CN106642076B - A kind of heat-preserving boiler - Google Patents
A kind of heat-preserving boiler Download PDFInfo
- Publication number
- CN106642076B CN106642076B CN201611009421.6A CN201611009421A CN106642076B CN 106642076 B CN106642076 B CN 106642076B CN 201611009421 A CN201611009421 A CN 201611009421A CN 106642076 B CN106642076 B CN 106642076B
- Authority
- CN
- China
- Prior art keywords
- heat
- burner hearth
- gitter brick
- preserving
- brick
- Prior art date
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- 239000011449 brick Substances 0.000 claims abstract description 68
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 36
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000004927 clay Substances 0.000 claims abstract description 32
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 25
- 235000014380 magnesium carbonate Nutrition 0.000 claims abstract description 25
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 25
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 19
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 18
- 229910017083 AlN Inorganic materials 0.000 claims abstract description 17
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910000166 zirconium phosphate Inorganic materials 0.000 claims abstract description 13
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims abstract description 3
- 238000005245 sintering Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 239000000395 magnesium oxide Substances 0.000 claims description 8
- 238000000748 compression moulding Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 6
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 4
- 239000003818 cinder Substances 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 238000009413 insulation Methods 0.000 abstract description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 14
- 238000005338 heat storage Methods 0.000 description 8
- 230000035939 shock Effects 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 235000003283 Pachira macrocarpa Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 241001083492 Trapa Species 0.000 description 1
- 235000014364 Trapa natans Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- -1 chloric acid Aluminum Chemical compound 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- SDKTUKJXHDZWMB-UHFFFAOYSA-N phosphoric acid zirconium Chemical compound [Zr].P(O)(O)(O)=O SDKTUKJXHDZWMB-UHFFFAOYSA-N 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 235000009165 saligot Nutrition 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B60/00—Combustion apparatus in which the fuel burns essentially without moving
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
- C04B2235/3865—Aluminium nitrides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/447—Phosphates or phosphites, e.g. orthophosphate or hypophosphite
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The present invention provides a kind of heat-preserving boiler, belongs to heat-preserving equipment technical field.The heat-preserving boiler includes burner hearth, and the top of burner hearth is equipped with the chimney being connected to burner hearth inside；Lower part in burner hearth is equipped with fire grate, and burner hearth includes external protection, insulating layer and fire brick layer from outside to inside, is additionally provided with gitter brick in burner hearth；The gitter brick by following raw material by weight percentage through mixing, molding, drying, be sintered: high-al clay 25-30%, alumina silicate 20-25%, basic zirconium phosphate 15-20%, highly-purity magnesite 6-10%, aluminium nitride 8-11%, titanium dioxide 2-3%, silica solution 6-10%, water 4-6%.Holding furnace of the invention has the advantages that structure is simple, heat insulation effect is good, and the thermal efficiency is high, heat supply even, use is durable, and controllability is strong.
Description
[technical field]
The present invention relates to heat-preserving equipment technical fields, and in particular to a kind of heat-preserving boiler.
[background technique]
With the development of economy, energy shortage and environmental problem have become global common focus of attention problem, energy conservation
It also increasingly attracts people's attention with environmental protection.Boiler is a kind of energy conversion, it passes through the fuel such as coal, oil, natural gas
Chemical energy is released, water or other heat-conducting mediums are transferred energy to by diabatic process, in vapour form or heat-conducting medium form
Directly feed the various forms of energy needed for industrial production.It is directed to the conversion, storage and transportational process of energy, each
The use of the power-saving technology of link all has great importance to energy conservation and environmental protection.
Heat storage technology is to solve boiler manfacturing and using one of the important means of industry energy crisis, realization industrial energy saving.
The high-temperature flue gas waste heat that the generations such as blast furnace, hot-blast stove, coke oven can be recycled by Regenerative Combustion Technology recycles cigarette using regenerative chamber
The thermal efficiency of stove significantly improves after gas waste heat, and can reduce the discharge of pollutant；By installing accumulation of heat in heater unit
Material can play the effect that heat absorption is fast, thermal storage time is long, heat release is slow, to achieve the purpose that energy saving；By in electricity consumption
The lowest point period carries out accumulation of energy with heat-storing material, heats in electricity peak period heat release, can slow down the pressure of operation of power networks.So
And current boiler is not due to making good use of heat storage technology, however it remains heat insulation effect is bad, waste of energy energy technical problem.
[summary of the invention]
Goal of the invention of the invention is: in view of the above problems, providing a kind of heat-preserving boiler, has structure letter
The advantages that single, heat insulation effect is good, and the thermal efficiency is high, heat supply even, use is durable, and controllability is strong.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A kind of heat-preserving boiler, including burner hearth, the top of burner hearth are equipped with the chimney being connected to burner hearth inside；Lower part in burner hearth
Equipped with fire grate, the burner hearth includes external protection, insulating layer and fire brick layer from outside to inside, is additionally provided with gitter brick in burner hearth；
The gitter brick by following raw material by weight percentage through mixing, molding, drying, be sintered: high-al clay 25-30%, silicic acid
Aluminium 20-25%, basic zirconium phosphate 15-20%, highly-purity magnesite 6-10%, aluminium nitride 8-11%, TiO22-3%, silica solution 6-10%, water
4-6%.
More preferably, the granularity of the high-al clay is 0.1-1mm, and the content of aluminum oxide is 65% or more in high-al clay；
The granularity of the highly-purity magnesite is 0.1-1mm, and the content of MgO is 96-98%, remaining is impurity.The present invention is having insulating layer
With setting gitter brick inside the burner hearth of fire brick layer, a large amount of thermal energy of burning release are not only can be absorbed in gitter brick, when burning produces
When raw high-temperature flue gas passes through gitter brick, moreover it is possible to absorb heat entrained by high-temperature flue gas, pernicious gas, dust, not only reduce
Smog discharge temperature improves the efficiency of heat absorption, reduces the discharge of pollutant.
More preferably, the gitter brick is made by the following method: getting out raw material according to weight percent；By high-al clay,
Alumina silicate, basic zirconium phosphate, aluminium nitride, titanium dioxide are mixed into premix；Water, silica solution and highly-purity magnesite are uniformly mixed right
After be added in premix, after mixing evenly pressure be 1.5-1.8Mpa pressure under compression moulding, in 120-150 DEG C of drying
It after 20-24 hours, is put into high temperature kiln, is sintered in 1200-1300 DEG C, sintering time is 2-3 hours.
More preferably, gitter brick rectangular array in burner hearth is arranged, which has heat storage capacity height, resistance to thermal shock
Property it is good, cost of material is low and the longer feature of service life, and when use surrounds heat transfer tube and medium, the heat exchange type of boiler
Formula mainly absorbs heat by gitter brick, and gitter brick again exchanges heat to heat-conducting medium, and heat-conducting medium is defeated to use by heat
Hot equipment, since the heat that burning generates is not to directly act on heat-conducting medium, therefore the stove fire in combustion furnace not will have a direct impact on
The temperature of heat-conducting medium, and gitter brick heat release and heat transfer are steady, ensure that the temperature of heat-conducting medium will not be generated with stove fire situation
Obvious fluctuation, and in the case where truce, gitter brick can also continue to discharge a part of heat, does not need personnel's moment and controls
Stove fire and furnace temperature.
More preferably, the burner hearth is equipped with observation window, convenient for the combustion case in observation boiler.
More preferably, it is equipped with cinder storage tank below the fire grate, for collecting fuel residues.
More preferably, the external protection is made for stainless steel, has the advantages that solid, durable.
More preferably, the fire brick layer is made using zirconia refractory.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, gitter brick is arranged in the burner hearth of heat-preserving boiler in the present invention, uses insulating layer in burner hearth sidewall, can be improved heat
The efficiency absorbed is measured, gitter brick also carries out heat with high-temperature flue gas and exchanges and adsorb the ash carried in flue gas, dust, reduces cigarette
The discharge temperature of gas and the discharge for reducing pollutant, play the effect of energy-saving and emission-reduction.
2, present invention gitter brick set in holding furnace be using high-al clay, alumina silicate, basic zirconium phosphate, highly-purity magnesite,
The raw materials such as aluminium nitride, silica solution, titanium dioxide are mixed by certain proportion, and wherein high-al clay is metallurgical industry and other works
The widely used refractory material of industry, for refractory temperature at 1700 DEG C or more, main component is aluminium oxide, is aoxidized in premium high-alumina soil
The aluminium oxide that the content of aluminium usually contains in 60% or more, high-al clay has the characteristics that high specific heat capacity, therefore heat storage capacity is good.
Alumina silicate has low heat conductivity, excellent thermal stability and chemical stability；Basic zirconium phosphate is resistant to stronger acid and certain alkali
Degree, stability and mechanical strength are very strong, and chemical stability is higher, and thermal expansion coefficient is small；Highly-purity magnesite is to select natural superfine water chestnut
Magnesium ore purification by floatation is calcined through light-burned, fine grinding, pressure ball, superhigh temperature oil shaft furnace, is brickmaking, is made the high-quality of refractory material
Raw material.Aluminium nitride category diamond-like nitride, highest can be stabilized to 2200 DEG C, and room temperature intensity is high, and intensity is with the raising of temperature
Decline slower；Thermal conductivity is good, and thermal expansion coefficient is small, is good heat shock resistance material, has the characteristics that using durable.Titanium dioxide
Titanium is used as sintering aids in system, can reduce the temperature being sintered when gitter brick sintering；Silica solution conduct in gitter brick
With binder, have the characteristics that acidproof and resistant to high temperature.Above-mentioned major ingredient be combined with each other and makes that the heat storage capacity of gitter brick is good, resistance to thermal shock
Property is good, and the silica in magnesia, silica solution and titanium dioxide one using durable feature, while in highly-purity magnesite act as
With, make gitter brick system sintering when system in uniform small grains, the intensity of gitter brick is greatly improved, and is further mentioned
High thermal stability.Therefore, using gitter brick of the invention, keep holding furnace thermal loss of the invention few, energy-saving effect more preferably, by
It is good in gitter brick resistance to heat shocks, also have the advantages that using durable.
[Detailed description of the invention]
Fig. 1 is a kind of functional schematic of heat-preserving boiler of the invention.
Wherein, 1- burner hearth, 1a- external protection, 1b insulating layer, 1c- fire brick layer, 2- chimney, 3- gitter brick, 4- fire grate,
5- cinder storage tank, 6- feed opening, 7- skimming gate, 8- observation window.
[specific embodiment]
In order to more clearly express the present invention, the present invention is made furtherly below in conjunction with the drawings and specific embodiments
It is bright.
As shown in Figure 1, being a kind of functional schematic of heat-preserving boiler of the invention, which includes burner hearth 1, in furnace
The top of thorax 1 is equipped with and the chimney 2 that is connected to inside burner hearth 1；Lower part in burner hearth 1 is equipped with fire grate 4, and 4 lower section of fire grate is preferably set
There is cinder storage tank 5, for storing the residue of burning, offers fuel feed opening 6 and skimming gate on the hearth wall close to fire grate 4
7, convenient for adding the cleaning of fuel and residue.The whole burner hearth 1 includes external protection 1a, insulating layer 1b and refractory brick from outside to inside
Layer 1c, wherein external protection 1a preferably uses stainless steel material to make, and has the characteristics that sturdy and durable；Insulating layer 1b is by keeping the temperature
Material is made, and plays the role of heat-insulation and heat-preservation, and thermal insulation material used can be alumina silicate, rock wool, glass fibre, chloric acid
Aluminum fiber cotton or a mixture of these materials.Fire brick layer 1c is preferably made using zirconia refractory.In burner hearth 1
It is additionally provided with gitter brick 3, the rectangular array in burner hearth 1 of gitter brick 3 is arranged, and gitter brick 3 is by heat transfer tube and medium when use
It surrounds, the heat exchange form of boiler mainly passes through gitter brick 3 and absorbs heat, and gitter brick 3 again exchanges heat to heat-conducting medium,
Heat-conducting medium arrives heating equipment for heat is defeated, since the heat that burning generates is not to directly act on heat-conducting medium, therefore combustion furnace
Interior stove fire not will have a direct impact on the temperature of heat-conducting medium, and 3 heat release of gitter brick and heat transfer are steady, ensure that the temperature of heat-conducting medium
Degree will not generate obvious fluctuation with stove fire situation, and in the case where truce, and gitter brick 3 can also continue to discharge a part of heat
Amount, not needing personnel's moment controls stove fire and furnace temperature.In addition, the combustion case in burner hearth 1 is observed for convenience, on burner hearth 1
It is additionally provided with observation window 8.
Gitter brick is further described below by way of specific embodiment.
Embodiment 1
A kind of gitter brick in heat-preserving boiler is mixed by weight ratio by following raw material: high-al clay 25kg,
Alumina silicate 25kg, basic zirconium phosphate 20kg, highly-purity magnesite 10kg, aluminium nitride 8kg, titanium dioxide 2kg, silica solution 6kg, water 4kg.Its
In, it is desirable that the granularity of high-al clay is 0.1-1mm, and the content of aluminum oxide is 65% or more in high-al clay；It is required that highly-purity magnesite
Granularity be 0.1-1mm, the content of MgO is 96%, remaining is impurity.
Above-mentioned gitter brick is made by the following method: getting out raw material according to the weight ratio；By high-al clay, alumina silicate, phosphorus
Sour zirconium, aluminium nitride, titanium dioxide are mixed into premix；Water, silica solution and highly-purity magnesite are uniformly mixed and are then added to
In premix, in the case where pressure is the pressure of 1.5Mpa, compression moulding is put into height after 120 DEG C 24 hours dry after mixing evenly
It in warm kiln, is sintered in 1200-1300 DEG C, sintering time is 2 hours.
Embodiment 2
A kind of gitter brick in heat-preserving boiler is mixed by weight ratio by following raw material: high-al clay 30kg,
Alumina silicate 20kg, basic zirconium phosphate 15kg, highly-purity magnesite 6kg, aluminium nitride 9kg, titanium dioxide 3kg, silica solution 10kg, water 6kg.Its
In, it is desirable that the granularity of high-al clay is 0.1-1mm, and the content of aluminum oxide is 65% or more in high-al clay；It is required that highly-purity magnesite
Granularity be 0.1-1mm, the content of MgO is 98%, remaining is impurity.
Above-mentioned gitter brick is made by the following method: getting out raw material according to the weight ratio；By high-al clay, alumina silicate, phosphorus
Sour zirconium, aluminium nitride, titanium dioxide are mixed into premix；Water, silica solution and highly-purity magnesite are uniformly mixed and are then added to
In premix, in the case where pressure is the pressure of 1.8Mpa, compression moulding is put into height after 150 DEG C 20 hours dry after mixing evenly
It in warm kiln, is sintered in 1200-1300 DEG C, sintering time is 3 hours.
Embodiment 3
A kind of gitter brick in heat-preserving boiler is mixed by weight ratio by following raw material: high-al clay 28kg,
Alumina silicate 22kg, basic zirconium phosphate 16kg, highly-purity magnesite 8kg, aluminium nitride 11kg, titanium dioxide 3kg, silica solution 7kg, water 5kg.Its
In, it is desirable that the granularity of high-al clay is 0.1-1mm, and the content of aluminum oxide is 65% or more in high-al clay；It is required that highly-purity magnesite
Granularity be 0.1-1mm, the content of MgO is 97%, remaining is impurity.
Above-mentioned gitter brick is made by the following method: getting out raw material according to the weight ratio；By high-al clay, alumina silicate, phosphorus
Sour zirconium, aluminium nitride, titanium dioxide are mixed into premix；Water, silica solution and highly-purity magnesite are uniformly mixed and are then added to
In premix, in the case where pressure is the pressure of 1.6Mpa, compression moulding is put into height after 130 DEG C 22 hours dry after mixing evenly
It in warm kiln, is sintered in 1200-1300 DEG C, sintering time is 2.5 hours.
Comparative example 1
A kind of gitter brick is mixed by weight ratio by following raw material: high-al clay 28kg, alumina silicate 22kg, phosphoric acid
Zirconium 16kg, highly-purity magnesite 8kg, aluminium nitride 11kg, water 5kg.Wherein, it is desirable that the granularity of high-al clay is 0.1-1mm, three in high-al clay
The content of Al 2 O is 65% or more；It is required that the granularity of highly-purity magnesite is 0.1-1mm, the content of MgO is 97%, remaining is miscellaneous
Matter.
The preparation method comprises the following steps: getting out raw material according to the weight ratio；High-al clay, alumina silicate, basic zirconium phosphate, aluminium nitride are mixed equal
It is even at premix；Water and highly-purity magnesite are uniformly mixed and are then added in premix, is after mixing evenly 1.6Mpa in pressure
Pressure under compression moulding, after dry 22 hours, be put into high temperature kiln, be sintered in 1200-1300 DEG C, sintering time at 130 DEG C
It is 2.5 hours.
Comparative example 2
A kind of gitter brick in heat-preserving boiler is mixed by weight ratio by following raw material: high-al clay 33kg,
Basic zirconium phosphate 24kg, highly-purity magnesite 15kg, aluminium nitride 14kg, titanium dioxide 3kg, silica solution 7kg, water 5kg.Wherein, it is desirable that high alumina
The granularity of soil is 0.1-1mm, and the content of aluminum oxide is 65% or more in high-al clay；It is required that the granularity of highly-purity magnesite is 0.1-
The content of 1mm, MgO are 97%, remaining is impurity.
The preparation method comprises the following steps: getting out raw material according to the weight ratio；High-al clay, basic zirconium phosphate, aluminium nitride, titanium dioxide are mixed
Uniformly at premix；Water, silica solution and highly-purity magnesite are uniformly mixed and are then added in premix, after mixing evenly in pressure
It is put into high temperature kiln after 130 DEG C are 22 hours dry for compression moulding under the pressure of 1.6Mpa, is sintered in 1200-1300 DEG C,
Sintering time is 2.5 hours.
Gitter brick produced by the invention is good due to heat storage capacity, moreover it is possible to continue to supply within a period of time after boiler stops burning
Satisfactory thermal energy, so that heat insulation effect is very good.Storage of the invention is being used in order to verify heat-preserving boiler of the invention
Heat insulation effect after hot brick compares it from effect caused by different heat storages, by equal amount, different formulations
Gitter brick by several times be put into same burner hearth, stop burning after the temperature in the middle part of burner hearth reaches 600 DEG C, record burner hearth in the middle part of temperature with
The variation of time, grouping experiment situation is as follows, and test result is shown in Table 1.
Experimental group 1-3: respectively using the gitter brick in 1-3 of the embodiment of the present invention；
Contrast groups 1: relative to embodiment 3, titanium dioxide and silica solution are not added with；
Contrast groups 2: relative to embodiment 3, being not added with alumina silicate, replaces its parts by weight respectively with other raw materials；
Contrast groups 3: it is tested using common brick；
Temperature in the middle part of 1 burner hearth of table stops burning after reaching 600 DEG C, and middle portion temperature changes over time situation
As can be seen from the above table, using the boiler middle portion temperature of unselected clay gitter brick after stopping burning 80 minutes, at a temperature of
152 DEG C are dropped to, is not able to satisfy the demand of heat supply completely, and gitter brick of the invention is after stopping burning 80 minutes, moreover it is possible to it keeps higher
Temperature, can persistently give heating equipment heat supply, heat-accumulating and-keeping effect is significantly improved compared to clay gitter brick.Though contrast groups 1
So it is not added with titanium dioxide and silica solution, but heat insulation effect and difference of the present invention and little, it is seen that play accumulation of heat effect not
It is both raw materials.Contrast groups 2 are due to being not used alumina silicate, and the temperature decline in burner hearth is relatively fast, it is seen that alumina silicate
Addition and other components can play synergistic effect, to improve the heat storing and heat preserving ability of gitter brick of the present invention.
Gitter brick of the invention is since compatibility is reasonable, high yield rate, and yield rate has preferable mechanical up to 99% or more
Intensity, anti-fatigue ability and thermal shock resistance, long service life, through being stored made from specific testing example 1-3, contrast groups 1-3
The related process parameters of hot brick such as the following table 2:
The related process parameters of 2 gitter brick of table
It can be seen that gitter brick of the invention compared with the data that common brick is tested from the data of table 2, specific heat capacity
It improves a lot, therefore heat storage capacity greatly enhances；Bulk density is big, while the porosity is few, the identical heat-retaining capacity the case where
Under, the quantity of required gitter brick is reduced.The present invention compares the mechanical strength also with higher of contrast groups 1 and good anti-thermal shock
Property, it is ensured that finished product has permanent service life in the heating repeatedly and heat release circulation of room temperature -800.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (8)
1. a kind of heat-preserving boiler, including burner hearth, the top of burner hearth is equipped with the chimney being connected to burner hearth inside；Lower part in burner hearth is set
There is fire grate, it is characterised in that: the burner hearth includes external protection, insulating layer and fire brick layer from outside to inside, is also set up in burner hearth
There is gitter brick；The gitter brick by following raw material by weight percentage through mixing, molding, drying, be sintered: high-al clay 25-
30%, alumina silicate 20-25%, basic zirconium phosphate 15-20%, highly-purity magnesite 6-10%, aluminium nitride 8-11%, titanium dioxide 2-3%, silicon
Colloidal sol 6-10%, water 4-6%.
2. a kind of heat-preserving boiler according to claim 1, it is characterised in that: the granularity of the high-al clay is 0.1-1mm, high
The content of aluminum oxide is 65% or more in alumina；The granularity of the highly-purity magnesite is 0.1-1mm, and the content of MgO is 96-
98%, remaining is impurity.
3. a kind of heat-preserving boiler according to claim 2, it is characterised in that the gitter brick is made by the following method: pressing
Raw material is got out according to weight percent；High-al clay, alumina silicate, basic zirconium phosphate, aluminium nitride, titanium dioxide are mixed into premix
Material；Water, silica solution and highly-purity magnesite are uniformly mixed and are then added in premix, is after mixing evenly 1.5- in pressure
Compression moulding under the pressure of 1.8Mpa after dry 20-24 hours, is put into high temperature kiln, in 1200-1300 DEG C at 120-150 DEG C
Sintering, sintering time are 2-3 hours.
4. a kind of heat-preserving boiler according to claim 3, it is characterised in that: gitter brick rectangular array in burner hearth
Arrangement.
5. a kind of heat-preserving boiler according to claim 3, it is characterised in that: the burner hearth is equipped with observation window.
6. a kind of heat-preserving boiler according to claim 3, it is characterised in that: be equipped with cinder storage tank below the fire grate.
7. a kind of heat-preserving boiler according to claim 3, it is characterised in that: the external protection be stainless steel make and
At.
8. a kind of heat-preserving boiler according to claim 3, it is characterised in that: the fire brick layer is using zirconium matter fire resisting
Material is made.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRMU8702747U2 (en) * | 2007-09-05 | 2009-04-22 | Carlos Augusto Barbosa | non-collapsible solid waste solid waste incinerator built with 20x20x40 refractory air and water treatment conventional and uvc |
| CN101801515A (en) * | 2007-07-17 | 2010-08-11 | 普拉斯科能源Ip控股公司毕尔巴鄂-沙夫豪森分公司 | A gas reformulation system comprising means to optimize the effectiveness of gas conversion |
| CN103968651A (en) * | 2014-04-16 | 2014-08-06 | 李萃坤 | Energy-saving baking device |
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2016
- 2016-11-16 CN CN201611009421.6A patent/CN106642076B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101801515A (en) * | 2007-07-17 | 2010-08-11 | 普拉斯科能源Ip控股公司毕尔巴鄂-沙夫豪森分公司 | A gas reformulation system comprising means to optimize the effectiveness of gas conversion |
| BRMU8702747U2 (en) * | 2007-09-05 | 2009-04-22 | Carlos Augusto Barbosa | non-collapsible solid waste solid waste incinerator built with 20x20x40 refractory air and water treatment conventional and uvc |
| CN103968651A (en) * | 2014-04-16 | 2014-08-06 | 李萃坤 | Energy-saving baking device |
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