CN103471409A - Dual-pressure vertical submerged arc furnace waste heat boiler with membrane wall heat transfer components - Google Patents

Dual-pressure vertical submerged arc furnace waste heat boiler with membrane wall heat transfer components Download PDF

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Publication number
CN103471409A
CN103471409A CN2013104176925A CN201310417692A CN103471409A CN 103471409 A CN103471409 A CN 103471409A CN 2013104176925 A CN2013104176925 A CN 2013104176925A CN 201310417692 A CN201310417692 A CN 201310417692A CN 103471409 A CN103471409 A CN 103471409A
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China
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heat
membrane wall
steel wire
exchanging component
heat transfer
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CN2013104176925A
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CN103471409B (en
Inventor
穆祥
王西来
董伟胜
刘文艳
解仁
刘朝晖
苏新国
王淑娟
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Ningxia Tianzong Hongguang Cogeneration Technology Co Ltd
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Ningxia Tianzong Hongguang Cogeneration Technology Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

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Abstract

A dual-pressure vertical submerged arc furnace waste heat boiler with membrane wall heat transfer components comprises a support, steam drums and a convection shaft. Super-heaters, evaporators and economizers are arranged successively in the convection shaft from a flue gas inlet to a flue gas outlet and are mainly composed of inlet and outlet headers and membrane wall heat transfer components. Inlet ends of the membrane wall heat transfer components are connected with the inlet headers, and outlet ends of the membrane wall heat transfer components are connected with the outlet headers. Each of the membrane wall heat transfer component comprises at least two heat transfer tubes and a heat transfer metal plate. The heat transfer tubes are arranged in parallel, and the heat transfer metal plates are arranged between the heat transfer tubes and welded with the two heat transfer tubes. Brusher soot cleaning devices comprising external transmission apparatuses and internal sooth cleaning apparatuses are arranged on the membrane wall heat transfer components. Each of the internal sooth cleaning apparatuses comprises a beam, two clamping arms and a guide mechanism. The two clamping arms are provided with metal steel wire cleaning balls and are arranged on two sides of the membrane wall heat transfer components and in contact with the heat transfer metal plates.

Description

Two vertical ore deposit heat waste heat boilers of pressing with the membrane wall heat-exchanging component
Technical field
The present invention relates to a kind of waste heat boiler, particularly a kind of two vertical ore deposit heat waste heat boilers of pressing with the membrane wall heat-exchanging component.
Background technology
At present, need a large amount of energy resource consumptions in various field of industrial productions, in production process by various thermal power transfer equipment, with answering in equipment and produce and unemployed heat energy with chemistry side by equipment, and can produce in process of production a large amount of various forms of waste heats, the source of waste heat mainly contains the industrial exhaust gas waste heat, the waste heat of high-temperature product and slag, the waste heat of cooling medium, the heat of abandoning generated in process is answered by chemistry side, combustible exhaust gas, waste material, the heat energy of waste liquid and waste vapour, the waste heat of waste water, and the evenly heat efficiency of Industrial Boiler only has 67 ﹪, remaining energy passes through the useless fume emission of high temperature in the middle of atmosphere, cause great waste.
The UTILIZATION OF VESIDUAL HEAT IN of Boiler Manufacturing Industry is an important topic at present energy-conservation, and it has very high economic benefit and social benefit.For example, the smelting furnace UTILIZATION OF VESIDUAL HEAT IN in Boiler Manufacturing Industry, be converted to other energy by the used heat that smelting furnace is discharged, as electric energy, steam-energy or directly go to drive other plant equipment and heat supply as power.
Mineral hot furnace is minute 3 kinds of type of furnaces generally, and the first is Totally-enclosed-type, and the second is that low hood is type semienclosed, and the third is the uncovered type of high petticoat pipe.The semi-hermetic stove is because the fuel gas that it contains is very little, and temperature is up to more than 400 ℃, and the air of sneaking into from fire door is more, and exhaust gas volumn is larger.Be applicable to adopt the residual heat boiler for exchanging heat generating, the thermal efficiency can reach 26% ~ 28% left and right, but difficult point is to contain a large amount of SiO in the dust of flue gas 2, granularity of dust all is less than 5 microns, is less than to account for 77% below 2 microns.The viscosity of these dust is very large, is very easy to stick to chimney, flue, metal tube surface, causes the heat exchange efficiency of heat-transfer surface sharply to reduce.The current deashing device of waste heat boiler heating surface, mainly contain vibration dust-cleaning, steel ball deashing, steam (air) and blow ash, shock-wave ash-clearing etc.But these purge modes are all inapplicable through actual verification.
For example, it is CN201382702Y for " a kind of power generation boiler for low-temperature flue gas waste heat in avasite heat furnace " publication number that China national Department of Intellectual Property discloses a key name on January 13rd, 2010, and its content is: this device is comprised of boiler body, gas approach, superheater, evaporating area, soft water heater, water preheater, forced circulation pump, mechanical shaking device, snakelike tube bank, exhanst gas outlet.Wherein boiler body is transversal flow horizontal channel structure, and the both sides of boiler body arrange respectively gas approach, exhanst gas outlet, on boiler body, from gas approach, to exhanst gas outlet, sets gradually superheater, evaporating area, soft water heater and water preheater; Bottom, boiler body lower end arranges forced circulation pump, and the water circulation use forced circulation pump of evaporating area carries out forced circulation; The heating surface of boiler body adopts the snakelike tube bank of heavy wall of the vertical suspension arrangement of minor diameter, and wrong row's mode is arranged; The mechanical shaking device that carries out deashing is set on boiler heating surface.The weak point that this waste heat boiler exists is: heating surface adopts wrong row's mode to arrange, easy dust stratification, adopt mechanical shaking device to carry out deashing, between, Electrostatic Absorption good for this nanoscale of mineral hot furnace, bonding capacity and particulate, the dust ash-removal effect of high adsorption capacity, unsuitable sedimentation is poor, when in flue gas, entrained dust deposit is on heat exchanger tube, vibration dust-cleaning can not be removed it, and the lighter causes heat transfer effect to reduce, when serious, exhaust gases passes is stopped up fully, cause the boiler forced outage.
" residual heat boiler of steel ball dedusting type ore heat furnace " publication number that China national Department of Intellectual Property announces is CN101701775A.This invention is to adopt furnace roof to be furnished with a steel ball sowing apparatus, steel ball separated and collected device is set below the furnace bottom ash bucket and carries out deashing.The weak point of this invention is: the steel ball sowing inequality of this device easily causes the dust stratification skewness on heating surface, affects the heat transfer efficiency of heat exchanger, dust stratification even may occur and form the situation that bulk lost efficacy heating surface in part, forms potential safety hazard.In addition, steel ball circulates in soot cleaning system, the caking that very easily gets rusty, unites during interim storage, contains especially H in flue gas 2o, SO 2situation Deng the ash content of gas, complicated ingredient.Once steel ball caking just is difficult to eliminate, can stop up steel ball sowing spout, steel ball conduit, maintenance difficulty large.
Summary of the invention
In view of this, be necessary to provide the two vertical ore deposit heat waste heat boilers of pressing with the membrane wall heat-exchanging component that a kind of production cost is low, deashing thorough, UTILIZATION OF VESIDUAL HEAT IN efficiency is high.
A kind of two vertical ore deposit heat waste heat boilers of pressing with the membrane wall heat-exchanging component, comprise the support formed by column and crossbeam, inferior middle pressure drum, low-pressure drum reaches flow through shaft, inferior middle pressure drum, low-pressure drum is arranged on support, flow through shaft is arranged in support, an end on the housing of flow through shaft is connected to smoke inlet, the other end of housing connects exhanst gas outlet, to in flow through shaft by smoke inlet to exhanst gas outlet be provided with successively be fixed on beam time in the pressure superheater, inferior middle pressure evaporimeter, inferior middle pressure economizer, low-pressure superheater, low pressure evaporator and low-pressure coal saver, described superheater, evaporimeter and economizer are mainly by advancing, outlet header and membrane wall heat-exchanging component form, the arrival end of membrane wall heat-exchanging component is connected with the entrance header, the port of export of membrane wall heat-exchanging component is connected with outlet header, and advance, outlet header all is located on the crossbeam outer to the flow through shaft housing, the membrane wall heat-exchanging component comprises that at least two heat exchanger tubes and heat pass metallic plate, between heat exchanger tube, be arranged side by side and adjacent two heat exchanger tubes in the port of export of a heat exchanger tube with the arrival end of another heat exchanger tube, be communicated with, heat biography metallic plate is arranged between heat exchanger tube and with two heat exchanger tubes and welds, and it is corresponding with the length of heat exchanger tube that heat passes metallic plate.Establish the brusher deashing device on the membrane wall heat-exchanging component, described brusher deashing device comprises external transmission device and inner deashing device, described external transmission device is connected with inner deashing device, inner deashing device comprises crossbeam, two clamping limb and guides that are provided with the metal steel wire cleaning ball, two clamping limbs with beam vertical, be fixedly connected with and two clamping limbs parallel, two clamping limbs are clamped in the both sides of membrane wall heat-exchanging component and contact with heat exchanger tube and the heat biography metallic plate of membrane wall heat-exchanging component, clamping limb is mutually vertical with heat exchanger tube and the heat biography metallic plate of membrane wall heat-exchanging component, the both sides of membrane wall heat-exchanging component all arrange guide, and guide is positioned at the below of clamping limb, and clamping limb contacts with guide, and the channeling direction of guide is identical with the bearing of trend that heat exchanger tube and heat pass metallic plate.
The present invention compared with prior art has following advantage: described superheater, in evaporimeter and economizer, the membrane wall heat-exchanging component mainly consists of heat exchanger tube and heat biography metallic plate, between heat exchanger tube, be arranged side by side and adjacent two heat exchanger tubes in the port of export of a heat exchanger tube with the arrival end of another heat exchanger tube, be communicated with, heat biography metallic plate is arranged between heat exchanger tube and with two heat exchanger tubes and welds, it is corresponding with the length of heat exchanger tube that heat passes metallic plate, so can increase the heat exchange area of membrane wall heat-exchanging component, establish the brusher deashing device on the membrane wall heat-exchanging component simultaneously, the external transmission device of described brusher deashing device is connected with inner deashing device, two clamping limbs of inner deashing device are clamped in the both sides of membrane wall heat-exchanging component and contact with heat exchanger tube and the heat biography metallic plate of membrane wall heat-exchanging component, clamping limb is mutually vertical with heat exchanger tube and the heat biography metallic plate of membrane wall heat-exchanging component, the both sides of membrane wall heat-exchanging component all arrange guide, guide is positioned at the below of clamping limb, and clamping limb contacts with guide, metal steel wire cleaning ball on clamping limb passes metallic plate with heat exchanger tube and heat and directly contacts, dust is brushed off, the heat transfer coefficient of mineral hot furnace waste heat boiler is improved.Visible the present invention can improve steam production, reduces the toxic emission temperature.In addition, the present invention has realized external transmission device and the mode that inner deashing device separates interlock, has avoided arranging the problem of too much seal, simple to operate, improved ash-removal effect, saved operating cost.
The accompanying drawing explanation
Accompanying drawing 1 is the two structural representations of vertical ore deposit heat with waste heat boiler of pressing with the membrane wall heat-exchanging component of a better embodiment.
Accompanying drawing 2 is structural representations of membrane wall heat-exchanging component in Fig. 1.
Accompanying drawing 3 is structural representations of inner deashing device in Fig. 1.
Accompanying drawing 4 is structural representations of steel wire lump state keeper in Fig. 3.
Accompanying drawing 5 is another schematic diagrames of steel wire lump state keeper structure in Fig. 3.
Accompanying drawing 6 is structural representations of holder and support member in Fig. 3.
Accompanying drawing 7 is the structural representations with steel wire lump state keeper structure of fitting.
In figure: with two vertical ore deposit heat waste heat boilers 10 of pressing of membrane wall heat-exchanging component, support 20, inferior middle pressure drum 30, low-pressure drum 40, to flow through shaft 50, housing 51, inferior middle pressure superheater 52, entrance header 520, outlet header 521, membrane wall heat-exchanging component 522, heat exchanger tube 5220, heat passes metallic plate 5221, inferior middle pressure evaporimeter 53, entrance header 530, outlet header 531, membrane wall heat-exchanging component 532, heat exchanger tube 5320, heat passes metallic plate 5321, inferior middle pressure economizer 54, entrance header 540, outlet header 541, membrane wall heat-exchanging component 542, heat exchanger tube 5420, heat passes metallic plate 5421, low-pressure superheater 55, entrance header 550, outlet header 551, membrane wall heat-exchanging component 552, heat exchanger tube 5520, heat passes metallic plate 5521, low pressure evaporator 56, entrance header 560, outlet header 561, membrane wall heat-exchanging component 562, heat exchanger tube 5620, heat passes metallic plate 5621, low-pressure coal saver 57, entrance header 570, outlet header 571, membrane wall heat-exchanging component 572, heat exchanger tube 5720, heat passes metallic plate 5721, brusher deashing device 60, , external transmission device 61, inner deashing device 62, crossbeam 620, metal steel wire cleaning ball 621, clamping limb 622, holder 6220, fixing hole 6221, locating slot 6222, guide 623, steel wire lump state keeper 624, support member 6240, keeper 62400, elastic component 62401, fitting 6241, fixing hole 6242, arc fitting 6243, smoke inlet 80, exhanst gas outlet 81.
The specific embodiment
Referring to Fig. 1, with membrane wall heat-exchanging component two press vertical ore deposit heat with waste heat boiler 10 comprise the support 20 that formed by column and crossbeam, inferior in pressure drum 30, low-pressure drum 40, to flow through shaft 50 and brusher deashing device 60.Inferior middle pressure drum 30, low-pressure drum 40 are arranged on support 20, flow through shaft 50 is arranged in support 20, an end to the housing 51 of flow through shaft 50 connects smoke inlet 80, the other end of housing 51 connects exhanst gas outlet 81, to the housing 51 of flow through shaft 50, be wherein furnace wall, establish the rock wool heat-preservation material in the middle of inside and outside two backplates, the side of inner casing in the well chamber is provided with refractory concrete; To in flow through shaft 50, by smoke inlet 80, to exhanst gas outlet 81, being provided with successively and being fixed on beam, described superheater, evaporimeter and economizer mainly are comprised of import and export header and membrane wall heat-exchanging component.Inferior middle pressure superheater 52, inferior middle pressure evaporimeter 53, inferior middle pressure economizer 54, low-pressure superheater 55, described brusher deashing device 60 all is installed on low pressure evaporator 56 and low-pressure coal saver 57, described brusher deashing device 60 comprises external transmission device 61 and inner deashing device 62, external transmission device 61 is fixed on support 20, and external transmission device 61 is connected with inner deashing device 62, inner deashing device 62 is pressed superheater 52 in corresponding be arranged on time respectively, inferior middle pressure evaporimeter 53, inferior middle pressure economizer 54, low-pressure superheater 55, on low pressure evaporator 56 and low-pressure coal saver 57.External transmission device 61 can be motor or hydraulic jack, when external transmission device 61 is motor, adopts lead screw transmission mode, wire rope gearing mode, sprocket wheel chain transmission mode to be connected with inner deashing device 62.
The entrance header 540 of inferior middle pressure economizer 54 is connected with supply line, the entrance header 540 of inferior middle pressure economizer 54 is passed through time middle membrane wall heat-exchanging component 542 of economizer 54 of pressing and is connected with time middle outlet header 541 of economizer 54 of pressing, and the outlet header 541 of inferior middle pressure economizer 54 also is connected with inferior middle pressure drum 30 by pipeline; Inferior middle pressure drum 30 is connected with the entrance header 530 of inferior middle pressure evaporimeter 53 by down-comer, the entrance header 530 of inferior middle pressure evaporimeter 53 is passed through time middle membrane wall heat-exchanging component 532 of evaporimeter 53 of pressing and is connected with time middle outlet header 531 of evaporimeter 53 of pressing, the outlet header 531 of inferior middle pressure evaporimeter 53 also is connected with inferior middle pressure drum 30 by tedge, forms closed circuit; Inferior middle pressure drum 30 also is connected with the entrance header 520 of inferior middle pressure superheater 52 by pipeline, the entrance header 520 of inferior middle pressure superheater 52 is passed through time middle membrane wall heat-exchanging component 522 of superheater 52 of pressing and is connected with time middle outlet header 521 of superheater 52 of pressing, the outlet header 521 of inferior middle pressure superheater 52 is also sent by pipeline,, as main vapour for pushing turbine generating or production and application; The entrance header 570 of low-pressure coal saver 57 is connected with supply line, the entrance header 570 of low-pressure coal saver 57 also is connected with the outlet header 571 of low-pressure coal saver 57 by the membrane wall heat-exchanging component 572 of low-pressure coal saver 57, and the outlet header 571 of low-pressure coal saver 57 also is connected with low-pressure drum 40 by pipeline; Low-pressure drum 40 is connected with the entrance header 560 of low pressure evaporator 56 by down-comer, the entrance header 560 of low pressure evaporator 56 also is connected with the outlet header 561 of low pressure evaporator 56 by the membrane wall heat-exchanging component 562 of low pressure evaporator 56, the outlet header 561 of low pressure evaporator 56 also is connected with low-pressure drum 40 by tedge, forms closed circuit; Low-pressure drum 40 also is connected with the entrance header 550 of low-pressure superheater 55 by pipeline, the entrance header 550 of low-pressure superheater 55 also is connected with the outlet header 551 of low-pressure superheater 55 by the membrane wall heat-exchanging component 552 of low-pressure superheater 55, the outlet header 551 of low-pressure superheater 55 is also sent by pipeline, as filling, for pushing turbine, generates electricity or production and application.Wherein, above-mentioned entrance header, outlet header all are located on the crossbeam outer to the housing 51 of flow through shaft 50, and above-mentioned each membrane wall heat-exchanging component is arranged in the housing 51 to flow through shaft 50, and the structure of above-mentioned each membrane wall heat-exchanging component is identical.
Further, membrane wall heat-exchanging component 522 comprises that at least two heat exchanger tubes 5220 and heat pass metallic plate 5221, membrane wall heat-exchanging component 532 comprises that at least two heat exchanger tubes 5320 and heat pass metallic plate 5321, membrane wall heat-exchanging component 542 comprises that at least two heat exchanger tubes 5420 and heat pass metallic plate 5421, membrane wall heat-exchanging component 552 comprises that at least two heat exchanger tubes 5520 and heat pass metallic plate 5521, membrane wall heat-exchanging component 562 comprises that at least two heat exchanger tubes 5620 and heat pass metallic plate 5621, membrane wall heat-exchanging component 572 comprises that at least two heat exchanger tubes 5720 and heat pass metallic plate 5721, below to press the membrane wall heat-exchanging component 542 in economizer 54 in proper order be example, further illustrate membrane wall heat-exchanging component structure, referring to Fig. 2, membrane wall heat-exchanging component 542 comprises that at least two heat exchanger tubes 5420 and heat pass metallic plate 5421, between heat exchanger tube 5420, be arranged side by side and adjacent two heat exchanger tubes 5420 in the port of export of a heat exchanger tube with the arrival end of another heat exchanger tube 5420, be communicated with, heat biography metallic plate 5421 is arranged between heat exchanger tube 5420 and with two heat exchanger tubes 5420 and welds, and it is corresponding with the length of heat exchanger tube 5420 that heat passes metallic plate 5421.The inside deashing device 62 of brusher deashing device 60 slidably is arranged on membrane wall heat-exchanging component 542.
Wherein, please refer to the inner deashing device 62 of Fig. 3 and comprise crossbeam 620, two clamping limb 622 and guides 623 that are provided with metal steel wire cleaning ball 621, two clamping limbs 622 and crossbeam 620 be vertical be fixedly connected with and two clamping limbs 622 parallel, two clamping limbs 622 are clamped in the both sides of membrane wall heat-exchanging component 542 and contact with heat exchanger tube 5420 and the heat biography metallic plate 5421 of membrane wall heat-exchanging component 542, and clamping limb 622 is mutually vertical with heat exchanger tube 5420 and the heat biography metallic plate 5421 of membrane wall heat-exchanging component 542; The both sides of membrane wall heat-exchanging component 542 all arrange guide 623, guide 623 is positioned at the below of clamping limb 622, and clamping limb 622 contacts with guide 623, the channeling direction of guide 623 is identical with the bearing of trend that heat exchanger tube 5420 and heat pass metallic plate 5421.
Clamping limb 622 comprises two holders 6220, inner deashing device 62 also comprises steel wire lump state keeper 624, two ends and the metal steel wire cleaning ball 621 of steel wire lump state keeper 624 connect, equally spaced being arranged between two holders 6220 of metal steel wire cleaning ball 621 of steel wire lump state keeper 624 is installed, two holders 6220 are fixedly clamped steel wire lump state keeper 624 and metal steel wire cleaning ball 621, and steel wire lump state keeper 624 is vertical with holder 6220, distance between two adjacent steel wire lump state keepers 624 is corresponding with the diameter of heat exchanger tube to be cleaned.
In the present embodiment, referring to Fig. 4 to Fig. 6, steel wire lump state keeper 624 comprises support member 6240 and fitting 6241, the two ends of support member 6240 are corresponding arranges described fitting 6241, fitting 6241 is mutually vertical with support member 6240, fitting 6241 connects with metal steel wire cleaning ball 621, so that metal steel wire cleaning ball 621 keeps elongation.
Wherein, support member 6240 middle parts are provided with fixing hole 6242, also offer fixing hole 6221 on the position that the fixing hole 6242 with on support member 6240 of two holders 6220 faces, pass the fixing hole 6242 of support member 6240 and the fixing hole 6221 of holder 6220 coordinates with nut by bolt again, be fixedly clamped will be arranged on two steel wire lump state keeper 624 and metal steel wire cleaning balls 621 between holder 6220.Be provided with locating slot 6222 on holder 6220, in the locating slot that is embedded in two holders 6,220 6222 of support member 6240 correspondences, to realize quick location, described fixing hole 6221 be set on the bottom land of locating slot 6222.
Support member 6240 comprises keeper 62400 and two elastic components 62401, and keeper 62400 middle parts are provided with fixing hole 6242, and what the two ends of keeper 62400 were corresponding is connected with elastic component 62401, and the other end of elastic component 62401 also is connected with fitting 6241.Elastic component 62401 can or be shell fragment for spring.In the locating slot that is embedded in two holders 6,220 6222 of keeper 62400 correspondences.Because steel wire lump state keeper 624 and metal steel wire cleaning ball 621 connect, make metal steel wire cleaning ball 621 can keep for a long time fixing shape, with overcome because of the flexibility of metal steel wire cleaning ball 621 self and Action of Gravity Field and at high temperature long-play cause returning to original shape or the problem of down drooping.
Referring to Fig. 7, steel wire lump state keeper 624 also comprises four arc fittings 6243, one end of support member 6240 is being fixedly connected with two arc fittings 6243 of correspondence also, the other end of support member 6240 is being fixedly connected with two other arc fitting 6243 of correspondence also, the other end of four arc fittings 6243 is all near holder 6220, arc fitting 6243 also with metal steel wire cleaning ball 621 butts so that metal steel wire cleaning ball 621 produces distortion and matches and contact with the outer wall of heat exchanger tube to be cleaned.For example, arc fitting 6243 is connected with an end of elastic component 62401, and the end be connected with arc fitting 6243 of elastic component 62401 also is connected with fitting 6241 simultaneously.

Claims (9)

1. two vertical ore deposit heat waste heat boilers of pressing with the membrane wall heat-exchanging component, it is characterized in that: comprise the support formed by column and crossbeam, inferior middle pressure drum, low-pressure drum reaches flow through shaft, inferior middle pressure drum, low-pressure drum is arranged on support, flow through shaft is arranged in support, an end on the housing of flow through shaft is connected to smoke inlet, the other end of housing connects exhanst gas outlet, to in flow through shaft by smoke inlet to exhanst gas outlet be provided with successively be fixed on beam time in the pressure superheater, inferior middle pressure evaporimeter, inferior middle pressure economizer, low-pressure superheater, low pressure evaporator and low-pressure coal saver, described superheater, evaporimeter and economizer are mainly by advancing, outlet header and membrane wall heat-exchanging component form, the arrival end of membrane wall heat-exchanging component is connected with the entrance header, the port of export of membrane wall heat-exchanging component is connected with outlet header, and advance, outlet header all is located on the crossbeam outer to the flow through shaft housing, the membrane wall heat-exchanging component comprises that at least two heat exchanger tubes and heat pass metallic plate, between heat exchanger tube, be arranged side by side and adjacent two heat exchanger tubes in the port of export of a heat exchanger tube with the arrival end of another heat exchanger tube, be communicated with, heat biography metallic plate is arranged between heat exchanger tube and with two heat exchanger tubes and welds, and it is corresponding with the length of heat exchanger tube that heat passes metallic plate, establish the brusher deashing device on the membrane wall heat-exchanging component, described brusher deashing device comprises external transmission device and inner deashing device, described external transmission device is connected with inner deashing device, inner deashing device comprises crossbeam, two clamping limb and guides that are provided with the metal steel wire cleaning ball, two clamping limbs with beam vertical, be fixedly connected with and two clamping limbs parallel, two clamping limbs are clamped in the both sides of membrane wall heat-exchanging component and contact with heat exchanger tube and the heat biography metallic plate of membrane wall heat-exchanging component, clamping limb is mutually vertical with heat exchanger tube and the heat biography metallic plate of membrane wall heat-exchanging component, the both sides of membrane wall heat-exchanging component all arrange guide, and guide is positioned at the below of clamping limb, and clamping limb contacts with guide, and the channeling direction of guide is identical with the bearing of trend that heat exchanger tube and heat pass metallic plate.
2. the two vertical ore deposit heat of pressing with the membrane wall heat-exchanging component according to claim 1 are used waste heat boiler, and it is characterized in that: the entrance header of inferior middle pressure economizer is connected with supply line, and the outlet header of inferior middle pressure economizer is connected with inferior middle pressure drum by pipeline; Inferior middle pressure drum is connected with the entrance header of inferior middle pressure evaporimeter by down-comer, and the outlet header of inferior middle pressure evaporimeter is connected with inferior middle pressure drum by tedge, forms closed circuit; Inferior middle pressure drum also is connected with the entrance header of inferior middle pressure superheater by pipeline, and the outlet header of inferior middle pressure superheater is sent by pipeline; The entrance header of low-pressure coal saver is connected with supply line, and the outlet header of low-pressure coal saver is connected with low-pressure drum by pipeline; Low-pressure drum is connected with the entrance header of low pressure evaporator by down-comer, and the outlet header of low pressure evaporator is connected with low-pressure drum by tedge, forms closed circuit; Low-pressure drum also is connected with the entrance header of low-pressure superheater by pipeline, and the outlet header of low-pressure superheater is sent by pipeline.
3. two vertical ore deposit heat waste heat boilers of pressing with the membrane wall heat-exchanging component according to claim 1, it is characterized in that: clamping limb comprises two holders, inner deashing device also comprises steel wire lump state keeper, two ends and the metal steel wire cleaning ball of steel wire lump state keeper connect, equally spaced being arranged between two holders of metal steel wire cleaning ball of steel wire lump state keeper is installed, two holders are fixedly clamped steel wire lump state keeper and metal steel wire cleaning ball, and steel wire lump state keeper is vertical with holder, distance between two adjacent steel wire lump state keepers is corresponding with the diameter of heat exchanger tube to be cleaned.
4. two vertical ore deposit heat waste heat boilers of pressing with the membrane wall heat-exchanging component according to claim 3, it is characterized in that: steel wire lump state keeper comprises support member and fitting, the two ends of support member are corresponding arranges described fitting, fitting is mutually vertical with support member, fitting and metal steel wire cleaning ball connect, so that the metal steel wire cleaning ball keeps elongation.
5. two vertical ore deposit heat waste heat boilers of pressing with the membrane wall heat-exchanging component according to claim 4, it is characterized in that: the support member middle part is provided with fixing hole, also offer fixing hole on the position that the fixing hole with on support member of two holders faces, pass the fixing hole of support member and the fixing hole of holder coordinates with nut by bolt again, be fixedly clamped will be arranged on two steel wire lump state keeper and metal steel wire cleaning balls between holder.
6. according to the described two vertical ore deposit heat waste heat boilers of pressing with the membrane wall heat-exchanging component of claim 4 or 5, it is characterized in that: support member comprises keeper and two elastic components, the keeper middle part is provided with fixing hole, what the two ends of keeper were corresponding is connected with elastic component, and the other end of elastic component also is connected with fitting.
7. the two vertical ore deposit heat of pressing with the membrane wall heat-exchanging component according to claim 6 are used waste heat boiler, and it is characterized in that: elastic component is spring or shell fragment.
8. two vertical ore deposit heat waste heat boilers of pressing with the membrane wall heat-exchanging component according to claim 3, it is characterized in that: steel wire lump state keeper also comprises four arc fittings, one end of support member is being fixedly connected with two arc fittings of correspondence also, the other end of support member is being fixedly connected with two other arc fitting of correspondence also, the other end of four arc fittings is all near holder, the arc fitting also with metal steel wire cleaning ball butt so that the metal steel wire cleaning ball produces distortion and matches and contact with the outer wall of heat exchanger tube to be cleaned.
9. two vertical ore deposit heat waste heat boilers of pressing with the membrane wall heat-exchanging component according to claim 3, it is characterized in that: be provided with locating slot on holder, in the locating slot that is embedded in two holders that support member is corresponding, to realize quick location, described fixing hole is set on the bottom land of locating slot.
CN201310417692.5A 2013-09-15 2013-09-15 Dual-pressure vertical submerged arc furnace waste heat boiler with membrane wall heat transfer components Expired - Fee Related CN103471409B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN104792070A (en) * 2015-04-28 2015-07-22 徐翔 Evaporator with heat exchange interface capable of being automatically cleaned
CN105485653A (en) * 2014-10-07 2016-04-13 宁夏天纵泓光余热发电技术有限公司 Membrane wall heat exchange assembly with mechanical airflow type ash removing function

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CN104266498A (en) * 2014-10-07 2015-01-07 宁夏天纵泓光余热发电技术有限公司 Dual-pressure vertical waste heat boiler having mechanical jet ash-cleaning function and applied to ore smelting
CN105485653A (en) * 2014-10-07 2016-04-13 宁夏天纵泓光余热发电技术有限公司 Membrane wall heat exchange assembly with mechanical airflow type ash removing function
CN104266498B (en) * 2014-10-07 2016-06-08 宁夏天纵泓光余热发电技术有限公司 There are the double; two of mechanical airflow formula deashing function and press vertical ore deposit heat waste heat boiler
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CN104792070A (en) * 2015-04-28 2015-07-22 徐翔 Evaporator with heat exchange interface capable of being automatically cleaned
CN104792070B (en) * 2015-04-28 2017-05-17 徐翔 Evaporator with heat exchange interface capable of being automatically cleaned

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