CN103063501A - Steel product acid dipping test erosion integration device - Google Patents

Steel product acid dipping test erosion integration device Download PDF

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Publication number
CN103063501A
CN103063501A CN2011103245365A CN201110324536A CN103063501A CN 103063501 A CN103063501 A CN 103063501A CN 2011103245365 A CN2011103245365 A CN 2011103245365A CN 201110324536 A CN201110324536 A CN 201110324536A CN 103063501 A CN103063501 A CN 103063501A
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China
Prior art keywords
acid
tank
acid solution
heat exchanger
preheating
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CN2011103245365A
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CN103063501B (en
Inventor
章备庆
洪玉强
施振岩
杨存超
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Shanghai Baosteel Industry Technological Service Co Ltd
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Shanghai Baosteel Industry Inspection Corp
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Priority to CN201110324536.5A priority Critical patent/CN103063501B/en
Priority claimed from CN201110324536.5A external-priority patent/CN103063501B/en
Publication of CN103063501A publication Critical patent/CN103063501A/en
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Abstract

The invention discloses a steel product macroscopic examination device. A steel product acid dipping test erosion integration device comprises a compressed air source, a vapor source, a tap water source, an acid liquor preheating circulating system, an acid dipping test circulating system, an acid fog neutralizing tower, a rinse tank and a waste liquid tank , wherein the acid liquor preheating circulating system comprises an acid liquor preheating tank and a graphite heat exchanger which are successively connected, and the graphite heat exchanger returns to the acid liquor preheating tank through an acid buffer pool and an acid returning middle tank; the acid dipping test circulating system shares each device of an acid liquor preheating system and a pickling tank is arranged between the graphite heat exchanger and the acid liquor buffer pool, and the compressed air source can control pneumatic valves at the acid liquor inlet and acid liquor outlet of the pickling tank through a pneumatic control box; the acid fog neutralizing tower is controlled by an electric control cabinet and is connected with the pickling tank, the tap water source is connected with the cold water inlet of the rinse tank and is simultaneously connected in parallel with a water heater and is connected with the hot water inlet of the rinse tank; and the outlets of the rinse tank and the pickling tank are respectively connected with a waste liquid storage tank. The steel product macroscopic examination device provided by the invention has the advantages that the heating speed is rapid and uniform, and the acid concentration is unaffected.

Description

Steel pickle test corrosion integrating device
Technical field
The present invention relates to steel macroscopic examination device, relate in particular to the corrosion device of steel or steel billet pickle test.
Background technology
The full name of macroscopic examination: the macroscopic examination of steel (base) metallographic structure and defective.Because it is with the naked eye a kind of or is not more than the method for inspection of using under ten times the magnifier, and is daily generally referred to as macroscopic examination.Macroscopic examination method commonly used has pickle test, sulfur print test, phosphorus printing check, fracture examination, the check of turning turriform hairline etc. several, and pickle test is most widely used general, topmost a kind of method.
According to standard GB/T 226-97, the coarse micro-grain sample corrosion needs to guarantee 3 conditions: acid liquor temperature (60~80 ℃), acid strength (1:1 aqueous hydrochloric acid solution) and etching time.For the heating of acid solution, at present, common method all is directly to heat in acid tank, usually adopts two kinds of methods: electrical heating, Steam Heating.
Two methods have shortcoming:
Electrically heated have three weakness:
The material of good heat conductivity is not acidproof, acidproof material poor heat conductivity, and quartz glass is reasonablely not only to have satisfied heat conduction but also acidproof material, but very crisp, be not durable, and make (moulding) difficulty, poor processability, ready-made finished product price comparison is expensive;
All electrical apparatus interfaces part all will have good sealing, because in the pickling room, the existence of acid mist is inevitably, in case seal badly, electrical apparatus interface is corroded, and can cause the equipment short circuit;
Firing rate is slow and inhomogeneous;
And Steam Heating can reduce the concentration of acid solution.
Summary of the invention
The present invention is intended to address the aforementioned drawbacks, and a kind of steel pickle test corrosion integrating device is provided.Firing rate of the present invention is fast and even, can not affect acid concentration, and with low cost.
For addressing the above problem, a kind of steel pickle test corrosion integrating device, it comprises compressed air source, vapour source and water source from the beginning, this integrating device comprises:
Acid solution prewarming circulating system and the pickle test circulation system, described acid solution prewarming circulating system comprise by, the acid solution preheating can and the heat exchanger of graphite that connect successively, heat exchanger of graphite is through sour Buffer Pool and return sour intermediate tank and be back to the acid solution preheating can;
The described pickle test circulation system also is provided with descaling bath between described heat exchanger of graphite and acid solution Buffer Pool except installing with shared each of acid solution pre-heating system; Described compressed air source is controlled the pneumatic valve at the acid solution entrance and exit place of described descaling bath by a pneumatic control case; On the described descaling bath with air exhauster;
The acid mist neutralizing tower, it is by the top of electrical control cabinet control and connection descaling bath;
Rinse bath, described from the beginning water source is connected to the cold water inlet of described rinse bath, simultaneously a water heater in parallel and be connected to the hot water inlet of rinse bath;
Waste liquid tank, described rinse bath outlet and descaling bath outlet are connected to respectively the waste liquid storage tank.
Described steel pickle test corrosion integrating device, described heat exchanger of graphite inside is cellular, and have two separately independent, crooked and pipelines of being parallel to each other again, and wherein a pipeline is connected steam, and parallel pipeline flows into the acid solution come by the pumping of acid solution preheating can with it in addition.
Firing rate of the present invention is fast, and acid solution is heated evenly, and can guarantee well acid liquor temperature and acid strength, and easy to make, price is relatively low; Owing to heat exchanger of graphite and descaling bath are that separate, relatively independent unit, can guarantee the equipment set long service life like this, owing to omitted electrical appliance part, and stable equipment operation, easy to maintenance, be applicable to large-scale production and work continuously; Descaling bath is furnished with exhaust equipment, and the acid mist that produces in the process of the test is focused on by the acid mist neutralizing tower, has guaranteed the environmental quality of test indoor and outdoors.
Description of drawings
Below, the present invention is further illustrated by reference to the accompanying drawings:
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is described heat exchanger of graphite schematic diagram.
Embodiment
As shown in Figure 1: a kind of steel pickle test corrosion integrating device, it comprises compressed air source 1, vapour source 2 and water source 3 from the beginning, this integrating device comprises:
Acid solution prewarming circulating system and the pickle test circulation system, described acid solution prewarming circulating system comprise acid solution preheating can 4 and the heat exchanger of graphite 5 that connects successively, and heat exchanger of graphite 5 is back to acid solution preheating can 4 through sour Buffer Pool 6 and time sour intermediate tank 7;
The described pickle test circulation system also arranges descaling bath 9 between described heat exchanger of graphite 5 and acid solution Buffer Pool 6 except installing with shared each of acid solution pre-heating system; Described compressed air source 1 is by the pneumatic valve at the acid solution entrance and exit place of the described descaling bath 9 of a pneumatic control case 10 controls; On the described descaling bath with air exhauster;
Acid mist neutralizing tower 12, it is by the top of an electrical control cabinet 13 controls and connection descaling bath 9;
Rinse bath 14, described from the beginning water source 3 is connected to the cold water inlet of described rinse bath 14, simultaneously a water heater 15 in parallel and be connected to the hot water inlet of rinse bath;
Waste liquid tank 16, described rinse bath 14 outlets and descaling bath 9 outlets are connected to respectively waste liquid tank 16.
Described steel pickle test corrosion integrating device, described heat exchanger of graphite 5 inside are cellular, and have two separately independent, crooked and pipelines of being parallel to each other again, wherein pipeline is connected steam, and parallel pipeline flows into the acid solution (referring to Fig. 2) come by the pumping of acid solution preheating can with it in addition.

Claims (2)

1. steel pickle test corrosion integrating device, it comprises compressed air source, vapour source and water source from the beginning, it is characterized in that, this integrating device comprises:
Acid solution prewarming circulating system and the pickle test circulation system, described acid solution prewarming circulating system comprise acid solution preheating can and the heat exchanger of graphite that connects successively, and heat exchanger of graphite is back to the acid solution preheating can through sour Buffer Pool and time sour intermediate tank;
The described pickle test circulation system also arranges descaling bath between described heat exchanger of graphite and acid solution Buffer Pool except installing with shared each of acid solution pre-heating system; Described compressed air source is controlled the pneumatic valve at the acid solution entrance and exit place of described descaling bath by a pneumatic control case; On the described descaling bath with air exhauster;
The acid mist neutralizing tower, it is by the top of electrical control cabinet control and connection descaling bath;
Rinse bath, described from the beginning water source is connected to the cold water inlet of described rinse bath, simultaneously a water heater in parallel and be connected to the hot water inlet of rinse bath;
Waste liquid tank, described rinse bath outlet and descaling bath outlet are connected to respectively the waste liquid storage tank.
2. steel pickle test according to claim 1 corrodes integrating device, it is characterized in that, described heat exchanger of graphite inside is cellular, and have two separately independent, crooked and pipelines of being parallel to each other again, wherein pipeline is connected steam, and parallel with it in addition is the pipeline that flows into the acid solution of being come by the pumping of acid solution preheating can.
CN201110324536.5A 2011-10-24 Steel pickle test corrosion integrating device Expired - Fee Related CN103063501B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110324536.5A CN103063501B (en) 2011-10-24 Steel pickle test corrosion integrating device

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Application Number Priority Date Filing Date Title
CN201110324536.5A CN103063501B (en) 2011-10-24 Steel pickle test corrosion integrating device

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CN103063501A true CN103063501A (en) 2013-04-24
CN103063501B CN103063501B (en) 2016-12-14

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103900959A (en) * 2014-03-18 2014-07-02 攀钢集团攀枝花钢铁研究院有限公司 Macroscopic inspection method of rolled titanium-steel composite plate
CN108132175A (en) * 2018-02-09 2018-06-08 上海琨聚电子科技有限公司 A kind of steel bloom low-times thermal acid washes automatic test system
CN108535175A (en) * 2018-04-09 2018-09-14 东北大学 The macrostructure and defect acid etching of a kind of steel examine workbench and application method
CN108872525A (en) * 2018-06-05 2018-11-23 河南中原特钢装备制造有限公司 A kind of scene metallographic structure etching device and etching method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197139A (en) * 1978-08-23 1980-04-08 Hjersted Norman B Process for the reclamation of acid from spent pickle liquor
EP0654546A1 (en) * 1993-11-24 1995-05-24 Piet De Vries Method for pickling and an installation therefor
CN2420078Y (en) * 2000-01-17 2001-02-21 刘远祯 Automatic control heat exchange acid liquid heater
US6419756B1 (en) * 1997-09-29 2002-07-16 Siemens Aktiengellschaft Process and equipment for pickling a metal strip
CN2804775Y (en) * 2005-07-11 2006-08-09 山东赫达股份有限公司 Graphite heat exchanger
CN101539497A (en) * 2008-12-17 2009-09-23 马鞍山钢铁股份有限公司 Hot acid electrolytic corrosion method for macroscopic examination of metal samples

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197139A (en) * 1978-08-23 1980-04-08 Hjersted Norman B Process for the reclamation of acid from spent pickle liquor
EP0654546A1 (en) * 1993-11-24 1995-05-24 Piet De Vries Method for pickling and an installation therefor
US6419756B1 (en) * 1997-09-29 2002-07-16 Siemens Aktiengellschaft Process and equipment for pickling a metal strip
CN2420078Y (en) * 2000-01-17 2001-02-21 刘远祯 Automatic control heat exchange acid liquid heater
CN2804775Y (en) * 2005-07-11 2006-08-09 山东赫达股份有限公司 Graphite heat exchanger
CN101539497A (en) * 2008-12-17 2009-09-23 马鞍山钢铁股份有限公司 Hot acid electrolytic corrosion method for macroscopic examination of metal samples

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
张安龙 等: "石墨换热器在酸洗线中的应用", 《武钢技术》, vol. 49, no. 4, 31 August 2011 (2011-08-31), pages 60 - 62 *
朱占涛: "石墨换热器在酸洗上的应用", 《河北冶金》, no. 5, 31 December 2001 (2001-12-31), pages 52 - 53 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103900959A (en) * 2014-03-18 2014-07-02 攀钢集团攀枝花钢铁研究院有限公司 Macroscopic inspection method of rolled titanium-steel composite plate
CN103900959B (en) * 2014-03-18 2016-08-17 攀钢集团攀枝花钢铁研究院有限公司 A kind of macroscopic examination method rolling titanium steel composite board
CN108132175A (en) * 2018-02-09 2018-06-08 上海琨聚电子科技有限公司 A kind of steel bloom low-times thermal acid washes automatic test system
CN108535175A (en) * 2018-04-09 2018-09-14 东北大学 The macrostructure and defect acid etching of a kind of steel examine workbench and application method
CN108872525A (en) * 2018-06-05 2018-11-23 河南中原特钢装备制造有限公司 A kind of scene metallographic structure etching device and etching method

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Address after: 201900 Shanghai city Baoshan District Meipu Road No. 335

Patentee after: Shanghai Baosteel Industry Technological Service Co. Ltd

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