CN102172853A - Method for descaling cold stainless steel/carbon steel by utilizing ultrasonic pulse jet flow - Google Patents
Method for descaling cold stainless steel/carbon steel by utilizing ultrasonic pulse jet flow Download PDFInfo
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- CN102172853A CN102172853A CN 201110008718 CN201110008718A CN102172853A CN 102172853 A CN102172853 A CN 102172853A CN 201110008718 CN201110008718 CN 201110008718 CN 201110008718 A CN201110008718 A CN 201110008718A CN 102172853 A CN102172853 A CN 102172853A
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Abstract
The invention relates to a method for descaling cold stainless steel/carbon steel by utilizing ultrasonic pulse jet flow. The method is characterized by comprising the following steps of: (1) low pressure water supply: taking river water or industrial water as source water, and purifying the source water for later use; (2) pressurization with a high pressure pump: pressurizing the purified and filtered source water by using a three-plunger high pressure pump to obtain high pressure water; (3) preparation of ultrasonic pulse jet flow: introducing ultrasonic high-frequency pulse pulses into the high pressure water to form the ultrasonic pulse jet flow; and (4) jetting and descaling: performing descaling in a descaling device; sequentially conveying steels to be descaled to a descaling tank, and spraying the ultrasonic pulse jet flow to the surfaces of the steels by using an ultrasonic pulse jet spray head; and drying the descaled steels through a drying device and then outputting the dried steels. The method has the characteristics of high efficiency, energy conservation, emission reduction, no secondary pollution, slag recycle and the like, and has good market promotion prospect.
Description
Technical field
The present invention relates to a kind of method of steel surface de-scaling, especially a kind of descaling method of ultrasonic pulse jet current cold stainless steel/carbon.
Background technology
Along with fast development of national economy, the social demand amount of steel such as titanium alloy, stainless steel is increasing, because the surperficial de-scaling of will carrying out that the hot-rolled product that special steel factory provides has before the user uses is handled, promptly removes scale on surface.Domestic traditional descaling process generally adopts sulfuric acid, hydrochloric acid (carbon steel) or nitric acid, hydrofluoric acid (stainless steel) as medium at present, and spent acid and toxic emission have produced serious environmental pollution.Domestic and international many researchers just are being devoted to the research and development of anacidity de-scaling, to substitute traditional pickling descaling method, as electrolysis de-scaling, laser de-scaling, grinding de-scaling, rotoblasting, alternating bending descaling method etc.So far, the big production that is used for wire rod, bar and the band steel of cold stainless steel/carbon of the method for domestic above-mentioned anacidity de-scaling yet there are no report.In Chinese invention patent 200510050165.0; a kind of wire rod, bar and band steel rotoblasting method of cold stainless steel/carbon have been proposed; adopt water under high pressure and abrasive material grains of sand mixed liquor to be ejected into the descaling method of steel surface; but the method exists power consumption high; the complicated floor space of system process is big; abrasive material grains of sand consumption is big and cause secondary pollution, and the steel slag of removing is difficult to defectives such as recovery.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide that a kind of system process is simple, de-scaling efficient height, operating cost is low, iron loss is few and can reclaim, the descaling method of the ultrasonic pulse jet current cold stainless steel/carbon of non-secondary pollution.
According to technical scheme provided by the invention, the descaling method of described ultrasonic pulse jet current cold stainless steel/carbon, feature is to comprise following processing step:
(1) low pressure supplies water: behind the rivers water or water for industrial use filtration, purification that purified treatment is crossed, stand-by with low-lift pump input pond, described filtering accuracy is 10 ~ 50 μ m;
(2) high-pressure pump pressurization: with tri-plunger high pressure pump with purified treatment and the source water after filtering be forced into 30 ~ 50Mpa, obtain water under high pressure;
(3) preparation of ultrasonic pulse jet current: the ultrasonic wave high-frequency impulse is introduced in the water under high pressure, form have peel off, the ultrasonic pulse jet current of grindability; Described ultrasonic wave high-frequency impulse power is 1.5 ~ 2.0kW, ultrasonic frequency 15 ~ 20KHz;
(4) spray de-scaling: carry out de-scaling in descaling device, described descaling device comprises De-scaling box, ultrasonic pulse jet current shower nozzle, drying device and observation panel; The steel for the treatment of dephosphorization are passed through De-scaling box successively, by the ultrasonic pulse jet current shower nozzle ultrasonic pulse jet current is ejected into steel surface, the target of ultrasonic pulse jet current shower nozzle and steel is from being 25 ~ 50mm, and spray angle is 10 ~ 20
°, the injection effective width is 30 ~ 80mm, steel are 200 ~ 800mm/ minute by the speed of De-scaling box; Export after the steel drying device drying after the de-scaling, steel are 200 ~ 800mm/ minute by the speed of drying device, and baking temperature is 100 ~ 110 ℃.
Described ultrasonic pulse jet current shower nozzle adopts titanium alloy material to make.
The present invention adopts ultrasonic pulse jet current to be ejected into the descaling method of steel surface; plant the water hammer effect that utilizes powerful ultrasonic wave high-frequency resonance fluidics; this brute force ultrasonic resonance jet has the superpower function of peeling off and pulverize; he is a kind of physical method that utilizes powerful ultrasonic resonance jet to make steel surface iron scale and matrix separate and strip down; its technology is simple; take up an area of few; energy-conserving and environment-protective; its waste liquid can be recycled; the recyclable utilization of the slag that strips down; overcome the defective that adopts the expensive and contaminated environment of pickling de-scaling; also remedied and adopted water under high pressure and abrasive material grains of sand mixed liquor to be ejected into the power consumption height of the rotoblasting method of steel surface; the complicated floor space of system process is big; abrasive material grains of sand consumption is big and cause secondary pollution, and the steel slag of removing is difficult to defectives such as recovery.Thereby excellent characteristics such as the descaling method that adopts ultrasonic pulse jet current to be ejected into steel surface has efficiently, energy-saving and emission-reduction, non-secondary pollution, slag can be recycled, have good marketing prospect.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment.
Embodiment one: a kind of descaling method of ultrasonic pulse jet current cold stainless steel/carbon comprises following processing step:
(1) low pressure supplies water: get river, river or water for industrial use as source water, source water is pumped into upper flume through charging pump, after the purifier purified treatment, send into clear water reserviors, pump into elevated tank by clarified water pump then, delivery port at elevated tank is provided with filter, and is stand-by after filtering; The turbidity of described source water is 50mg/L, and the source water turbidity＜5mg/L after purified treatment, described filtering accuracy are 10 μ m;
(2) high-pressure pump pressurization: with tri-plunger high pressure pump with purified treatment and the source water after filtering be forced into 30Mpa, obtain water under high pressure; Described compression system mainly is made of tri-plunger high pressure pump, high pressure gauge, pressure regulator valve, pressure duct and ejecting device etc.;
(3) preparation of ultrasonic pulse jet current: the ultrasonic wave high-frequency impulse is introduced in the water under high pressure, form have peel off, the ultrasonic pulse jet current of grindability; The ultrasonic pulse system is made of ultrasonic generator, transducer, luffing bar and cooling device and pulsing jet shower nozzle etc.; Described ultrasonic wave high-frequency impulse power is 1.5kW, ultrasonic frequency 15KHz; Described ultrasonic pulse jet current shower nozzle adopts titanium alloy material to make, and to obtain strong pulse resonant jet, has the long shower nozzle life-span simultaneously;
(4) spray de-scaling: carry out de-scaling in descaling device, described descaling device comprises De-scaling box, ultrasonic pulse jet current shower nozzle, drying device and observation panel; The steel for the treatment of dephosphorization are passed through De-scaling box successively, ultrasonic pulse jet current is ejected into steel surface, reach the effect of efficient de-scaling by the ultrasonic pulse jet current shower nozzle; The target of ultrasonic pulse jet current shower nozzle and steel is from being 25mm, and spray angle is 10
°, the injection effective width is 30mm, steel are 200mm/ minute by the speed of De-scaling box; Export after the steel drying device drying after the de-scaling, steel are 200mm/ minute by the speed of drying device, and baking temperature is 100 ℃.
Embodiment two: embodiment one: a kind of descaling method of ultrasonic pulse jet current cold stainless steel/carbon comprises following processing step:
(1) low pressure supplies water: get river, river or water for industrial use as source water, source water is pumped into upper flume through charging pump, after the purifier purified treatment, send into clear water reserviors, pump into elevated tank by clarified water pump then, delivery port at elevated tank is provided with filter, and is stand-by after filtering; The turbidity of described source water is 1000mg/L, and the source water turbidity＜5mg/L after purified treatment, described filtering accuracy are 50 μ m;
(2) high-pressure pump pressurization: with tri-plunger high pressure pump with purified treatment and the source water after filtering be forced into 50Mpa, obtain water under high pressure; Described compression system mainly is made of tri-plunger high pressure pump, high pressure gauge, pressure regulator valve, pressure duct and ejecting device etc.;
(3) preparation of ultrasonic pulse jet current: the ultrasonic wave high-frequency impulse is introduced in the water under high pressure, form have peel off, the ultrasonic pulse jet current of grindability; The ultrasonic pulse system is made of ultrasonic generator, transducer, luffing bar and cooling device and pulsing jet shower nozzle etc.; Described ultrasonic wave high-frequency impulse power is 2.0kW, ultrasonic frequency 20KHz; Described ultrasonic pulse jet current shower nozzle adopts titanium alloy material to make, and to obtain strong pulse resonant jet, has the long shower nozzle life-span simultaneously;
(4) spray de-scaling: carry out de-scaling in descaling device, described descaling device comprises De-scaling box, ultrasonic pulse jet current shower nozzle, drying device and observation panel; The steel for the treatment of dephosphorization are passed through De-scaling box successively, ultrasonic pulse jet current is ejected into steel surface, reach the effect of efficient de-scaling by the ultrasonic pulse jet current shower nozzle; The target of ultrasonic pulse jet current shower nozzle and steel is from being 50mm, and spray angle is 20
°, the injection effective width is 80mm, steel are 800mm/ minute by the speed of De-scaling box; Export after the steel drying device drying after the de-scaling, steel are 800mm/ minute by the speed of drying device, and baking temperature is 110 ℃.
Embodiment three: embodiment one: a kind of descaling method of ultrasonic pulse jet current cold stainless steel/carbon comprises following processing step:
(1) low pressure supplies water: get river, river or water for industrial use as source water, source water is pumped into upper flume through charging pump, after the purifier purified treatment, send into clear water reserviors, pump into elevated tank by clarified water pump then, delivery port at elevated tank is provided with filter, and is stand-by after filtering; The turbidity of described source water is 500mg/L, and the source water turbidity＜5mg/L after purified treatment, described filtering accuracy are 30 μ m;
(2) high-pressure pump pressurization: with tri-plunger high pressure pump with purified treatment and the source water after filtering be forced into 40Mpa, obtain water under high pressure; Described compression system mainly is made of tri-plunger high pressure pump, high pressure gauge, pressure regulator valve, pressure duct and ejecting device etc.;
(3) preparation of ultrasonic pulse jet current: the ultrasonic wave high-frequency impulse is introduced in the water under high pressure, form have peel off, the ultrasonic pulse jet current of grindability; The ultrasonic pulse system is made of ultrasonic generator, transducer, luffing bar and cooling device and pulsing jet shower nozzle etc.; Described ultrasonic wave high-frequency impulse power is 1.6kW, ultrasonic frequency 18KHz; Described ultrasonic pulse jet current shower nozzle adopts titanium alloy material to make, and to obtain strong pulse resonant jet, has the long shower nozzle life-span simultaneously;
(4) spray de-scaling: carry out de-scaling in descaling device, described descaling device comprises De-scaling box, ultrasonic pulse jet current shower nozzle, drying device and observation panel; The steel for the treatment of dephosphorization are passed through De-scaling box successively, ultrasonic pulse jet current is ejected into steel surface, reach the effect of efficient de-scaling by the ultrasonic pulse jet current shower nozzle; The target of ultrasonic pulse jet current shower nozzle and steel is from being 40mm, and spray angle is 15
°, the injection effective width is 50mm, steel are 600mm/ minute by the speed of De-scaling box; Export after the steel drying device drying after the de-scaling, steel are 600mm/ minute by the speed of drying device, and baking temperature is 100 ℃.
Waste collection system in the De-scaling box of the present invention adopts formations such as multistage sewage collecting sedimentation basin, slush pump, purifier, sewage and slag retracting device, to spraying waste liquid after the de-scaling after precipitation, classification and purified treatment, the de-scaling water can recycle, and slag can be recycled again.
Claims (2)
1. the descaling method of a ultrasonic pulse jet current cold stainless steel/carbon is characterized in that, comprises following processing step:
(1) low pressure supplies water: behind the rivers water or water for industrial use filtration, purification that purified treatment is crossed, stand-by with low-lift pump input pond, described filtering accuracy is 10 ~ 50 μ m;
(2) high-pressure pump pressurization: with tri-plunger high pressure pump with purified treatment and the source water after filtering be forced into 30 ~ 50Mpa, obtain water under high pressure;
(3) preparation of ultrasonic pulse jet current: the ultrasonic wave high-frequency impulse is introduced in the water under high pressure, formed to have and peel off and the ultrasonic pulse jet current of grindability; Described ultrasonic wave high-frequency impulse power is 1.5 ~ 2.0kW, ultrasonic frequency 15 ~ 20KHz;
(4) spray de-scaling: carry out de-scaling in descaling device, described descaling device comprises De-scaling box, ultrasonic pulse jet current shower nozzle, drying device and observation panel; The steel for the treatment of dephosphorization are passed through De-scaling box successively, by the ultrasonic pulse jet current shower nozzle ultrasonic pulse jet current is ejected into steel surface, the target of ultrasonic pulse jet current shower nozzle and steel is from being 25 ~ 50mm, and spray angle is 10 ~ 20
°, the injection effective width is 30 ~ 80mm, steel are 200 ~ 800mm/ minute by the speed of De-scaling box; Export after the steel drying device drying after the de-scaling, steel are 200 ~ 800mm/ minute by the speed of drying device, and baking temperature is 100 ~ 110 ℃.
2. descaling method as claimed in claim 1 is characterized in that: described ultrasonic pulse jet current shower nozzle adopts titanium alloy material to make.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945074A (en) * | 2016-02-02 | 2016-09-21 | 北京科技大学 | Cold rolled strip steel acid-free descaling system and descaling method |
| CN114832928A (en) * | 2022-07-02 | 2022-08-02 | 江苏秦烯新材料有限公司 | Pulsed intelligent breaker of high-purity phosphorus |
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| CN1781667A (en) * | 2005-06-20 | 2006-06-07 | 杭州钢铁集团公司 | High pressure water shot blasting descaling method for wire bar and strip of cold stainless steel/carbon steel |
| CN101508091A (en) * | 2009-03-04 | 2009-08-19 | 无锡威孚奥特凯姆精密机械有限公司 | Parts finishing strain-removing technique |
| CN101556267A (en) * | 2009-05-22 | 2009-10-14 | 东北大学 | Method for simulating ferritic stainless steel hot-rolling sticking experiment and device thereof |
| CN101940994A (en) * | 2010-10-18 | 2011-01-12 | 任保林 | Ultrasonic pulse resonance jet rotary spray-head device |
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2011
- 2011-01-17 CN CN 201110008718 patent/CN102172853A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1781667A (en) * | 2005-06-20 | 2006-06-07 | 杭州钢铁集团公司 | High pressure water shot blasting descaling method for wire bar and strip of cold stainless steel/carbon steel |
| CN101508091A (en) * | 2009-03-04 | 2009-08-19 | 无锡威孚奥特凯姆精密机械有限公司 | Parts finishing strain-removing technique |
| CN101556267A (en) * | 2009-05-22 | 2009-10-14 | 东北大学 | Method for simulating ferritic stainless steel hot-rolling sticking experiment and device thereof |
| CN101940994A (en) * | 2010-10-18 | 2011-01-12 | 任保林 | Ultrasonic pulse resonance jet rotary spray-head device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945074A (en) * | 2016-02-02 | 2016-09-21 | 北京科技大学 | Cold rolled strip steel acid-free descaling system and descaling method |
| CN105945074B (en) * | 2016-02-02 | 2018-08-03 | 北京科技大学 | A kind of cold-rolled steel strip acid-free descaling system and descaling method |
| CN114832928A (en) * | 2022-07-02 | 2022-08-02 | 江苏秦烯新材料有限公司 | Pulsed intelligent breaker of high-purity phosphorus |
| CN114832928B (en) * | 2022-07-02 | 2022-12-09 | 江苏秦烯新材料有限公司 | Pulsed intelligent breaker of high-purity phosphorus |
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Application publication date: 20110907 |