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 PDF

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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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CN
China
Prior art keywords
zone
heat exchange
area
steel pipe
conveyer belt
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.)
Pending
Application number
CN201710399620.0A
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Chinese (zh)
Inventor
方夕涛
潘世勋
周洪超
李用涵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANDONG HENGTAO ENERGY-SAVING ENVIRONMENT PROTECTION Co Ltd
Original Assignee
SHANDONG HENGTAO ENERGY-SAVING ENVIRONMENT PROTECTION Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANDONG HENGTAO ENERGY-SAVING ENVIRONMENT PROTECTION Co Ltd filed Critical SHANDONG HENGTAO ENERGY-SAVING ENVIRONMENT PROTECTION Co Ltd
Priority to CN201710399620.0A priority Critical patent/CN107099798A/en
Publication of CN107099798A publication Critical patent/CN107099798A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23DENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D11/00Continuous 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

A kind of boiler air preheater enamel pipe production line and production technology
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.
CN201710399620.0A 2017-05-31 2017-05-31 A kind of boiler air preheater enamel pipe production line and production technology Pending CN107099798A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710399620.0A CN107099798A (en) 2017-05-31 2017-05-31 A kind of boiler air preheater enamel pipe production line and production technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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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Publication Number Publication Date
CN107099798A true CN107099798A (en) 2017-08-29

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Cited By (2)

* Cited by examiner, † Cited by third party
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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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)

* Cited by examiner, † Cited by third party
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
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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Application publication date: 20170829

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