CN106642673A - Safe and efficient biomass hot-blast stove - Google Patents
Safe and efficient biomass hot-blast stove Download PDFInfo
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- CN106642673A CN106642673A CN201610959131.1A CN201610959131A CN106642673A CN 106642673 A CN106642673 A CN 106642673A CN 201610959131 A CN201610959131 A CN 201610959131A CN 106642673 A CN106642673 A CN 106642673A
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- combustion chamber
- combustion
- chamber
- cover plate
- parts
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- 239000002028 Biomass Substances 0.000 title claims abstract description 27
- 238000002485 combustion reaction Methods 0.000 claims abstract description 171
- 238000007789 sealing Methods 0.000 claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000010439 graphite Substances 0.000 claims abstract description 13
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 13
- 238000012856 packing Methods 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 14
- 239000003063 flame retardant Substances 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 239000011819 refractory material Substances 0.000 claims description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000005995 Aluminium silicate Substances 0.000 claims description 4
- 239000004111 Potassium silicate Substances 0.000 claims description 4
- 239000004115 Sodium Silicate Substances 0.000 claims description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- 239000000391 magnesium silicate Substances 0.000 claims description 4
- 229910052919 magnesium silicate Inorganic materials 0.000 claims description 4
- 235000019792 magnesium silicate Nutrition 0.000 claims description 4
- CMVOJSWILFNLFI-UHFFFAOYSA-L magnesium;dibromate;hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[O-]Br(=O)=O.[O-]Br(=O)=O CMVOJSWILFNLFI-UHFFFAOYSA-L 0.000 claims description 4
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 4
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 4
- 235000019353 potassium silicate Nutrition 0.000 claims description 4
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 4
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- 239000004110 Zinc silicate Substances 0.000 claims description 3
- 235000019352 zinc silicate Nutrition 0.000 claims description 3
- XSMMCTCMFDWXIX-UHFFFAOYSA-N zinc silicate Chemical compound [Zn+2].[O-][Si]([O-])=O XSMMCTCMFDWXIX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 24
- 239000003546 flue gas Substances 0.000 description 24
- 239000000446 fuel Substances 0.000 description 9
- 239000000428 dust Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003500 flue dust Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000609240 Ambelania acida Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/008—Air heaters using solid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1877—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/189—Arrangement or mounting of combustion heating means, e.g. grates or burners using solid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention belongs to the field of heating equipment. The purpose of the invention is to provide a safe and efficient biomass hot-blast stove convenient for ash removal. The following technical scheme is adopted: the safe and efficient biomass hot-blast stove comprises a hot-blast stove housing and a combustion furnace arranged in the housing, wherein the combustion furnace comprises a plurality of combustion chambers. At least one of the plurality of combustion chambers is a double-layer combustion chamber, the double-layer combustion chamber is composed of an upper chamber and a lower chamber, and the upper chamber communicates with the lower chamber through a plurality of fire tubes. The upper part of the upper chamber penetrates through the upper surface of the housing and the top surface of the upper chamber is composed of a detachable fireproof cover plate, and a sealing assembly is arranged at the fireproof cover plate. The sealing assembly comprises a square groove formed along the inner wall of the upper chamber and a graphite packing arranged in the square groove, and sealing for the upper chamber is realized through compressing the graphite packing by the lower surface of the fireproof cover plate. According to the safe and efficient biomass hot-blast stove provided by the invention, the fireproof cover plate can be rapidly taken off because the top surface of the upper chamber of the double-layer combustion chamber is of a movable structure, thus ash removal and overhaul are facilitated.
Description
Technical field
The invention belongs to heating equipment field, and in particular to a kind of safely and efficiently biomass thermal wind furnace.
Background technology
Hot-blast stove starts extensively application in late 1970s as thermal power machinery in China, it in many industries
Become the regeneration product of electric heat source and conventional vapor power heat source.By prolonged production practices, it has been realised that only
Having by the use of hot blast could larger improve heat utilization efficiency and hot working effect as medium and carrier.Traditional electric heating and steam heat are dynamic
Power often configures multiple stage circulating fan in course of conveying, is allowed to finally still to indirectly form hot blast and is dried or heated behaviour
Make.This process there will naturally be a large amount of waste energy and cause the shortcomings such as the excessive, complex technical process of auxiliary device.It is biological
Matter hot-blast stove is a kind of New-type hot-air furnace using biomass energy as fuel, adopts biomass energy such as stalk, sawdust, sweet
Bagasse, rice chaff etc..
Existing biomass thermal wind furnace, due to Combustion chamber design unreasonable structure, does not only result in it hot in use
Utilization rate is relatively low, the substantial amounts of energy is wasted, also with numerous potential safety hazards.For example：1st, existing biomass thermal wind furnace by
The top strain of plate welding, high-temperature flue gas combustion chamber during up is directly adopted to concentrate in the top of combustion chamber, then
Plus the effect of hot dirty shrinkage, top of combustion chamber is easily caused to damage.2nd, existing biomass thermal wind furnace is to strengthen heat utilization efficiency,
Be usually provided with it is multiple be sequentially communicated combustion chamber, and each combustion chamber is divided into upper and lower two parts and by fire tube by two parts
Connection, combustion chamber bottom is further typically provided with a gray-drawing port.Although the presence of fire tube increases high-temperature flue gas and changes with distinguished and admirable
Hot area, makes heat utilization efficiency higher.But once fire tube is blocked, the dust stratification on combustion chamber top will be unable to be cleared up, if needed
Deashing is wanted then to dissect combustion chamber, this will bring great inconvenience to deashing work.Once deashing will also cause not in time gas explosion
The generation of phenomenon.3rd, between each combustion chamber of hot-blast stove by pass a bridge connection, pass a bridge as high-temperature flue gas each combustion chamber it
Between the unique passage that circulates, not only stress concentration and serious by flue gas corrosion, is easily damaged, once passing a bridge impaired, directly makes
Forming apparatus integrally cannot be used.
The content of the invention
It is an object of the invention to provide a kind of safely and efficiently biomass thermal wind furnace for being easy to deashing.
For achieving the above object, the technical solution adopted in the present invention is：A kind of safely and efficiently biomass hot air
Stove, including hot blast stove outer covering and the combustion furnace for being arranged on inside the shell, between the shell and combustion furnace hot-air channel is constituted；It is described
Combustion furnace includes multiple combustion chambers being sequentially communicated；By connection of passing a bridge between the combustion chamber；
At least one is double combustion chamber in the plurality of combustion chamber, and the double combustion chamber is by upper chamber and lower chambers
Constitute and between upper chamber and lower chambers by some fire tube connections；The top of the upper chamber through shell upper surface and
Top surface is made up of dismountable fireproof cover plate, and black box is arranged at the fireproof cover plate；The black box is included along epicoele
Square groove that the inwall of room is arranged and the graphite packing being arranged in square groove, sealing of the upper chamber at fireproof cover plate is by preventing fires
The lower surface of cover plate compresses graphite packing and constitutes；The fireproof cover plate is by the compression that holds down assembly.
Preferably, described to hold down assembly including many vertical screw rods being fixed on shell, the screw rod is with Fireproof cover
It is symmetrical centered on plate；A rounded briquetting is adapted on each screw rod, one is fixedly installed in the middle part of the briquetting
It is engaged with screw rod and through the nut of briquetting upper and lower surface, the nut is located at the eccentric position of briquetting.
Preferably, the combustion furnace includes the first combustion chamber, the second combustion chamber and the 3rd combustion chamber being sequentially communicated, described
Second combustion chamber and the 3rd combustion chamber are double combustion chamber；Pass a bridge and the second burning by first on the top of first combustion chamber
Upper chamber's connection of room, the lower chambers of second combustion chamber are passed a bridge by second and are connected with three-barreled lower chambers；Institute
State the body passed a bridge as ellipsoidal cross section.
Preferably, the charging aperture and sight burner for passing shell is set on first combustion chamber, is arranged on the 3rd combustion chamber
Pass the exhaust opening of shell；The air outlet that setting is connected with hot-air channel at charging aperture on the shell, near exhaust opening
Place arranges the air inlet connected with hot-air channel.
Preferably, the inside of the 3rd combustion chamber lower chambers arranges the fiery dedusting plate of gear, and the gear fire dedusting plate is by the 3rd
Combustion chamber lower chambers are divided into two combustion chambers that are separate and connecting with the 3rd combustion chamber upper chamber respectively, in two combustion chambers
One with the second combustion chamber, another arrange exhaust opening.
Preferably, the top surface of first combustion chamber is made up of the head sealing cover of arc.
Preferably, the first combustion chamber of the combustion furnace, the second combustion chamber and the 3rd combustion chamber are arranged in yi word pattern；It is described
Some deflectors are additionally provided between shell and combustion furnace, roundabout hot-air channel is constituted between shell, combustion furnace and deflector.
Preferably, the junction of on the inwall of the gap bridge and gap bridge and combustion chamber is provided with flame retardant coating.
Preferably, the side wall of first combustion chamber bottom, the side wall of the second combustion chamber lower chambers bottom and the 3rd burning
The side wall of two combustion chamber bottoms of room lower chambers is provided with ash-digging gate, and the ash-digging gate is also provided with towards the indoor one side of burning
There is flame retardant coating.
Preferably, described flame retardant coating is made up of refractory material, and described refractory material is constituted by following weight portion：Quartz
30 parts of sand, 45 parts of zirconium oxide, 50 parts of magnesia, 20 parts of silica, 10 parts of potassium silicate, 5 parts of magnesium silicate, 15 parts of sodium metasilicate, silicic acid
8 parts of zinc, 5 parts of antifungin, 40 parts of kaolin, 25 parts of bentonite.
Beneficial effects of the present invention are embodied a concentrated reflection of, and because the top surface of double combustion chamber upper chamber is movable structure, are prevented
Fire cover plate can be removed quickly, be easy to deashing and maintenance.When normally using, using the extruding fireproof cover plate that holds down assembly, make to prevent
Fire cover plate compresses graphite packing, so as to ensure that the sealing property of double combustion chamber upper chamber.When combustion furnace need maintenance or
During deashing, the epicoele of double combustion chamber is cleared up by fireproof cover plate is removed, fire tube is dredged, and traditional life
Material hot-blast stove to be compared and quickly realize cleaning by need not dissecting combustion furnace and overhaul, and very easy to use, security performance is more
It is high.The stability of fireproof cover plate stress when the one side that holds down assembly being preferably provided with ensure that compression, on the other hand can be quick
Realization fastening and loosen.The shape of gap bridge is preferably arranged to ellipse, on the one hand avoids to be passed a bridge caused by stress concentration and draws
Problem is split, simultaneously because the increase of gap bridge cross section, passing a bridge also can play a part of to be uniformly distributed high-temperature flue gas, make high-temperature flue gas
Can more scattered entrance combustion chamber, and then uniformly enter in fire tube and radiated, compare heat utilization efficiency with traditional approach
It is higher.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is A portions enlarged drawing in Fig. 1；；
Fig. 3 is the internal structure schematic diagram of combustion furnace；
Fig. 4 is B portions enlarged drawing in Fig. 3.
Specific embodiment
One kind with reference to shown in Fig. 1-4 safely and efficiently biomass thermal wind furnace, including hot blast stove outer covering 1 and it is arranged on shell
Combustion furnace in 1, between the shell 1 and combustion furnace hot-air channel is constituted.Combustion furnace is used for firing biomass fuel, biomass
The high-temperature flue gas produced after fuel combustion are exchanged heat with the air in hot-air channel, are then pumped to heat via blowing device
Equipment is used.The combustion furnace includes multiple combustion chambers being sequentially communicated, and high-temperature flue gas sequentially pass through multiple combustion chambers, make
Obtain fuel to be fully burned, improve the utilization rate of fuel.As shown in fig. 1, the quantity of combustion chamber is three, is followed successively by
First combustion chamber 10, the second combustion chamber 11, the 3rd combustion chamber 12.The quantity of actual upper combustion chamber can also be more, such as by 5
It is individual, 6 etc..By connection of passing a bridge between the combustion chamber, the quantity of combustion chamber is 3 in such as Fig. 1, then the first combustion chamber 10 with
Connected by the first gap bridge 2 between second combustion chamber 11, passed a bridge by second between the second combustion chamber 11 and the 3rd combustion chamber 12
13 connections, the tubular conduit that gap bridge i.e. high-temperature flue gas pass through, its shape can be square, circular etc..
At least one is double combustion chamber in the plurality of combustion chamber, and the double combustion chamber is by upper chamber and lower chambers
Constitute and connected by some fire tubes 3 between upper chamber and lower chambers, due to fire tube 3 in hot-air channel contact area much
More than upper chamber or the contact area of lower chambers and hot-air channel, therefore fire tube 3 is high-temperature flue gas and the air in hot-air channel
The main positions for being exchanged heat.But because the cross section of fire tube 3 is less, the volume of smoke of high-temperature flue gas entrainment is easily in fire tube 3
Place piles up, and causes fire tube 3 to block, and in turn results in the generation of gas explosion phenomenon, serious impact production safety.Simultaneously traditional hot blast
Stove, its upper chamber be full-closed structure, once fire tube 3 block or epicoele room in flue dust it is more when, need dissect burner hearth, during maintenance
Waste time and energy.But the top of the upper chamber of the present invention passes through the upper surface of shell 1 and top surface is by the structure of dismountable fireproof cover plate 4
Into, with reference to shown in Fig. 3 and 4, setting black box at the fireproof cover plate 4.The black box includes the inwall along upper chamber
The square groove 5 of setting and the graphite packing 6 being arranged in square groove 5, sealing of the upper chamber at fireproof cover plate 4 is by fireproof cover plate
4 lower surface compresses graphite packing 6 and constitutes, and graphite packing 6 possesses resistant to elevated temperatures characteristic, the energy on the premise of sealing property is ensured
Enough greatly improve the service life of the present invention.The fireproof cover plate 4 is by the compression that holds down assembly.
The described concrete constituted mode for holding down assembly is more, for example：Described holding down assembly can be included in Fireproof cover
The edge of plate 4 arranges one and encloses connecting portion, and the vertical bolt hole through fireproof cover plate 4 is arranged on connecting portion, directly will using bolt
Fireproof cover plate 4 is fixed with shell 1, so that fireproof cover plate 4 compresses graphite packing 6.Described holds down assembly in upper chamber in circle
Can also be included in arranging internal thread on the inwall on upper chamber top during shape, arrange outer in the outer surface of the side face of fireproof cover plate 4
Screw thread, fireproof cover plate 4 and upper chamber screw thread compress graphite packing 6 with merging.Certainly, more preferable way can also be with reference to figure
Shown in 1 and 2, described to hold down assembly including many vertical screw rods 7 being fixed on shell 1, the screw rod 7 is with fireproof cover plate 4
Centered on it is symmetrical, Tu Zhong upper chamber and fireproof cover plate 4 are square, then 4 liang of relative edges of fireproof cover plate correspond to
Screw rod 7 is provided with, screw rod 7 is fixed with shell 1.Certainly, it is in be distributed along the edge of fireproof cover plate 4 that many screw rods 7 can also be
Side's annular.As shown in Figure 2 a rounded briquetting 8 is adapted on each screw rod 7, the middle part of the briquetting 8 is fixedly installed one
Individual to be engaged with screw rod 7 and through the nut 9 of the upper and lower surface of briquetting 8, the nut 9 is located at the eccentric position of briquetting 8, so
One, the upper shifting of briquetting 8 can just be realized by rotation nut 9 and moved down, realize the compression to fireproof cover plate 4.
When normally using, the present invention makes fireproof cover plate 4 press graphite packing 6 using the extruding fireproof cover plate 4 that holds down assembly
Tightly, so as to ensure that the sealing property of double combustion chamber upper chamber.When combustion furnace needs maintenance or deashing, by fireproof cover plate 4
The epicoele of double combustion chamber is cleared up by removing, fire tube 3 is dredged, with traditional biomass thermal wind furnace nothing is compared
Cleaning is quickly realized by combustion furnace need to be dissected and is overhauled, very easy to use, security performance is higher.The compression being preferably provided with
The stability of the stress of fireproof cover plate 4, on the other hand quickly can realize fastening and loosen when on the one hand component ensure that compression.
In order to further improve the performance of the present invention, the gap bridge of the present invention can also be set to the body of ellipsoidal cross section, so
One, gap bridge drawing crack problem caused by stress concentration is on the one hand avoided, simultaneously because the increase of gap bridge cross section, passes a bridge and also can
Play a part of to be uniformly distributed high-temperature flue gas, enable the more scattered entrance combustion chamber of high-temperature flue gas, and then uniformly enter
Radiated in fire tube, compared heat utilization efficiency with traditional approach higher.As shown in FIG., that is, first passes a bridge 2 and second mistake
The section of bridge 13 is ellipse.
It is further typically provided with passing the charging aperture 14 of shell 1 and sight burner 21, charging aperture 14 on first combustion chamber 10
For throwing in fuel into the first combustion chamber 10, the combustion case that burner 21 is used for inside the first combustion chamber 10 of observation is seen.Such as Fig. 1
Shown, fuel sequentially passes through the first gap bridge 2, the upper chamber of the second combustion chamber 11, the second combustion after burning in the first combustion chamber 10
Behind fire tube 3, the lower chambers of the second combustion chamber 11, second the 13, the 3rd combustion chamber 12 of gap bridge of burning room 11 from the 3rd combustion chamber 12
The exhaust opening 15 of setting is discharged.Now the air flow in hot-air channel can be that in the vicinity the right side goes out, or the right side is entered a left side and gone out, when
So can also be other modes.But wherein more preferable way is, the trend of the air flow in hot-air channel and high-temperature flue gas
Conversely, the air outlet 16 that namely setting is connected with hot-air channel at charging aperture 14 on the shell 1, near exhaust opening 15
Place arranges the air inlet 17 connected with hot-air channel.So high-temperature flue gas just form reverse convection with air, improve air
Firing rate and the efficiency of heating surface.
Preferably way is also possible that as shown in figs. 1 and 3 the inside of the lower chambers of the 3rd combustion chamber 12 arranges vertical
Gear fire dedusting plate 22, the fiery dedusting plate 22 of the gear by the lower chambers of the 3rd combustion chamber 12 be divided into two it is separate and respectively with
The combustion chamber of the upper chamber of the 3rd combustion chamber 12 connection, in two combustion chambers connects with the second combustion chamber 11, another setting
Exhaust opening 15.So high-temperature flue gas are moved towards just into M shapes, on the one hand increased flue gas stroke, and heat transfer area so that heat
Exchange more fully, exhaust gas temperature is lower.Meanwhile, along with the increase of high-temperature flue gas stroke so that the burning particulate matter in flue gas
More fully, so as to improve the utilization rate of fuel.Further, since the presence of the fiery dedusting plate 22 of gear, when high-temperature flue gas are advanced
When keeping off at fiery dedusting plate 22, the flue dust carried secretly in high-temperature flue gas to strike and be deposited in the 3rd combustion chamber 12 after the fiery dedusting plate 22 of gear
Lower chambers in, be easy to the collection of flue dust, so as to reduce the inside laying dust of fire tube 3 of the 3rd combustion chamber 12, it is ensured that heat-transfer effect
It is unaffected.
The present invention in use, the first combustion chamber 10 as the main place of fuel combustion, its internal temperature is high,
Pressure is big, and high-temperature flue gas are especially concentrated during constantly rising to the power of the top surface of the first combustion chamber 10, therefore, more preferably
Way be that the top surface of first combustion chamber 10 is made up of the head sealing cover 18 of the arc welded with the main body of the first combustion chamber 10,
As shown in figure 1, on the one hand the setting of head sealing cover 18 avoids stress concentration and make the structural strength of the first combustion chamber 10 higher, use
Life-span is longer, and on the other hand, the head sealing cover 18 of arc reduces the resistance of hot-air flowing, makes the air flow in hot-air channel
More smoothly, improve heat exchange efficiency.First combustion chamber 10, the second combustion chamber 11 and the 3rd combustion chamber 12 can be with product words
Shape arrange, it is staggered, due to install the present invention place it is typically more narrow.Preferably way is, the of the combustion furnace
One combustion chamber 10, the second combustion chamber 11 and the 3rd combustion chamber 12 are arranged in yi word pattern.As being successively from left to right namely in Fig. 1
First combustion chamber 10, the second combustion chamber 11 and the 3rd combustion chamber 12.Some water conservancy diversion are additionally provided between the shell 1 and combustion furnace
Plate 19, constitutes roundabout hot-air channel between shell 1, combustion furnace and deflector 19, the effect of deflector 19 is to lead to hot blast
The roundabout advance of air in road, so as to improve the heat exchange efficiency with high-temperature flue gas, the concrete set-up mode of deflector 19 is more, both
Can be as shown in Figure 1, multiple vertical deflectors 19 are transversely interlaced.Can also increase on this basis more
Many horizontal deflectors 19, constitute the horizontal and vertical roundabout hot-air channel for combining.
The gap bridge of the present invention as the interface channel between combustion chamber and combustion chamber, due to the long-term corruption by high-temperature flue gas
Erosion, more preferable way is on the inwall of the gap bridge and gap bridge is provided with flame retardant coating 20, flame retardant coating with the junction of combustion chamber
20 are made using refractory material, and gap bridge can be protected, and improve the service life of the present invention.In addition, in order to more just
In the dust stratification of cleaning furnace interior, can be with the side wall of the bottom of the first combustion chamber 10, the lower chambers of the second combustion chamber 11
The side wall of bottom and the side wall of the 3rd combustion chamber 12 lower chambers, two combustion chamber bottoms are provided with ash-digging gate, so, by beating
Open ash-digging gate just the dust that the first combustion chamber 10, the second combustion chamber 11 and the bottom of the 3rd combustion chamber 12 are collected can be drawn out.Institute
State ash-digging gate and be also equipped with flame retardant coating 20 towards the indoor one side of burning, so as to avoiding ash-digging gate from being burnt or crumpling.
Described flame retardant coating 20 is made up of refractory material, and described refractory material is constituted by following weight portion：Quartz sand 30
Part, 45 parts of zirconium oxide, 50 parts of magnesia, 20 parts of silica, 10 parts of potassium silicate, 5 parts of magnesium silicate, 15 parts of sodium metasilicate, zinc silicate 8
Part, 5 parts of antifungin, 40 parts of kaolin, 25 parts of bentonite.
Flame retardant coating of the present invention is made by the following method：
A, will zirconium oxide, magnesia, silica, potassium silicate, magnesium silicate, sodium metasilicate, zinc silicate, antifungin mixing after crush
To 300-350 mesh, mixed powder is obtained.
B, by quartz sand, mixed powder, kaolin, bentonite mixing after, compare 5 by solid-liquid weight:1 adds water, mixing to stir
Mix uniformly prepared refractory material.
C, by refractory material at workpiece Jing spontaneously dry or high temperature drying constitute flame retardant coating 20.
The generally thickness of flame retardant coating 20 is in more than 2cm, but specific thickness needs to be configured according to actual conditions.
Two groups of still uninstalled ash-digging gate door-plates are taken, per group each 3,3 in one of which ash-digging gate door-plate coats this
Fireproof coating and thickness described in invention is respectively 2cm, 3cm and 4cm, 3 in another group ash-digging gate door-plate coating application number
Normal refractory coating described in 201410291620.5 patent document and thickness is respectively 2cm, 3cm and 4cm.Two groups are drawn ash
Door board is dried 5 hours at 200 DEG C, then takes out and carry out respectively high temperature resistant experiment.
According to upper table as can be seen that the flame retardant coating 20 of refractory material of the present invention composition, not only material cost is extremely low
And its resistance to elevated temperatures is high, compared with conventional refractory material, its resistant to elevated temperatures upper limit is greatly lifted.
Claims (10)
1. one kind safely and efficiently biomass thermal wind furnace, including hot blast stove outer covering (1) and the combustion furnace being arranged in shell (1),
The shell (1) constitutes hot-air channel and combustion furnace between；The combustion furnace includes multiple combustion chambers being sequentially communicated；The combustion
Burn between room by connection of passing a bridge；
It is characterized in that：At least one is double combustion chamber in the plurality of combustion chamber, and the double combustion chamber is by upper chamber
And lower chambers are constituted and between upper chamber and lower chambers by some fire tube (3) connections；The top of the upper chamber is through outside
The upper surface of shell (1) and top surface is made up of dismountable fireproof cover plate (4), fireproof cover plate (4) place arranges black box；Institute
Stating black box includes the square groove (5) that arranges along the inwall of upper chamber and the graphite packing (6) that is arranged in square groove (5), described
Sealing of the upper chamber at fireproof cover plate (4) place compresses graphite packing (6) and constitutes by the lower surface of fireproof cover plate (4)；The fire prevention
Cover plate (4) is by the compression that holds down assembly.
2. safely and efficiently biomass thermal wind furnace according to claim 1, it is characterised in that：It is described to hold down assembly including many
Root is fixed on the vertical screw rod (7) on shell (1), and the screw rod (7) is symmetrical centered on fireproof cover plate (4)；It is each
A rounded briquetting (8) is adapted on root screw rod (7), one is fixedly installed in the middle part of the briquetting (8) and is matched with screw rod (7)
Close and through the nut (9) of briquetting (8) upper and lower surface, the nut (9) is at the eccentric position of briquetting (8).
3. safely and efficiently biomass thermal wind furnace according to claim 2, it is characterised in that：The combustion furnace is included successively
First combustion chamber (10), the second combustion chamber (11) and the 3rd combustion chamber (12) of connection, second combustion chamber (11) and the 3rd
Combustion chamber (12) is double combustion chamber；The top of first combustion chamber (10) is by the first gap bridge (2) and the second combustion chamber
(11) upper chamber's connection, the lower chambers of second combustion chamber (11) are by the second gap bridge (13) and the 3rd combustion chamber (12)
Lower chambers are connected；It is described to pass a bridge as the body of ellipsoidal cross section.
4. safely and efficiently biomass thermal wind furnace according to claim 3, it is characterised in that：First combustion chamber (10)
It is upper that the charging aperture (14) and sight burner (21) for passing shell (1) is set, the row for passing shell (1) is set on the 3rd combustion chamber (12)
Mouth (15)；The air outlet (16) connected with hot-air channel near the setting of charging aperture (14) place on the shell (1), near smoke evacuation
Mouth (15) place arranges the air inlet (17) connected with hot-air channel.
5. safely and efficiently biomass thermal wind furnace according to claim 4, it is characterised in that：3rd combustion chamber (12)
Gear fiery dedusting plate (22) is set inside lower chambers, and the 3rd combustion chamber (12) lower chambers are divided into two by gear fire dedusting plate (22)
Combustion chamber that is individual separate and connecting with the 3rd combustion chamber (12) upper chamber respectively, in two combustion chambers and the second burning
Room (11) connects, and another arranges exhaust opening (15).
6. safely and efficiently biomass thermal wind furnace according to claim 5, it is characterised in that：First combustion chamber (10)
Top surface be made up of the head sealing cover (18) of arc.
7. safely and efficiently biomass thermal wind furnace according to claim 6, it is characterised in that：First combustion of the combustion furnace
Burn room (10), the second combustion chamber (11) and the 3rd combustion chamber (12) to arrange in yi word pattern；The shell (1) is gone back and combustion furnace between
Some deflectors (19) are provided with, between shell (1), combustion furnace and deflector (19) roundabout hot-air channel is constituted.
8. safely and efficiently biomass thermal wind furnace according to claim 7, it is characterised in that：On the inwall of the gap bridge and
Pass a bridge and be provided with flame retardant coating (20) with the junction of combustion chamber.
9. safely and efficiently biomass thermal wind furnace according to claim 8, it is characterised in that：First combustion chamber (10)
The side wall of bottom, the side wall of the second combustion chamber (11) lower chambers bottom and the 3rd two combustion chamber bottoms of combustion chamber (12) lower chambers
Side wall be provided with ash-digging gate, the ash-digging gate is also equipped with flame retardant coating (20) towards the indoor one side of burning.
10. the safely and efficiently biomass thermal wind furnace according to any one in claim 8 and 9, it is characterised in that：It is described
Flame retardant coating (20) be made up of refractory material, described refractory material is constituted by following weight portion：30 parts of quartz sand, zirconium oxide 45
Part, 50 parts of magnesia, 20 parts of silica, 10 parts of potassium silicate, 5 parts of magnesium silicate, 15 parts of sodium metasilicate, 8 parts of zinc silicate, 5 parts of antifungin,
40 parts of kaolin, 25 parts of bentonite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610959131.1A CN106642673A (en) | 2016-11-03 | 2016-11-03 | Safe and efficient biomass hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610959131.1A CN106642673A (en) | 2016-11-03 | 2016-11-03 | Safe and efficient biomass hot-blast stove |
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| Publication Number | Publication Date |
|---|---|
| CN106642673A true CN106642673A (en) | 2017-05-10 |
Family
ID=58821687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610959131.1A Pending CN106642673A (en) | 2016-11-03 | 2016-11-03 | Safe and efficient biomass hot-blast stove |
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| Country | Link |
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| CN (1) | CN106642673A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566968A (en) * | 2018-06-05 | 2019-12-13 | 湖北舒怡鑫环保科技有限公司 | Beasts and birds innocent treatment high temperature furnace |
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Application publication date: 20170510 |