CN107586549A - A kind of heat accumulating type completely cuts off smoke gas pyrolysis stove - Google Patents
A kind of heat accumulating type completely cuts off smoke gas pyrolysis stove Download PDFInfo
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- CN107586549A CN107586549A CN201710931261.9A CN201710931261A CN107586549A CN 107586549 A CN107586549 A CN 107586549A CN 201710931261 A CN201710931261 A CN 201710931261A CN 107586549 A CN107586549 A CN 107586549A
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- heating
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Abstract
The present invention relates to a kind of heat accumulating type to completely cut off smoke gas pyrolysis stove, and it includes feed unit, body of heater, heating unit and discharging unit；Body of heater is closed cavity, provided with charging aperture, discharging opening and pyrolysis oil gas vent, feed unit connection charging aperture, discharging unit connection discharging opening；Heating unit includes zone of heating and the regenerative structure being arranged on the outside of zone of heating；Zone of heating is provided with the cavity of closing, and body of heater is located in the cavity of zone of heating；First breather pipe and the second breather pipe connection switching valve, switching valve connection air hose and fume pipe, regenerative structure also include the cartridge of conveying fuel.The heat accumulating type isolation smoke gas pyrolysis stove of the present invention makes full use of heat storage, has recycled flue gas institute band energy after burning, and equipment investment is few, simple to operate, thoroughly solves the problems, such as that external-heat pyrolysis capacity of furnace loss is serious.
Description
Technical field
The invention belongs to pyrolysis plant technical field, more particularly to a kind of heat accumulating type isolation smoke gas pyrolysis stove.
Background technology
Pyrolysis oven is a kind of important heating furnace, is had in the industries such as metal smelt, Chemical Manufacture and building materials extensively
Application.The part type of furnace therein occupies important ground in the processing of the organic solid wastes such as house refuse, tire and domestic sludge
Position, it is simple, easy to operate that its main advantage includes equipment, and equipment investment is small and the features such as to the strong adaptability of reaction mass.With
Exemplified by revolving burner, revolving burner is broadly divided into inner-heated rotation stove and external-heat revolving burner.Inner-heated rotation stove was due to reacting
Flue gas is fully contacted with material in journey, and it is gradual that the reasons such as secondary pollution are easily produced during the materials such as processing house refuse
Substitution.And for external-heat revolving burner, although avoiding contact of the flue gas with material, because it belongs to indirectly heat,
The energy consumed in production process is higher, and heat loss is very big, and this is just needed to its improve and perfect.
A kind of existing heat storage type pyrolysis stove, it includes four kiln bodies, two kiln liftout storehouses, two vertical preheating chambers, under
Expect chute, shaft cooler and drawing mechanism etc..It passes through the heat accumulating type preheating chamber of left and right two and four kiln bodies so that rotary kiln
Caused fume afterheat, lime finished product waste heat make full use of in calcining, reduce energy consumption.But the consersion unit is maximum
The problem of be exactly that equipment is excessively complicated, be unsuitable for the demand of actual production.
The content of the invention
The invention is intended to propose a kind of heat accumulating type isolation smoke gas pyrolysis stove, flue gas caused by zone of heating burning passes through heat storage
Accumulation of heat is carried out to it, gas converting heat of the heat storage with entering zone of heating, realizes the recycling of fume afterheat afterwards, reduces heat
Solve the energy consumption of stove.
The present invention provides a kind of heat accumulating type isolation smoke gas pyrolysis stove, including feed unit, body of heater, heating unit and goes out material list
Member；
The body of heater is closed cavity, provided with charging aperture, discharging opening and pyrolysis oil gas vent, the feed unit connection
The charging aperture, the discharging unit connect the discharging opening；
The heating unit includes zone of heating and the regenerative structure being arranged on the outside of the zone of heating；
The zone of heating is provided with the cavity of closing, and the body of heater is located in the cavity of the zone of heating；
The regenerative structure includes the first heat storage, the second heat storage, and first heat storage and the second heat storage are all provided with
There is the stomata of insertion, stomata one end of first heat storage connects with the cavity of the zone of heating, the other end and the first ventilation
Pipe connects, and stomata one end of second heat storage connects with the cavity of the zone of heating, and the other end connects with the second breather pipe,
First breather pipe and the second breather pipe connect switching valve, the switching valve connection air hose and fume pipe, the accumulation of heat knot
Structure also includes the cartridge of conveying fuel.
In some embodiments of the present invention, pipeline that first heat storage, the second heat storage connect with the zone of heating
Side wall connect the cartridge.
In another preferable scheme of the invention, first breather pipe, the second breather pipe connect the cartridge.
In some embodiments of the present invention, screw rod is provided with the body of heater.
In some embodiments of the present invention, the heating unit includes regenerative structure described in two groups, adds respectively positioned at described
The relative both sides of thermosphere.
Further, first heat storage and the second heat storage are honeycomb ceramic body.
Further, the material of the honeycomb ceramic body is mullite-Iolite synthetic material.
In some embodiments of the present invention, the feed unit includes hopper and feed screw, and the hopper connects institute
Feed screw is stated, the feed screw connects the charging aperture of the body of heater.
In some embodiments of the present invention, the discharging unit is spiral discharging machine.
In some embodiments of the present invention, in addition to pyrolysis oil gas clean unit, the pyrolysis oil gas clean unit include
It is pyrolyzed oil gas entrance and fuel outlet, the pyrolysis oil of the pyrolysis oil gas vent connection pyrolysis oil gas clean unit of the body of heater
Gas entrance.
Heat accumulating type provided by the invention completely cuts off smoke gas pyrolysis stove, and heat storage is set outside zone of heating, is reclaimed by heat storage
Flue gas institute band energy after burning；After heat storage completes accumulation of heat, the gas with entering zone of heating is exchanged heat, and can be reduced pyrolysis oven and be disappeared
The energy of consumption；Device structure is simple, required small investment；Thoroughly solve that external-heat pyrolysis oven energy consumption is larger, and energy loss is serious
The problem of.
Brief description of the drawings
Fig. 1 is the structural representation of the heat accumulating type isolation smoke gas pyrolysis stove of the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and examples, the embodiment of the present invention is described in more details, so as to energy
The advantages of enough more fully understanding the solution of the present invention and its various aspects.However, specific embodiments described below and implementation
Example is for illustrative purposes only, rather than limitation of the present invention.
Heretofore described " connection ", unless otherwise clear and definite regulation or limit, should broadly understood, can be direct
It is connected or is connected by intermediary.In the description of the invention, it is to be understood that " on ", " under ", " preceding ",
The orientation or position relationship of the instruction such as " rear ", "left", "right" are based on orientation shown in the drawings or position relationship, merely to just
In the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
As shown in figure 1, the embodiment of the present invention provides a kind of heat accumulating type isolation smoke gas pyrolysis stove, including feed unit 1, body of heater
2nd, discharging unit 3 and heating unit.
Feed unit 1 is used to convey material, including hopper 11 and feed screw 12 into body of heater 2.Hopper 11 connects spiral shell
Charger 12 is revolved, material is sent into feed screw 12 by hopper 11, and material is sent into body of heater 2 by feed screw 12 so that material
It is heated in body of heater 2.
Body of heater 2 is closed cavity, is the space that material is pyrolyzed.The body of heater of the present embodiment is rotary kiln, work
Make personnel according to demand, the pyrolysis oven of other forms also can be selected.Body of heater 2 is provided with charging aperture 21, discharging opening 22 and pyrolysis oil gas
Outlet 23, feed screw 12 connect the charging aperture 21 of body of heater.Material is entered the cavity of body of heater by charging aperture 21, in body of heater 2
Heated to be pyrolyzed, the temperature of pyrolysis is 600~900 DEG C, and pyrolysis time is 20~240min (minute), generates solid carbon and heat
Solve oil gas.Solid carbon is discharged by discharging opening 22, and pyrolysis oil gas is discharged by pyrolysis oil gas vent 23.
A kind of preferred embodiment is to set screw rod 24 in the inner chamber of body of heater 2, the rotation of screw rod 24 can be driven in body of heater
Material discharging opening is moved to by charging aperture.The setting of screw rod 24, it may be such that the inwall of material and body of heater 2 is brought into close contact, to keep away
Exempt from material in traditional rotary kiln and produce dust pollution because turning round.By changing the rotary speed of screw rod 24, material is can adjust in stove
Residence time in body 2, the specific residence time of material, determined according to different materials.
Discharging unit 3 is used for the discharging of solid carbon after being pyrolyzed, and the discharging unit 3 of the present embodiment is spiral discharging machine.Body of heater
Discharging opening 22 connect discharging unit 3, solid carbon is delivered to other storage facilities by spiral discharging machine.
Heating unit is the heating arrangement of body of heater 2, including zone of heating 4 and the regenerative structure 5 that is arranged on the outside of zone of heating.Add
Thermosphere 4 burn caused by flue gas discharged by regenerative structure 5, the fuel needed for zone of heating 4 is entered by regenerative structure 5.
Zone of heating 4 is the cavity of closing, and body of heater 2 is located in the cavity of zone of heating 4, and fuel burns to stove in zone of heating 4
Body 2 is heated.Feed unit 1 and discharging unit 3 are supported through zone of heating 4 to body of heater 2.Feed screw and spiral go out
The shell of material machine and the outer wall of body of heater are connected, and body of heater 2 is played a supporting role.
Regenerative structure 5 includes the first heat storage 51, the second heat storage 52, and the first heat storage 51 and the second heat storage 52 are symmetrical
Set.First heat storage 51 and the second heat storage 52 are equipped with the stomata of insertion, the circulation for gas.First heat storage 51
Stomata one end connects with the cavity of zone of heating 4, and the other end connects with the first breather pipe 53, stomata one end of the second heat storage 52 with
The cavity connection of zone of heating 4, the other end connect with the second breather pipe 54.Regenerative structure 5 also includes switching valve 55, and switching valve 55 is
Four-way valve, four connectors connect the first breather pipe 53, the second breather pipe 54, air hose 56 and fume pipe 57 respectively.Switching valve
55 controllable first breather pipe 53 connection air hoses 56, the second breather pipe 54 connection fume pipe 57；Or first breather pipe 53 connect
Smoke passing air tube 57, the second breather pipe 54 connection air hose 56.So as to realize the accumulation of heat of the first heat storage 51 and the second heat storage 52
And heat release.
Regenerative structure 5 also includes the cartridge 58 of conveying fuel, and in the present embodiment, cartridge 58 connects the first heat storage
51st, the pipeline that the second heat storage 52 connects with zone of heating 4, air are mixed into zone of heating burning in pipeline with fuel.It is another
Kind of embodiment is that cartridge 58 is respectively communicated with the first breather pipe 53 and the second breather pipe 54 so that fuel in breather pipe with
Air mixes.Regulating valve can be set on cartridge 58, to control the air inflow of fuel.
In the present embodiment, the honeycomb ceramic body of the first heat storage 51 and the selection of the second heat storage 52.The material of honeycomb ceramic body
Matter is mullite-Iolite synthetic material, and those skilled in the art can also select other materials according to demand.
In order that the heated of body of heater 2 evenly improves the thermal efficiency of pyrolysis oven, heating unit may include two groups of regenerative structures
5, two groups of regenerative structures 5 are respectively positioned at the relative both sides of zone of heating 4.In the present embodiment, one group of regenerative structure 5 is located at zone of heating 4
Top, another group of regenerative structure 5 be located at the lower section of zone of heating 4.According to the space of production site, two groups of regenerative structures 5 also may be used
It is separately positioned on the left and right sides of zone of heating 4.
The heat accumulating type isolation smoke gas pyrolysis stove of the present embodiment also includes pyrolysis oil gas clean unit (not shown), pyrolysis
Oil gas clean unit can select water washing cleaning equipment, and it includes being pyrolyzed oil gas entrance and fuel outlet, the pyrolysis oil gas of body of heater 2
The pyrolysis oil gas entrance of outlet connection pyrolysis oil gas clean unit.Oil gas caused by pyrolysis can be passed through pyrolysis oil gas clean unit and enter
Row purified treatment, obtain the pyrolysis oil gas of cleaning.Pyrolysis oil gas after processing, can be as the fuel of pyrolysis oven, after can also storing
For other techniques.
The present embodiment pyrolysis oven processing material flow be：
(1) switching valve 55 is adjusted into air hose 56 to connect with the first breather pipe 53, the breather pipe 54 of fume pipe 57 and second
Connection；Material adds from hopper 11, is entered by feed screw 12 in body of heater 2.
(2) air the combustion gas mixing being passed through after the first heat storage 51 with cartridge 58, is mixed by the first breather pipe 53
The cavity burning that gas enters zone of heating 4 is closed, body of heater 2 is heated, the temperature in body of heater is 600~900 DEG C；Caused high temperature
When flue gas is by the second heat storage 52, exchanged heat with the second heat storage 52, be changed into low-temperature flue gas, temperature is less than 150 DEG C, by second
Discharged after breather pipe 54 by fume pipe 57.
(3) after preset time, switching valve 55 is adjusted to air hose 56 and connected with the second breather pipe 54, fume pipe 57
Connected with the first breather pipe 53；Air enters the second heat storage 52 by the second breather pipe 54, enters with combustion gas mixing add afterwards
Thermosphere, fully contacted with it when air is by the second heat storage 52, heating of being heated, realize the secondary use of energy；Burning
Flue gas is discharged by the first heat storage 51, and is the accumulation of heat of the first heat storage 51.
(4) when switching valve 55 switches again, air is entered by the first heat storage 51, and flue gas is by the row of the second heat storage 52
Go out；So repeatedly, the first heat storage 51 and the second heat storage 52 alternate accumulation of heat and heat release, the recovery and two of gas energy is realized
Secondary utilization.
(5) pyrolysis time of the material in body of heater is 20~240min, and the specific reaction time sets according to different material；Thing
Solid carbon and pyrolysis oil gas are generated after material pyrolysis；Solid carbon is discharged by discharging opening by spiral discharging machine；It is pyrolyzed oil gas and enters heat
Solution oil gas clean unit is purified.
Embodiment 1
The present embodiment completely cuts off smoke gas pyrolysis stove at it using domestic waste as raw material, using above-mentioned heat accumulating type
Reason, flow are：
(1) switching valve 55 is adjusted into air hose 56 to connect with the first breather pipe 53, the breather pipe 54 of fume pipe 57 and second
Connection；Material adds from hopper 11, is entered by feed screw 12 in body of heater 2.
(2) air the combustion gas mixing being passed through after the first heat storage 51 with cartridge 58, is mixed by the first breather pipe 53
The cavity burning that gas enters zone of heating 4 is closed, body of heater 2 is heated, the temperature in body of heater is 860 DEG C；Caused high-temperature flue gas
During by the second heat storage 52, exchanged heat with the second heat storage 52, be changed into low-temperature flue gas, temperature is 125 DEG C, by the second breather pipe
Discharged after 54 by fume pipe 57.
(3) after 60s (second), switching valve 55 is adjusted to air hose 56 and connected with the second breather pipe 54, fume pipe 57
Connected with the first breather pipe 53；Air enters the second heat storage 52 by the second breather pipe 54, enters with combustion gas mixing add afterwards
Thermosphere, fully contacted with it when air is by the second heat storage 52, heating of being heated, realize the secondary use of energy；Burning
Flue gas is discharged by the first heat storage 51, and is the accumulation of heat of the first heat storage 51.
(4) when switching valve 55 switches again, air is entered by the first heat storage 51, and flue gas is by the row of the second heat storage 52
Go out；So repeatedly, the first heat storage 51 and the second heat storage 52 alternate accumulation of heat and heat release, the recovery and two of gas energy is realized
Secondary utilization.
(5) pyrolysis time of the material in body of heater is 100min, and solid carbon and pyrolysis oil gas are generated after material pyrolysis；Solid
Charcoal is discharged by discharging opening by spiral discharging machine；Pyrolysis oil gas enters pyrolysis oil gas clean unit and purified.
It should be noted that each embodiment above by reference to described by accompanying drawing only limits this to illustrate rather than
The scope of invention, it will be understood by those within the art that, it is right under the premise without departing from the spirit and scope of the present invention
The modification or equivalent substitution that the present invention is carried out, all should cover within the scope of the present invention.It is in addition, signified unless the context
Outside, the word occurred in the singular includes plural form, and vice versa.In addition, unless stated otherwise, then any embodiment
All or part of can combine any other embodiment all or part of use.
Claims (10)
1. a kind of heat accumulating type completely cuts off smoke gas pyrolysis stove, it is characterised in that including feed unit, body of heater, heating unit and goes out material list
Member；
The body of heater is closed cavity, provided with charging aperture, discharging opening and pyrolysis oil gas vent, described in the feed unit connection
Charging aperture, the discharging unit connect the discharging opening；
The heating unit includes zone of heating and the regenerative structure being arranged on the outside of the zone of heating；
The zone of heating is provided with the cavity of closing, and the body of heater is located in the cavity of the zone of heating；
The regenerative structure includes the first heat storage, the second heat storage, and first heat storage and the second heat storage are equipped with and passed through
Logical stomata, stomata one end of first heat storage connect with the cavity of the zone of heating, and the other end and the first breather pipe connect
Logical, stomata one end of second heat storage connects with the cavity of the zone of heating, and the other end connects with the second breather pipe, described
First breather pipe and the second breather pipe connection switching valve, the switching valve connection air hose and fume pipe, the regenerative structure is also
Cartridge including conveying fuel.
2. heat accumulating type according to claim 1 completely cuts off smoke gas pyrolysis stove, it is characterised in that first heat storage, second
The side wall for the pipeline that heat storage connects with the zone of heating connects the cartridge.
3. heat accumulating type according to claim 1 completely cuts off smoke gas pyrolysis stove, it is characterised in that first breather pipe, second
Breather pipe connects the cartridge.
4. heat accumulating type according to claim 1 completely cuts off smoke gas pyrolysis stove, it is characterised in that is provided with screw rod in the body of heater.
5. heat accumulating type according to claim 1 completely cuts off smoke gas pyrolysis stove, it is characterised in that the heating unit includes two groups
The regenerative structure, respectively positioned at the relative both sides of the zone of heating.
6. heat accumulating type according to claim 1 completely cuts off smoke gas pyrolysis stove, it is characterised in that first heat storage and second
Heat storage is honeycomb ceramic body.
7. heat accumulating type according to claim 6 completely cuts off smoke gas pyrolysis stove, it is characterised in that the material of the honeycomb ceramic body
For mullite-Iolite synthetic material.
8. heat accumulating type according to claim 1 completely cuts off smoke gas pyrolysis stove, it is characterised in that the feed unit includes hopper
And feed screw, the hopper connect the feed screw, the feed screw connects the charging aperture of the body of heater.
9. heat accumulating type according to claim 1 completely cuts off smoke gas pyrolysis stove, it is characterised in that the discharging unit goes out for spiral
Material machine.
10. heat accumulating type according to claim 1 completely cuts off smoke gas pyrolysis stove, it is characterised in that also includes pyrolysis oil gas purification
Unit, the pyrolysis oil gas clean unit include pyrolysis oil gas entrance and fuel outlet, and the pyrolysis oil gas vent of the body of heater connects
Connect the pyrolysis oil gas entrance of the pyrolysis oil gas clean unit.
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| CN201710931261.9A CN107586549A (en) | 2017-10-09 | 2017-10-09 | A kind of heat accumulating type completely cuts off smoke gas pyrolysis stove |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277031A (en) * | 2018-03-19 | 2018-07-13 | 煤炭科学技术研究院有限公司 | Low order pulverized coal pyrolysis device |
| CN109574455A (en) * | 2019-01-24 | 2019-04-05 | 苏州雨苏环境科技有限公司 | A kind of heat accumulating type sludge drying carbonization system |
| CN114958395A (en) * | 2022-06-02 | 2022-08-30 | 江苏运能能源科技有限公司 | Waste heat utilization method and system for biomass carbonization furnace |
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| CN106701128A (en) * | 2016-12-16 | 2017-05-24 | 北京神雾环境能源科技集团股份有限公司 | Regenerative pyrolytic reaction system and method for powdered coal |
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| JP2007046809A (en) * | 2005-08-08 | 2007-02-22 | Idemitsu Kosan Co Ltd | Combustion apparatus and combustion method |
| JP2012082252A (en) * | 2010-10-07 | 2012-04-26 | Cyc:Kk | Carbonizing apparatus |
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| CN108277031A (en) * | 2018-03-19 | 2018-07-13 | 煤炭科学技术研究院有限公司 | Low order pulverized coal pyrolysis device |
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