CN202660582U - Stainless steel coated baffle plate door - Google Patents

Stainless steel coated baffle plate door Download PDF

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Publication number
CN202660582U
CN202660582U CN 201220320896 CN201220320896U CN202660582U CN 202660582 U CN202660582 U CN 202660582U CN 201220320896 CN201220320896 CN 201220320896 CN 201220320896 U CN201220320896 U CN 201220320896U CN 202660582 U CN202660582 U CN 202660582U
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CN
China
Prior art keywords
door
stainless steel
baffle
baffle plate
plate
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220320896
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Chinese (zh)
Inventor
孙德山
兰守立
周秀银
张永林
刘伟
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Shandong Guoshun Construction Group Co Ltd
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Shandong Guoshun Construction Group Co Ltd
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Priority to CN 201220320896 priority Critical patent/CN202660582U/en
Application granted granted Critical
Publication of CN202660582U publication Critical patent/CN202660582U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model discloses a stainless steel coated baffle plate door, in particular a baffle plate door for obstructing flue gases, and belongs to auxiliary equipment of desulphurization equipment. According to the stainless steel coated baffle plate door, a stainless steel panel is coated on the surface of a wind door board, a bearing block is arranged on an outer frame of the baffle plate door, a square seat insert bearing is fixed on the bearing block, and baffle plate door shafts which are fixed on a side surface of the wind door board pass through the square seat insert bearing; a rocker arm is arranged at the outer end of each baffle plate door shaft, and the other end of each rocker arm is in two-two connection with another one through a connecting rod; and an end head of one of the baffle plate door shafts is connected with a power output shaft of an electric actuating mechanism through a shaft coupling. The basal body of the stainless steel coated baffle plate door is made of carbon steel, and the surface through which the flue gasses pass is coated with super austenitic stainless steel, so that high mechanical strength is ensured, high corrosion resistance and high-temperature resistance are achieved, and the manufacturing cost of equipment is greatly reduced; and by the adoption of a stainless steel coating technology, the stainless steel coated baffle plate door is tight in coating and high in corrosion resistance. The technology is popularized to achieve high economic benefit and environmental benefit.

Description

Stainless steel coated baffle-plate door
Technical field
The utility model belongs to the auxiliary device of desulphurization plant, particularly cuts off the baffle door that flue gas is used.
Background technology
The coal-fired flue-gas that sintering machine of steel mill or boiler of power plant produce, advancing chimney through the air-introduced machine outlet by flue discharges, now to increase desulphurization plant, must extract flue gas from perforate on the flue, and will close with baffle door (claiming the by-pass damper door) towards the flue of chimney direction.If desulphurization plant needs maintenance, the former flue and the clean flue that enter desulphurization system all need to close, and by-pass damper is opened.At least three baffle doors of every cover desulfurizer, the flue gas that its Central Plains gas baffle door touches is dry flue gas, and temperature is more than dew-point temperature about 150 ℃, does not consider anticorrosionly, adopts carbon steel to make and gets final product, and cost is lower.What by-pass damper door and clean gas baffle door touched is wet flue gas after the desulfurization, temperature is 45 ℃~6 0 ℃, flue-gas temperature is below dew point, the globule that condenses is highly acid, pH<2, main component contains sulfuric acid, sulfurous acid, chloride and fluoride, and desulphurization system is overhauled when stopping transport even will be born 180 ℃ of cigarette Wen Gaoda, so quite harsh to the making material requirements of baffle door.The principal element of restriction baffle door selection material is three: the one, and heat resistance, the 2nd, resistance to chemical attack, the 3rd, cost.As adopt the organic materials such as carbon steel lining fiberglass (FRP) or rubber, and the resistance to chemical attack problem has solved, also less expensive, but heat resistance is poor, selects by contrast, and the steel grade of suitable above environment is the super austenitic stainless steel, but cost is very high.
The utility model content
In order to overcome existing carbon steel lining fiberglass (FRP) or rubber baffle door non-refractory, the high deficiency of whole stainless steel door cost, the utility model provides a kind of stainless steel coated baffle-plate door, this stainless steel coated baffle-plate door not only has good corrosion resistant resistance to elevated temperatures, and cost is lower.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of stainless steel coated baffle-plate door, comprise by the baffle door housing, be installed in the baffle plate door-hinge that baffle door housing both sides are parallel to each other, the two baffle plate shutter doors of single shaft that the door-plate that keeps out the wind that overturns around door-hinge forms, it is characterized in that: the door-plate surface of keeping out the wind is coated with stainless steel faceplate, bearing block is housed on the baffle door housing is fixed on square base bearing with spherical outside surface on the bearing block, the baffle plate door-hinge that is fixed on the door-plate side of keeping out the wind passes from the square base bearing with spherical outside surface, rocking arm is equipped with in each baffle plate door-hinge outer end, each rocking arm other end links to each other in twos by connecting rod, and the termination of one of them baffle plate door-hinge links to each other with the power output shaft of electric operator by shaft coupling.
On the air inlet flange of the sealing air flow-guiding mouth of the outer arch of described baffle door intake valve is housed, links to each other with connecting rod by rocking arm behind the bearing with spherical outside surface of usheing to seat of intake valve control lever connection sealing air valve drive link arch outside being fixed on baffle door.
Described baffle plate door-hinge outer surface cover has stainless steel casement, and baffle plate door-hinge and baffle door housing contact portion are equipped with the oil immersion asbestos packing.
The frame of the described door-plate that keeps out the wind is that C shaped steel blade is that carbon steel sheet is welded, the inner flue gas wetted surfaces of framework, two principal planes of baffle plate all are coated with stainless steel faceplate, stainless steel faceplate is connected with the door-plate main body spot welding of keeping out the wind, spot size 7mm, each solder joint contact area 38mm, solder joint is arranged and is plum blossom-shaped, spot pitch 120mm.
The described door-plate that keeps out the wind is welded with C type stainless steel lip limit in both sides up and down, the place, stainless steel lip limit of two adjacent air door plates is provided with sealing device, its structure is that the fixing stainless steel elastic sealing strip of bolt and press strip is housed in the same side on the both sides on C type stainless steel lip limit, the stainless steel elastic sealing strip curves 30 °, adopt Hastelloy C alloys 276 to make, material is 59Ni-15Cr-16Mo-4W-5Fc.
Described electric operator is fixed on middle part, baffle door housing side by actuator bracket, and the power output shaft of electric operator is connected with the baffle plate door-hinge by shaft coupling.
The utility model adopts carbon steel Q235 to make matrix, coat with the EN1.4529 super austenitic stainless steel of flue gas wetted surfaces with thick 1.5mm, Each answers the purpose intended to make two kinds of steel, can guarantee higher mechanical strength, can have again good corrosion resistant resistance to elevated temperatures, greatly reduce equipment manufacturing cost, be conducive to the popularization of desulfurization green technology, this equipment has adopted corresponding stainless steel coating technology in technique, accomplished the tight coating corrosion resistance and good, be convenient to processing and fabricating, the popularization of present technique has good economic benefit and environmental benefit.
Description of drawings
Fig. 1 is structural representation of the present utility model,
Fig. 2 keeps out the wind the A A of door-plate closed condition to view among Fig. 1,
Fig. 3 keeps out the wind the A A of door-plate opening to view among Fig. 1,
Fig. 4 is the door-plate surface stainless steel faceplate spot welding view of keeping out the wind,
Fig. 5 is baffle plate door-hinge stainless steel casement schematic diagram,
Fig. 6 is up and down stainless steel lip limit, limit schematic diagram of baffle plate door-plate,
Fig. 7 is two baffle plate door-plate junction sealing device schematic diagrames.
Among the figure, 1. intake valve, 2. air inlet flange, 3. sealing air flow-guiding mouth, 4. sealing air valve drive link, the bearing with spherical outside surface of 5. usheing to seat, 6. drive link bearing bracket, the door-plate that keeps out the wind on 7., 71. stainless steel faceplates, 72. plain steel, 73. stainless steel lip limits, 74. weld seams, 75. spot welding point, 77. bolts, 78. press strips, 8. lower block air door plate, 9. square base bearing with spherical outside surface, 10 bearing blocks, 11. the oil immersion asbestos packing, 12. baffle plate door-hinges, 121. stainless steel casements, 13. rocking arm, 14. connecting rods, 15. electric operators, 16. shaft coupling, 17. actuator brackets, 18. stainless steel elastic sealing strips, 19. baffle door housing
The specific embodiment
The specific embodiment of the present utility model is, as shown in the figure:
Embodiment 1, a kind of stainless steel coated baffle-plate door, comprise by baffle door housing 19, be installed in the baffle plate door-hinge 12 that baffle door housing both sides are parallel to each other, the two baffle plate shutter doors of single shaft that the door-plate that keeps out the wind that overturns around door-hinge forms, it is characterized in that: plain steel 72 surfaces of the door-plate 7 that keeps out the wind are coated with stainless steel faceplate 71, bearing block 10 is housed on the baffle door housing is fixed on square base bearing with spherical outside surface 9 on the bearing block, the baffle plate door-hinge that is fixed on the door-plate side of keeping out the wind passes from the square base bearing with spherical outside surface, rocking arm 13 is equipped with in each baffle plate door-hinge outer end, each rocking arm other end links to each other in twos by connecting rod 14, and the termination of one of them baffle plate door-hinge links to each other with the power output shaft of electric operator 15 by shaft coupling 16.
On the air inlet flange 2 of the sealing air flow-guiding mouth 3 of the outer arch of described baffle door intake valve 1 is housed, links to each other with connecting rod by rocking arm behind the bearing with spherical outside surface 5 of usheing to seat of intake valve control lever connection sealing air valve drive link 4 arch outside being fixed on baffle door.
Embodiment 1, a kind of stainless steel coated baffle-plate door, comprise by baffle door housing 19, be installed in the baffle plate door-hinge 12 that baffle door housing both sides are parallel to each other, the two baffle plate shutter doors of single shaft that the door-plate that keeps out the wind that overturns around door-hinge forms, it is characterized in that: plain steel 72 surfaces of the door-plate 7 that keeps out the wind are coated with stainless steel faceplate 71, bearing block 10 is housed on the baffle door housing is fixed on square base bearing with spherical outside surface 9 on the bearing block, the baffle plate door-hinge that is fixed on the door-plate side of keeping out the wind passes from the square base bearing with spherical outside surface, rocking arm 13 is equipped with in each baffle plate door-hinge outer end, each rocking arm other end links to each other in twos by connecting rod 14, and the termination of one of them baffle plate door-hinge links to each other with the power output shaft of electric operator 15 by shaft coupling 16.Electric operator is fixed on middle part, baffle door housing side by actuator bracket 17, and the power output shaft of electric operator is connected with the baffle plate door-hinge by shaft coupling.
Described baffle plate door-hinge outer surface cover has stainless steel casement 121, and baffle plate door-hinge and baffle door housing contact portion are equipped with the oil immersion asbestos packing.The cladding process of axle: the corrosion location of axle be blade side between the oil immersion asbestos packing, adopt the basic shaft system interference fit to inlay cover and process (seeing Fig. 5), adopt forcing press that stainless steel casement is pressed on the axle, make it firmly stable.
On the air inlet flange 2 of the sealing air flow-guiding mouth 3 of the outer arch of described baffle door intake valve 1 is housed, links to each other with connecting rod by rocking arm behind the bearing with spherical outside surface 5 of usheing to seat of intake valve control lever connection sealing air valve drive link 4 arch outside being fixed on baffle door.
The frame of the described door-plate that keeps out the wind is that C shaped steel blade is that carbon steel sheet is welded, the inner flue gas wetted surfaces of framework, two principal planes of baffle plate all are coated with stainless steel faceplate, stainless steel faceplate is connected with the door-plate main body spot welding of keeping out the wind, spot size 7mm, each solder joint contact area 38mm, spot welding point 75 is arranged and is plum blossom-shaped, spot pitch 120mm.
The described door-plate that keeps out the wind is welded with C type stainless steel lip limit 73 in both sides up and down, the lip limit is to be stretched out around the baffle plate by two strip metal materials, adopting whole 4mm corrosion resistant plate to bend forms, then weld with baffle plate, the stainless steel of the surperficial spot welding of baffle plate is pressed on the weld seam 74, this seam wants continuous welding to guarantee the tightness (seeing Fig. 6) that coats, the place, stainless steel lip limit of two adjacent air door plates is provided with sealing device, its structure is that the fixing stainless steel elastic sealing strip 18 of bolt 77 and press strip 78 is housed in the same side on the both sides on C type stainless steel lip limit, and the stainless steel elastic sealing strip curves 30 °.Its concrete structure and preparation method are the baffle plate elastic sealing structure: the thick stainless steel sealing strip of elasticity 0.5mm is adopted in the sealing between blade and the blade, between blade and the framework: Hastelloy C alloys 276, material is 59Ni-15Cr-16Mo-4W-5Fc, this material has very strong corrosion resistance, has simultaneously good elasticity.Sealing strip why adopt elastomeric material mainly be the balance multi-piece baffle plate owing to the error of machining accuracy, lever regulated error make the issuable inconsistent slit that produces of the anglec of rotation, eliminate the slit that the rigidity contact produces owing to air spots between the metal.Contact in order to make sealing strip and baffle plate lip limit form straight-line flexible, sealing strip is curved 30 ° angle, prevent the phenomenon of rigid face contact, make sealing more reliable.Owing to containing a large amount of dusts in the flue gas, when baffle door is in opening, sealing strip is subjected to washing away of dust in the flue gas, easily wearing and tearing, for ease of changing, hermetically-sealed construction (seeing Fig. 7) adopts bolt press strip fixing seal bar, when the sealing strip wearing and tearing need to change, remove bolt, take off press strip, the sealing strip that just can more renew.
The utility model adopts carbon steel Q235 to make matrix, coat with the EN1.4529 super austenitic stainless steel of flue gas wetted surfaces with thick 1.5mm, make each negative its duty of two kinds of steel, carbon steel is the structure stress spare of baffle door, bear the pressure that flow of flue gas produces, this material is by 200 ℃ of designs of flue-gas temperature, material maximum stress 81MPa, the corrosion of the sulfuric acid during coated opposing of stainless steel flue gas condensed bears water, sulfurous acid, chloride, fluoride is by corrosion life design in 15 years.With day steel 360m 2Sintering machine is example, and making a baffle door needs 4.336 tons of carbon steels, and 1.064 tons of stainless steels add up to 19.72 ten thousand yuan of material moneys, saves 69.38 ten thousand yuan of material moneys than complete with each baffle door of stainless steel.

Claims (6)

1. stainless steel coated baffle-plate door, comprise by the baffle door housing, be installed in the baffle plate door-hinge that baffle door housing both sides are parallel to each other, the two baffle plate shutter doors of single shaft that the door-plate that keeps out the wind that overturns around door-hinge forms, it is characterized in that: the door-plate surface of keeping out the wind is coated with stainless steel faceplate, bearing block is housed on the baffle door housing is fixed on square base bearing with spherical outside surface on the bearing block, the baffle plate door-hinge that is fixed on the door-plate side of keeping out the wind passes from the square base bearing with spherical outside surface, rocking arm is equipped with in each baffle plate door-hinge outer end, each rocking arm other end links to each other in twos by connecting rod, and the termination of one of them baffle plate door-hinge links to each other with the power output shaft of electric operator by shaft coupling.
2. stainless steel coated baffle-plate door according to claim 1, it is characterized in that: on the air inlet flange of the sealing air flow-guiding mouth of the outer arch of described baffle door intake valve is housed, links to each other with connecting rod by rocking arm behind the bearing with spherical outside surface of usheing to seat of intake valve control lever connection sealing air valve drive link arch outside being fixed on baffle door.
3. stainless steel coated baffle-plate door according to claim 1, it is characterized in that: described baffle plate door-hinge outer surface cover has stainless steel casement, and baffle plate door-hinge and baffle door housing contact portion are equipped with the oil immersion asbestos packing.
4. stainless steel coated baffle-plate door according to claim 1, it is characterized in that: the frame of the described door-plate that keeps out the wind is that C shaped steel blade is that carbon steel sheet is welded, the inner flue gas wetted surfaces of framework, two principal planes of baffle plate all are coated with stainless steel faceplate, stainless steel faceplate is connected with the door-plate main body spot welding of keeping out the wind, spot size 7mm, each solder joint contact area 38mm, solder joint arrange and are plum blossom-shaped, spot pitch 120mm.
5. stainless steel coated baffle-plate door according to claim 1, it is characterized in that: the described door-plate that keeps out the wind is welded with C type stainless steel lip limit in both sides up and down, the place, stainless steel lip limit of two adjacent air door plates is provided with sealing device, its structure is that the fixing stainless steel elastic sealing strip of bolt and press strip is housed in the same side on the both sides on C type stainless steel lip limit, the stainless steel elastic sealing strip curves 30 °, adopt Hastelloy C alloys 276 to make, material is 59Ni-15Cr-16Mo-4W-5Fc.
6. stainless steel coated baffle-plate door according to claim 1 is characterized in that: described electric operator is fixed on middle part, baffle door housing side by actuator bracket, and the power output shaft of electric operator is connected with the baffle plate door-hinge by shaft coupling.
CN 201220320896 2012-07-03 2012-07-03 Stainless steel coated baffle plate door Expired - Lifetime CN202660582U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220320896 CN202660582U (en) 2012-07-03 2012-07-03 Stainless steel coated baffle plate door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220320896 CN202660582U (en) 2012-07-03 2012-07-03 Stainless steel coated baffle plate door

Publications (1)

Publication Number Publication Date
CN202660582U true CN202660582U (en) 2013-01-09

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CN 201220320896 Expired - Lifetime CN202660582U (en) 2012-07-03 2012-07-03 Stainless steel coated baffle plate door

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102705853A (en) * 2012-07-03 2012-10-03 山东国舜建设集团有限公司 Stainless steel-coated baffle plate door

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102705853A (en) * 2012-07-03 2012-10-03 山东国舜建设集团有限公司 Stainless steel-coated baffle plate door

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Granted publication date: 20130109