CN107448976A - The self-cleaning fire coal cooking and heating furnace and cooking heating method and purposes of a kind of energy-conserving and environment-protective - Google Patents
The self-cleaning fire coal cooking and heating furnace and cooking heating method and purposes of a kind of energy-conserving and environment-protective Download PDFInfo
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- CN107448976A CN107448976A CN201710823258.5A CN201710823258A CN107448976A CN 107448976 A CN107448976 A CN 107448976A CN 201710823258 A CN201710823258 A CN 201710823258A CN 107448976 A CN107448976 A CN 107448976A
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- 238000010411 cooking Methods 0.000 title claims abstract description 190
- 238000010438 heat treatment Methods 0.000 title claims abstract description 158
- 239000003245 coal Substances 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004140 cleaning Methods 0.000 title claims abstract description 30
- 238000002309 gasification Methods 0.000 claims abstract description 21
- 239000008236 heating water Substances 0.000 claims abstract description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 57
- 239000003546 flue gas Substances 0.000 claims description 57
- 239000002802 bituminous coal Substances 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000571 coke Substances 0.000 claims description 7
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims description 5
- 239000003830 anthracite Substances 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 description 23
- 238000003763 carbonization Methods 0.000 description 8
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 235000012054 meals Nutrition 0.000 description 3
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000001464 adherent effect Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004449 solid propellant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B1/00—Stoves or ranges
- F24B1/02—Closed stoves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B1/00—Stoves or ranges
- F24B1/18—Stoves with open fires, e.g. fireplaces
- F24B1/191—Component parts; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B1/00—Stoves or ranges
- F24B1/26—Stoves with additional provisions for cooking
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention provides a kind of self-cleaning fire coal cooking and heating furnace of energy-conserving and environment-protective and cooking heating method and purposes, the body of heater top side is provided with chimney, and top furnace wall opens up cooking mouth；Upper lateral in body of heater sets the first diaphragm plate to connect with furnace wall, sets the second diaphragm plate below the first diaphragm plate, and the second diaphragm plate lower section is vertically arranged vertical clapboard and body of heater is divided into the chamber that two bottoms are respectively communicated with, i.e. first chamber and second chamber；Changer lever is set at the top of vertical clapboard；First chamber is identical with the structure of second chamber, the top of first chamber and second chamber is respectively provided with coal filling hole, and bottom is respectively provided with overfiren air port, inclination fire grate is respectively provided with below overfiren air port, primary air nozzle is respectively provided with below fire grate, heating water heat exchanger tube is set in chimney.By setting two burner hearths in left and right inside burner hearth, two burner hearths are used alternatingly the present invention, after the tar for making to deposit during pyrolytic gasification switches in left and right room, are burnt up by high temperature, reach the self-cleaning purpose of burner hearth.
Description
Technical field
The invention belongs to coal-fired combustion equipment field, is related to a kind of coal-fired cooking and heating furnace and cooking heating method and use
On the way, more particularly to a kind of energy-conserving and environment-protective self-cleaning fire coal cooking and heating furnace and cooking heating method and purposes.
Background technology
At present, the family of northern China certain areas, particularly small towns and country residentses, generally using native heating heating,
Due to the design of cooking stove, science, part coal are not unable to completely burned and discharged with cigarette, and utilization rate is low, not only coal consumption amount
Greatly, and serious pollution can be caused to air.Also, in real life, numerous rural subscribers are while heating, it is also desirable to
Stove can use simultaneously and cooking, such as heats up water, cooks and cooking.
At present, domestic stove mainly has two kinds of coal-fired forms on the market：
It is positive to burn stove (Fig. 1 (a))：It is i.e. traditional most simply and most common direct combustion mode, flame during solid fuel ignition
Propagated along heat smoke nature flow direction, combustion intensity is high, and firepower is prosperous, can meet user's cooking demand.The positive stove that burns is applied to nothing
The low fuel of the volatile matters such as bituminous coal.Although just burning stove with good cooking ability, using bituminous coal dispersion coal or using bituminous coal as
Made of raw material during moulded coal, heating of being heated after being added due to fire coal, Volatile, discharged immediately with flue gas, volatile matter is difficult to
After-flame, cause a large amount of black smokes (tar, CO, VOC, sulphur and nitrogen oxide etc.) and people's smell of choking to be emerged, seriously pollute environment.
Reverse burning furnace (Fig. 1 (b))：I.e. solid fuel ignition when flame backheating flue gas nature flow direction propagate burning side
Formula, there is the characteristics of delaying Volatile speed, furnace temperature is high, burning is abundant, black smoke can be substantially eliminated, suitable for bituminous coal etc.
The high fuel of volatile matter.Because counter combust more use more backhaul designs firepower is weaker, therefore its is unsuitable to improve after-flame degree
For cooking, it can only warm oneself, it is difficult to which by part, common people receive；Simultaneously because planning whole burner hearth is in oxygen-enriched high-temp combustion,
Discharged nitrous oxides concentration is higher.
For problem present in conventional oven, people work out the civil that can be applied to cooking and heating simultaneously
Stove-gasification furnace (such as CN 201212696Y and CN 201555250U), but have that stove combustion period is strong, load is not easy
Regulation, the defects of fire-sealing time is short and coal consumption is big.It can be brought rapidly up after coal, and volatile matter quickly separates out, and cause a large amount of
Sulphur and nitrogen oxides drastically separate out.
Fractional combustion stove is developed based on fractional combustion theory, using caused by the coke of coal itself and burning
CO makes caused NO during the gasification of this coal pyrolysis and coal-char combustionxIt is reduced to N2, make that uniquely there is this category feature both at home and abroad
Low nitrogen coal stove.
The existing conventional stove theoretical based on fractional combustion is mostly reverse burning furnace, as shown in Fig. 2 essential when carrying out cooking
On still fall within it is positive burn stove, different from traditional positive burning stove, for the volatile matter that it separates out fire coal before being discharged with flue gas, process is secondary
Wind burns, and reduces blackness of the exhaust.
However, although the existing stove theoretical based on fractional combustion is with excellent smoke effect, its carbonization-half
The fractional combustion mode of burnt burning-Secondary Air after-flame, can cause the generation of a large amount of tar.These tar carbonization area due to
Temperature is low, is condensed into liquid, attaches at the position such as inboard wall of burner hearth, coal filling hole inside, tar attaches for a long time not only to be influenceed outside stove
See, and influence water jacket heat transfer effect, make coal-fired adherent flowing, the normal use of stove may be influenceed when serious.
The content of the invention
For a large amount of tar generations existing for existing cooking and heating furnace, and then stove outward appearance is influenceed, influence water jacket heat exchange effect
Fruit, make coal-fired adherent flowing, the problems such as influenceing the normal use of stove, the invention provides a kind of self-cleaning of energy-conserving and environment-protective
Coal-fired cooking and heating furnace and cooking heating method and purposes.The present invention inside burner hearth by setting two burner hearths in left and right, left and right
Two burner hearths are used alternatingly, and after the tar for making to deposit during pyrolytic gasification switches in left and right room, are burnt up by high temperature, reach burner hearth
Self-cleaning purpose.
To use following technical scheme up to this purpose, the present invention：
In a first aspect, the invention provides a kind of self-cleaning fire coal cooking and heating furnace, the coal-fired cooking and heating furnace stove
Body top side is provided with chimney, and furnace wall opens up cooking mouth at the top of the coal-fired cooking heating furnace body；The coal-fired cooking heating
Upper lateral in furnace body sets the first diaphragm plate that one end connects with furnace wall, and the other end of first diaphragm plate, which is set, cooks a meal
Thing heating changeover module, first diaphragm plate open up burner in cooking, set below the first diaphragm plate both ends with furnace wall phase
The second diaphragm plate connect, the second diaphragm plate middle part perforate, the second diaphragm plate lower section are vertically arranged vertical clapboard by second
Body of heater below diaphragm plate is divided into the chamber that two bottoms are respectively communicated with, i.e. first chamber and second chamber；The vertical clapboard top
Portion sets changer lever, to switch first chamber and second chamber and the connection of perforate in the middle part of the second diaphragm plate；The first chamber
Identical with the structure of second chamber, the top of first chamber and second chamber is respectively provided with coal filling hole, and bottom is respectively provided with overfiren air port,
Inclination fire grate is respectively provided with below the overfiren air port of first chamber and second chamber, First air is respectively provided with below the fire grate
Mouthful, heating water heat exchanger tube is set in the chimney.
In the present invention, the first chamber and second chamber are only the name to two chambers, are not used for
The restriction of order.
In the present invention, it is not connected at the top of the vertical clapboard with the second diaphragm plate, to set changer lever at the top of vertical clapboard,
One end that the changer lever does not connect with vertical clapboard is in handoff procedure, the side edge with burner in cooking, adds to cut off
The side cavity of coal one and the connection of burner in cooking, make to connect as burner in the chamber of flow of flue gas chamber and cooking, so operation
Being used alternatingly for two chambers in burner hearth can be realized.
In the present invention, alternately switching uses for the first chamber and second chamber, i.e., when from first chamber side coal,
When the carbonization of fire coal is carried out in first chamber, tar, volatile matter and semicoke flow downward under entrance caused by carbonization
Oxygen-enriched combusting area below vertical clapboard, the flue gas after burning enter second chamber, second chamber as smoke combustion flow cavity, with
Just flue gas flows to cooking mouth from second chamber and carries out cooking；When from second chamber side coal, progress is coal-fired in second chamber
Carbonization when, tar, volatile matter and semicoke caused by carbonization flow downward into the oxygen-enriched combustion below lower vertical clapboard
Area is burnt, the flue gas after burning enters first chamber, and first chamber is as smoke combustion flow cavity, so that flue gas is from first chamber stream
Cooking is carried out to cooking mouth.So that being produced in carbonization from tar, consumed, entered by burning after chamber switching
And realize the automatically cleaning of burner hearth.
The first chamber and second chamber share coal-char combustion area, share cooking platform, share heating heat-exchange water pipe etc..
In the present invention, caused flue gas flows into chimney while carries out heating and reached with the heating of water heat exchanger tube during cooking
To the effect of heating.
Currently preferred technical scheme is used as below, but not as the limitation of technical scheme provided by the invention, is passed through
Following technical scheme, it can preferably reach and realize the technical purpose and beneficial effect of the present invention.
As currently preferred technical scheme, the vertical clapboard is vertical along the coal-fired cooking heating furnace body axis
Set.
Preferably, the fire grate in the first chamber and second chamber is set along axis mirror image.
As currently preferred technical scheme, movable cover plate, the width of the movable cover plate are set in the cooking on burner
Degree is more than or equal to the width of burner in cooking.
As currently preferred technical scheme, venturi conduit is respectively provided with the first chamber and second chamber.
Preferably, tertiary air orifice is set around trunnion at the trunnion of the venturi conduit.
Preferably, the number ＞ of the tertiary air orifice 1, such as 2,3,4,5 or 6 etc., but simultaneously not only limit
It is equally applicable in other unrequited numerical value in cited numerical value, the number range.
Preferably, the furnace wall of the coal-fired cooking heating furnace body both sides is provided with the burnout degree connected with tertiary air orifice
Mouthful.
As currently preferred technical scheme, the fire grate is provided with wind distributing hole.
Second aspect, the invention provides the cooking heating method of above-mentioned self-cleaning fire coal cooking and heating furnace, the side
Method comprises the following steps：
(a) changer lever is adjusted, the connection of perforate in the middle part of first chamber and the second diaphragm plate is cut off, makes second chamber and second
Perforate connection in the middle part of diaphragm plate；Fire coal is added in coal-fired cooking and heating furnace by the coal filling hole of first chamber, in first chamber
Middle carry out pyrolytic gasification, produce tar, volatile matter and semicoke；
(b) tar, volatile matter and semicoke flow downward caused by step (a), are passed through with the primary air nozzle below first chamber
The air contact that fire grate introduces, tar, volatile matter, semicoke and air contact is set to burn；
(c) caused flue gas and the Secondary Air of second chamber after step (b) volatile matter, semicoke and air contact burning
The air contact that mouth introduces carries out an after-flame, and the flue gas in afterburnt carries out cooking heating operation；
(d) after tar is deposited in first chamber, changer lever is adjusted, cuts off and is opened in the middle part of second chamber and the second diaphragm plate
The connection in hole, first chamber is set to be connected with perforate in the middle part of the second diaphragm plate；Fire coal is added into combustion by the coal filling hole of second chamber
In coal cooking and heating furnace, pyrolytic gasification is carried out in second chamber, produces tar, volatile matter and semicoke；
(e) tar, volatile matter and semicoke flow downward caused by step (d), are passed through with the primary air nozzle below second chamber
The air contact that fire grate introduces, tar, volatile matter, semicoke and air contact is set to burn；
(f) caused flue gas and the Secondary Air of first chamber after step (e) volatile matter, semicoke and air contact burning
The air contact that mouth introduces carries out an after-flame, and the flue gas in afterburnt carries out cooking heating operation；
(g) above-mentioned (a)~(f) processes are repeated, carry out cooking heating.
More specifically, when being respectively provided with venturi conduit in the first chamber and second chamber, the operation of step (c)
Process is：Caused flue gas and the overfiren air port of second chamber draw after step (b) volatile matter, semicoke and air contact burning
The air contact entered carries out an after-flame, and uncombusted flue gas enters the air contact that venturi conduit introduces with tertiary air orifice and entered
The secondary after-flame burning of row, the flue gas in secondary afterburnt carry out cooking heating operation；
The operating process of step (f) is：Caused flue gas after step (d) volatile matter, semicoke and air contact burning
The air contact introduced with the overfiren air port of first chamber carries out an after-flame, and uncombusted flue gas enters venturi conduit and three
The air contact that secondary air port introduces carries out secondary after-flame burning, and the flue gas in secondary afterburnt carries out cooking heating operation.
In the present invention, pyrolytic gasification is oxygen deprivation pyrolytic gasification described in step (a) and step (d)；Step (b) and step
Suddenly the burning of tar in (e), volatile matter, semicoke and air contact is oxygen-enriched combusting.
As currently preferred technical scheme, the flue gas in the afterburnt carries out cooking heating operation and is specially：
When coal-fired cooking and heating furnace carries out cooking, movable cover plate is adjusted, burner in cooking is in opening, simultaneously
Regulation cooking heating changeover module makes it connect with the second diaphragm plate, and barrier flue gas enters in chimney, the flue gas flow direction in afterburnt
Cooking mouth drives flame to carry out cooking；When coal-fired cooking and heating furnace carries out heating, movable cover plate is adjusted, makes jet-burner in cooking
In closure state, while adjusting cooking heating changeover module makes it be disconnected with the second diaphragm plate, makes the flue gas stream in afterburnt
To chimney, flame is driven to carry out the heating of heating water.
As currently preferred technical scheme, described in step (a) and (d) it is coal-fired independently be bituminous coal, anthracite,
Any one in semi-coke or clean moulded coal or at least two combination, the combination is typical but non-limiting examples have：Bituminous coal and
The combination of the combination of anthracitic combination, anthracite and semi-coke, semi-coke and clean moulded coal, the combination of bituminous coal, anthracite and semi-coke,
Combination of anthracite, semi-coke and clean moulded coal etc., it is not limited to listed fire coal.
Preferably, the clean moulded coal is the clean moulded coal prepared by bituminous coal；
Preferably, the clean moulded coal is the clean moulded coal prepared by bituminous coal containing solid grey agent, sulphur-fixing agent and denitrfying agent.
As currently preferred technical scheme, oxygen content is only during step (a) and step (d) pyrolytic gasification
It is on the spot 0%~5%, such as 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5% or 5%
Deng, it is not limited to cited numerical value, in the number range, other unrequited numerical value are equally applicable, elect 0% as~
3%.Herein, the oxygen content refers to the volume content of oxygen.
Preferably, the temperature of step (a) and step (d) pyrolytic gasification independently is 300 DEG C~700 DEG C, such as
300 DEG C, 350 DEG C, 400 DEG C, 450 DEG C, 500 DEG C, 550 DEG C, 600 DEG C, 650 DEG C or 700 DEG C etc., it is not limited to cited
Numerical value, other interior unrequited numerical value of the number range are equally applicable.
The third aspect, the invention provides the purposes of above-mentioned self-cleaning fire coal cooking and heating furnace, it is characterised in that described
Coal-fired cooking and heating furnace is used for domestic cooking and field of heating.
Compared with prior art, the invention has the advantages that：
The present invention sets two burner hearths in left and right, left and right two by being improved to coal-burning stove for heating furnace body inside burner hearth
Individual burner hearth is used alternatingly, and makes in tar caused by carbonization, is consumed after chamber switching by high-temperature oxygen-enriched burning,
And then realize the automatically cleaning of burner hearth；Meanwhile the coal heating stove can meet the optimal requirement of fired coal combustion, lower nitrogen oxidation
Thing generates, and coal-fired burn-off rate is more than 98%, does not smolder, and CO discharge capacitys are less than 2000ppm, realizes under full working scope (coal, row
Slag, cooking, heating, banking etc.) stabilization smokeless combustion.
Brief description of the drawings
Fig. 1 (a) is traditional positive burning stove burning schematic diagram；
Fig. 1 (b) is traditional reverse burning furnace burning schematic diagram；
Fig. 2 is the structural representation of existing conventional coal-fired cooking and heating furnace；
Fig. 3 is the structural representation of self-cleaning fire coal cooking and heating furnace described in the embodiment of the present invention 1；
Fig. 4 is that self-cleaning fire coal cooking and heating furnace described in the embodiment of the present invention 1 carries out flow of flue gas schematic diagram during cooking；
Fig. 5 is that self-cleaning fire coal cooking and heating furnace described in the embodiment of the present invention 1 carries out flow of flue gas schematic diagram during heating；
Fig. 6 is the structural representation of self-cleaning fire coal cooking and heating furnace described in the embodiment of the present invention 2；
Wherein, 1- chimneys, 2- cooking mouths, the diaphragm plates of 3- first, 4- cooking heating changeover modules, burner in 5- cooking, 6-
Second diaphragm plate, 7- vertical clapboards, 8- first chambers, 9- second chambers, 10- changer levers, 11- coal filling holes, 12- overfiren air ports, 13-
Fire grate, 14- primary air nozzles, 15- heating water heat exchanger tubes, 16- movable cover plates, 17- venturi conduits, 18- tertiary air orifices,
19- after-flames air port.
Embodiment
For the present invention is better described, technical scheme is readily appreciated, below to the present invention further specifically
It is bright.But following embodiments is only the simple example of the present invention, the scope of the present invention is not represented or limits, this
Invention protection domain is defined by claims.
Specific embodiment of the invention part provides a kind of self-cleaning fire coal cooking and heating furnace and its cooking heating method,
The coal-fired cooking heating furnace body top side is provided with chimney 1, and the coal-fired cooking heating furnace body top furnace wall, which opens up, cooks a meal
Thing mouth 2；Upper lateral in the coal-fired cooking heating furnace body sets the first diaphragm plate 3 that one end connects with furnace wall, and first
The other end of diaphragm plate 3 sets cooking heating changeover module 4, and first diaphragm plate 3 opens up burner 5 in cooking, the first tabula
The lower section of plate 3 sets the second diaphragm plate 6 that both ends connect with furnace wall, the middle part perforate of the second diaphragm plate 6, second tabula
The lower section of plate 6 is vertically arranged vertical clapboard 7 and the body of heater of the lower section of second diaphragm plate 6 is divided into the chamber that two bottoms are respectively communicated with, i.e., and the
One chamber 8 and second chamber 9；The top of the vertical clapboard 7 sets changer lever 10, to switch first chamber 8 and second chamber 9 and the
The connection of the middle part perforate of two diaphragm plate 6；The first chamber 8 is identical with the structure of second chamber 9, the chamber of first chamber 6 and second
The top of room 7 is respectively provided with coal filling hole 11, and bottom is respectively provided with the overfiren air port 12 of overfiren air port 12, first chamber 8 and second chamber 9
Lower section, which is respectively provided with, tilts fire grate 13, and the lower section of fire grate 13 is respectively provided with primary air nozzle 14, sets heating to use in the chimney 1
Water heat exchanger tube 15.
The cooking heating method comprises the following steps：
(a) changer lever 10 is adjusted, the connection of the middle part perforate of 8 and second diaphragm plate of cut-out first chamber 6, makes second chamber 9
Connected with the middle part perforate of the second diaphragm plate 6；Fire coal is added in coal-fired cooking and heating furnace by the coal filling hole 11 of first chamber 8,
Pyrolytic gasification is carried out in first chamber 8, produces tar, volatile matter and semicoke；
(b) tar, volatile matter and semicoke flow downward caused by step (a), the primary air nozzle 14 with the lower section of first chamber 8
The air contact introduced through fire grate 13, tar, volatile matter, semicoke and air contact is set to burn；
(c) after step (b) volatile matter, semicoke and air contact burning caused flue gas and second chamber 9 it is secondary
The air contact that air port 12 introduces carries out an after-flame, and the flue gas in afterburnt carries out cooking heating operation；
(d) after deposited tar in first chamber 8, changer lever 10 is adjusted, cuts off the diaphragm plate 6 of second chamber 9 and second
The connection of middle part perforate, first chamber 8 is set to be connected with the middle part perforate of the second diaphragm plate 6；Coal by fire coal by second chamber 9
Mouth 11 is added in coal-fired cooking and heating furnaces, and pyrolytic gasification is carried out in second chamber 9, produces tar, volatile matter and semicoke；
(e) tar, volatile matter and semicoke flow downward caused by step (d), the primary air nozzle 14 with the lower section of second chamber 9
The air contact introduced through fire grate 13, tar, volatile matter, semicoke and air contact is set to burn；
(f) after step (e) volatile matter, semicoke and air contact burning caused flue gas and first chamber 8 it is secondary
The air contact that air port 12 introduces carries out an after-flame, and the flue gas in afterburnt carries out cooking heating operation；
(g) above-mentioned (a)~(f) processes are repeated, carry out cooking heating.
It is below present invention typical case but non-limiting example：
Embodiment 1：
The embodiments of the invention provide a kind of self-cleaning fire coal cooking and heating furnace and its cooking heating method, such as Fig. 3 institutes
Show, the coal-fired cooking heating furnace body top side is provided with chimney 1, and furnace wall opens up at the top of the coal-fired cooking heating furnace body
Cooking mouth 2；Upper lateral in the coal-fired cooking heating furnace body sets the first diaphragm plate 3 that one end connects with furnace wall, the
The other end of one diaphragm plate 3 sets cooking heating changeover module 4, and first diaphragm plate 3 opens up burner 5 in cooking, and first is horizontal
The lower section of dividing plate 3 sets the second diaphragm plate 6 that both ends connect with furnace wall, and the middle part perforate of the second diaphragm plate 6, described second is horizontal
The lower section of dividing plate 6 is vertically arranged vertical clapboard 7 and the body of heater of the lower section of second diaphragm plate 6 is divided into the chamber that two bottoms are respectively communicated with, i.e.,
First chamber 8 and second chamber 9；The top of the vertical clapboard 7 sets changer lever 10, with switch first chamber 8 and second chamber 9 with
The connection of the middle part perforate of second diaphragm plate 6；The first chamber 8 is identical with the structure of second chamber 9, first chamber 6 and second
The top of chamber 7 is respectively provided with coal filling hole 11, and bottom is respectively provided with the overfiren air port of overfiren air port 12, first chamber 8 and second chamber 9
12 lower sections, which are respectively provided with, tilts fire grate 13, and the lower section of fire grate 13 is respectively provided with primary air nozzle 14, and heating is set in the chimney 1
With water heat exchanger tube 15.
Wherein, the vertical clapboard 7 is vertically arranged along the coal-fired cooking heating furnace body axis, the first chamber 8
Set with the fire grate 13 in second chamber 9 along axis mirror image.
Movable cover plate 16 is set in the cooking on burner 5, the width of the movable cover plate 16 is more than or equal to burner 5 in cooking
Width.
Cooking heating is carried out using the clean moulded coal prepared by bituminous coal, the cooking heating method is：
(a) changer lever 10 is adjusted, the connection of the middle part perforate of 8 and second diaphragm plate of cut-out first chamber 6, makes second chamber 9
Connected with the middle part perforate of the second diaphragm plate 6；Fire coal is added in coal-fired cooking and heating furnace by the coal filling hole 11 of first chamber 8,
Pyrolytic gasification is carried out in first chamber 8, produces tar, volatile matter and semicoke；
(b) tar, volatile matter and semicoke flow downward caused by step (a), the primary air nozzle 14 with the lower section of first chamber 6
The air contact introduced through fire grate 13, tar, volatile matter, semicoke and air contact is set to burn；
(c) after step (b) volatile matter, semicoke and air contact burning caused flue gas and second chamber 9 it is secondary
The air contact that air port 12 introduces carries out an after-flame, and the flue gas in afterburnt carries out cooking heating operation；
(d) after deposited tar in first chamber 8, changer lever 10 is adjusted, cuts off the diaphragm plate 6 of second chamber 9 and second
The connection of middle part perforate, first chamber 8 is set to be connected with the middle part perforate of the second diaphragm plate 6；Coal by fire coal by second chamber 9
Mouth 11 is added in coal-fired cooking and heating furnaces, and pyrolytic gasification is carried out in second chamber 9, produces tar, volatile matter and semicoke；
(e) tar, volatile matter and semicoke flow downward caused by step (d), the primary air nozzle 14 with the lower section of second chamber 9
The air contact introduced through fire grate 13, tar, volatile matter, semicoke and air contact is set to burn；
(f) after step (e) volatile matter, semicoke and air contact burning caused flue gas and first chamber 8 it is secondary
The air contact that air port 12 introduces carries out an after-flame, and the flue gas in afterburnt carries out cooking heating operation；
(g) above-mentioned (a)~(f) processes are repeated, carry out cooking heating.
The flue gas in the afterburnt carries out cooking heating operation：
When coal-fired cooking and heating furnace carries out cooking, as shown in figure 4, regulation movable cover plate 16, is in burner 5 in cooking
Opening, while adjusting cooking heating changeover module 4 makes it connect with the second diaphragm plate 6, barrier flue gas enters in chimney 1,
The flue gas flow direction cooking mouth 2 in afterburnt drives flame to carry out cooking；When coal-fired cooking and heating furnace carries out heating, as shown in figure 5,
Movable cover plate 16 is adjusted, burner 5 in cooking is in closure state, while adjust cooking heating changeover module 4 to make itself and second
Diaphragm plate 6 disconnects, and makes the flue gas flow direction chimney 1 in afterburnt, drives flame to carry out the heating of heating water.
A large amount of tar are not produced in self-cleaning fire coal cooking and heating furnace described in the present embodiment；Coal-fired burn-off rate is more than
98%, do not smolder, CO discharge capacitys are less than 2000ppm, can be achieved steady under full working scope (coal, deslagging, cooking, heating, banking etc.)
Determine smokeless combustion.
Embodiment 2：
A kind of self-cleaning fire coal cooking and heating furnace and its cooking heating method are present embodiments provided, as shown in fig. 6, institute
State coal-fired cooking heating furnace body top side and be provided with chimney 1,
Furnace wall opens up cooking mouth 2 at the top of the coal-fired cooking heating furnace body；In the coal-fired cooking heating furnace body
Upper lateral sets the first diaphragm plate 3 that one end connects with furnace wall, and the other end of the first diaphragm plate 3 sets cooking heating switch groups
Part 4, first diaphragm plate 3 open up burner 5 in cooking, and the lower section of the first diaphragm plate 3 sets second that both ends connect with furnace wall
Diaphragm plate 6, the middle part perforate of the second diaphragm plate 6, the lower section of the second diaphragm plate 6 are vertically arranged vertical clapboard 7 by the second tabula
The body of heater of the lower section of plate 6 is divided into the chamber that two bottoms are respectively communicated with, i.e. first chamber 8 and second chamber 9；The vertical clapboard 7 pushes up
Portion sets changer lever 10, to switch the connection of first chamber 8 and the middle part perforate of 9 and second diaphragm plate of second chamber 6；Described first
Chamber 8 is identical with the structure of second chamber 9, and the top of first chamber 6 and second chamber 7 is respectively provided with coal filling hole 11, and bottom is all provided with
Put overfiren air port 12, the lower section of overfiren air port 12 of first chamber 8 and second chamber 9, which is respectively provided with, tilts fire grate 13, the fire grate
The lower section of son 13 is respectively provided with primary air nozzle 14, and heating water heat exchanger tube 15 is set in the chimney 1.
Wherein, the vertical clapboard 7 is vertically arranged along the coal-fired cooking heating furnace body axis, the first chamber 8
Set with the fire grate 13 in second chamber 9 along axis mirror image；Movable cover plate 16, the shifting are set in the cooking on burner 5
The width of dynamic cover plate 16 is more than or equal to the width of burner 5 in cooking.
Venturi conduit 17 is respectively provided with the first chamber 8 and second chamber 9；It is surround at the trunnion of venturi conduit 17
Trunnion sets tertiary air orifice 18；The number ＞ of the tertiary air orifice 18 1；Set on the furnace wall of coal-fired cooking heating furnace body both sides
There is the after-flame air port 19 connected with tertiary air orifice 18.
Cooking heating is carried out using the clean moulded coal prepared by bituminous coal containing solid grey agent, sulphur-fixing agent and denitrfying agent, it is described
Cooking heating method is：
(a) changer lever 10 is adjusted, the connection of the middle part perforate of 8 and second diaphragm plate of cut-out first chamber 6, makes second chamber 9
Connected with the middle part perforate of the second diaphragm plate 6；Fire coal is added in coal-fired cooking and heating furnace by the coal filling hole 11 of first chamber 8,
Pyrolytic gasification is carried out in first chamber 8, produces tar, volatile matter and semicoke；
(b) tar, volatile matter and semicoke flow downward caused by step (a), the primary air nozzle 14 with the lower section of first chamber 8
The air contact introduced through fire grate 13, tar, volatile matter, semicoke and air contact is set to burn；
(c) after step (b) volatile matter, semicoke and air contact burning caused flue gas and second chamber 9 it is secondary
The air contact that air port 12 introduces carries out an after-flame, and uncombusted flue gas introduces into venturi conduit 15 with tertiary air orifice 18
Air contact carry out secondary after-flame burning, the flue gas in secondary afterburnt carries out cooking heating operation；
(d) after deposited tar in first chamber 8, changer lever 10 is adjusted, cuts off the diaphragm plate 6 of second chamber 9 and second
The connection of middle part perforate, first chamber 8 is set to be connected with the middle part perforate of the second diaphragm plate 6；Coal by fire coal by second chamber 9
Mouth 11 is added in coal-fired cooking and heating furnaces, and pyrolytic gasification is carried out in second chamber 9, produces tar, volatile matter and semicoke；
(e) tar, volatile matter and semicoke flow downward caused by step (d), the primary air nozzle 14 with the lower section of second chamber 7
The air contact introduced through fire grate 13, tar, volatile matter, semicoke and air contact is set to burn；
(f) after step (e) volatile matter, semicoke and air contact burning caused flue gas and first chamber 8 it is secondary
The air contact that air port 12 introduces carries out an after-flame, and uncombusted flue gas introduces into venturi conduit 17 with tertiary air orifice 18
Air contact carry out secondary after-flame burning, the flue gas in secondary afterburnt carries out cooking heating operation；
(g) above-mentioned (a)~(f) processes are repeated, carry out cooking heating.
The flue gas in the afterburnt carries out cooking heating operation：
When coal-fired cooking and heating furnace carries out cooking, movable cover plate 16 is adjusted, burner 5 in cooking is in opening,
Adjusting cooking heating changeover module 4 simultaneously makes it connect with the second diaphragm plate 6, and barrier flue gas enters in chimney 1, the cigarette in afterburnt
Air-flow drives flame to carry out cooking to cooking mouth 2；When coal-fired cooking and heating furnace carries out heating, movable cover plate 16 is adjusted, makes to cook a meal
Burner 5 is in closure state in thing, while adjusting cooking heating changeover module 4 makes it be disconnected with the second diaphragm plate 6, makes combustion
Flue gas flow direction chimney (1) after to the greatest extent, flame is driven to carry out the heating of heating water.
A large amount of tar are not produced in self-cleaning fire coal cooking and heating furnace described in the present embodiment；Coal-fired burn-off rate is more than
98%, do not smolder, CO discharge capacitys are less than 2000ppm, can be achieved steady under full working scope (coal, deslagging, cooking, heating, banking etc.)
Determine smokeless combustion.
Comparative example 1：
This comparative example provides a kind of coal-fired cooking and heating furnace and its processing method, the structure of the coal-fired cooking and heating furnace
With reference to structure in embodiment 1, difference is：First chamber 6 is different with the structure of second chamber 7, i.e., described coal-fired cooking heating
Coal filling hole 9 is set in stove only in first chamber 6, overfiren air port 10 is not set in first chamber 6, only sets Secondary Air in second chamber 7
Mouth 10；
The coal-fired cooking and heating furnace adds fire coal, fire coal is in first chamber in processing procedure only from first chamber 6
Pyrolytic gasification is carried out in 6, caused tar, volatile matter and semicoke flow downward, the sky introduced with primary air nozzle 12 through fire grate 9
Gas contacts, and tar, volatile matter, semicoke and air contact is carried out oxygen-enriched combusting, after burning in caused flue gas and second chamber 7
The air contact that overfiren air port 10 introduces carries out an after-flame, and the flue gas in afterburnt carries out cooking heating operation.
Tar meeting continuous deposition caused by this comparative example, long-time tar deposits can influence to burn in stove, heat transfer, also have beautiful
See, environment etc..Also, when tar deposition is serious, coal burn-off rate can be caused low, burn-off rate is less than 90%, CO concentration of emissions
Height, CO discharges are more than 5000~10000ppm, have tar in flue gas, cause flue to stain, not only influence environment, it is also desirable to constantly
Cleaning.
Summary embodiment and comparative example can be seen that the present invention by being improved to coal-burning stove for heating furnace body,
Two burner hearths in left and right are set inside burner hearth, and the burner hearth of left and right two is used alternatingly, and makes to produce from tar in carbonization, in chamber
Consumed after switching by high-temperature oxygen-enriched burning, and then realize the automatically cleaning of burner hearth；Meanwhile the coal heating stove can expire
The optimal requirement of sufficient fired coal combustion, lower NO_x formation, coal-fired burn-off rate is more than 98%, do not smolder, CO discharge capacitys are low
In 2000ppm, (coal, deslagging, cooking, heating, banking etc.) stable smokeless combustion is realized under full working scope.
Applicant states that the present invention illustrates the detailed process equipment of the present invention and technological process by above-described embodiment,
But the invention is not limited in above-mentioned detailed process equipment and technological process, that is, it is above-mentioned detailed not mean that the present invention has to rely on
Process equipment and technological process could be implemented.Person of ordinary skill in the field it will be clearly understood that any improvement in the present invention,
The addition of equivalence replacement and auxiliary element to each raw material of product of the present invention, selection of concrete mode etc., all fall within the present invention's
Within the scope of protection domain and disclosure.
Claims (10)
1. a kind of self-cleaning fire coal cooking and heating furnace, it is characterised in that the coal-fired cooking heating furnace body top side is set
There is chimney (1), the coal-fired cooking heating furnace body top furnace wall opens up cooking mouth (2)；The coal-fired cooking heating furnace body
Interior upper lateral sets the first diaphragm plate (3) that one end connects with furnace wall, and the other end of the first diaphragm plate (3) sets cooking to adopt
Warm changeover module (4), first diaphragm plate (3) open up burner in cooking (5), set both ends equal below the first diaphragm plate (3)
The second diaphragm plate (6) to connect with furnace wall, the second diaphragm plate (6) middle part perforate, the second diaphragm plate (6) lower section are vertical
Set vertical clapboard (7) that the body of heater below the second diaphragm plate (6) is divided into the chamber that two bottoms are respectively communicated with, i.e. first chamber
And second chamber (9) (8)；Changer lever (10) is set at the top of the vertical clapboard (7), to switch first chamber (8) and second chamber
(9) with the second diaphragm plate (6) in the middle part of perforate connection；The first chamber (8) is identical with the structure of second chamber (9), and first
The top of chamber (8) and second chamber (9) is respectively provided with coal filling hole (11), and bottom is respectively provided with overfiren air port (12), first chamber (8)
Fire grate (13) is tilted with being respectively provided with below the overfiren air port (12) of second chamber (9), is respectively provided with below the fire grate (13)
Primary air nozzle (14), the chimney (1) is interior to set heating with water heat exchanger tube (15).
2. self-cleaning fire coal cooking and heating furnace according to claim 1, it is characterised in that the vertical clapboard (7) is along institute
Coal-fired cooking heating furnace body axis is stated to be vertically arranged；
Preferably, the fire grate (13) in the first chamber (8) and second chamber (9) is set along axis mirror image.
3. self-cleaning fire coal cooking and heating furnace according to claim 1 or 2, it is characterised in that burner in the cooking
(5) movable cover plate (16) is set on, the width of the movable cover plate (16) is more than or equal to the width of burner (5) in cooking.
4. the self-cleaning fire coal cooking and heating furnace according to claim any one of 1-3, it is characterised in that first chamber
Venturi conduit (17) is respectively provided with room (8) and second chamber (9)；
Preferably, tertiary air orifice (18) is set around trunnion at the trunnion of the venturi conduit (17)；
Preferably, the number ＞ 1 of the tertiary air orifice (18)；
Preferably, the furnace wall of the coal-fired cooking heating furnace body both sides is provided with the after-flame air port connected with tertiary air orifice (18)
(19)。
5. the self-cleaning fire coal cooking and heating furnace according to claim any one of 1-4, it is characterised in that the fire grate
(13) it is provided with wind distributing hole.
6. a kind of cooking heating method of self-cleaning fire coal cooking and heating furnace as described in claim any one of 1-5, it is special
Sign is, the described method comprises the following steps：
(a) connection of changer lever (10), cut-out first chamber (8) and the second diaphragm plate (6) middle part perforate is adjusted, makes second chamber
(9) connected with perforate in the middle part of the second diaphragm plate (6)；Fire coal is added into coal-fired cooking by the coal filling hole (11) of first chamber (8)
In heating stove, pyrolytic gasification is carried out in first chamber (8), produces tar, volatile matter and semicoke；
(b) tar, volatile matter and semicoke flow downward caused by step (a), with the primary air nozzle (14) below first chamber (8)
The air contact introduced through fire grate (13), tar, volatile matter, semicoke and air contact is set to burn；
(c) caused flue gas and the Secondary Air of second chamber (9) after step (b) volatile matter, semicoke and air contact burning
The air contact that mouth (12) introduces carries out an after-flame, and the flue gas in afterburnt carries out cooking heating operation；
(d) after deposited tar in first chamber (8), changer lever (10), cut-out second chamber (9) and the second diaphragm plate are adjusted
(6) connection of middle part perforate, first chamber (8) is made to be connected with perforate in the middle part of the second diaphragm plate (6)；Fire coal is passed through into second chamber
(9) coal filling hole (11) is added in coal-fired cooking and heating furnace, and pyrolytic gasification is carried out in second chamber (9), produces tar, volatilization
Point and semicoke；
(e) tar, volatile matter and semicoke flow downward caused by step (d), with the primary air nozzle (14) below second chamber (9)
The air contact introduced through fire grate (13), tar, volatile matter, semicoke and air contact is set to burn；
(f) caused flue gas and the Secondary Air of first chamber (8) after step (e) volatile matter, semicoke and air contact burning
The air contact that mouth (12) introduces carries out an after-flame, and the flue gas in afterburnt carries out cooking heating operation；
(g) above-mentioned (a)~(f) processes are repeated, carry out cooking heating.
7. cooking heating method according to claim 6, it is characterised in that the flue gas in the afterburnt carries out cooking heating
Operation is specially：
When coal-fired cooking and heating furnace carries out cooking, movable cover plate (16) is adjusted, burner in cooking (5) is in opening,
Adjusting cooking heating changeover module (4) simultaneously makes it connect with the second diaphragm plate (6), and barrier flue gas enters in chimney (1), after-flame
Flue gas flow direction cooking mouth (2) afterwards drives flame to carry out cooking；When coal-fired cooking and heating furnace carries out heating, movable cover plate is adjusted
(16) burner in cooking (5), is made to be in closure state, while adjust cooking heating changeover module (4) to make itself and the second diaphragm plate
(6) disconnect, make the flue gas flow direction chimney (1) in afterburnt, drive flame to carry out the heating of heating water.
8. the cooking heating method according to claim 6 or 7, it is characterised in that step (a) and fire coal described in (d) are equal
It independently is any one in bituminous coal, anthracite, semi-coke or clean moulded coal or at least two combination；
Preferably, the clean moulded coal is the clean moulded coal prepared by bituminous coal；
Preferably, the clean moulded coal is the clean moulded coal prepared by bituminous coal containing solid grey agent, sulphur-fixing agent and denitrfying agent.
9. according to the cooking heating method described in claim any one of 6-8, it is characterised in that step (a) and step (d) are described
Oxygen content independently is 0%~5% during pyrolytic gasification；
Preferably, step (a) and the temperature of step (d) pyrolytic gasification independently are 300 DEG C~700 DEG C.
A kind of 10. purposes of self-cleaning fire coal cooking and heating furnace as described in claim any one of 1-5, it is characterised in that
The coal-fired cooking and heating furnace is used for domestic cooking and field of heating.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823258.5A CN107448976A (en) | 2017-09-13 | 2017-09-13 | The self-cleaning fire coal cooking and heating furnace and cooking heating method and purposes of a kind of energy-conserving and environment-protective |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823258.5A CN107448976A (en) | 2017-09-13 | 2017-09-13 | The self-cleaning fire coal cooking and heating furnace and cooking heating method and purposes of a kind of energy-conserving and environment-protective |
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| CN107448976A true CN107448976A (en) | 2017-12-08 |
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|---|---|---|---|---|
| US4473059A (en) * | 1981-12-07 | 1984-09-25 | Nason Martin L | Wood burning stove |
| CN102121711A (en) * | 2011-04-01 | 2011-07-13 | 山西正和机械制造有限公司 | Foldback type flue smoke dust purification energy-saving cooking and warming dual-purpose furnace |
| CN104848260A (en) * | 2015-05-27 | 2015-08-19 | 任丘市创新采暖设备有限公司 | Multi-fuel and clean-combustion kitchen-work heating stove |
| CN205208632U (en) * | 2015-12-22 | 2016-05-04 | 天津华能北方热力设备有限公司 | Vertical anthracite heating stove |
| CN205505084U (en) * | 2016-03-09 | 2016-08-24 | 郭学峰 | Double mode environmental protection gasification cooking heating dual -purpose stove |
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2017
- 2017-09-13 CN CN201710823258.5A patent/CN107448976A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4473059A (en) * | 1981-12-07 | 1984-09-25 | Nason Martin L | Wood burning stove |
| CN102121711A (en) * | 2011-04-01 | 2011-07-13 | 山西正和机械制造有限公司 | Foldback type flue smoke dust purification energy-saving cooking and warming dual-purpose furnace |
| CN104848260A (en) * | 2015-05-27 | 2015-08-19 | 任丘市创新采暖设备有限公司 | Multi-fuel and clean-combustion kitchen-work heating stove |
| CN205208632U (en) * | 2015-12-22 | 2016-05-04 | 天津华能北方热力设备有限公司 | Vertical anthracite heating stove |
| CN205505084U (en) * | 2016-03-09 | 2016-08-24 | 郭学峰 | Double mode environmental protection gasification cooking heating dual -purpose stove |
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