CN111185336B - Jet-type hot degreasing brazing flux pre-coating continuous production line - Google Patents
Jet-type hot degreasing brazing flux pre-coating continuous production line Download PDFInfo
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- CN111185336B CN111185336B CN202010147035.3A CN202010147035A CN111185336B CN 111185336 B CN111185336 B CN 111185336B CN 202010147035 A CN202010147035 A CN 202010147035A CN 111185336 B CN111185336 B CN 111185336B
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- flux
- degreasing
- air
- drying
- jet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a jet-type hot degreasing flux precoating continuous production line which comprises a loading system, a first air knife degreasing device, a second air knife degreasing device, a flux automatic coating system, a first drying circulating fan, a second drying circulating fan, an air cooling system, a flux discharging system, a drying cooling exhaust filter, a drying cooling exhaust fan, a degreasing cooling exhaust filter, a spraying purification exhaust fan, a heat exchange exhaust fan, a loading control screen, an air inlet filter, a waste gas exhaust fan, a coating purification exhaust fan, a coating control screen, a flux system and a flux discharging control screen which are sequentially arranged on a workbench. For a small aluminum plate, the invention adopts a fresh hot-air jet method to remove volatile oil contained on the surface of a workpiece to the maximum extent; and (3) spraying the brazing flux on the surface of the degreased hot workpiece, wherein the heat of the workpiece can quickly concentrate and stabilize the brazing flux without flowing and lacework according to the calculation of the constant pre-sprayed brazing flux. And also provides conditions for reducing energy consumption of the drying furnace.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to a jet-type hot degreasing brazing flux pre-coating continuous production line.
Background
At present, oily waste gas generated by common metal surface thermal degreasing equipment is directly discharged, the environment is directly polluted, and a large amount of energy is wasted due to the high temperature of the waste gas. The problem of oil smoke pollution is solved by a method for burning the oily waste gas, and because the volatile oil is inflammable and explosive, the oil content in the waste gas is low, a large amount of oily air is heated to be more than 800 ℃ for burning, the energy consumption is extremely high, the equipment loss is large, and the temperature stability and the time effect are insufficient, the waste gas is easy to decompose to generate harmful substances (such as dioxin) to be discharged, so that secondary pollution is caused; at present, waste gas containing a large amount of brazing flux generated in brazing flux coating has great harm to the environment, and is generally discharged by a direct filtration method. It is known that the brazing flux contains 70-80 of moisture and part of adhesive, belongs to a wet mixture containing high-viscosity particles, and gradually blocks a filtering device in work, so that waste gas cannot be smoothly discharged, and internal pollution is caused. Only frequent cleaning of the filter unit results in a large amount of sewage dirt being cleaned out.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a jet-type hot degreasing flux precoating continuous production line.
In order to achieve the purpose, the invention adopts the following technical scheme:
a jet-type hot degreasing flux precoating continuous production line comprises a loading system, a first air knife degreasing device, a second air knife degreasing device, a flux automatic coating system, a first drying circulating fan, a second drying circulating fan, an air cooling system, a flux discharging system, a drying cooling exhaust filter, a drying cooling exhaust fan, a degreasing cooling exhaust filter, a spraying purification exhaust fan, a heat exchange exhaust fan, a loading control screen, an air inlet filter, an exhaust gas discharge fan, a coating purification exhaust fan, a coating control screen, a flux system and a flux discharging control screen which are sequentially arranged on a workbench, the first air knife degreasing device and the second air knife degreasing device are provided with a waste gas discharge fan together, the air cooling system is provided with a drying and cooling exhaust fan, and the upper ends of the first air knife degreasing device and the second air knife degreasing device are also jointly provided with a heat recovery device and a waste oil collecting device.
Preferably, the heat recovery device is a heat exchanger.
Preferably, an exhaust gas dust removal device and a waste water filtering device are arranged on the automatic brazing flux coating system.
Preferably, the air cooling system adopts normal-temperature air cooling.
Preferably, the waste oil collecting device is communicated with the output end of the heat recovery device.
Preferably, the automatic brazing flux coating system comprises a brazing flux spray gun, a linear module, a servo motor, a pneumatic stirring motor, a pneumatic diaphragm pump, a brazing flux liquid storage tank, a brazing flux dosing tank and a pure water constant temperature system.
The invention has the following beneficial effects:
1. for a small aluminum plate, a fresh hot air jet method is adopted to remove volatile oil contained on the surface of a workpiece to the maximum extent, an inlet of degreasing equipment is provided with an upper workpiece section station, a maintenance inspection door is arranged in the middle section of a furnace body, oil smoke gas exhausting machines and pipelines are arranged at two ends and the upper part of the equipment, an outlet section is provided with a movable heat insulation cover, waste gas exhaust ports are arranged at the heating section parts of the degreasing equipment, the waste gas exhaust ports uniformly enter a heat exchanger for waste heat utilization, the heat consumption is reduced, the concentration of combustible gas in a hearth is ensured to be far lower than the dangerous concentration range, and potential safety hazards are eliminated; the air outlet is provided with an adjusting air valve, the air outlet can be reasonably adjusted to balance air flow, the effects of safety, energy conservation and consumption reduction are achieved, and the waste gas treatment system adopts an exchanger to cool and separate part of concentrated waste oil.
2. And (4) carrying out flux spraying on the surface of the degreased hot workpiece. Calculated according to the constant quantity of the pre-sprayed soldering flux, the heat carried by the workpiece can quickly concentrate and stabilize the soldering flux without flowing and lace. And also provides conditions for reducing energy consumption of the drying furnace.
Drawings
FIG. 1 is a schematic structural diagram of a jet-type hot degreasing flux pre-coating continuous production line provided by the invention;
FIG. 2 is a top view of a jet flow type hot degreasing flux pre-coating continuous production line according to the present invention.
In the figure: the system comprises a workpiece feeding system 1, a first air knife degreasing device 2, a second air knife degreasing device 3, an automatic brazing flux coating system 4, a first drying circulating fan 5, a second drying circulating fan 6, an air cooling system 7, a workpiece discharging system 8, a drying cooling exhaust filter 9, a drying cooling exhaust fan 10, a degreasing cooling exhaust filter 11, a spraying purification exhaust fan 12, a heat exchange exhaust fan 13, a workpiece feeding control screen 14, an air inlet filter 15, an exhaust gas exhaust fan 16, a coating purification exhaust fan 17, a coating control screen 18, a brazing flux system 19 and a workpiece discharging control screen 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, a jet-type hot degreasing flux precoating continuous production line comprises a workpiece feeding system 1, a first air knife degreasing device 2 and a second air knife degreasing device 3 which are sequentially arranged on a workbench, wherein for a small aluminum plate, a fresh hot air jet method is adopted to remove volatile oil contained on the surface of a workpiece to the maximum extent, an inlet of a degreasing device is provided with a workpiece feeding section station, a maintenance inspection door is arranged in the middle of a furnace body, oil smoke gas discharging fans and pipelines are arranged at two ends and the upper part of the device, an outlet section is provided with a movable heat insulation cover, and waste gas discharging ports are arranged at heating section parts of the degreasing device and uniformly enter a heat exchanger for waste heat utilization, so that the heat consumption is reduced, the concentration of combustible gas in a hearth is far lower than the dangerous concentration range, and potential safety hazards are eliminated; the exhaust outlet is provided with an adjusting air valve, the air valve can be reasonably adjusted to balance air flow, the effects of safety, energy conservation and consumption reduction are achieved, and the waste gas treatment system adopts an exchanger to cool and separate part of concentrated waste oil;
the automatic brazing flux coating system 4 comprises a brazing flux spray gun, a linear module, a servo motor, a pneumatic stirring motor, a pneumatic diaphragm pump, a brazing flux liquid storage tank, a brazing flux dosing tank and a pure water constant temperature system, wherein a pneumatic lifting type liquid accumulating tank is arranged at the lower part of the spraying chamber, and the liquid accumulating tank is inclined and connected with the spraying chamber; the spraying and cleaning liquid is stored in a lower liquid accumulating tank for centralized treatment and is connected with a dust removal device, the inlet and outlet of a spraying chamber are controlled by micro-negative pressure airflow so as to prevent aerial fog from overflowing, an aerial fog cover and the spraying chamber are connected by adopting a quick hasp and are connected with the dust removal device for convenience of disassembly, the materials of the spraying chamber, which are in direct contact with a soldering flux, are 316L materials and high polymer materials, polyester curtains which can be adjusted up and down are arranged at the inlet and the outlet of the spraying chamber, a lighting device is arranged in the spraying chamber so as to be used when light is insufficient, and inspection and observation doors are arranged at two sides of the spraying chamber; each flux spray gun is arranged below each set of linear module in the spraying chamber. Each spray gun is provided with an independent gas circuit and a brazing flux pipeline which are respectively used for adjusting the shape of gas flow and the spraying amount of the brazing flux; a pressure stabilizer is arranged at the output port of the brazing flux diaphragm pump, so that the working pressure fluctuation of the brazing flux sprayed relatively stably is reduced; a miniature flowmeter is connected with a connecting pipeline of the spray gun, so that the circulation flow of the brazing flux can be micro-regulated, and the spraying amount can be controlled;
meanwhile, the automatic brazing flux coating system 4 further comprises a spray gun cleaning system: with an automatic cleaning system. And automatically cleaning the spray gun within 20s according to a program after the spray gun works every time, and restarting the spray gun before automatically detecting the arrival of a workpiece. A soldering flux liquid storage tank: the stainless steel round barrel has the flux storage capacity of about 45Kg and provides a liquid source for the spray gun. The average flux consumption was 8g/m2 calculated 8 hours per shift, and about 30kg of hydrate of 20% flux +0.8 adhesive was actually consumed. So as not to cause the excessive flux to stay for a long time and avoid the adverse effect. A brazing flux batching trough: the liquid storage amount of the stainless steel round barrel is about 32Kg, and a liquid source is provided for the insufficient liquid of the brazing flux liquid storage tank. A stirring device: the distance between the stirring impeller and the bottom of the liquid storage tank is about 5-10mm, so that the solder is prevented from absorbing bottom and depositing. Liquid level alarm device: a liquid level controller is arranged on the soldering flux liquid storage tank cover, when the liquid level of the soldering flux drops to a certain position in the using process, an alarm is automatically given, and the timely addition of the soldering flux is prompted. Flux supply device: all medium contact parts, pipelines and chamber bodies are made of 316L stainless steel, and an anti-corrosion engineering plastic pump is selected as the brazing flux conveying diaphragm pump. The spraying circulating system is provided with a filter screen at a suction inlet, the filter screen is a 60-mesh stainless steel filter screen, and large welding flux suspended particles are filtered and sucked. The sprayed flux is continuously sucked out of the reservoir by means of a pneumatic diaphragm pump through a flow meter into the spray gun.
Spraying dust collector: is a wet dust removal device. All the contact medium parts, the pipelines and the chamber body are made of stainless steel and high polymer materials, and the dedusting wastewater can be used for reconfiguring the soldering flux after large-particle impurities are recovered and filtered.
A first drying circulating fan 5, a second drying circulating fan 6, an air cooling system 7, a piece discharging system 8, a drying cooling exhaust filter 9, a drying cooling exhaust fan 10, a degreasing cooling exhaust filter 11, a spraying purification exhaust fan 12, a heat exchange exhaust fan 13, an upper control screen 14, an air inlet filter 15, a waste gas discharge fan 16, a coating purification exhaust fan 17, a coating control screen 18, a soldering flux system 19 and a piece discharging control screen 20, wherein the first air knife degreasing device 2 and the second air knife degreasing device 3 are provided with the waste gas discharge fan together, the air cooling system 7 is provided with the drying cooling exhaust fan, the upper ends of the first air knife degreasing device 2 and the second air knife degreasing device 3 are also provided with a heat recovery device and a waste oil collection device together, the heat recovery device is a heat exchanger, the waste oil collection device is communicated with the output end of the heat recovery device, the automatic soldering flux coating system 4 is provided with a waste gas dust removal device and a waste water filtration device, the air cooling system 7 adopts normal temperature air cooling.
In the invention, the hot air blower and the hot box emit hot air, the exchange gas is extracted from the upper part of the inner cavity of the equipment, the oil-containing waste gas is sent into the exchanger, and the exchange heat is returned into the air inlet of the hot air blower, so that the cleanliness of the hot air flow of the degreasing nozzle is ensured. An arc-shaped reverse flow device is arranged below the spray nozzle, hot air flow of the spray nozzle can be guided to the lower part through gaps among workpieces and then reversely flows upwards, so that the back of the workpiece is removed by vortex, a pneumatic lifting type liquid accumulating tank is arranged at the lower part of the spraying chamber, and the liquid accumulating tank is inclined and connected with the spraying chamber; the sprayed and cleaned liquid is stored in a lower liquid accumulating tank for centralized treatment. Is connected with a dust removal device. The inlet and outlet of the spraying chamber are controlled by micro-negative pressure airflow so as to prevent the aerial fog from overflowing. In order to facilitate the disassembly, the aerosol cover and the spraying chamber are connected by a quick hasp and are connected with a dust removal device.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The jet-type hot degreasing flux precoating continuous production line is characterized by comprising a loading system (1), a first air knife degreasing device (2), a second air knife degreasing device (3), a flux automatic coating system (4), a first drying circulating fan (5), a second drying circulating fan (6), an air cooling system (7), a loading system (8), a drying cooling exhaust filter (9), a drying cooling exhaust fan (10), a degreasing cooling exhaust filter (11), a spraying purification exhaust fan (12), a heat exchange exhaust fan (13), a loading control screen (14), an air inlet filter (15), an exhaust gas discharge fan (16), a coating purification exhaust fan (17), a coating control screen (18), a flux system (19) and a loading control screen (20) which are sequentially arranged on a workbench, wherein the first air knife degreasing device (2) and the second air knife degreasing device (3) are jointly provided with the exhaust gas discharge fan, the air cooling system (7) is provided with a drying and cooling exhaust fan, and the upper ends of the first air knife degreasing device (2) and the second air knife degreasing device (3) are also provided with a heat recovery device and a waste oil collecting device together;
the automatic brazing flux coating system (4) comprises a brazing flux spray gun, a linear module, a servo motor, a pneumatic stirring motor, a pneumatic diaphragm pump, a brazing flux liquid storage tank, a brazing flux dosing tank and a pure water constant temperature system;
the lower part of the spraying chamber is provided with a pneumatic lifting type liquid accumulating tank which is inclined and is connected with the spraying chamber;
the automatic brazing flux coating system (4) also comprises a spray gun cleaning system;
an arc-shaped backflow device is arranged below the nozzle.
2. The jet-type hot degreasing flux precoating continuous production line according to claim 1, characterized in that the heat recovery device is a heat exchanger.
3. The continuous flux-jet hot degreasing flux precoating line according to claim 1, wherein an exhaust gas dust removal device and a wastewater filtration device are provided on the flux automatic coating system (4).
4. The jet-type hot degreasing flux precoating continuous production line according to claim 1, characterized in that the air cooling system (7) is cooled by normal temperature air.
5. The jet-type thermal degreasing flux precoating continuous production line according to claim 1, wherein the waste oil collecting device is communicated with an output end of a heat recovery device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010147035.3A CN111185336B (en) | 2020-03-05 | 2020-03-05 | Jet-type hot degreasing brazing flux pre-coating continuous production line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010147035.3A CN111185336B (en) | 2020-03-05 | 2020-03-05 | Jet-type hot degreasing brazing flux pre-coating continuous production line |
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| CN111185336A CN111185336A (en) | 2020-05-22 |
| CN111185336B true CN111185336B (en) | 2021-09-28 |
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| CN112827732A (en) * | 2021-02-10 | 2021-05-25 | 盐城市苏文机械有限公司 | Energy-saving and environment-friendly degreasing and brazing flux spraying drying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20090118721A (en) * | 2008-05-14 | 2009-11-18 | (주)양종테크 | Coating system for the case of portable terminal |
| JP6051405B2 (en) * | 2012-11-19 | 2016-12-27 | パナソニックＩｐマネジメント株式会社 | Paint mist processing equipment |
| CN104138823A (en) * | 2014-07-29 | 2014-11-12 | 江苏康杰机械股份有限公司 | Aluminum-workpiece pre-spraying device |
| CN106540503A (en) * | 2017-02-06 | 2017-03-29 | 大连冰山空调设备有限公司 | Multi-functional waste gas pre-processing device |
| CN108855736A (en) * | 2018-07-20 | 2018-11-23 | 厦门建霖健康家居股份有限公司 | A kind of spray equipment |
| CN208809704U (en) * | 2018-08-29 | 2019-05-03 | 江苏然博节能环保科技有限公司 | A kind of exhaust gas apparatus for treating cooking fume |
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