CN102139252B - Airless spraying device of low-pressure storage tank displacement method - Google Patents
Airless spraying device of low-pressure storage tank displacement method Download PDFInfo
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- CN102139252B CN102139252B CN 201110056589 CN201110056589A CN102139252B CN 102139252 B CN102139252 B CN 102139252B CN 201110056589 CN201110056589 CN 201110056589 CN 201110056589 A CN201110056589 A CN 201110056589A CN 102139252 B CN102139252 B CN 102139252B
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Abstract
The invention relates to a spraying device, in particular to a displacement airless spraying device of low-pressure storage tank. The device comprises a coating preparation tank, a coating feed conveying pump, a coating pressing spraying tank, an airless spraying nozzle set and a flushing water pump, wherein the discharge hole of the coating preparation tank is connected with the feeding hole of the coating pressing spraying tank through a conveying pipeline, and the coating feed conveying pump is arranged on the conveying pipeline; the discharge hole of the coating pressing spraying tank is connected with the airless spraying nozzle set through a coating spraying pipeline; the flushing water pump is connected with the coating preparation tank, the coating feed conveying pump, the coating pressing spraying tank and the coating spraying pipeline through flushing water pipelines respectively; and the conveying pipeline, the coating spraying pipeline, the flushing water pipelines and the compressed air input pipeline of the coating pressing spraying tank are provided with a pneumatic quick switching set formed by an electric automatic control system respectively. The device can spray a protective coating on the surface of a blank on line before the metal blank is heated so as to reduce the oxidation burning loss of the metal and relieve the surface quality deterioration and defect problems of the blank.
Description
Technical field
The present invention relates to spray equipment, specifically is the low pressure storage tank displacement method airless spray unit of high-temperature resistant coating spraying usefulness before a kind of metal stock heating.
Background technology
No matter be rolling, Forge Heating process in the METAL HEATING PROCESS process; Or simple heat treatment process; The capital is had a mind to overcome and is heated to be the negative effect that matrix brings, and comprises that oxidization burning loss, surface-element dilution and decarburization, surface quality worsen and then reduce product lumber recovery or the like.The method that solves is a lot, but all not satisfactory, and the method for the application of paint high temperature protection that occurs in recent years more and more embodies the using value of this method through actual application.Corresponding coating is generally high-temperature resistant coating; Take the method for coating protection obviously to reduce metal especially oxidization burning loss and the blank surface deterioration and the defect problem of iron and steel to a certain extent; Improve recovery rate of iron in the production process, directly improved the output and the quality of product.
Because it is big that the particularity of high-temperature resistant coating comprises the coating for wall surface that hardness is high, granularity is more general etc., solid content is higher relatively.Existing painting spraying device is simple manually-operated coating for wall surface spray equipment, is difficult in hot environment, use.Therefore; Coating method that existing metal high-temperature resistant coating spraying is involved and spray equipment are owing to be confined to normal temperature brushing drying and forming-film and the static state high-temperature protection; Do not match with the metallic high temperature heating production technology of reality, limited the popularization of metal high-temperature resistant coating application technology.Therefore, be necessary to provide a kind of spray equipment of metal high-temperature resistant coating to satisfy the spraying needs of high-temperature resistant coating before the METAL HEATING PROCESS.
Summary of the invention
Technical problem to be solved by this invention is; A kind of low pressure storage tank displacement method airless spray unit is provided; It can be to blank surface on-line spray protective coating before metal stock heating, thereby the oxidization burning loss and the blank that reduce metal are alleviated surface quality deterioration and defect problem.
The technical scheme that the present invention solves its technical problem employing is: a kind of low pressure storage tank displacement method airless spray unit; Comprise that coating is prepared jar, coating adds material conveying pump, coating pressurization spray tank, airless spraying nozzle sets, flush water pump; The discharging opening that said coating is prepared jar is connected through the conveying pipeline line with the feeding mouth of said coating pressurization spray tank; On this conveying pipeline line said coating is housed and adds material conveying pump; The discharging opening of said coating pressurization spray tank is connected with said airless spraying nozzle sets through coating spraying pipeline; Said flush water pump adds material conveying pump, coating pressurization spray tank and coating spraying pipeline with coating preparation jar, coating respectively through the flushing water pipeline and is connected; On the compressed air intake pipeline of said conveying pipeline line, coating spraying pipeline, flushing water pipeline and this coating pressurization spray tank the pneumatic valve of cutting soon is housed respectively, and constitutes the pneumatic valve group of cutting soon of control automatically with electric automatization control system.
Compared with prior art; The present invention has realized according to field requirement carrying out the automatic spraying operation of high-temperature resistant coating before the metal stock heating; It adopts the method for low pressure storage tank displacement method airless spraying; Make coating form uniform coating, so that metal stock is realized high temperature protection in high-temperature heating process on the metal stock surface.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the main TV structure sketch map of coating pressurization spray tank of the present invention.
Fig. 3 is the plan structure sketch map of coating pressurization spray tank of the present invention.
Fig. 4 sprays view for airless spraying nozzle sets of the present invention to steel billet.
Among the figure: coating is prepared jar 1; Conveying pipeline line 2; Flush water pump 3; Coating adds material conveying pump 4; Coating pressurization spray tank 5; Flushing water pipeline 6; The pneumatic valve 7 of cutting soon; Coating spraying pipeline 8; Airless spraying nozzle sets 9; Electric automatization control system 10; Compressed-air line 11; Compressed air pump 12; Dispersed with stirring mechanism 13; Exhaust outlet 14; Relief valve connection 15; Pressure gauge connection 16; Charging aperture 17; Compressed air inlet pipe 18, discharging opening 19; Steel billet 20; Steel billet carrying roller 21.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is detailed.
Referring to Fig. 1, low pressure storage tank displacement method airless spray unit of the present invention adds material conveying pump 4, coating pressurization spray tank 5, flushing water pipeline 6 by coating preparation jar 1, conveying pipeline line 2, flush water pump 3, coating; Pneumatic valve group 7, coating spraying pipeline 8, airless spraying nozzle sets 9, electrical control and automated system 10, compressed-air line 11, compressed air pump 12 compositions cut soon.The discharging opening of coating preparation jar 1 is connected through the charging aperture 17 of conveying pipeline line 2 and coating pressurization spray tank 5; On this conveying pipeline line 2 coating is housed and adds material conveying pump 4; The discharging opening 19 of coating pressurization spray tank 5 is connected with airless spraying nozzle sets 9 through coating spraying pipeline 8; Flush water pump 3 adds material conveying pump 4, coating pressurization spray tank 5 and coating spraying pipeline 8 with coating preparation jar 1, coating respectively through flushing water pipeline 6 and is connected; Compressed air pump 12 is connected through the compressed air inlet pipe 18 of compressed-air line 11 with coating pressurization spray tank 5; On conveying pipeline line 2, coating spraying pipeline 8, flushing water pipeline 6, the compressed-air line 11 the pneumatic valve 7 of cutting soon is housed respectively, and constitutes the pneumatic valve group of cutting soon of control automatically with electric automatization control system 10.
Still referring to Fig. 1, in the present embodiment, but said coating is prepared the paint can that jar 1 is the band dispersed with stirring mechanism 13 of timing controlled running.
Referring to Fig. 2, Fig. 3; In the present embodiment; The tank body top of said coating pressurization spray tank 5 is respectively arranged with exhaust outlet 14, relief valve connection 15 and pressure gauge connection 16, and its tank wall is provided with charging aperture 17, and its tank base is provided with discharging opening 19; Its compressed air inlet pipe 18 is introduced and is extended to by tank wall top in jar interior bottom coating, its operating pressure≤1MPa.This compressed air inlet pipe 18 both through adding compressed air to coating pressurization in the jar, worked to stir coating simultaneously again in the aerating process.
In the present embodiment, said coating pressurization spray tank 5 can be one, also can parallel connection be provided with two.The duty of single coating pressurization spray tank 5 is discontinuous spraying operation mode; The duty of two coating pressurization spray tanks 5 is for being " job one is got the raw materials ready " spraying operation mode continuously, and spraying is cut the action of valve group soon and realized through pneumatic continuously.
Coating pressurization spray tank 5 among the present invention is core components of this device, thereby its operation principle is to rely on compressed air to get into coating pressurization spray tank 5 progressively to replace the shared space of coating, and the spray pressure that satisfies low pressure airless spraying needs is provided.The mode that adds coatings is to reach atmospheric pressure state after 5 releases of coating pressurization spray tank; Coating is prepared jar 1 from coating add in 4 pairs of coating pressurizations of material conveying pump spray tank 5 through coating and to feed in raw material, the coating material levels are just through 10 controls of electric automatization control system in the coating pressurization spray tank 5.Below be to adopt the present invention to carry out the technological process (referring to Fig. 1, Fig. 4) of the preceding high-temperature resistant coating automatic spraying operation of metal stock heating:
Coating adds material conveying pump 4 from coating preparation jar 1 through coating coating is sent in the coating pressurization spray tank 5 (under the atmospheric pressure states); Electric automatization control system 10 controls the coating liquid level upper and lower bound scope in the coating pressurization spray tank 5 automatically; When reaching liquid level control range; Electric automatization control system 10 can control (or through manual mode control) coating automatically and add stopping of material conveying pump 4 and start the function of realization auto feed.Coating adds material conveying pump 4 stop after; The pneumatic valve of cutting soon of coating pressurization spray tank 5 tops is opened (or manual mode is opened) by electric automatization control system 10; In coating pressurization spray tank 5, charge into compressed air, make in the coating pressurization spray tank 5 to keep certain spraying operating pressure.When detection signal detects steel billet 20 motion on the steel billet carrying roller 21 before heating furnace; Get in airless spraying nozzle sets 9 spraying areas; The pneumatic valve of cutting soon of the discharging opening 19 of coating pressurization spray tank 5 belows is opened automatically, and coating sprays through 9 pairs of steel billet 20 surfaces of airless spraying nozzle sets; When detection signal detects steel billet 20 motion on the steel billet carrying roller 21 before heating furnace; Through vigour spray nozzle group 9 spraying areas; The pneumatic valve of cutting soon of the discharging opening 19 of coating pressurization spray tank 5 belows cuts out automatically; 9 sprayings of airless spraying nozzle sets stop, and so realize the on-line spray of steel billet 20 repeatedly.The coating liquid level reaches under the liquid level and prescribes a time limit in system detects coating pressurization spray tank 5, and this moment, spraying operation stopped, and coating pressurization spray tank 5 carries out gas emptying and release in the jar through the pneumatic valve of cutting soon on its compressed air inlet pipe 18.Release can be taked two kinds of approach: the direct emptying of compressed air; Also can take the pneumatic valve control coating of cutting soon of discharging opening 19 to return coating preparation jar 1, unstow until coating pressurization spray tank 5 internal pressures.In order to guarantee to spray online continuity; Avoid the state that coating pressurization spray tank 5 whens filling with substance can not spraying operation; Also can take two coating pressurization spray tank 5 parallelly connected spraying operation modes; Two jars switch operations and carry out continuous on-line spray, and two jars is a job one state of getting the raw materials ready, and spraying is cut the action of valve group soon through electric automatization control system 10 controls pneumatic and realized continuously.Under spraying operation finishes or runs into operating mode that the scene need stop to spray fully; Use flush water pump 3 (or flushing water source), 6 pairs of coating of flushing water pipeline to add material conveying pump 4, coating pressurization spray tank 5, coating spraying pipeline 8 etc. and carry out remaining coating removing, in order to avoid remaining coating retains the obstruction that deposition causes spray tank, charge pump, pipeline, valve and nozzle etc. for a long time in pipeline, valve.The whole paint finishing of electric automatization control system's 10 controls is carried out the automatic spraying operation according to the requirement at scene.
Claims (3)
1. low pressure storage tank displacement method airless spray unit; Comprise that coating is prepared jar, coating adds material conveying pump, coating pressurization spray tank, airless spraying nozzle sets, flush water pump; It is characterized in that; The tank body top of said coating pressurization spray tank is respectively arranged with exhaust outlet, relief valve connection and pressure gauge connection, and its tank wall is provided with charging aperture, and its tank base is provided with discharging opening; Its compressed air inlet pipe is introduced and is extended to by tank wall top in jar interior bottom coating, its operating pressure≤1MPa; The discharging opening that said coating is prepared jar is connected through the conveying pipeline line with the feeding mouth of said coating pressurization spray tank; On this conveying pipeline line said coating is housed and adds material conveying pump; The discharging opening of said coating pressurization spray tank is connected with said airless spraying nozzle sets through coating spraying pipeline; Said flush water pump adds material conveying pump, coating pressurization spray tank and coating spraying pipeline with coating preparation jar, coating respectively through the flushing water pipeline and is connected; On the compressed air intake pipeline of said conveying pipeline line, coating spraying pipeline, flushing water pipeline and this coating pressurization spray tank the pneumatic valve of cutting soon is housed respectively, and constitutes the pneumatic valve group of cutting soon of control automatically with electric automatization control system.
2. low pressure storage tank displacement method airless spray unit as claimed in claim 1 is characterized in that, but said coating is prepared a jar paint can that is the band dispersed with stirring mechanism of timing controlled running.
3. low pressure storage tank displacement method airless spray unit as claimed in claim 1 is characterized in that, said coating pressurization spray tank can be one, also can parallel connection be provided with two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110056589 CN102139252B (en) | 2011-03-10 | 2011-03-10 | Airless spraying device of low-pressure storage tank displacement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110056589 CN102139252B (en) | 2011-03-10 | 2011-03-10 | Airless spraying device of low-pressure storage tank displacement method |
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| CN102139252A CN102139252A (en) | 2011-08-03 |
| CN102139252B true CN102139252B (en) | 2012-12-26 |
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| CN 201110056589 Active CN102139252B (en) | 2011-03-10 | 2011-03-10 | Airless spraying device of low-pressure storage tank displacement method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103657919A (en) * | 2013-10-24 | 2014-03-26 | 江苏凯富铸业有限公司 | Paint spraying machine used for casting in V method |
| CN107457128A (en) * | 2017-07-31 | 2017-12-12 | 四川共享铸造有限公司 | A kind of recovery system and method for casting sprayed coating |
| CN112726370B (en) * | 2020-12-30 | 2022-03-22 | 安徽先河建筑工程有限公司 | Municipal road marking device and using method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4044717A (en) * | 1975-06-18 | 1977-08-30 | Institut Francais Du Petrole | Apparatus for coating a surface with a pulverulent product |
| CN86201145U (en) * | 1986-03-10 | 1987-01-14 | 宋文和 | Multifunctional electric spraying-smearing appliance operated by pressure |
| CN2465812Y (en) * | 2001-02-08 | 2001-12-19 | 沈汉聪 | Improved airless sprayer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59228960A (en) * | 1983-06-13 | 1984-12-22 | Toyota Motor Corp | Rotary atomization electrostatic painting device |
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2011
- 2011-03-10 CN CN 201110056589 patent/CN102139252B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4044717A (en) * | 1975-06-18 | 1977-08-30 | Institut Francais Du Petrole | Apparatus for coating a surface with a pulverulent product |
| CN86201145U (en) * | 1986-03-10 | 1987-01-14 | 宋文和 | Multifunctional electric spraying-smearing appliance operated by pressure |
| CN2465812Y (en) * | 2001-02-08 | 2001-12-19 | 沈汉聪 | Improved airless sprayer |
Non-Patent Citations (1)
| Title |
|---|
| JP昭59-228960A 1984.12.22 |
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