CN107755122B - A kind of cold-rolling pickling aqueous protective fluids quantity for spray accuracy control method and device - Google Patents
A kind of cold-rolling pickling aqueous protective fluids quantity for spray accuracy control method and device Download PDFInfo
- Publication number
- CN107755122B CN107755122B CN201710981754.3A CN201710981754A CN107755122B CN 107755122 B CN107755122 B CN 107755122B CN 201710981754 A CN201710981754 A CN 201710981754A CN 107755122 B CN107755122 B CN 107755122B
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- Prior art keywords
- feed flow
- main pipeline
- aqueous protective
- liquid
- protective fluids
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Classifications
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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
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
- B05B12/087—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0278—Arrangement or mounting of spray heads
Landscapes
- Nozzles (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present invention provides a kind of cold-rolling pickling aqueous protective fluids quantity for spray accuracy control method and device, device includes liquid-supplying system and paint finishing, and the liquid-supplying system is connect with paint finishing by feed flow main pipeline；The liquid-supplying system is connected in sequence by liquid reserve tank, solution feed pump, solution feed pump outlet filter and cooler, and feed flow main pipeline pressure sensor is connected on the outlet feed flow main pipeline of cooler；The paint finishing includes upper spray beam and lower spray beam, and multiple nozzles are separately installed in upper spray beam and lower spray beam, and the injector spacing is 100mm-150mm, and nozzle is 130mm-150mm at a distance from strip.The present invention can be according to the pressure of the aqueous protective fluids in the speed of service dynamic regulation feed flow main pipeline of strip, the accuracy of quantity for spray in the uniformity and unit area to improve aqueous protective fluids spraying.
Description
Technical field
The present invention relates to Cold Rolling fields more particularly to a kind of cold-rolling pickling aqueous protective fluids quantity for spray accurately to control
Method and device processed.
Background technique
In cold-rolling process, the antirust of strip is directly related to product surface quality and corrosion resistance, is indispensable
Link.Cold-rolling steel strip pickling board finished product need it is stored, transport etc. links get in client's hand, at least need more than ten days when
Between, the method for applying antirust oil is generallyd use at present carries out antirust.
Since cold rolled pickling steel sheets production scene air humidity is big, chloride ion content is more in acid gas weight, air, and antirust oil
Antirust time is again shorter, frequently results in cold rolled pickling steel sheets and has just corroded in transit.
To improve the antirust paint effect of cold-rolling pickling belt steel product in the presence of a harsh environment, composite antirust technology can be used to mention
The corrosion resistance of high pickling cold-strip steel increases by one of aqueous protective fluids spraying process in the outlet of cold-rolling pickling rinsing section, then
Dryer is entered back into, applies antirust oil again after steel plate drying, to have the function that dual antirust, it is anti-that rust-proof life reaches exclusive use
Twice or more of rust oil.
The spraying of aqueous protective fluids should accurately control the quantity for spray of aqueous protective fluids in the uniformity and unit area of spraying.
Quantity for spray is very few or unevenly will lead to holiday, and rust-preventing film is not easy to be formed, and cannot reach expected rust-proof effect.Quantity for spray is excessive
It is then easy to produce a large amount of foam, causes environmental pollution.This patent proposes a kind of cold-rolling pickling aqueous protective fluids spraying thus
Accuracy control method is measured, the accuracy of quantity for spray in the uniformity and unit area to improve aqueous protective fluids spraying.
Summary of the invention
The object of the present invention is to provide a kind of cold-rolling pickling aqueous protective fluids quantity for spray accuracy control method and devices, to mention
The accuracy of quantity for spray in the uniformity and unit area of high aqueous protective fluids spraying.
To achieve the above object, the present invention is implemented with the following technical solutions:
A kind of cold-rolling pickling aqueous protective fluids quantity for spray accuracy control method, this method are dynamic according to the speed of service of strip
State adjusts the pressure of the aqueous protective fluids in feed flow main pipeline, to improve the uniformity and unit area of aqueous protective fluids spraying
The accuracy of upper quantity for spray, specifically:
1) nozzle quantity is set according to strip width, calculation formula is as follows:
In formula: L-strip width, mm；N-nozzle quantity；
2) pressure p of feed flow main pipeline is adjusted according to strip speed V:
A) as speed of service V≤100m/min of strip, the pressure value of feed flow main pipeline is p=4bar, at this time individually
The flow of nozzle is q0=0.75L/min；
B) as the speed of service V > 100m/min of strip, the pressure of feed flow main pipeline is
The unit of p is bar in formula；The flow of single-nozzle is with feed flow master
The pressure p of pipeline changes.
A kind of spray equipment of cold-rolling pickling aqueous protective fluids, including liquid-supplying system and paint finishing, the liquid-supplying system
It is connect with paint finishing by feed flow main pipeline；The liquid-supplying system be by liquid reserve tank, solution feed pump, solution feed pump outlet filter and
Cooler is connected in sequence, and feed flow main pipeline pressure sensor is connected on the outlet feed flow main pipeline of cooler；The spray
Painting system includes upper spray beam and lower spray beam, is separately installed with multiple nozzles, the spray in upper spray beam and lower spray beam
Mouth spacing is 100mm-150mm, and nozzle is 130mm-150mm at a distance from strip.
The liquid reserve tank connection antirust solution metering pump and demineralized water metering pump, are injected with antirust solution metering pump into liquid reserve tank
The aqueous protective fluids that concentration is 100%, demineralized water metering pump inject demineralized water into liquid reserve tank, the aqueous protective fluids after making proportion
Mass concentration reach 10%；Liquid reserve tank heater is installed in the liquid reserve tank, the heating for aqueous protective fluids.
The solution feed pump outlet filter parallel connection pressure difference alarm, when the blocking of solution feed pump outlet filter, pressure difference alarm
Device alarm.
Compared with prior art, the beneficial effects of the present invention are:
A kind of cold-rolling pickling aqueous protective fluids quantity for spray accuracy control method and device, can be dynamic according to the speed of service of strip
State adjusts the pressure of the aqueous protective fluids in feed flow main pipeline, in the uniformity and unit area to improve aqueous protective fluids spraying
The accuracy of quantity for spray.
Detailed description of the invention
Fig. 1 is the schematic diagram of antirust solution liquid-supplying system and paint finishing in the present invention.
In figure: 1- liquid reserve tank；2- liquid-level switch；3- liquid level linker ball valve；4- ultrasonic level gage；5- feed flow pump intake
Hand-operated butterfly valve；6- liquid reserve tank thermometer；7- solution feed pump；8- feed flow pump outlet check valve；9- feed flow pump discharge manual ball valve；10-
Solution feed pump delivery gauge ball valve；11- solution feed pump delivery gauge；12- solution feed pump outlet filter；13- pressure difference alarm；
14- cooling water return water manual ball valve；15- is cooling can pressure of return water table；16- cooling water water inlet manual ball valve；The filtering of 17- cooling water
Device；18- cooling water inlet gage；19- cooling water water inlet Pneumatic gate valve；20- cooler outlet manual ball valve；21- cooler
Bypass manual ball valve；23- cooler；24- cooler entrance manual ball valve；25- feed flow main pipeline pressure sensor；26- feed flow
Main pipeline ball valve for manometer；27- feed flow main pipeline pressure gauge；28- filter inlet manual ball valve；29- solution feed pump outlet overflows
Valve；30- feed flow pump discharge manual ball valve；31- feed flow pump outlet check valve；32- solution feed pump；33- feed flow pump intake Hand-operated butterfly valve；
34- liquid reserve tank air cleaner；35- returns liquid filter；36- antirust solution metering pump；37- demineralized water metering pump；38- liquid reserve tank adds
Hot device；The upper spray beam of 39-；40- nozzle；Spray beam under 41-.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing, it should be noted that implementation of the invention be not limited to it is following
Embodiment.
A kind of cold-rolling pickling aqueous protective fluids quantity for spray accuracy control method, this method are dynamic according to the speed of service of strip
State adjusts the pressure of the aqueous protective fluids in feed flow main pipeline, to improve the uniformity and unit area of aqueous protective fluids spraying
The accuracy of upper quantity for spray, specifically:
1) nozzle quantity is set according to strip width, calculation formula is as follows:
In formula: L-strip width, mm；N-nozzle quantity；
2) pressure p of feed flow main pipeline is adjusted according to strip speed V:
A) as speed of service V≤100m/min of strip, the pressure value of feed flow main pipeline is p=4bar, at this time individually
The flow of nozzle is q0=0.75L/min；
B) as the speed of service V > 100m/min of strip, the pressure of feed flow main pipeline is
The unit of p is bar in formula；The flow of single-nozzle is with feed flow master
The pressure p of pipeline changes.
It is required that the spray angle of nozzle is 60 ° when the pressure of feed flow main pipeline is 10bar.
As shown in Figure 1, a kind of spray equipment of cold-rolling pickling aqueous protective fluids, including liquid-supplying system and paint finishing, institute
It states liquid-supplying system and is connect with paint finishing by feed flow main pipeline；The liquid-supplying system be by liquid reserve tank 1, solution feed pump (7,32),
Solution feed pump outlet filter 12 and cooler 23 are connected in sequence, and connect feed flow on the outlet feed flow main pipeline of cooler 23
Main pipeline pressure sensor 25；The paint finishing includes upper spray beam 39 and lower spray beam 41, in upper spray beam 39 and lower spray
It penetrates on beam 41 and is separately installed with multiple nozzles 40,40 spacing of adjacent nozzle is 100mm-150mm, and nozzle is at a distance from strip
For 130mm-150mm.
The liquid reserve tank 1 connects antirust solution metering pump 36 and demineralized water metering pump 37, with antirust solution metering pump 36 to liquid storage
The aqueous protective fluids that implantation concentration is 100% in case 1, demineralized water metering pump 37 injects demineralized water into liquid reserve tank 1, after making proportion
The mass concentrations of aqueous protective fluids reach 10%；Liquid reserve tank heater 38 is installed in the liquid reserve tank 1, for water base anti-
The heating of rust liquid.
Design has ultrasonic level gage 4 on liquid reserve tank 1, detects the liquid level of liquid reserve tank 1 automatically for control system.Liquid reserve tank
1 is equipped with liquid reserve tank thermometer 6, for detecting the temperature of antirust solution in liquid reserve tank 1.Liquid reserve tank 1 is equipped with back liquid filter 35,
For filtering out the impurity in reflux antirust solution.1 side liquid-level switch 2 of liquid reserve tank, passes through liquid level linker ball valve 3 and liquid reserve tank 1
It is connected.
Liquid-supplying system design have with two solution feed pumps (7,32), one work, one is spare, feed flow pump motor use frequency conversion
Control, according to the pressure of the speed of service dynamic regulation feed flow main pipeline of strip.Two solution feed pump (7,32) suction inlets pass through respectively
Feed flow pump intake Hand-operated butterfly valve (5,33) is connected with liquid reserve tank 1.The outlet of two solution feed pumps (7,32) is respectively equipped with solution feed pump
Outlet check valves (8,31), feed flow pump outlet check valve (8,31) outlet are separately connected feed flow pump discharge manual ball valve (9,30).
Solution feed pump outlet overflows valve 29 is connected on the outlet conduit of feed flow pump discharge manual ball valve, solution feed pump outlet overflows valve 29 goes out
Mouth is communicated by pipeline with liquid reserve tank 1.
The solution feed pump outlet filter 12 pressure difference alarm 13 in parallel, when solution feed pump outlet filter 12 blocks, pressure
The alarm of difference alarming device.
28 one end of filter inlet manual ball valve is connect with solution feed pump outlet filter 12, the other end and feed flow pump discharge hand
The outlet conduit of dynamic ball valve (9,30) is connected.The outlet of solution feed pump outlet filter 12 connection cooler 23, cooler 23 and cooling
Device entrance manual ball valve 24 and cooler outlet manual ball valve 20 connect, and the cooler in parallel of solution feed pump outlet filter 12 bypasses hand
Dynamic ball valve 21.Cooler water system is by cooling water return water manual ball valve 14, cooling meeting pressure of return water table 15, cooling water water inlet hand
Dynamic ball valve 16, cooling water filter 17, cooling water inlet gage 18 and cooling water water inlet Pneumatic gate valve 19 form.
Feed flow main pipeline pressure sensor 25, feed flow main pipeline pressure gauge ball are connected on the outlet feed liquid pipeline of cooler 23
Valve 26, feed flow main pipeline pressure gauge 27, feed flow main pipeline pressure sensor 25 is for detecting spray beam 39 and lower spray beam 41
Liquid supply pressure.Upper spray beam 39 and lower spray beam 41 are connected by feed flow main pipeline with cooler 23.Upper spray beam 39 is under
Nozzle 40 is installed, nozzle 40 is solid-cone (type) nozzle in spray beam 41.
Claims (4)
1. a kind of cold-rolling pickling aqueous protective fluids quantity for spray accuracy control method, which is characterized in that this method is according to strip
The pressure of aqueous protective fluids in speed of service dynamic regulation feed flow main pipeline, to improve the uniformity of aqueous protective fluids spraying
With the accuracy of quantity for spray on unit area, specifically:
1) nozzle quantity is set according to strip width, calculation formula is as follows:
In formula: L-strip width, mm；N-nozzle quantity；
2) pressure p of feed flow main pipeline is adjusted according to strip speed V:
A) as speed of service V≤100m/min of strip, the pressure value of feed flow main pipeline is p=4bar, at this time single-nozzle
Flow be q0=0.75L/min；
B) as the speed of service V > 100m/min of strip, the pressure of feed flow main pipeline is
The unit of p is bar in formula；The flow of single-nozzle is with feed flow main pipeline
Pressure p variation.
2. a kind of spray equipment for the cold-rolling pickling aqueous protective fluids that the method as described in claim 1 uses, which is characterized in that
Including liquid-supplying system and paint finishing, the liquid-supplying system is connect with paint finishing by feed flow main pipeline；The liquid-supplying system
It is to be connected in sequence by liquid reserve tank, solution feed pump, solution feed pump outlet filter and cooler, is responsible in the outlet feed flow of cooler
Feed flow main pipeline pressure sensor is connected on road；The paint finishing includes upper spray beam and lower spray beam, in upper spray beam and
Multiple nozzles are separately installed in lower spray beam, the injector spacing is 100mm-150mm, and nozzle is at a distance from strip
130mm-150mm。
3. a kind of spray equipment of cold-rolling pickling aqueous protective fluids according to claim 2, which is characterized in that the liquid storage
Case connects antirust solution metering pump and demineralized water metering pump, with the antirust solution metering pump water that implantation concentration is 100% into liquid reserve tank
Base antirust solution, demineralized water metering pump inject demineralized water into liquid reserve tank, and the mass concentration of the aqueous protective fluids after making proportion reaches
10%；Liquid reserve tank heater is installed in the liquid reserve tank, the heating for aqueous protective fluids.
4. a kind of spray equipment of cold-rolling pickling aqueous protective fluids according to claim 2, which is characterized in that the feed flow
Pump discharge filter parallel connection pressure difference alarm, when the blocking of solution feed pump outlet filter, pressure difference alarm equipment alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981754.3A CN107755122B (en) | 2017-10-20 | 2017-10-20 | A kind of cold-rolling pickling aqueous protective fluids quantity for spray accuracy control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981754.3A CN107755122B (en) | 2017-10-20 | 2017-10-20 | A kind of cold-rolling pickling aqueous protective fluids quantity for spray accuracy control method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107755122A CN107755122A (en) | 2018-03-06 |
| CN107755122B true CN107755122B (en) | 2019-07-05 |
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ID=61269441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710981754.3A Active CN107755122B (en) | 2017-10-20 | 2017-10-20 | A kind of cold-rolling pickling aqueous protective fluids quantity for spray accuracy control method and device |
Country Status (1)
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| CN (1) | CN107755122B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1350407A (en) * | 1962-03-14 | 1964-04-24 | Nippon Kogei Kogyo Co | Spray nozzle for spraying plaster |
| JPS5848019B2 (en) * | 1979-11-09 | 1983-10-26 | 石川島播磨重工業株式会社 | Spray cooling method and device for steel plate |
| DE10224128A1 (en) * | 2002-05-29 | 2003-12-18 | Schmid Rhyner Ag Adliswil | Method of applying coatings to surfaces |
| CN102553950B (en) * | 2012-02-24 | 2014-07-23 | 宝山钢铁股份有限公司 | Cooling system for rolled stripe continuously-casting production line and control method thereof |
| CN203778246U (en) * | 2014-04-28 | 2014-08-20 | 常熟市龙腾特种钢有限公司 | Rustproof liquid spraying device |
| CN204224916U (en) * | 2014-05-15 | 2015-03-25 | 福伊特专利有限公司 | A kind of device spraying mobile fiber web |
-
2017
- 2017-10-20 CN CN201710981754.3A patent/CN107755122B/en active Active
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| Publication number | Publication date |
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| CN107755122A (en) | 2018-03-06 |
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