CN204952604U - High silicon steel composite sheet and high silicon steel composite sheet sulphuric acid absorption tower - Google Patents
High silicon steel composite sheet and high silicon steel composite sheet sulphuric acid absorption tower Download PDFInfo
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- CN204952604U CN204952604U CN201520608959.3U CN201520608959U CN204952604U CN 204952604 U CN204952604 U CN 204952604U CN 201520608959 U CN201520608959 U CN 201520608959U CN 204952604 U CN204952604 U CN 204952604U
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- high silicon
- silicon steel
- absorption tower
- steel composite
- composite sheet
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Abstract
The utility model provides a high silicon steel composite sheet and high silicon steel composite sheet sulphuric acid absorption tower, the utility model discloses the high silicon stainless steel composite sheet can prevent effectively through adopting the S30403 stainless steel powder to do the intermediate level that above -mentioned element is to the surface infiltration of high silicon steel to the anti -corrosion performance and the welding process ability on the compound layer of guarantee. Adopt that the compound layer thickness 2.2mm of the rolling high silicon steel composite sheet of this invention, interface bonding rate 100%, the anti shear strength 238Mpa in interface, the sulphuric acid absorption tower of adopting this composite sheet preparation and the high silicon steel of housing face materials compound board plied timber of concentrated sulfuric acid contact is effectual resists vitriolic corruption, and composite sheet base material carbon steel plays the effect of bearing. It can resist the concentrated sulfuric acid and corrode and can bear various load, cost effective sulphuric acid absorption tower cheap relatively again and equip so to form one.
Description
Technical field
The utility model relates to the manufacture of composite, chemical industry equipment is built and application, is specifically related to a kind of high silicon steel composite plate and high silicon steel composite plate sulfuric acid absorption tower.
Background technology
Chemical industry equipment sulfuric acid absorption tower is widely used in gas washing in SA production as tower equipment and adopts sulfuric acid as the raw material of industry and auxiliary material industrial circle.Traditional sulfuric acid absorption tower adopts ordinary carbon steel to be the structure that housing serves as a contrast acidproof turn, and sulfuric acid medium contacts with acidproof brick.Carbon steel is that strength member supports, and the acidproof anticorrosion component that transfers to carries out anticorrosion.Also have a kind of sulfuric acid absorption tower, structure adopts high silicon steel construction entirely, has both played strength member and has carried out supporting role and play antisepsis simultaneously.The third structure high-silicon stainless steel sheet lining structure.In above-mentioned three kinds of structures, the constructed value of overall height silicon steel is expensive, and usual equipment ton valency reaches about 350,000, and Chemical Manufacture enterprise is beyond affordability; Lining brick structure has following critical defect: after tower completes, paste between inwall lining brick brick and brick and must have a kind of binding agent by two-layer brick seamless adhesion, and binding agent, acidproof turn, thermal coefficient of expansion between carbon steel has a great difference, particularly binding agent is long-term contacts meeting efflorescence with sulfuric acid medium, gap is produced because variations in temperature expands between brick and binding agent, strong corrosive medium sulfuric acid will enter along gap and corrode carbon steel shell, makes integral device scrap very soon.Adopt the absorption tower of lining structure, without anti-shear ability between its cladding and basic unit, can only fix by spot welding, cladding very easily comes off or peels off.For above-mentioned situation, the requirement of strength needing a kind of material can either meet equipment can meet not only the corrosion requirement of sulfuric acid medium and thermal coefficient of expansion but also close, have anti-shear ability between cladding and basic unit, the composite plate of high silicon steel and carbon steel can meet the technical requirement of equipment.Austenite high silicon stainless steel is called for short the alloy material that high silicon steel is a kind of special sulfuric acid corrosion resistant of metallurgy industry development in recent years, and Zhejiang Xuan Da industry group has successfully developed austenite high silicon stainless steel material the beginning of this century and dropped into sulfuric acid industry application.Adopt high silicon steel and the compounded high silicon steel composite plate of carbon steel to process to build for sulfuric acid absorption tower by cold-working rivet welding and not only can reduce equipment investment but also equipment intensity and corrosion requirement can be met, can be gas washing in SA production and application industry starts brand-new future.
Summary of the invention
In order to solve the deficiencies in the prior art, of the present utility modelly provide a kind of high silicon steel composite plate and high silicon steel composite plate sulfuric acid absorption tower.
The technical solution that the utility model adopts is: a kind of high silicon steel composite plate, be made up of basic unit, binder course and cladding from the bottom to top, described basic unit is Q235B steel, and described binder course is Ultra-low carbon S30403 stainless steel, and described cladding is XDS-2 high silicon stainless steel.
A kind of high silicon steel composite plate sulfuric acid absorption tower, the high silicon stainless steel composite plate described in described sulfuric acid absorption tower adopts is made.
A kind of high silicon steel composite plate sulfuric acid absorption tower, comprise cylindrical shell, described cylindrical shell lower end is provided with base plate and skirt, described cylindrical shell is provided with liquid outlet and gas feed, be provided with stuffing box above described cylindrical shell, be provided with distributor above described stuffing box, above stuffing box, be also provided with cone assembly.
Described gas feed is also provided with liquid level gauge.
Described high silicon steel composite plate sulfuric acid absorption tower is fixed on the ground by foundation bolt.
The beneficial effects of the utility model are: the utility model provides a kind of high silicon steel composite plate and high silicon steel composite plate sulfuric acid absorption tower, the utility model high silicon stainless steel composite plate can effectively prevent above-mentioned element from permeating to high surface of silicon steel, to ensure corrosion resistance and the welding technological properties of cladding by adopting S30403 stainless steel powder to do intermediate layer.Adopt high silicon steel composite plate multi-layer thickness 2.2mm, Surface bond rate 100%, the interface shearing-resistance shearing stress 238Mpa of this utility model rolling, meet the requirement of GB/T8165-2008 " stainless steel clad plate and steel band " standard R I grade completely, the corrosion of sulfuric acid effectively resisted by the surface of shell Material cladding plate plied timber height silicon steel that the sulfuric acid absorption tower adopting this composite plate to prepare contacts with the concentrated sulfuric acid, and composite plate base material carbon steel plays carrying effect.Formation like this one can resist the active alkali sulfur absorption tower equipment that concentrated sulfuric acid corrosion can bear again various load, cost relative moderate.
Accompanying drawing explanation
Fig. 1 is the utility model high silicon stainless steel composite plate structure schematic diagram.
Fig. 2 is the utility model high silicon stainless steel sulfuric acid absorption tower structural representation.
1-cylindrical shell in figure, 2-base plate, 3-skirt, 4-stuffing box, 5-distributor, 6-cone assembly, 11-liquid outlet, 12-gas feed, 13-liquid level gauge.
Detailed description of the invention
Existing composition graphs 1 pair of the utility model is further described, a kind of high silicon stainless steel composite plate, be made up of basic unit, binder course and cladding from the bottom to top, described basic unit is Q235B steel, described binder course is Ultra-low carbon S30403 stainless steel, and described cladding is XDS-2 high silicon stainless steel.
A kind of preparation method of high silicon stainless steel composite plate, comprise the following steps: be that the Q235B steel of 6mm are as base plate using thickness, surface uniform sprays the Ultra-low carbon S30403 stainless steel fine powder of 0.8mm, then cover on Ultra-low carbon S30403 stainless steel fine powder with the XDS-2 high silicon stainless steel that thickness is 2mm, common heating 1800 DEG C is to fusing viscosity flow state, pressurization fusion, then cools, and namely obtained thickness is in the high silicon stainless steel composite plate of 8.2mm.Basic unit and cladding are together with each other by intermediate layer and ensure that the metal of basic unit or nonmetalloid can not penetrate into cladding, guarantee the corrosion resistance of cladding.As the method small-scale production can meet absorption tower equipment and build the high silicon steel composite plate required, the length 6m, the width 1.5m that adopt the method can manufacture at present to meet GB/T8165-2008 " stainless steel clad plate and steel band " standard R I grade and require, Thickness ness are 8mm6+2 material is Q235B+XDS-2 scope height silicon steel composite plate.
impermeable layer and the corrosion data not with permeable formation mass percent 98% sulfuric acid in the middle of high silicon steel carbon steel 82+6XDS-2/Q235B complex plate strip
Test temperature DEG C test period h is with intermediate layer corrosion rate mm/a unrepeatered transmission corrosion rate mm/a
601680.000350.00075
802400.000520.00128
100720.00200.00361
120730.002280.00494
150740.002500.00673
2001000.063000.01042
Can be found out by upper table, the corrosion-resistant speed of composite plate with the utility model Ultra-low carbon S30403 stainless steel binder course, much smaller than the composite plate not with intermediate layer, illustrates that structure of the present utility model has corrosion resistant function.
A preparation method for high silicon steel composite plate sulfuric acid absorption tower, comprises the following steps: the high silicon steel composite board material for housing is Q235B+XDS-2, and thickness is 6+2mm, and composite plate meets standard GB/T8165-2008 requirement.Composite plate rolls as DN1400mm through veneer reeling machine processing again behind line, cutting, plane limit, and length L is the cylindrical shell of 1500mm.Cylindrical shell, after the circle of school, welds high silicon steel composite plate basic unit Q235B material according to welding procedure.After basic unit has welded, carry out 20%RT ray detection, qualified according to the requirement III grade of JB/T4730.2-2005 standard A B level.After appearance test is qualified, carry out marking for composite plate Cylinder assembly.Device fabrication requires to determine that the internal diameter of tower is DN1400mm according to technology Calculation, and the height contacted with sulfate liquid is 5971mm, equipment height overall 9679mm.
The designing requirement assembly welding group of from the flat, to distributor assembly, tower body skirt, tower top carbon steel component, is tested according to technological requirement, and qualified laggard row labels treats that overall device is assembled.
Line cutting polishing groove is carried out to cylindrical shell composite plate base plate, the standby that is up to the standards assembling assembly welding.
First cylindrical shell after the assay was approved carries out girth joint and to form a team assembly welding, and inspector carries out basic unit's assembly welding after checking and forming a team cylindrical shell the data targets such as out-of-roundness, unfitness of butt joint, angularity, linearity meet designing requirement.Carry out Welding Testing after assembly welding completes, after the data targets such as weld reinforcement, undercut, outward appearance meet designing requirement, carry out 20%RT ray detection according to the requirement of JB/T4730.2-2005 standard, qualified according to the requirement III grade of AB level.
Angle welding assembly welding is carried out with bottom base panel after Cylinder assembly completes, Welding Testing is carried out after assembly welding completes, after the data targets such as weld reinforcement, undercut, outward appearance meet designing requirement, carry out 100%PT ray detection according to the requirement of JB/T4730.5-2005 standard, require I grade qualified.
Cylindrical shell and base plate group, to after completing, carry out the line before tower body perforate.After inspector confirms scribing position according to the requirement of connection orientation, perforate is carried out to housing and polishing finishing groove, in order to adapter welding.
Cylindrical shell top vessel flange welds with Cylinder assembly and is undertaken by welding procedure, Welding Testing is carried out after assembly welding completes, after the data targets such as weld reinforcement, undercut, outward appearance meet designing requirement, carry out 100%PT ray detection according to the requirement of JB/T4730.5-2005 standard, require I grade qualified.Standby be connected with tower body top cone structure part.
Adapter with cylindrical shell perforate carry out spot welding group to, correct, inspector welds after the assay was approved.Carry out Welding Testing after assembly welding completes, after the data targets such as weld reinforcement, undercut, outward appearance meet designing requirement, carry out 100%PT ray detection according to the requirement of JB/T4730.5-2005 standard, require I grade qualified.
Cylinder inner surface cladding adopts high silicon steel welding material by technological requirement with welding between cladding, Welding Testing is carried out after having welded, after the data targets such as weld reinforcement, undercut, outward appearance meet designing requirement, carry out 100%PT ray detection according to the requirement of JB/T4730.5-2005 standard, require I grade qualified.
According to the position of production engineering specifications, welding of longitudinal seam and circumferential seam level nozzle weld is spudded in φ 6 leak hunting aperture, then at base layer exterior surface welding M10 internal thread leak detection mouth.
According to production engineering specifications, the operation of 2mm thick wide 5mm height silicon steel joint strip is carried out to welding of longitudinal seam and circumferential seam and nozzle weld inner surface.Welding between joint strip with inner surface cladding adopts argon shield to weld; Welding Testing is carried out after welding welding completes; after the data targets such as weld reinforcement, undercut, outward appearance meet designing requirement, carry out 100%PT ray detection according to the requirement of JB/T4730.5-2005 standard, require I grade qualified.
Drying nitrogen outside leak detection mouth being passed into 0.4Mpa is stopped leakage in the roof, and it is qualified for brushing the not bubbling of rare soft soap foam.
Finally assemble skirt and top cone parts, carry out the test of 0.125Mpa water pressure resistance, process of the test middle cylinder body is indeformable, do not leak, silent is qualified; Then the drying nitrogen passing into 0.4Mpa carries out air-tightness leak test, and the not bubbling of outer brush rare soft soap foam is qualified.
Docimaster carries out final inspection, and completes various survey data file.
A kind of high silicon steel composite plate sulfuric acid absorption tower, comprise cylindrical shell 1, described cylindrical shell 1 lower end is provided with base plate 2 and skirt 3, described cylindrical shell 1 is provided with liquid outlet 11 and gas feed 12, stuffing box 4 is provided with above described cylindrical shell 1, be provided with distributor 5 above described stuffing box 4, above stuffing box 4, be also provided with cone assembly 6.Described gas feed 12 is also provided with liquid level gauge 13, and described high silicon steel composite plate sulfuric acid absorption tower is fixed on the ground by foundation bolt.
The above is only preferred embodiment of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a high silicon steel composite plate, is characterized in that, is made up of from the bottom to top basic unit, binder course and cladding, and described basic unit is Q235B steel, and described binder course is Ultra-low carbon S30403 stainless steel, and described cladding is XDS-2 high silicon stainless steel.
2. a high silicon steel composite plate sulfuric acid absorption tower, is characterized in that, described sulfuric acid absorption tower adopts high silicon stainless steel composite plate according to claim 1 to make.
3. high silicon steel composite plate sulfuric acid absorption tower according to claim 2, it is characterized in that, comprise cylindrical shell (1), described cylindrical shell (1) lower end is provided with base plate (2) and skirt (3), described cylindrical shell (1) is provided with liquid outlet (11) and gas feed (12), described cylindrical shell (1) top is provided with stuffing box (4), and described stuffing box (4) top is provided with distributor (5), and stuffing box (4) top is also provided with cone assembly (6).
4. high silicon steel composite plate sulfuric acid absorption tower according to claim 3, is characterized in that, described gas feed (12) is also provided with liquid level gauge (13).
5. high silicon steel composite plate sulfuric acid absorption tower according to claim 3, is characterized in that, described high silicon steel composite plate sulfuric acid absorption tower is fixed on the ground by foundation bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520608959.3U CN204952604U (en) | 2015-08-13 | 2015-08-13 | High silicon steel composite sheet and high silicon steel composite sheet sulphuric acid absorption tower |
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| CN201520608959.3U CN204952604U (en) | 2015-08-13 | 2015-08-13 | High silicon steel composite sheet and high silicon steel composite sheet sulphuric acid absorption tower |
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| CN204952604U true CN204952604U (en) | 2016-01-13 |
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| CN201520608959.3U Expired - Fee Related CN204952604U (en) | 2015-08-13 | 2015-08-13 | High silicon steel composite sheet and high silicon steel composite sheet sulphuric acid absorption tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105194983A (en) * | 2015-08-13 | 2015-12-30 | 江苏奥祺晨特种金属材料集团有限公司 | High-silicon steel composite board, sulfuric acid absorption tower and manufacturing method of high-silicon steel composite board and sulfuric acid absorption tower |
-
2015
- 2015-08-13 CN CN201520608959.3U patent/CN204952604U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105194983A (en) * | 2015-08-13 | 2015-12-30 | 江苏奥祺晨特种金属材料集团有限公司 | High-silicon steel composite board, sulfuric acid absorption tower and manufacturing method of high-silicon steel composite board and sulfuric acid absorption tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20200813 |