CN103528427B - A kind of machinery brush ash removing mechanism of vertical exhaust-heat boiler - Google Patents
A kind of machinery brush ash removing mechanism of vertical exhaust-heat boiler Download PDFInfo
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- CN103528427B CN103528427B CN201310532528.9A CN201310532528A CN103528427B CN 103528427 B CN103528427 B CN 103528427B CN 201310532528 A CN201310532528 A CN 201310532528A CN 103528427 B CN103528427 B CN 103528427B
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- exchange tube
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Abstract
The invention discloses the brush ash removing mechanism of the machinery of a kind of vertical exhaust-heat boiler, comprising: several heat-exchange tubes, and the coil membrane wall structure arranged in the horizontal direction or single extended surface tube structure composition multilamellar tube bundle unit; Hanging is installed on the one or more bar shaped brush units between every two-layer tube bundle unit, is wherein provided with multiple metallic brush equably on each bar shaped brush unit, and bar shaped brush unit is along being vertically or horizontally arranged in the space between tube bundle unit; Present invention employs the reciprocating bar shaped brush unit of horizontal direction, each heat-exchange tube is responsible for ash disposal by the ash disposal face of at least 2 metallic brush, thus effectively removing the dust stratification of heat-exchange tube, being prevented effectively from dust stratification impact heat transmission, and then improve the utilization ratio of heat energy.
Description
Technical field
The present invention relates to ferroalloy calcium carbide afterheat boiler technical field, be specially the brush ash removing mechanism of machinery of a kind of vertical exhaust-heat boiler.
Background technology
According to Over About Chinese Ferroalloy Industry association relevant statistics, China is the first in the world ferroalloy big producing country, and national ferroalloy yield 2435.5 ten thousand tons in 2010 increases by 10.23% on a year-on-year basis, accounts for more than the 50% of World Ferroalloy total output. China's the ferroalloy industry about 90% product adopts mineral hot furnace electrothermal way to produce, and energy resource consumption is higher, is the key industry of national energy-saving reduction of discharging. The power consumption of mineral hot furnace accounts for the 2% of national generating capacity, and power consumption receives much concern, and the waste heat how making full use of mineral hot furnace can not only save the energy, is more beneficial for environmental conservation. Carbide is the main production raw material of polrvinyl chloride simultaneously, and China's carbide yield is 5,600,000 tons, and family more than 250 of the above carbide manufacturing enterprise of China's medium-scale, manufacturer is also mainly distributed on generating capacity and compares the west area of concentration. Carbide can produce to carry the waste heat flue gas of the 400-600 degree of 8-20g/Nm3 dust in mineral hot furnace production process, it is therefore desirable to is reclaimed by waste heat boiler.
But small granule dust in ferroalloy flue gas coming from carbide furnace is superfine, mean diameter is at 200-400nm, and the wall surface of dust is long-pending very big, reaches 10-25m2/g, very easily produces electrostatic, very easily absorption and heat-proof quality is very good. In ferroalloy flue gas coming from carbide furnace, dust content is high, it has extremely strong adhesion and very high thermal resistance, heat-proof quality, if the viscous ash of boiler heat exchange tube wall, dust stratification, the heat exchange of boiler, heat transfer efficiency will be greatly reduced, in prior art frequently with ash disposal mode have: machinery steel ball ash disposal, shock-wave ash blowing, steam soot blowing, mechanical vibrator, acetylene detonation, but all can not meet the properly functioning of this kind of boiler. And waste heat boiler heating surface space for maintenance is narrow and small, a lot of positions are even without reserved space for maintenance, repair and maintenance difficulty. The machinery brush ash removing mechanism of the vertical exhaust-heat boiler of a kind of advanced person for this applicant's specialized designs, has made bigger breakthrough in internal structure and aspect of performance and has improved.
Summary of the invention
It is an object of the invention to provide the brush ash removing mechanism of the machinery of a kind of vertical exhaust-heat boiler.
For reaching the object of the invention, the technical scheme is that the brush ash removing mechanism of the machinery of a kind of vertical exhaust-heat boiler, comprising: several heat-exchange tubes, and the coil membrane wall structure arranged in the horizontal direction or single extended surface tube structure composition multilamellar tube bundle unit; Hanging is installed on the one or more bar shaped brush units between every two-layer tube bundle unit, wherein each bar shaped brush unit is provided with multiple metallic brush equably, each heat-exchange tube is responsible for ash disposal by the ash disposal face of at least 2 metallic brush, and bar shaped brush unit is along being vertically or horizontally arranged in the space between tube bundle unit; The metal framework that bar shaped brush unit is removably secured, this metal framework axially carries out along tube bundle unit moving back and forth and have multiple traction fulcrum; Metal framework is perpendicular to, by the fulcrum at two ends, the rail plate that horizontal plane carries out installing, and it is parallel to heat-exchange tube; The driving device being connected with traction fulcrum includes multiple motor.
On the basis of technique scheme, farther include following attached technical scheme:
Described rail plate is arranged in the horizontal direction of metal framework and is perpendicular to the two ends of heat-exchange tube.
Described metal framework has the traction fulcrum of three or more than three, and is carried out sync pulling by multiple motors, and in moving process, ash handling equipment keeps vertical with heat-exchange tube.
The coil membrane wall of described heat-exchange tube composition is arranged in the horizontal direction, and bar shaped brush unit is Tong Bu with the rigid deformation of membrane wall.
Two fulcrum arranged outside at described rail plate two ends have locking structure.
Described bar shaped brush unit only has one end and is removably secured and is connected on metal framework.
Multiple motor in synchrony of described driving device are driven.
Described driving device carries out transmission by chain or screw mandrel.
There is in the middle of described rail plate one or more fixed pivot.
Described rail plate is arranged on metal framework upper end or lower end.
Active force between described metal framework and heat-exchange tube keeps constant.
Described rail plate has predeformation, and is engaged in the horizontal direction with heat-exchange tube.
It includes being perpendicular to the metal framework of boiler tube, is arranged on multiple inside the metal framework bar shaped brush unit for removing boiler tube dust stratification, the guide rail that is arranged on two groups of slider rollers of the front and back position outside metal framework and coordinates with slider roller, wherein metal framework is provided with in the guide rail extending into outside metal framework and can remove guide rail dust stratification in moving process and be positioned at slider roller horizontal direction and go forward or the metal ash disposal brush at rear.
It includes the manhole connecting with boiler exterior and making metal framework exposed at least partly, wherein each bar shaped brush unit is detachably fixed to metal framework one end and includes bonding jumper or metal tube and be arranged on multiple metallic brush of bonding jumper or metal tube, and bonding jumper or metal tube are connected with metallic brush by buckle or bolt.
Present invention have the advantage that
1) suitable in the cooperation between multiple overlapping modularity boiler structure and multiple vertical type modules installed, save and required floor space is installed.
2) have employed multiple vertical type module, make flue gas form air-flow from top to bottom in the vertical direction of boiler, be mutually perpendicular to the bearing of trend of heat-exchange tube, heating efficiency is greatly improved.
3) have employed horizontally disposed heat-exchange tube, effectively prevent the fluctuating pressure differences at heat-exchange tube two ends so that the pressure remained steady born that tubing is in operation, improve the stability of steam generator system.
4) have employed the reciprocating bar shaped brush unit of horizontal direction, each heat-exchange tube is responsible for ash disposal by the ash disposal face of at least 2 metallic brush, thus effectively removing the dust stratification of heat-exchange tube, being prevented effectively from dust stratification impact heat transmission, and then improve the utilization ratio of heat energy.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the internal structure schematic diagram of the present invention.
Fig. 2 is the structural representation of heat-exchange tube and ash handling equipment in the present invention.
Fig. 3 is the side-looking structural representation of ash handling equipment in the present invention.
Fig. 4 is the structural representation of actuating device in the present invention.
Fig. 5 is the structural representation of ash handling equipment, actuating device, driving device in this utility model, and wherein actuating device is belt transmission, and driving device is dual power source.
Fig. 6 is the structural representation of ash handling equipment, actuating device, driving device in this utility model, and wherein actuating device is chain drive, and driving device is dual power source.
Fig. 7 is the structural representation of ash handling equipment, actuating device, driving device in this utility model, and wherein actuating device is lead screw transmission, and driving device is dual power source.
Detailed description of the invention
Embodiment: with reference to shown in Fig. 1-7, the invention provides the specific embodiment of the brush ash removing mechanism of the machinery of a kind of vertical exhaust-heat boiler, comprising: Vertical Steel structural frame 10, it is fixed in Vertical Steel structural frame 10 and there is the exhaust gases passes 20 of air inlet pipe 22 and escape pipe 24 at two ends, between air inlet pipe 22 and escape pipe 24 and detachably along the vertical type module 30 of three or more than three of vertical direction arrangement, wherein each vertical type module 30 all includes the heat-exchange tube 32 that multiple horizontal direction extends, an ash handling equipment 40 of described heat-exchange tube 32 superficial dust is back and forth removed for horizontal direction, for making the reciprocating actuating device 50 of ash handling equipment, the power set 60 of power are provided to actuating device. there is between adjacent two vertical type modules the control unit of snap-in structure, hydraulic control device and electrical control power set or the hydraulic control device that can mutually dismantle. horizontal direction herein is parallel with mounting plane (ground) direction, and vertical direction or vertical direction are vertical with mounting plane (ground) direction, and direction illustrates that the relative position relation being an illustration for element does not limit its protection domain.
Vertical type module 30 is additionally included in vertical type square and connects up the coil membrane wall of adjacent two heat-exchange tubes 32 and for fixing the fixed mount 34 of heat-exchange tube 32, wherein coil membrane wall and adjacent two heat-exchange tubes 32 are collectively forming the deashing passage for guiding metallic brush 44 to move, deashing passage is that horizontal direction extends, to ensure that metallic brush 44 moves back and forth in the horizontal direction without departing from track. The end surface shape of vertical type module 30 is axisymmetric, is again centrosymmetric (as square, rectangle), it is possible to traditional horizontal block combiner. The number of vertical type module 30 is preferably 3-15, and the flue-gas temperature to guarantee outlet is reduced to suitable temperature, such as 100 degree. Each heat-exchange tube 32 abuts with at least 2 metallic brush 44 simultaneously and contacts.
Every heat-exchange tube 32 is vertically connected up and down by elbow, pipe straight section place or pipe straight section and elbow Welding flat steel, make coil membrane wall, the length of every heat-exchange tube 32 is more than 1.5m, and the spacing of every two adjacent exchange tubes, namely the width of coil membrane wall is more than 3cm, to house metallic brush.Heat-exchange tube adopts coil arrangement, and inside has water or other liquid carries out heat exchange, and liquid flow direction and flue gas from top to bottom in opposite direction, namely from lower to upper, and formation counter current heat exchange. The integrated support steel structure of fixed mount 34 is with the heat-exchange tube 32 in support level direction. Heat-exchange tube 32 can divide multiple row to arrange, and each column is fixed by fixed mount 34 and Vertical Steel structural frame 10. Ash handling equipment 40 is Tong Bu with the rigid deformation of coil membrane wall, it is ensured that will not block or produce bigger frictional force between ash disposal rack and coil membrane wall. There is at least one fixed pivot with Reducing distortion in the middle part of heat-exchange tube.
Ash handling equipment 40 at least includes being positioned at the metal framework 42 outside described heat-exchange tube 32, it is detachably fixed to metal framework 42 one end and between adjacent exchange tubes 32 and dismountable multiple bar shaped brush unit 44, it is positioned at several slider rollers 46 outside metal framework 42, guide rail dust stratification can be removed and be positioned at the metal ash disposal brush 43 above or below slider roller 46, it is arranged on metal framework 42 and is connected with actuating device 50 and more than at least three traction fulcrum 48, and connect with boiler exterior and make metal framework 42 exposed at least partly to carry out the manhole 400 overhauled. wherein bar shaped brush unit 44 includes bonding jumper or metal tube 422 and is arranged on bonding jumper or multiple metallic brush 45 of metal tube 422 both sides, and bonding jumper or metal tube 422 are connected with metallic brush 45 by buckle or bolt 49. in order to fix more metallic brush 45 at same bonding jumper or metal tube 422, as shown in Figure 4, pressing plate can be passed through or press strip 47 carries out layering and fixes. metal framework 42 is preferably the metal framework of Intermediate Gray grid or is called rack frame. between described metal framework 42 and heat-exchange tube 32, space is uniform, and metal framework 42 is positioned in a plane. metallic brush 45 is that fluffy tinsel is constituted, have certain amount of deflection and can crimp, be shaped as annulus or elliptical ring. fixed mount 34 has several rail plates 340 coordinating with slider roller 46 and being positioned at outside exhaust gases passes 20, and membrane wall and adjacent two heat-exchange tubes 32 are collectively forming the ash disposal passage for guiding metallic brush 45 to move, ash disposal passage is that horizontal direction extends, to ensure that metallic brush 45 moves back and forth in the horizontal direction without departing from track. ash handling equipment 40 makes every heat-exchange tube 32 be responsible for ash disposal by the ash disposal face of at least 2 metallic brush 45, and metal framework 42 is driven traction by motor, and the metallic brush 45 of ash handling equipment 40 can move back and forth along the horizontal direction of heat-exchange tube 32. bar shaped brush unit 44 and metallic brush 45 all can be dismantled, and overhauled by manhole 400.
Actuating device 50 includes drive, and is connected with traction fulcrum 48 by steel wire or belt or the drive mechanism such as chain or screw mandrel. With reference to shown in Fig. 4, actuating device 50 is belt transmission, is coordinated with the rail plate 340 of fixed mount 34 by the pulley 46 of deashing unit 40, and the two ends limited location guard block 342 of rail plate 340 realizes spacing, and driving device 60 is a motor. And Fig. 5 and Fig. 4 is substantially similar, only driving device 60 is different, and this driving device 60 is two motors. In figure 6, actuating device 500 is chain or wire rope gearing, realizes moving back and forth by drawing ash handling equipment 40, and driving device 60 is two motors, to coordinate transmission with two drives 52.In the figure 7, actuating device 510 is lead screw transmission, has the chute coordinated with leading screw 510 in ash handling equipment 40, realizes moving back and forth of ash handling equipment 40 by leading screw with coordinating of chute, and driving device 60 is two motors, to coordinate transmission with two drives 520. It is achieved in being carried out traction by one or more motors and synchronizes movable, in moving process, metal framework 42 keeps vertical being achieved in be undertaken drawing Tong Bu moving forward and backward by one or more motors with heat-exchange tube 32, and in moving process, metal framework 42 keeps vertical with heat-exchange tube 32.
Hydraulic control device is in order to control/to monitor the hydraulic pressure between vertical type module, and can connect control unit. Control unit includes single-chip microcomputer or microprocessor, and by multiple different types of sensors, is monitored such as displacement transducer, velocity sensor, limit sensors etc., effectively prevent the faults such as the locking in running, inefficacy, damage.
The present invention, by multiple overlapping vertical type modules installed, is greatly saved and installs required floor space, and make flue gas form air-flow from top to bottom in the vertical direction of boiler, be mutually perpendicular to the heat-exchange tube of heat exchange module, heat utilization ratio is greatly improved. Have employed horizontally disposed heat-exchange tube, effectively prevent the fluctuating pressure differences at heat-exchange tube two ends so that the pressure remained steady that tubing is in operation, improve the stability of steam generator system. Present invention employs netted ash handling equipment, each heat-exchange tube is responsible for ash disposal by the ash disposal face of at least 2 metallic brush, thus effectively removing the dust stratification of every heat-exchange tube, being prevented effectively from dust stratification impact heat transmission, and then improve the utilization ratio of heat energy.
Certain above-described embodiment only for technology design and the feature of the present invention are described, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this. All equivalent transformations done according to the spirit of main technical schemes of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (10)
1. the brush ash removing mechanism of the machinery of a vertical exhaust-heat boiler module, it is characterised in that comprising:
Described vertical exhaust-heat boiler structure includes: Vertical Steel structural frame, it is fixed on the air inlet pipe of Vertical Steel structural frame upper end, it is fixed on the escape pipe of Vertical Steel structural frame lower end, between air inlet pipe and escape pipe and dismountable vertical type module of more than three along vertical direction arrangement, wherein, each vertical type module all includes multiple horizontally extending heat-exchange tube, and for the reciprocal deashing device removing described heat-exchange tube superficial dust in the horizontal direction, for making the reciprocating actuating device of deashing device, the power set of power are provided to actuating device, the coil membrane wall structure composition multilamellar tube bundle unit that heat-exchange tube arranges in the horizontal direction,
Hanging is installed on the one or more bar shaped brush units between every two-layer tube bundle unit, wherein each bar shaped brush unit is provided with multiple metallic brush equably, each heat-exchange tube is responsible for ash disposal by the ash disposal face of at least 2 metallic brush, and bar shaped brush unit is along being vertically or horizontally arranged in the space between tube bundle unit;
The metal framework that bar shaped brush unit is removably secured, this metal framework axially carries out along tube bundle unit moving back and forth and have multiple traction fulcrum;
Metal framework is perpendicular to, by the fulcrum at two ends, the rail plate that horizontal plane carries out installing, and it is parallel to heat-exchange tube;
The driving device being connected with traction fulcrum includes multiple motor;
Guide rail structure, including being perpendicular to the metal framework of heat-exchange tube, being arranged on multiple inside the metal framework bar shaped brush unit for removing heat-exchange tube dust stratification, the guide rail that is arranged on two groups of slider rollers of the front and back position outside metal framework and coordinates with slider roller, wherein metal framework are provided with in the guide rail extending into outside metal framework and can remove guide rail dust stratification in moving process and be positioned at slider roller horizontal direction and go forward or the metal ash disposal brush at rear;
Boiler cleaning brush parts, each bar shaped brush unit is detachably fixed to metal framework one end and includes bonding jumper or metal tube and be arranged on multiple metallic brush of bonding jumper or metal tube, and bonding jumper or metal tube are connected with metallic brush by buckle or bolt.
2. the brush ash removing mechanism of machinery according to claim 1, it is characterised in that: described rail plate is arranged in the horizontal direction of metal framework and is perpendicular to the two ends of heat-exchange tube.
3. the brush ash removing mechanism of machinery according to claim 1, it is characterised in that: described metal framework has the traction fulcrum of more than three, and is carried out sync pulling by multiple motors, and in moving process, bar shaped brush unit keeps vertical with heat-exchange tube.
4. the brush ash removing mechanism of machinery according to claim 1, it is characterised in that: the coil membrane wall of described heat-exchange tube composition is arranged in the horizontal direction, and the movement of metal framework is Tong Bu with the rigid deformation of membrane wall.
5. the brush ash removing mechanism of machinery according to claim 1, it is characterised in that: two fulcrum arranged outside at described rail plate two ends have locking structure.
6. the brush ash removing mechanism of machinery according to claim 1, it is characterised in that: described bar shaped brush unit only has one end and is removably secured and is connected on metal framework.
7. the brush ash removing mechanism of machinery according to claim 1, it is characterised in that: multiple motor in synchrony of described driving device are driven.
8. the brush ash removing mechanism of machinery according to claim 1, it is characterised in that: described driving device carries out transmission by chain or screw mandrel.
9. the brush ash removing mechanism of machinery according to claim 1, it is characterised in that: described rail plate is arranged on metal framework upper end or lower end.
10. the brush ash removing mechanism of machinery according to claim 1, it is characterised in that: described rail plate has predeformation, and is engaged in the horizontal direction with heat-exchange tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310532528.9A CN103528427B (en) | 2013-10-31 | 2013-10-31 | A kind of machinery brush ash removing mechanism of vertical exhaust-heat boiler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310532528.9A CN103528427B (en) | 2013-10-31 | 2013-10-31 | A kind of machinery brush ash removing mechanism of vertical exhaust-heat boiler |
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| CN103528427A CN103528427A (en) | 2014-01-22 |
| CN103528427B true CN103528427B (en) | 2016-06-08 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374230B (en) * | 2014-10-24 | 2017-01-18 | 中材节能股份有限公司 | Dust removing device for finned tube exchanger |
| CN104296592B (en) * | 2014-10-27 | 2016-05-11 | 宁夏天纵泓光余热发电技术有限公司 | Mechanical airflow formula exchanging pipe of boiler by waste clearing apparatus |
| CN106247361B (en) * | 2016-09-30 | 2018-06-15 | 苏州恩闻信息科技有限公司 | A kind of special deashing device of horizontal mineral hot furnace waste heat boiler |
| CN106288933B (en) * | 2016-09-30 | 2019-04-30 | 苏州恩闻信息科技有限公司 | Horizontal mineral hot furnace waste heat boiler with the deashing device containing elastic deashing rag |
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| CN202521621U (en) * | 2012-03-05 | 2012-11-07 | 大连易世达新能源发展股份有限公司 | Ash removal device of waste heat boiler |
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| EP0774640A1 (en) * | 1995-11-15 | 1997-05-21 | Wehrle-Werk Ag | Pipe cleaning device |
| CN101539299A (en) * | 2009-05-01 | 2009-09-23 | 青海物通（集团）实业有限公司 | Method for cleaning soot in waste heat boiler for generating electricity by ferrosilicon smelting flue gas waste heat |
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