013-11-28 | Hong Houjun | Large chemical engineering equipment lining anti-corrosive plate manufacturing method |
| CN103771343A (en) * | 2014-02-26 | 2014-05-07 | 福建湄洲湾氯碱工业有限公司 | Packing absorbing tower for producing sodium hypochlorite |
| CN104174572A (en) * | 2014-08-06 | 2014-12-03 | 南京正源搪瓷设备制造有限公司 | Production method for workpiece with externally lined fluorine |
| CN107891619A (en) * | 2017-12-06 | 2018-04-10 | 南京协和助剂有限公司 | A kind of PTFE plastic plates are used for the anticorrosion process of tank inside |
| CN110525818A (en) * | 2019-07-31 | 2019-12-03 | 武汉吉隆过滤技术有限公司 | A kind of anti-corrosion slot and preparation method thereof |
-
2008
- 2008-04-15 CN CNA2008100234511A patent/CN101254647A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642305A (en) * | 2012-03-14 | 2012-08-22 | 浙江东氟塑料科技有限公司 | Vacuum bonding method of anticorrosive fluoroplastic lining |
| CN102642305B (en) * | 2012-03-14 | 2014-02-19 | 浙江东氟塑料科技有限公司 | Vacuum bonding method of anticorrosive fluoroplastic lining |
| CN102628726A (en) * | 2012-04-06 | 2012-08-08 | 江苏达诺尔半导体超纯科技有限公司 | Leakage point detecting device for clean liner container |
| WO2013174244A1 (en) * | 2012-05-22 | 2013-11-28 | Hong Houjun | Large chemical engineering equipment lining anti-corrosive plate manufacturing method |
| CN103771343A (en) * | 2014-02-26 | 2014-05-07 | 福建湄洲湾氯碱工业有限公司 | Packing absorbing tower for producing sodium hypochlorite |
| CN104174572A (en) * | 2014-08-06 | 2014-12-03 | 南京正源搪瓷设备制造有限公司 | Production method for workpiece with externally lined fluorine |
| CN107891619A (en) * | 2017-12-06 | 2018-04-10 | 南京协和助剂有限公司 | A kind of PTFE plastic plates are used for the anticorrosion process of tank inside |
| CN110525818A (en) * | 2019-07-31 | 2019-12-03 | 武汉吉隆过滤技术有限公司 | A kind of anti-corrosion slot and preparation method thereof |
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Open date: 20080903 |