CN105969410B - A kind of pyrolysis oven and application - Google Patents
A kind of pyrolysis oven and application Download PDFInfo
- Publication number
- CN105969410B CN105969410B CN201610365514.6A CN201610365514A CN105969410B CN 105969410 B CN105969410 B CN 105969410B CN 201610365514 A CN201610365514 A CN 201610365514A CN 105969410 B CN105969410 B CN 105969410B
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- nozzles
- temperature
- pyrolysis oven
- quirk
- furnace body
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/14—Features of low-temperature carbonising processes
Abstract
The present invention discloses a kind of novel pyrolytic furnace and application, belongs to low temperature pyrogenation applied technical field in low-order coal.Novel pyrolytic furnace of the present invention is using quirk design seperated with furnace body；The quirk includes the closing pipe line of both ends open, and the front of the closing pipe line is equipped with the nozzles with fuel gas inlet, and end is equipped with exhanst gas outlet；The exhanst gas outlet is connected with furnace body, in order to which the flue gas of burning to be passed into the furnace body of the pyrolysis oven.Novel pyrolytic furnace of the invention guarantees that the flue-gas temperature for entering pyrolysis oven combustion chamber is lower than the heat resisting temperature of furnace body manufacture material, so that the stability of furnace body be made not to be affected, can reduce cost to avoid expensive heat-resisting material is used；In addition high-temperature flue gas has obtained sufficient temperature adjustment mixing when entering furnace body, will not generate the high-temperature region of Local Instantaneous, be pyrolyzed more uniform.
Description
Technical field
The present invention relates to low temperature pyrogenation applied technical fields in low-order coal, and in particular to a kind of pyrolysis oven and application.
Background technique
For coal as a kind of fossil energy resource, clean, efficient, comprehensive trans-utilization is following developing direction.With
Poly-generation or step sub-prime based on pyrolysis of coal utilize, and meet clean, efficient, comprehensive trans-utilization principle, are opened by research
The concern of originator, the coal pyrolysis as its main process unit are then got more attention.
Currently, be broadly divided into internal heat type and two kinds of external-heat for the pyrolysis oven of pyrolysis of coal, regardless of be internal heat type or
External-heat is used combustion chamber as quirk, i.e., quirk and furnace body are integrated designs, and the burning of such fuel gas is in furnace
It is carried out in the combustion chamber of body, instantaneous localized hyperthermia is easily generated in burner hearth, causes product quality poor.
Those skilled in the art have been working hard the equipment for seeking a kind of degree of being heated evenly of the raising coal quality in pyrolysis oven
Or method.105295961 A of Chinese patent literature CN discloses a kind of pyrolysis oven and combustion chamber, combustion chamber in the prior art
Two sides are carbonization chamber, have thermally conductive partition wall between carbonization chamber and combustion chamber, the cross section of combustion chamber is fan-shaped, is equipped in combustion chamber
Several the first partition walls being intervally arranged radially and a wedge-shaped wall, so that combustion chamber is divided into several cavities, and increase
The overall stability of combustion chamber is added；The bottom of each cavity is equipped with nozzle, and nozzle is connected to firing tunnel in coking furnace and combustion-supporting gas, although
Relative to the biggish combustion chamber in space, the heating uniformity of each cavity is higher to be also easier to control the prior art, and then can be with
The heat transfer uniformity to carbonization chamber is improved, so that the coal seam in carbonization chamber is uniformly heated, so compared with other prior arts,
Although the prior art makes moderate progress in terms of the intracorporal degree of being heated evenly of furnace in raising coal seam, due in the prior art
It is to be used combustion chamber as quirk, i.e. the design of quirk and furnace body one, therefore fuel gas is in the burning Indoor Combustion of furnace body
When can generate one about 1800 DEG C or so of TRANSIENT HIGH TEMPERATURE area in burner hearth, and general refractory material be unable to satisfy it is so high
Heat resisting temperature, so having to using some expensive heat-resisting materials, so that the cost of furnace body increases；In addition, by
The inhomogeneities that temperature is generated in burner hearth is easy to make the pyrolysis material of carbonization chamber cannot uniformly be pyrolyzed, and reduces the product of product
Matter.
Summary of the invention
The present invention is for the fuel in the design method of the quirk and furnace body one that generally use in existing pyrolytic technique
Gas can result from 1800 DEG C or so an instantaneous high-temperature region in burner hearth when burning in a combustion chamber, and must not use valence
The heat-resisting material of lattice valuableness, so that the cost of furnace body increases；And the inhomogeneities due to generating temperature in burner hearth, it is easy to make
The pyrolysis material of carbonization chamber cannot access uniform pyrolysis, reduce the quality of product, to provide a kind of pyrolysis oven and application.
In order to solve the above technical problems, technical scheme is as follows:
A kind of pyrolysis oven, quirk design seperated with furnace body；
The quirk includes the closing pipe line of both ends open, and the front of the closing pipe line is equipped with the fire with fuel gas inlet
Mouth, end are equipped with exhanst gas outlet；
The exhanst gas outlet is connected with furnace body, in order to which the flue gas of burning to be passed into the furnace body of the pyrolysis oven.
The tune for inputting the temperature adjustment cold air branch pipe of temperature adjustment cold air is equipped between the nozzles and the exhanst gas outlet
Warm cool air inlet.
The nozzles front end has the combustion air inlet connected for inputting the comburent air duct of combustion air, close
The closing pipe line side wall setting of the nozzles front end connects the fuel gas entrance for inputting the fuel gas pipeline of fuel gas,
The nozzles use bushing type, and the inner tube of casing is combustion-aid air pipe, and outside endless tube is fuel gas pipeline.
The tempering air branch pipe be set to quirk mixing section, towards the closing pipe line end and with the closing pipe line
There are angle, pipeline of the quirk mixing section between the nozzles and the exhanst gas outlet, for mixing high-temperature flue gas and adjusting
Warm cold air is to reduce the temperature of high-temperature flue gas.
The tempering air branch pipe is 800~1500mm at a distance from nozzles.
The angle of the tempering air branch pipe and the closing pipe line is 40 °~50 °.
The angle of the tempering air branch pipe and the closing pipe line is 45 °.
There are glory holes on the side wall of the closing pipe line corresponding to the nozzles end, for observing flame
Combustion case.
The end of the nozzles is additionally provided with water conservancy diversion blade.
The application of above-mentioned pyrolysis oven.
The present invention design seperated with furnace body by quirk, so that the high-temperature flue gas that fuel gas burning generates is outside furnace body
It is just tempered suitably stable temperature in quirk, is passed through furnace body again then to realize the pyrolysis to coal, therefore suitable steady
The high-temperature flue gas of fixed temperature will not generate TRANSIENT HIGH TEMPERATURE and the cost of furnace body is caused to increase, and will not reduce the quality of product.
Due to being used combustion chamber as quirk in existing pyrolytic technique, i.e. the design of quirk and furnace body one, so that
Temperature distribution is non-uniform in combustion chamber, there are local instantaneous high temperataure phenomena, to the heat resistance that furnace body builds material require compared with
Height, cost are higher；In addition, being easy to cause the raw coal destructive distillation degree of different parts different due to the inhomogeneities of Temperature Distribution, produce
Product poor quality.
The present invention is by seperated with furnace body by quirk, so that quirk of the high-temperature flue gas of fuel gas burning generation outside furnace body
It is inside just tempered suitably stable temperature, is passed through furnace body again then to realize the pyrolysis to coal, therefore suitably stable
The high-temperature flue gas of temperature will not generate TRANSIENT HIGH TEMPERATURE and the cost of furnace body is caused to increase, and will not reduce the quality of product.
Pyrolysis oven quirk is an important component of pyrolysis oven, design method directly affect pyrolysis furnace technology and its
Cost.Since the ignition temperature of the firing tunnel in coking furnace of pyrolysis oven is about 1800 DEG C or so, due to common refractory material refractory temperature
It is below the ignition temperature, in order to reduce pyrolysis oven cost, without using the refractory material of special expensive, the present invention uses pyrolysis oven
The theory of quirk design seperated with furnace body, makes firing tunnel in coking furnace burn in quirk, and the high-temperature flue gas of generation enters pyrolysis oven burning
Temperature is made to be down to the temperature that pyrolysis oven manufacture material can satisfy by being passed through excessive cold air before, it can by this method
So that common refractory material can meet requirement of the pyrolysis oven to manufacture material, the cost of furnace body is greatly reduced, reduces and throws
Money, while can also solve the problem of that the inhomogeneities that temperature is generated in burner hearth reduces the quality of product.In the present invention, it helps
The air for firing air and temperature adjustment is that a point two-way enters, and designs enable to the burning of fuel gas more stable in this way, be unlikely to by
And flame blow-off too many in air excess, to improve the safety of technique.Glory hole is equipped at the nozzles of quirk, it can
With the combustion case of observation fuel gas at any time.
For quirk by the way of premixed combustion, combustion space needed for which is small, reduces quirk occupied area and space accounts for
With rate.Wherein nozzles use bushing type, and technology maturation and price is low, wherein inner tube is combustion-aid air pipe, and outside endless tube is fuel
Feed channel.
In order to reduce the temperature of combustion product gases, dropped so more cold airs is needed to enter quirk and mix with flue gas
The temperature of low flue gas, existing some technologies are realized by way of increase combustion air excess coefficient, are bound in this way
The inlet velocity that will cause combustion air is very big, is unfavorable for being sufficiently mixed with fuel gas, while burned flame is by combustion-supporting
Air is affected, combustion instability, is easy to extinguish, and the present invention is divided into fire using combustion air and temperature adjustment cold air
The mode in road is in combustion air in nozzles in fuel gas and is mixed and burned, the high-temperature flue gas of generation through quirk run one section away from
It is mixed from rear with temperature adjustment cold air that is entering quirk by branch pipe, reduces temperature, finally enter burner hearth.The design can make to help
Combustion air and fuel gas are burnt with optimal proportion, are made burning more sufficiently with stabilization, are improved the safety of entire technique.
Tempering air branch pipe need to have a distance with nozzles, and have certain angle with quirk, that is, be partial to flow of flue gas
Direction, not only do not influenced or not the burning of fuel gas due to entering for cold air so to the greatest extent, and but also the cold sky of temperature adjustment can have been made
Gas is uniformly mixed faster with high-temperature flue gas.Preferably, tempering air branch pipe and quirk enter in 45° angle, can make to adjust in this way
The air of temperature does not influence the burning of fuel gas to the greatest extent, mixes the flue gas of the cold air entered and high temperature quickly
It is even.
Nozzles end in the present invention is additionally provided with water conservancy diversion blade, so that fuel gas just generates one before contacting with air
The effect prewhirled, so that the mixing more Quick uniform with air, burns more abundant.
It, can observation at any time there are glory hole on the side wall of the closing pipe line corresponding to the nozzles end
The combustion case of flame, it is convenient direct.
The present invention can be improved pyrolysis oven chamber structure, improve the uniformity of hot fume distribution, make in carbonization chamber coal seam by
The uniformity of heat, improves the quality of upgraded coal.
Above-mentioned technical proposal of the invention has the advantage that
(1) pyrolysis oven provided by the invention is moved using outside quirk, design seperated with furnace body, reduce the manufacture of pyrolysis oven at
This.
(2) pyrolysis oven provided by the invention can make the hot fume temperature entered in pyrolysis oven combustion chamber appropriate, burning
Uniformity of temperature profile in room, the phenomenon that not generating localized hyperthermia.
(3) pyrolysis oven provided by the invention, using quirk design seperated with furnace body so as to the control of burning more
Flexible and changeable, operability is stronger.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is pyrolysis oven structural schematic diagram of the present invention；
Fig. 2 is pyrolysis oven quirk top view of the present invention；
Fig. 3 is pyrolysis oven quirk A of the present invention to schematic diagram；
Appended drawing reference indicates in figure are as follows: 1- combustion air inlet, 2- comburent air duct, 3- fuel gas water conservancy diversion blade, 4-
Nozzles, 5- flame observation port, 6- exhanst gas outlet, 7- fuel gas entrance, 8- temperature adjustment cool air inlet, 9- quirk mixing section, 10- furnace
Body.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Pyrolysis oven of the present invention will move outside quirk, separately be designed using quirk with furnace body, fuel gas first burns in quirk, so
Cold air is passed through in quirk afterwards, is mixed with the flue gas of high temperature, makes temperature that common refractory is reduced to can satisfy and wants
Enter burner hearth after asking, the manufacture material of pyrolysis oven can be made common refractory material can be used can to meet by this method and wanted
It asks, greatly reduces the cost of furnace body, reduce investment.
As shown in Figure 1, a kind of pyrolysis oven of the invention, quirk design seperated with furnace body 10；The quirk includes that both ends are opened
The closing pipe line of mouth, the front of the closing pipe line are equipped with the nozzles 4 with fuel gas inlet, and end is equipped with exhanst gas outlet 6；It is described
Exhanst gas outlet 6 is connected with furnace body 10, in order to be passed into the flue gas of burning in the furnace body 10 of the pyrolysis oven.
The temperature adjustment cold air branch pipe for inputting temperature adjustment cold air is equipped between the nozzles 4 and the exhanst gas outlet 6
Temperature adjustment cool air inlet 8.
4 front end of nozzles has the combustion air inlet 1 connected for inputting the comburent air duct 2 of combustion air,
Closing pipe line side wall setting close to 4 front end of nozzles connects the fuel gas for inputting the fuel gas pipeline of fuel gas
Entrance 7, the nozzles 4 use bushing type, and the inner tube of casing is comburent air duct 2, and outside endless tube is fuel gas pipeline.
The tempering air branch pipe be set to quirk mixing section 9, towards the closing pipe line end and with the sealed tube
There are angle, pipeline of the quirk mixing section 9 between the nozzles 4 and the exhanst gas outlet 6, for mixing high-temperature flue gas in road
The temperature of high-temperature flue gas is reduced with temperature adjustment cold air.
In use, fuel gas is entered by fuel gas entrance 7, nozzles 4 are reached through fuel gas pipeline, combustion air is by combustion-supporting sky
Gas entrance 1 enters, and is transported at nozzles 4 through comburent air duct 2, and combustion air and fuel gas are sufficiently mixed combustion at nozzles 4
It burns, the high-temperature flue gas of generation meets with the cold air entered by temperature adjustment cool air inlet 8, is sufficiently mixed by quirk mixing section 9
Enter in the combustion chamber of pyrolysis oven by quirk exhanst gas outlet 6, provides heat for pyrolysis material.And quirk is using premixed combustion
Mode, combustion space needed for which is small, reduces quirk occupied area and space occupancy rate, and wherein nozzles use casing
Formula, technology maturation and price is low.
In order to reduce the temperature of combustion product gases, the present invention is divided into quirk using combustion air and temperature adjustment cold air
Mode is additionally provided with temperature adjustment cool air inlet 8 in quirk mixing section 9, such fuel gas mixes combustion at nozzles 4 with combustion air
Burn, the high-temperature flue gas of generation after quirk runs a distance with enter the temperature adjustment cold air of quirk by temperature adjustment cold air branch pipe
Mixing, reduces temperature, finally enters burner hearth.The design can be such that combustion air and fuel gas is fired with optimal proportion
It burns, makes burning more sufficiently with stabilization, improve the safety of entire technique.
Preferably, tempering air branch pipe and nozzles 4 have a distance in the present invention, and have certain angle with quirk, i.e.,
It is partial to the direction of flow of flue gas, both not influence the burning for entering influence fuel gas due to cold air to the greatest extent in this way,
Temperature adjustment cold air can be made to be uniformly mixed faster with high-temperature flue gas again.
Further preferably tempering air branch pipe and quirk are in 45° angle, the air of temperature adjustment can be made maximum in this way
The burning of fuel gas is not influenced, is uniformly mixed the flue gas of the cold air entered and high temperature quickly.
Preferably, the end of the nozzles 4 in the present invention is additionally provided with refluence blade, so that fuel gas with air before contacting
With regard to generating an effect prewhirled, so that the mixing more Quick uniform with air, burns more abundant.
Preferably, corresponding on the side wall of the closing pipe line of 4 end of nozzles there are glory hole 5, can be with
The combustion case of observation flame at any time, it is convenient direct.
The present invention can be improved pyrolysis oven chamber structure, improve the uniformity of hot fume distribution, make in carbonization chamber coal seam by
The uniformity of heat, improves the quality of upgraded coal.
Fig. 2 is the top view of pyrolysis oven quirk, can intuitively can see combustion by glory hole 5 as shown in Figure 2
Expect the combustion case of gas.
Fig. 3 is A to schematic diagram, and Fig. 3 can be clearly seen that the structural schematic diagram of nozzles.
Claims (7)
1. a kind of pyrolysis oven, which is characterized in that quirk design seperated with furnace body；
The quirk includes the closing pipe line of both ends open, and the front of the closing pipe line is equipped with the nozzles with fuel gas inlet,
End is equipped with exhanst gas outlet；
The exhanst gas outlet is connected with furnace body, in order to which the flue gas of burning to be passed into the furnace body of the pyrolysis oven；
It is equipped between the nozzles and the exhanst gas outlet cold for inputting the temperature adjustment of the temperature adjustment cold air branch pipe of temperature adjustment cold air
Air intake；The nozzles front end has the combustion air inlet connected for inputting the comburent air duct of combustion air, leans on
The closing pipe line side wall setting connection of the nearly nozzles front end enters for inputting the fuel gas of the fuel gas pipeline of fuel gas
Mouthful, the nozzles use bushing type, and the inner tube of casing is combustion-aid air pipe, and outside endless tube is fuel gas pipeline；
The tempering air branch pipe be set to quirk mixing section, towards the closing pipe line end and have folder with the closing pipe line
Angle, pipeline of the quirk mixing section between the nozzles and the exhanst gas outlet are cold with temperature adjustment for mixing high-temperature flue gas
Air is to reduce the temperature of high-temperature flue gas.
2. pyrolysis oven according to claim 1, which is characterized in that the tempering air branch pipe is 800 at a distance from nozzles
~1500mm.
3. pyrolysis oven according to claim 2, which is characterized in that the tempering air branch pipe and the closing pipe line
Angle is 40 °~50 °.
4. pyrolysis oven according to claim 3, which is characterized in that the tempering air branch pipe and the closing pipe line
Angle is 45 °.
5. pyrolysis oven according to claim 4, which is characterized in that the closing pipe line corresponding to the nozzles end
Side wall on there are glory holes, for observing the combustion case of flame.
6. pyrolysis oven according to claim 5, which is characterized in that the nozzles end is additionally provided with water conservancy diversion blade.
7. the application of any pyrolysis oven of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610365514.6A CN105969410B (en) | 2016-05-27 | 2016-05-27 | A kind of pyrolysis oven and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610365514.6A CN105969410B (en) | 2016-05-27 | 2016-05-27 | A kind of pyrolysis oven and application |
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| Publication Number | Publication Date |
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| CN105969410A CN105969410A (en) | 2016-09-28 |
| CN105969410B true CN105969410B (en) | 2019-02-05 |
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ID=56956518
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| CN2214873Y (en) * | 1994-10-08 | 1995-12-13 | 金兆钰 | Thermal cracking recovery plant of waste rubber |
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| CN102796536A (en) * | 2012-08-27 | 2012-11-28 | 张星原 | Double-divided sectional type heating odd horizontal flame path of heat recovery coke oven |
| EP1943463B1 (en) * | 2005-09-21 | 2013-11-06 | Fachhochschule Bingen | Method of generating thermal energy using a burner |
| CN104100978A (en) * | 2014-07-17 | 2014-10-15 | 河南省科学院能源研究所有限公司 | Harmless treatment method for organic pollutants and assorted device of harmless treatment method |
| CN205241601U (en) * | 2015-09-25 | 2016-05-18 | 北京神雾环境能源科技集团股份有限公司 | System for coal rapid pyrolysis |
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2016
- 2016-05-27 CN CN201610365514.6A patent/CN105969410B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2214873Y (en) * | 1994-10-08 | 1995-12-13 | 金兆钰 | Thermal cracking recovery plant of waste rubber |
| EP1943463B1 (en) * | 2005-09-21 | 2013-11-06 | Fachhochschule Bingen | Method of generating thermal energy using a burner |
| CN101315187A (en) * | 2008-06-26 | 2008-12-03 | 天时燃烧设备（苏州）有限责任公司 | Anti-flashback nozzle and combustion device with the same |
| CN102796536A (en) * | 2012-08-27 | 2012-11-28 | 张星原 | Double-divided sectional type heating odd horizontal flame path of heat recovery coke oven |
| CN104100978A (en) * | 2014-07-17 | 2014-10-15 | 河南省科学院能源研究所有限公司 | Harmless treatment method for organic pollutants and assorted device of harmless treatment method |
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| CN105969410A (en) | 2016-09-28 |
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