CN107099798A - A kind of boiler air preheater enamel pipe production line and production technology - Google Patents
A kind of boiler air preheater enamel pipe production line and production technology Download PDFInfo
- Publication number
- CN107099798A CN107099798A CN201710399620.0A CN201710399620A CN107099798A CN 107099798 A CN107099798 A CN 107099798A CN 201710399620 A CN201710399620 A CN 201710399620A CN 107099798 A CN107099798 A CN 107099798A
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- zone
- heat exchange
- area
- steel pipe
- conveyer belt
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D11/00—Continuous processes; Apparatus therefor
Abstract
The invention discloses a kind of boiler air preheater enamel pipe production line, enamel pipe production technical field, including conveyer belt, along the conveying direction of conveyer belt, feeding area, application of slip area and baking zone are sequentially provided with conveyer belt, heat exchange zone and firing zone are arranged side by side after baking zone, conveyer belt is set to U-shaped and sequentially passes through heat exchange zone, firing zone and again pass by heat exchange zone, discharging area is provided with after heat exchange zone;The present invention realizes the transmission of steel pipe by conveyer belt, sequentially pass through application of slip area and realize the automatic application of slip, dried by baking zone, heated up by heat exchange zone, sintered by firing zone, cool again by heat exchange zone, whole process is in addition to feeding area and discharging area, it is automation procedure, the requirement to operating personnel's technical ability, physical efficiency in enamel pipe production process is greatly reduced, the sintering process burnt using low temperature length enables vitreous enamel fully to complete various physical-chemical reactions, thoroughly exclude internal various gases, it is ensured that the stability of enamel pipe quality.
Description
Technical field
The present invention relates to enamel pipe production technical field, and in particular to a kind of boiler air preheater enamel pipe production line
And production technology.
Background technology
Since putting goods on the market application from enamel pipe, its production mainly has two ways.One kind is traditional handicraft, after treatment
Steel tube surface manually application of slip glaze slip, then formed with well-type electric furnace sintering.This mode is to the application of slip, sintering operation personnel's skill
Art requires higher, and labor intensity is very big, and thermal waste is serious when sintering completion, natural cooling, and production efficiency is very low, seriously
It has impact on the process of industrialization.
Another is electrostatic spraying powdered frit, is then formed by middle frequency furnace sensing heating sintering.This mode produces effect
Rate increases, but enamel pipe sintering completion is serious with thermal waste during cooling blower fast cooling, and tube bending is serious, and
The sintering process of vitreous enamel low temperature length burning is run counter to, product quality is difficult to meet《Tubular air preheater manufacturing technology condition》
NB/T47049-2016 requirement.
Based on problem above, the invention provides a kind of boiler air preheater enamel pipe production line and production technology,
Purpose is to reduce the requirement in enamel pipe production process to operating personnel's technical ability, physical efficiency, reduces thermal energy consumption, improves production effect
Rate, improves enamel pipe quality.
The content of the invention
For the problems of in the prior art, a kind of boiler air preheater that the present invention is provided is produced with enamel pipe
Line and production technology, can reduce the requirement to operating personnel's technical ability, physical efficiency in enamel pipe production process, reduce thermal energy consumption,
Production efficiency is improved, enamel pipe quality is improved.
To achieve these goals, the technical solution adopted by the present invention is as follows:
In a first aspect, the invention provides a kind of boiler air preheater enamel pipe production line, including conveyer belt, along institute
State and be sequentially provided with the conveying direction of conveyer belt, the conveyer belt after feeding area, application of slip area and baking zone, the baking zone side by side
It is provided with heat exchange zone and firing zone, the conveyer belt is set to U-shaped and sequentially passes through the heat exchange zone, the firing zone and again
By the heat exchange zone, discharging area is provided with after the heat exchange zone.
As a kind of perferred technical scheme, the conveyer belt is suspension type carrier chain so that steel pipe is in a hanging manner
Transmission is realized, conveyer belt passes through PLC controls.
As a kind of perferred technical scheme, the application of slip area includes inductor and automatic machine for enamelling, and sensor is used to visit
The position of steel pipe is surveyed, automatic machine for enamelling is by PLC controls, and automatic machine for enamelling includes interior machine for enamelling and outer machine for enamelling respectively to steel pipe
Inner and outer wall realize the application of slip, application of slip area bottom is provided with enamel collecting pit, and enamel collecting pit is used to collect from steel pipe stream
Under enamel.
As a kind of perferred technical scheme, the baking zone respectively with the heat exchange zone and the firing zone adjoining and
Provided with heat-exchanger rig to connect between the baking zone and the heat exchange zone, baking zone is respectively by with heat exchange zone and burning till
The waste heat of heat exchange zone and firing zone can be sent to drying by the adjacent surface in area and the heat-exchanger rig between heat exchange zone
Area.
As a kind of perferred technical scheme, patch area is provided between the baking zone and the heat exchange zone, work people
Member can check tube quality in patch area and the steel pipe that there is application of slip defect is repaired.
As a kind of perferred technical scheme, the heat exchange zone includes low temperature heat exchange zone and high temperature heat exchange zone, leads to
Low Temperature Thermal exchange area and high temperature heat exchange zone are crossed, the steel pipe that steel pipe to be fired can be made slowly to heat up and complete firing is slow
Cooling, prevents temperature of steel pipe change is too fast from causing deformation.
As a kind of perferred technical scheme, some radiant tubes are evenly distributed with the firing zone, are produced by radiant tube
Raw heat energy fires steel pipe.
As a kind of perferred technical scheme, it is equipped with temperature in the baking zone, the heat exchange zone and the firing zone
Measuring instrument is spent, temperature measuring set can show the temperature of baking zone, heat exchange zone and firing zone in real time, be easy to staff to adjust
Control.
Second aspect, the invention provides a kind of production technology of boiler air preheater enamel pipe, including following step
Suddenly:
(1) hanging tube:In feeding area, the steel pipe handled well is hung on conveyer belt successively;
(2) the automatic application of slip:The steel pipe is sent to application of slip area along the conveyer belt, and the surfaces externally and internally of the steel pipe is applied
Ward off;
(3) dry:The steel pipe for completing step (2) is sent to baking zone completion enamel drying;
(4) heat exchange:The steel pipe for completing step (3) is sent to heat exchange zone progress heat exchange, lifts the steel pipe
Temperature;
(5) sinter:The steel pipe for completing step (4) is sent to firing zone, carries out high temperature sintering;
(6) cooling down:The steel pipe for completing step (5) is sent to heat exchange zone progress heat exchange, reduces the steel
The temperature of pipe;
(7) pipe is plucked:The steel pipe for completing step (6) is sent to discharging area, that is, obtains boiler air preheater enamel
Pipe.
As a kind of perferred technical scheme, it is further comprising the steps of between step (3) and step (4):
The steel pipe for completing step (3) is checked, the steel pipe that there may be application of slip defect is repaired.
Beneficial effects of the present invention are shown:
1st, the present invention realizes the transmission of steel pipe by conveyer belt, sequentially passes through application of slip area and realizes the automatic application of slip, by drying
Area is dried, and is heated up, is sintered by firing zone by heat exchange zone, then by heat exchange zone cooling, whole process except feeding area and
It is automation procedure outside discharging area, greatly reduces the requirement to operating personnel's technical ability, physical efficiency in enamel pipe production process,
The sintering process burnt using low temperature length, enables vitreous enamel fully to complete various physical-chemical reactions, thoroughly excludes internal various
Gas, it is ensured that the stability of enamel pipe quality, and improve production efficiency.
2nd, the origin of heat of the baking zone in the present invention is in heat exchange zone and firing zone, and the origin of heat of heat exchange zone is in burning
The heat of the enamel pipe completed is tied, the smoke discharging residual heat of firing zone is also used for heating combustion air, effectively make use of enamel pipe to give birth to
The after-heat produced during production, realizes to steel pipe to be sintered and dries and preheat, not only reduce the consumption of heat energy, also make
The quality for obtaining the enamel pipe of output is also significantly increased.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of boiler air preheater enamel pipe production line of the invention;
In figure:1- feeding areas, 2- conveyer belts, 3- application of slips area, the automatic machines for enamelling of 4-, 5- enamel collecting pit, 6- baking zones, 7-
Patch area, 8- firing zones, 9- radiant tubes, 10- high temperature heat exchange zone, 11- heat exchange of heat pipes, 12- switch boards, 13- Low Temperature Thermals are handed over
Change area, 14- discharging areas.
Embodiment
For the ease of it will be appreciated by those skilled in the art that the present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the overall structure diagram of the present invention, including conveyer belt 2, along the conveying direction of conveyer belt 2, on conveyer belt 2
It is sequentially provided with after feeding area 1, application of slip area 3 and baking zone 6, baking zone 6 and heat exchange zone and firing zone 8 has been arranged side by side, conveyer belt 2
It is set to U-shaped to sequentially pass through heat exchange zone, firing zone 8 and again pass by heat exchange zone, discharging area 14 is provided with after heat exchange zone;The application of slip
Area 3 includes inductor and automatic machine for enamelling 4, and the bottom of application of slip area 3 is provided with enamel collecting pit 5, set between baking zone 6 and heat exchange zone
There is a patch area 7, heat exchange zone includes being evenly distributed with low temperature heat exchange zone 13 and high temperature heat exchange zone 10, firing zone 8 some
Radiant tube 9, radiant tube 9 is gas fired radiant tubes, is burnt using natural gas tiny structure, single branch gas fired radiant tubes is independently arranged to be blown automatically
Sweep, light a fire, the function such as temperature adjustment, it is ensured that burn till indoor temperature and stablize adjustable, being capable of long-term safety operation;Heat exchange of heat pipe 11 is used for
The smoke discharging residual heat of heat exchange zone and firing zone 8 is absorbed, the combustion air of heating radiation pipe 9 improves the efficiency of radiant tube 9.
In addition, present invention also offers a kind of production technology of boiler air preheater enamel pipe, comprising the following steps:
(1) hanging tube:In feeding area 1, the steel pipe handled well is hung on conveyer belt 2 successively, conveyer belt 2 uses 30kg grades
Light-duty suspension conveyer chain device, double guide wheels pair walk endless chain, and pitch 200mm, track 68mm*70mm*3mm can completely hang workpiece 550
Branch, conveyer belt 2 uses variable-frequency governor speed governing;
(2) the automatic application of slip:Steel pipe is sent to application of slip area 3 along conveyer belt 2, the surfaces externally and internally application of slip to steel pipe, in application of slip area 3
Provided with multiple application of slip stations, application of slip station is divided into interior application of slip station and outer application of slip station, and each application of slip station can be simultaneously right
Multiple steel pipes carry out the application of slip;
(3) dry:The steel pipe for completing step (2) is sent to the completion enamel drying of baking zone 6, and the design temperature of baking zone 6 is
90~130 DEG C;
(4) heat exchange:The steel pipe for completing step (3) is sent to heat exchange zone progress heat exchange, utilizes firing zone 8 and fires
The waste heat that the enamel pipe of completion is distributed lifts the temperature of steel pipe;
(5) sinter:The steel pipe for completing step (4) is sent to firing zone 8, carries out high temperature sintering, and firing zone 8 takes the shape of the letter U, burnt till
Effective length is 12 meters in area 8, and steel pipe is realized in firing zone 8 and sintered;
(6) cooling down:The steel pipe for completing step (5) is sent to heat exchange zone progress heat exchange, reduces the temperature of steel pipe,
Steel pipe is less than 50 DEG C by the temperature cooled when running to offline station;
(7) pipe is plucked:The steel pipe for completing step (6) is sent to discharging area 14, that is, obtains boiler air preheater enamel pipe.
Wherein, conveyer belt 2 is suspension type carrier chain so that steel pipe realizes transmission in a hanging manner, and conveyer belt 2 passes through
PLC is controlled, and PLC is located in switch board 12, meanwhile, automatic machine for enamelling 4 realizes conveyer belt also by PLC controls by PLC
2 transmission, to cooperation, is realized the automatic application of slip of steel pipe and transmitted with the application of slip of automatic machine for enamelling 4;Baking zone 6 respectively with heat exchange
Area and firing zone 8 abut and between baking zone 6 and heat exchange zone provided with heat-exchanger rig to connect, baking zone 6 respectively by with heat
The waste heat of heat exchange zone and firing zone 8 can be sent to baking zone by the adjacent surface and heat-exchanger rig of exchange area and firing zone 8
6;Temperature measuring set is equipped with baking zone 6, heat exchange zone and firing zone 8, temperature measuring set can show baking zone in real time
6th, the temperature of heat exchange zone and firing zone 8, is easy to staff to regulate and control;Baking zone 6 and heat exchange zone are equipped with some air curtains, use
Temperature in holding baking zone 6 and heat exchange zone.
Above content is only the structure example and explanation to the present invention, affiliated those skilled in the art
Various modifications or supplement are made to described specific embodiment or is substituted using similar mode, without departing from invention
Structure or surmount scope defined in the claims, protection scope of the present invention all should be belonged to.
Claims (10)
1. a kind of boiler air preheater enamel pipe production line, it is characterized in that, including conveyer belt, along the conveying of the conveyer belt
Heat exchange zone has been arranged side by side after feeding area, application of slip area and baking zone, the baking zone are sequentially provided with direction, the conveyer belt
And firing zone, the conveyer belt is set to U-shaped and sequentially passes through the heat exchange zone, the firing zone and again pass by the heat exchange
Discharging area is provided with after area, the heat exchange zone.
2. a kind of boiler air preheater enamel pipe production line according to claim 1, it is characterized in that, the conveyer belt
For suspension type carrier chain.
3. a kind of boiler air preheater enamel pipe production line according to claim 1, it is characterized in that, the application of slip area
Including inductor and automatic machine for enamelling, application of slip area bottom is provided with enamel collecting pit.
4. a kind of boiler air preheater enamel pipe production line according to claim 1, it is characterized in that, the baking zone
Abutted respectively with the heat exchange zone and the firing zone and heat-exchanger rig is provided between the baking zone and the heat exchange zone
To connect.
5. a kind of boiler air preheater enamel pipe production line according to claim 1, it is characterized in that, the baking zone
Patch area is provided between the heat exchange zone.
6. a kind of boiler air preheater enamel pipe production line according to claim 1, it is characterized in that, the heat exchange
Area includes low temperature heat exchange zone and high temperature heat exchange zone.
7. a kind of boiler air preheater enamel pipe production line according to claim 1, it is characterized in that, the firing zone
Inside it is evenly distributed with some radiant tubes.
8. a kind of boiler air preheater enamel pipe production line according to claim 1, it is characterized in that, the drying
Temperature measuring set is equipped with area, the heat exchange zone and the firing zone.
9. a kind of production technology of boiler air preheater enamel pipe, it is characterized in that, comprise the following steps:
(1) hanging tube:In feeding area, the steel pipe handled well is hung on conveyer belt successively;
(2) the automatic application of slip:The steel pipe is sent to application of slip area along the conveyer belt, the surfaces externally and internally application of slip to the steel pipe;
(3) dry:The steel pipe for completing step (2) is sent to baking zone completion enamel drying;
(4) heat exchange:The steel pipe for completing step (3) is sent to heat exchange zone progress heat exchange, lifts the temperature of the steel pipe
Degree;
(5) sinter:The steel pipe for completing step (4) is sent to firing zone, carries out high temperature sintering;
(6) cooling down:The steel pipe for completing step (5) is sent to heat exchange zone progress heat exchange, reduces the steel pipe
Temperature;
(7) pipe is plucked:The steel pipe for completing step (6) is sent to discharging area, that is, obtains boiler air preheater enamel pipe.
10. a kind of production technology of boiler air preheater enamel pipe according to claim 9, it is characterized in that, step
(3) it is further comprising the steps of between step (4):
The steel pipe for completing step (3) is checked, the steel pipe that there may be application of slip defect is repaired.
Priority Applications (1)
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CN201710399620.0A CN107099798A (en) | 2017-05-31 | 2017-05-31 | A kind of boiler air preheater enamel pipe production line and production technology |
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CN201710399620.0A CN107099798A (en) | 2017-05-31 | 2017-05-31 | A kind of boiler air preheater enamel pipe production line and production technology |
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CN201710399620.0A Pending CN107099798A (en) | 2017-05-31 | 2017-05-31 | A kind of boiler air preheater enamel pipe production line and production technology |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107805812A (en) * | 2017-12-07 | 2018-03-16 | 山东中琦环保设备制造有限公司 | The application of slip of air preheater enamel pipe and sintering circuit high efficiency transshipment acitivity and method |
CN110819990A (en) * | 2019-12-16 | 2020-02-21 | 山东鲁特西泵业有限公司 | Enamel production line |
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CN106521499A (en) * | 2016-10-27 | 2017-03-22 | 谢荣波 | Manufacturing process of enamel water supply and gas supply pipe |
CN207031553U (en) * | 2017-05-31 | 2018-02-23 | 山东恒涛节能环保有限公司 | A kind of boiler air preheater enamel pipe production line |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107805812A (en) * | 2017-12-07 | 2018-03-16 | 山东中琦环保设备制造有限公司 | The application of slip of air preheater enamel pipe and sintering circuit high efficiency transshipment acitivity and method |
CN107805812B (en) * | 2017-12-07 | 2023-09-19 | 山东中琦环保设备制造有限公司 | High-efficiency transfer mechanism and method for enamel coating and sintering processes of enamel pipe of air preheater |
CN110819990A (en) * | 2019-12-16 | 2020-02-21 | 山东鲁特西泵业有限公司 | Enamel production line |
CN110819990B (en) * | 2019-12-16 | 2024-01-26 | 山东鲁特西泵业有限公司 | Enamel production line |
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