CN106288933B - Horizontal mineral hot furnace waste heat boiler with the deashing device containing elastic deashing rag - Google Patents
Horizontal mineral hot furnace waste heat boiler with the deashing device containing elastic deashing rag Download PDFInfo
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- CN106288933B CN106288933B CN201610871891.7A CN201610871891A CN106288933B CN 106288933 B CN106288933 B CN 106288933B CN 201610871891 A CN201610871891 A CN 201610871891A CN 106288933 B CN106288933 B CN 106288933B
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- deashing
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- rack
- heat exchange
- horizontal
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- 239000002918 waste heat Substances 0.000 title claims abstract description 51
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 35
- 239000011707 mineral Substances 0.000 title claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 21
- 239000011324 bead Substances 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 238000005491 wire drawing Methods 0.000 claims description 3
- 229910000619 316 stainless steel Inorganic materials 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 17
- 239000000428 dust Substances 0.000 description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 238000010926 purge Methods 0.000 description 6
- 229910001021 Ferroalloy Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000013517 stratification Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 241001417527 Pempheridae Species 0.000 description 1
- 229910000720 Silicomanganese Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001345 alkine derivatives Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/02—Non-rotary, e.g. reciprocated, appliances having brushes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/02—Supports for cleaning appliances, e.g. frames
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/04—Feeding and driving arrangements, e.g. power operation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
The present invention relates to a kind of horizontal mineral hot furnace waste heat boilers with elastic deashing rag deashing device, the waste heat boiler includes multiple horizontal modules, each horizontal module includes the boiler heat exchange tube bank that the more boiler heat exchange pipes arranged along the vertical direction are constituted, deashing device is provided in each horizontal module, the deashing rack of the deashing device includes several elastic deashing rags for clearing up every boiler heat exchange tube outer surface, the every boiler heat exchange pipe and at least two elastic deashing rags are in close contact, the deashing rack can move back and forth in the vertical direction under the action of transmission drive along boiler heat exchange pipe, to the order of contact and coverage degree with heat exchanger tube of elastic deashing rag in the present invention, the lifting frequency of steel wire brush holder, wire brush or steel wire lump material etc. are rationally designed, so that its cleaning efficiency is up to 99 %, brush head long service life, replacement are convenient, reliable and stable.
Description
Technical field
The present invention relates to mineral hot furnace waste heat boiler technical fields, and in particular to one kind has elastic deashing rag deashing device
Horizontal mineral hot furnace waste heat boiler.
Background technique
Mineral hot furnace plays a very important role in industrial furnace system, mainly includes ferrosilicon, ferrochrome, silicomanganese, work
The mines heat boiler such as industry silicon, according to Over About Chinese Ferroalloy Industry association relevant statistics, China is the first in the world ferroalloy big producer,
National 2435.5 ten thousand tons of yield of ferroalloy in 2010, increases by 10.23% on a year-on-year basis, accounts for 50% or more of World Ferroalloy total output.
The ferroalloy industry 90% or so product in China's is produced using mineral hot furnace electrothermal way, and energy consumption is relatively high, is national energy conservation and emission reduction
Key industry.The electricity consumption of mineral hot furnace accounts for the 2% of national generating capacity, and power consumption is concerned, and how to make full use of mine hot
The waste heat of furnace is that a country actively encourages the power-saving technology widelyd popularize using cogeneration technology, not only energy saving, more
Be conducive to environmental protection.Therefore, promote the mineral hot furnace of field transformation and grassroot project constantly towards the UTILIZATION OF VESIDUAL HEAT IN of boiler and
Develop under the main trend of clean burning and improves.
During the mines heat boiler electric furnace smelting such as ferrosilicon, industrial silicon, generated waste heat smoke components, which remove, mainly includes
Outside the gas componants such as vapor, carbon dioxide, oxygen, nitrogen, sulfur dioxide, also containing with SiO2(being commonly called as silicon powder) is main
The exhaust gas dust of ingredient, these exhaust gas dust average grain diameters only have 200~400nm, and very carefully, dust content concentration is higher, have 8~
12g/Nm3, large specific surface area, thermal insulation is strong, and it is light and very glutinous, electrostatic is easily adsorbed and has, and its cohesiveness is with temperature
Raising and enhance, therefore mineral hot furnace waste heat boiler boiler heat exchange tube wall be easy deposition, adhere to above-mentioned exhaust gas dust, significantly
Heat exchange, the heat transfer efficiency for reducing boiler, reduce the utilization rate of boiler afterheat, thus in terms of mineral hot furnace UTILIZATION OF VESIDUAL HEAT IN, and
When effectively remove boiler work during exhaust gas dust improve its fume afterheat using this be always also mineral hot furnace waste heat pot
The key technology that furnace is studied.
Existing mineral hot furnace waste heat reset mode mainly has steel ball deashing, shock-wave ash-clearing and mechanical tube brush deashing, steel ball clear
Grey mode due to it is interbank do not need setting deashing device, manufacture require it is low, because its for loose mail dispatch from the factory, transport at also originally it is low,
But steel ball deashing is not clean, deashing rate is 60% hereinafter, steel ball and carbon particle enter SILICA FUME, and sintering agglomeration is easy to cause cigarette
Gas channel blockage, while high-altitude being overturned when steel ball lifting system accident, easily lead to personnel casualty accidents；Shock-wave ash-clearing mode second
Alkynes dosage is very big, and operating cost expense is very high, and deashing is not thorough, and high fume temperature, utilization rate of waste heat is low, can not adapt to mine
The needs of hot stove furnace UTILIZATION OF VESIDUAL HEAT IN.
Mechanical tube brush purge mode is the hot spot studied in each ash-clearing technology at this stage, and cleaning efficiency is relatively high；Example
Such as, Chinese patent CN104296592A discloses a kind of mechanical airflow formula exchanging pipe of boiler by waste clearing apparatus, cleans dress
It sets including two clamping limbs, metal steel wire cleaning ball and steel wire lump state holder, steel wire lump state holder and metallic steel
Silk cleaning ball abuts against；Chinese patent CN201555501U also discloses a kind of exchanging pipe of boiler by waste group and is filled with mechanical sweeper
It sets comprising dust cleaning brush is arranged on deashing brush holder in deashing brush holder, brush holder elevating mechanism etc., in the reciprocal fortune of brush holder elevating mechanism
The lower every heat exchanger tube for cleaning set of heat exchange tubes of movement；Chinese patent CN 204922925U discloses a kind of heating furnace flue waste heat
Recycle the steel brush ash-cleaning device for preventing dust stratification of boiler comprising one is disposed around the steel structure frame of boiler tube bundle periphery, shuttles
Girder steel between boiler tube bundle in neutral gear, and the stainless steel brush head being mounted on the girder steel, the girder steel be in each neutral gear
It is equidirectional arranged in parallel, and be upper and lower, upper and lower rule dislocation arrangement, every 4 stainless steel brush heads surround a boiler
Tube bank；Chinese patent CN202733862U discloses a kind of hot waste heat boiler of horizontal mine with brusher deashing device, the waste heat
The deashing device of boiler is equally the fixation device with a frame-type brush, fixes on device at it and divides equipped with upper and lower ends
The multiple wire brushes not being fixed on frame, the fixed device of the brush of the frame-type under the drive of the transmission mechanism, move up and down
Carry out deashing.
Above-mentioned cited patent document its be the heat exchanger tube using the brush deashing mechanism of mechanical tube to waste heat boiler
It is cleaned, and partial monopoly also discloses that its brush head is that multiple stainless steel brushes or steel wire ball brush are fixed on brush holder, is being driven
Under the movement of driving mechanism, its heat exchanger tube is cleaned in brush holder reciprocating motion, but existing above-mentioned mechanical tube brush cleaner
Its not order of contact to wire brush or steel wire ball brush and heat exchanger tube and coverage degree, the lifting driving method of steel wire brush holder, steel wire
Brush or steel wire lump material etc. are rationally designed, or even also unclear to tube brush to the modes of emplacement of waste heat boiler (vertical or horizontal)
The influence of grey mode accounts for, therefore already to there is cleaning efficiency not high enough for existing waste heat boiler machinery tube brush purge mode
The technical problems such as the service life of (not reaching 99% or more), wire brush or steel wire ball brush is short and brush head is inconvenient to replace.
The first CN103471073A of granted patent of the related invention people of the application discloses a kind of with multiple vertical
The waste heat boiler of module, the waste heat boiler have mechanical brush ash removing mechanism, several heat exchanger tubes of the deashing mechanism have edge
The coiled pipe membrane wall structure of horizontal direction arrangement or the multilayer tube bundle unit of single extended surface tube structure composition, hanging is installed on every
Between two layers of tube bundle unit can horizontal direction move back and forth bar shaped brush unit exchange heat pipe wall dust stratification cleaned with water；But it sends out
Bright people institute it is found out that, the vertical exhaust-heat boiler is when using mechanical tube brush purge mode deashing, in prolonged deashing process
The boiler heat exchange pipe of horizontality is bent since the weight tube body of itself easily dangles along position of centre of gravity, makes the item of horizontal reciprocating movement
Shape brush unit is easy to be stuck, so that the cleaning efficiency of the brush ash removing mechanism of machinery of vertical exhaust-heat boiler is declined.
Summary of the invention
In order to overcome above-mentioned present in mineral hot furnace waste heat boiler machinery tube brush deashing device described in the prior art lack
It falls into, the present invention provides a kind of mechanical tube brush purge mode using horizontal arrangement, has high-efficiency cleaning efficiency, brush head service life
Long, replacement easily has the horizontal mineral hot furnace waste heat boiler of elastic deashing rag deashing device.Specific technical solution is as follows:
A kind of horizontal mineral hot furnace waste heat boiler with elastic deashing rag deashing device, the waste heat boiler include multiple sleeping
Formula module, horizontal steel structure frame are fixed in horizontal steel structure frame and there is the flue gas of gas inlet and exhanst gas outlet at both ends
Channel, each horizontal module includes the boiler heat exchange tube bank that the more boiler heat exchange pipes arranged along the vertical direction are constituted, special
Sign is, the deashing device restrained boiler heat exchange and carry out deashing is provided in each horizontal module, and the deashing device is main
It is changed including deashing rack, fixing element, elastic deashing rag and transmission drive, the deashing rack perpendicular to the boiler
Heat pipe bundle setting, the boiler heat exchange pipe radius are R, and the deashing rack includes for clearing up outside every boiler heat exchange pipe
Several elastic deashing rags on surface, it is described for being removably secured the fixing element for installing the elastic deashing rag
Fixing element is removably mounted on the deashing rack, the every boiler heat exchange pipe and at least two elastic deashing rags
It is in close contact, the deashing rack can be past in the vertical direction along boiler heat exchange pipe under the action of the transmission drive
Multiple movement.
Preferably, the spacing in adjacent two boiler heat exchanges pipe face is of substantially equal, if the spacing is L；Several described elasticity are clear
Grey rag is removably secured at least one fixing element for being installed on deashing rack, the deashing rack of being fixedly installed in
Elastic deashing rag in fixing element is essentially in the maximum horizontal section under natural conditions not contacted with boiler heat exchange pipe
Circle, the circular diameter are D, and Preferably,
If the spacing in adjacent two boiler heat exchanges pipe face differs greatly, if between the airflow direction boiler heat exchange pipe of horizontal boiler
Away from, vertically with the boiler heat exchange tube spacing of airflow direction be respectively L1 and L2 (L1 ≠ L2)；Several described elastic deashing rags
It is removably secured at least one fixing element for being installed on deashing rack, the fixed member for being fixedly installed in deashing rack
Elastic deashing rag on part is substantially circular in the maximum horizontal section under natural conditions not contacted with boiler heat exchange pipe, should
Circular diameter is D, and Or
Preferably,
Preferably, several described elastic deashing rags can be circular ring shape, the cylindrical branch being provided on deashing rack
The hollow interior cylinder of support structure, deashing rag is connected together therewith.
Preferably, the fixing element is metal bead, and the elasticity deashing rag is mounted by means of bolts on described
On metal bead.
It is further preferred that adjacent two metal bead intervals and being alternately arranged in up and down described on the deashing rack
In two planes of deashing rack.The adjacent spring deashing rag is also staggered in two planes up and down of deashing rack
On.
Preferably, the transmission drive can be following one of driving kinds of drive:
A. the transmission drive includes the multiple pulleys for being fixed at the framework two sides of the deashing rack, with
What the pulley was slidably matched is arranged in the sliding guide groove and the transmission driving deashing net on boiler heat exchange tube bank fixed frame
Driving wheel, transmission steel wire and the driving motor that the pulley of frame two sides pumps along the sliding guide groove；
B. the transmission drive includes the rigid gear for being fixed at the framework two sides of deashing rack, and setting exists
Boiler heat exchange restrains the rigid toothed engaged with the gear and the driving rigid gear rack gear engagement biography on fixed frame
Dynamic linear drive motor；
C. the transmission drive include the screw nut driven mechanism being fixedly connected with the framework of deashing rack and
Driving motor.
Preferably, the transmission drive controls deashing rack using variable-frequency motor using Asynchronous Frequency-variable transmission driving
The speed of reciprocating motion so that in the deashing process that the deashing rack moves back and forth, the speed of upward stroke be greater than to
The speed of down stroke.
Preferably, the deashing rack uses 310S stainless steel material, and the elastic deashing rag is stainless using 316
Steel wire drawing is made.
Preferably, there are expansion clearance, the expansions between deashing rack edge and the box inside of the rack
Gap is 30mm~60mm.
It is further preferred that below the cabinet of the corresponding rack (6) of each horizontal module (8), be respectively arranged with
The ash dropping hopper of ash pipe of sauntering connection, the ash pipe of sauntering is equipped with ash-removing valve.
Present invention advantageous effects obtained:
1) present invention employs heat exchanger tube of the purge mode of mechanical tube brush to waste heat boiler to carry out deashing, cleaning efficiency
Up to 99% or more, and elastic deashing rag long service life, replacement are convenient；
2) in the deashing process of the invention in elastic deashing rag to exchanging pipe of boiler by waste, to deashing rag and heat exchanger tube
Order of contact and coverage degree carried out reasonable design, make elastic deashing rag in the nature not contacted with boiler heat exchange pipe
Under circular cross-section D and heat exchanger tube radius R, adjacent heat exchange tube spacing L, therebetween exist
It is preferred thatRelationship, can make boiler heat exchange pipe in by the deashing process of elastic deashing rag 100% quilt
Contact and cladding；Further, the metal bead interval of elastic deashing rag will be installed and be staggered up and down, so as to same root
Heat exchanger tube carries out the clean corresponding elastic deashing rag being arranged on two neighboring metal bead in exchange heat pipe deashing
The middle service life for further improving cleaning efficiency there are overlapping region and improve deashing rag；
3) deashing device of the hot waste heat boiler of horizontal mine of the invention, the metal bead for installing flexible deashing rag can
It is releasably mounted on deashing rack, when elastic deashing rag needs replacing, it is only necessary to from boiler maintenance mouth by the gold
Belong to press strip disassembly extraction, replacement metal bead is whole, is also convenient to replacement by bolt and is mounted on metal bead elasticity clearly
Grey rag；
4) in deashing process, transmission drive is driven the present invention using asynchronous transmission, is controlled by variable-frequency motor
The speed that deashing rack moves back and forth, and the speed of upward stroke is made to be greater than the speed of downward stroke, being arranged such prevents deashing
The exhaust gas dust of lighter weight can be adhered to again on the upper end heat exchanger tube cleaned with ascending air during rack decline, into
One step improves cleaning efficiency；
5) present invention reasonably selects the main materials such as deashing rack, elastic deashing rag, and deashing rack uses
310S stainless steel material, elastic deashing rag are made of 316 stainless steel wire drawings, and brake heat resistance temperature can achieve 1150
DEG C, maximum temperature reaches 1250 DEG C, it is ensured that boiler can operate normally under the conditions of the high smoke temperature of the limit (1050 DEG C).
6) there are 30mm~60mm between waste heat boiler deashing rack edge and the box inside of the rack of the invention
Expansion clearance, which ensures that deashing racks after expanded by heating, will not cut to pieces with box frame in pumping
It rubs, avoids occurring the stuck situation generation of deashing brush holder again；The present invention is single also below the rack cabinet of each horizontal module
Only setting ash dropping hopper and ash-removing valve, realize to mineral hot furnace cigarette ash it is autonomous, controllable, stage by stage, deashing step by step.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and embodiments:
Fig. 1 is the schematic diagram of internal structure of the horizontal mineral hot furnace waste heat boiler of the present invention；
Fig. 2 is the schematic view of the front view of deashing device involved in the present invention；
Fig. 3 is the side structure schematic view of deashing device involved in the present invention；
Fig. 4 is the overlooking structure diagram of deashing device involved in the present invention；
Fig. 5 is the structural schematic diagram of the preferred transmission drive of deashing device involved in the present invention；
Fig. 6 a, 6b are to use horizontal mineral hot furnace waste heat boiler actual effect figure before and after deashing of the invention.
Detailed description of the invention: 1- boiler heat exchange pipe, 2- boiler heat exchange restrain fixed frame, 3- deashing device, 4- gas inlet, 5- cigarette
Gas outlet, 6- rack, 7- exhaust gases passes, the horizontal module of 8-, 31- deashing rack, 32- fixing element, 33- elasticity deashing rag,
34- bolt, 35- transmission device, 351- pulley；352- sliding guide groove, 353- spacing block set, 354- driving wheel, 355- are driven steel
Silk, 36- driving device
Specific embodiment
Technical solution for a clearer understanding of the present invention will pass through the drawings and specific embodiments to of the invention below
Technical solution is described in further detail.
As shown in Figure 1, the deashing device of the hot waste heat boiler of horizontal mine of the invention, the waste heat boiler include horizontal steel construction
Rack 6 is fixed in horizontal steel structure frame 6 and there are the exhaust gases passes 7 of gas inlet 4 and exhanst gas outlet 5 at both ends, are located at flue gas
Between import 4 and exhanst gas outlet 5 and dismountable multiple horizontal modules 8；The quantity of the horizontal module is 4-14, wherein every
A horizontal module 8 includes the boiler heat exchange tube bank that the more boiler heat exchange pipes 1 arranged along the vertical direction are constituted, for vertical side
Transmission dress to the deashing device 3 for back and forth removing the boiler heat exchange tube bank superficial dust, for moving back and forth deashing mechanism
35 are set, and provides the driving device 36 of power to the transmission device.
As in Figure 2-4, the deashing device 3 of the hot waste heat boiler of horizontal mine of the invention includes deashing rack 31, fixes
Element 32, elastic deashing rag 33 and bolt 34, more vertical directions possessed by the horizontal module 8 of each of waste heat boiler extend
Boiler heat exchange pipe 1 uniformly arrange in matrix form, deashing rack 31 and boiler heat exchange are restrained and are vertically arranged, as fixing element 32
The each row's boiler heat exchange tube bank of metal bead uniform intervals be removably mounted on deashing rack 31, the elasticity deashing is smeared
Cloth 33 is removably secured and is mounted on the metal bead by specific bolt 34 so that every boiler heat exchange pipe 1 with extremely
Few two elastic deashings smear the close contact of 33 cloth；Wherein, deashing rack 31, metal bead are all made of 310S stainless steel material.
Reasonable design is carried out to the order of contact and coverage degree of deashing rag and heat exchanger tube in the present embodiment, if boiler changes
The radius of heat pipe 1 is R, and the spacing in adjacent two boiler heat exchanges pipe face is of substantially equal, if the spacing is L；Bullet on deashing rack 31
Property deashing rag 33 in the maximum horizontal section under natural conditions not contacted with boiler heat exchange pipe be it is substantially round, be directly
D will then be such that D meets Or preferablySo that boiler heat exchange pipe is elastic
100% is contacted and is coated in the deashing process of deashing rag, improves cleaning efficiency well.
In addition, the boiler along the airflow direction of horizontal boiler changes if the spacing in adjacent two boiler heat exchanges pipe face differs greatly
Heat pipe spacing vertically with the boiler heat exchange tube spacing of airflow direction is set to L1 and L2 (L1 ≠ L2)；Several described elasticity
Deashing rag is removably secured at least one fixing element for being installed on deashing rack, described to be fixedly installed in deashing rack
Fixing element on elastic deashing rag it is basic in the maximum horizontal section under natural conditions not contacted with boiler heat exchange pipe
For circle, which is D, andOrPreferably,
(do not show in attached drawing in addition, being additionally provided with access hole on the rack cabinet of horizontal mineral hot furnace waste heat boiler of the invention
Out), when elastic deashing rag needs replacing, it is only necessary to dismantle extraction, replacement from boiler maintenance mouth by the metal bead
Metal bead is whole, is also convenient to replacement by bolt and is mounted on metal bead elastic deashing rag.
Further, as shown in figure 5, it illustrates transmission driving deashing rack 31 in the present embodiment is past up and down along the vertical direction
Multiple movement carries out the transmission device 35 and driver 36 of deashing operation, and transmission device 35 is described including being fixed at
Multiple pulleys 351 of the framework two sides of deashing rack are arranged in the setting that pulley is slidably matched and restrain fixed frame in boiler heat exchange
On sliding guide groove 352, the retention bead 353 in sliding guide groove upper and lower ends portion is set, and the transmission deashing rack two
The driving wheel 354 and transmission steel wire 355 that the pulley 351 of side pumps along the sliding guide groove 352, drive driving wheel
354 driving device 36 with the transmission rotation of steel wire 355 to drive deashing rack 31 to pump is a driving motor；
In deashing operation, the pulley 351 of deashing rack two sides is restrained with the setting that pulley is slidably matched is arranged in boiler heat exchange
Sliding guide groove 352 on fixed frame is fitted close, and under the driving of driving motor, drives deashing rack edge by transmission device 35
Boiler heat exchange tube bank axial direction is pumped with certain frequency, and the multiple elastic deashings being arranged on deashing rack are smeared
Cloth 33 is purged the exhaust gas dust of the upper deposition of every boiler root boiler heat exchange pipe 1, wherein retention bead is used for deashing
The reciprocating motion of rack is limited, and prevents it from skidding off boiler heat exchange pipe 1；In addition, in the present embodiment for transmission driving dress
It sets using Asynchronous Frequency-variable transmission driving, the speed moved back and forth using variable-frequency motor control deashing rack keeps deashing rack 31 past
In the deashing process moved again, the speed of upward stroke is greater than the speed of downward stroke, and 31 rate of climb of deashing rack is set
It is set to a, decrease speed b, and a > b, reciprocal deashing frequency is set as 0.2~2 time/min, preferably 1 time/min, is designed in this way,
Purge mode has been advanced optimized, effectively dust has been avoided to deposit on brush, and has prevented quality during the decline of deashing rack
Lighter exhaust gas dust can be adhered to again on the upper end heat exchanger tube cleaned with ascending air, further improve deashing effect
Rate.
As shown in fig. 6, the horizontal mineral hot furnace waste heat boiler for showing deashing device described in the present embodiment is real before and after deashing
Border effect picture carries out deashing, deashing effect to horizontal mineral hot furnace waste heat boiler using deashing device described in the embodiment of the present invention
For rate up to up to 99%, clean-up performance is high.
Embodiment of above is the preferred embodiment of the present invention, and the present invention can be using preferred side described in summary of the invention
Any combination of formula, for example, in another preferred embodiment of the present invention, it can be by two adjacent on deashing rack 31
It metal bead interval and is alternately arranged in two planes of the deashing rack 31 up and down, the adjacent spring deashing rag
It is staggered in two planes up and down of deashing rack therewith.It is arranged so that and clean set is carried out to same root heat exchanger tube
Setting the corresponding elastic deashing rag on two neighboring metal bead, there are overlapping regions into one in exchange heat pipe deashing
Step, which improves cleaning efficiency and improves, extends the service life of deashing rag.Preferably, horizontal mineral hot furnace of the invention
In the deashing device of waste heat boiler, it is swollen that there are 30mm~60mm between deashing rack edge and the box inside of the rack
Swollen gap, such setting ensure deashing rack after expanded by heating, will not occur with box frame in pumping
It scratches, avoids occurring the stuck situation generation of deashing brush holder again；Preferably, horizontal mineral hot furnace waste heat boiler of the invention is every
Below the cabinet of the corresponding rack 6 of a horizontal module 8, the ash dropping hopper of the ash pipe that is respectively arranged with and saunters connection, the ash of sauntering
Pipe is equipped with ash-removing valve, so set, realize to mineral hot furnace cigarette ash it is autonomous, controllable, stage by stage, deashing step by step；In addition,
For the transmission device of deashing rack, pass through a drive except using driving wheel 354 described in above-described embodiment and being driven steel wire 355
It is outer that dynamic motor drive drives the pulley 351 of deashing rack to pump along sliding guide groove 352, driving wheel 354, transmission steel
Silk 355 can also be substituted using sprocket wheel with chain, and driving motor is also possible to two, and the left and right sides respectively drives；In addition,
Driving transmission device is also possible to other kinds of drive described in the present application content part or other liters in the prior art
Drop transmission driving method, is no longer described in detail herein.
In short, horizontal mineral hot furnace waste heat boiler of the invention, cleaning efficiency height, brush head long service life, replacement are convenient,
It is reliable and stable, failure rate is low, easy to operate, easy to maintain, cleaning efficiency is up to 99%, and elastic deashing rag deashing is thorough, permanent
Fixed, boiler heat exchange tube wall surface can not increase dust stratification over time again, and production air-flow is permanently unattenuated, high-temperature flue gas benefit
With rate height, the flue gas discharge opening flue-gas temperature that be averaged falls below 160 DEG C~140 DEG C, and the high-temperature flue gas of relatively existing waste heat filtering is sharp
It is greatly improved with rate, following table table 1 is the horizontal mineral hot furnace waste heat boiler and the prior art using deashing device of the present invention
(CN103471073A) the running partial parameters comparison of the waste heat boiler of vertical type module.
Table 1
Finally, it is to be noted that, the foregoing is merely specifically embodiment of the invention or preferred embodiment party
Formula is not intended to limit the scope of the invention, made by record of all those skilled in the art using present specification
Equivalent structure or equivalence changes are directly or indirectly applied in other relevant technical fields, are similarly included in the present invention
In the protection scope of patent application.
Claims (8)
1. a kind of horizontal mineral hot furnace waste heat boiler with the deashing device containing elastic deashing rag, which includes multiple
Horizontal module (8), horizontal steel structure frame (6), be fixed in horizontal steel structure frame (6) and both ends have gas inlet (4) and
The exhaust gases passes (7) of exhanst gas outlet (5), each horizontal module (8) include the more boiler heat exchange pipes arranged along the vertical direction
(1) the boiler heat exchange tube bank constituted, which is characterized in that be provided in each horizontal module (8) and progress is restrained to boiler heat exchange
The deashing device (3) of deashing, the deashing device (3) mainly include deashing rack (31), fixing element (32), elastic deashing rag
(33) and transmission drive, the deashing rack (31) restrain setting, the boiler heat exchange perpendicular to the boiler heat exchange
Pipe radius is R, and the deashing rack (31) includes clear for clearing up several elasticity of every boiler heat exchange pipe (1) outer surface
Grey rag (33), for being removably secured the fixing element (32) for installing the elastic deashing rag (33), the fixed member
Part (32) is removably mounted on the deashing rack (31), and the every boiler heat exchange pipe (1) and at least two elasticity are clear
Grey rag (33) is in close contact, and the deashing rack (31) is under the action of the transmission drive along boiler heat exchange pipe
(1) it moves back and forth in the vertical direction；The spacing in adjacent two boiler heat exchanges pipe face is of substantially equal, which is L；It is described several
Elastic deashing rag is removably secured at least one fixing element (32) for being installed on deashing rack (31), the fixed peace
Elastic deashing rag in fixing element (32) loaded on deashing rack (31) is in the natural shape not contacted with boiler heat exchange pipe (1)
Maximum horizontal section under state is substantially circular, which is D, and D >=, the horizontal mine heat
Access hole is provided on the rack cabinet of furnace waste heat boiler.
2. horizontal mineral hot furnace waste heat boiler according to claim 1, which is characterized in that if adjacent two boiler heat exchanges pipe face
Spacing differs greatly, the boiler heat exchange tube spacing along the airflow direction of horizontal boiler, the boiler heat exchange pipe perpendicular to airflow direction
Spacing is set to L1 and L2, and L1 ≠ L2；Several described elastic deashing rags, which are removably secured, is installed on deashing rack
At least one fixing element (32) on, the elastic deashing in the fixing element (32) for being fixedly installed in deashing rack (31)
Rag is substantially circular in the maximum horizontal section under natural conditions not contacted with boiler heat exchange pipe, which is D,
And D >=, wherein L1 < L2；Or D >=, wherein L1 > L2.
3. -2 described in any item horizontal mineral hot furnace waste heat boilers according to claim 1, which is characterized in that the fixing element
It (32) is metal bead, the elasticity deashing rag (33) is fixedly mounted on the metal bead by bolt (34).
4. horizontal mineral hot furnace waste heat boiler according to claim 3, which is characterized in that adjacent bullet on the deashing rack
It property deashing rag interval and is alternately arranged in two planes up and down of the deashing rack (31) up and down.
5. -2 described in any item horizontal mineral hot furnace waste heat boilers according to claim 1, which is characterized in that the transmission driving
Device is following one of driving kind of drive:
A. the transmission drive includes the multiple pulleys (351) for being fixed at the framework two sides of the deashing rack,
Sliding guide groove (352) and transmission of the setting being slidably matched with the pulley (351) in boiler heat exchange tube bank fixed frame (2)
Driving wheel (354), the transmission steel wire for driving the pulley of deashing rack two sides to pump along the sliding guide groove
(355) and driving motor；
B. the transmission drive includes the rigid gear for being fixed at the framework two sides of deashing rack, is arranged in pot
The rigid toothed engaged with the gear and the driving rigid gear and the rigid teeth on furnace heat-exchanging tube bundle fixed frame
The linear drive motor of item engaged transmission；
C. the transmission drive includes the screw nut driven mechanism and driving being fixedly connected with the framework of deashing rack
Motor.
6. -2 described in any item horizontal mineral hot furnace waste heat boilers according to claim 1, the transmission drive is using asynchronous
Frequency conversion transmission driving, the speed moved back and forth using variable-frequency motor control deashing rack (31), so that the deashing rack (31)
In the deashing process of reciprocating motion, the speed of upward stroke is greater than the speed of downward stroke.
7. -2 described in any item horizontal mineral hot furnace waste heat boilers according to claim 1, the deashing rack (31) is used
310S stainless steel material, the elastic deashing rag are made of 316 stainless steel wire drawings.
8. -2 described in any item horizontal mineral hot furnace waste heat boilers according to claim 1, which is characterized in that the deashing rack
(31) between edge and the box inside of the horizontal steel structure frame (6) there are certain interval, the gap be 30mm~
60mm。
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| CN201610871891.7A CN106288933B (en) | 2016-09-30 | 2016-09-30 | Horizontal mineral hot furnace waste heat boiler with the deashing device containing elastic deashing rag |
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| CN201610871891.7A CN106288933B (en) | 2016-09-30 | 2016-09-30 | Horizontal mineral hot furnace waste heat boiler with the deashing device containing elastic deashing rag |
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| CN111238288B (en) * | 2020-03-11 | 2024-05-03 | 广东中鹏热能科技股份有限公司 | Ash removal device and ash removal method for tubular heat exchanger |
| CN116538822A (en) * | 2023-05-08 | 2023-08-04 | 中国新型建材设计研究院有限公司 | Automatic material cleaning device in steam boiling furnace |
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| CN106288933A (en) | 2017-01-04 |
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