CN206408164U - The system of vapor garbage drying in a kind of utilization refuse pyrolysis rotary hearth furnace - Google Patents
The system of vapor garbage drying in a kind of utilization refuse pyrolysis rotary hearth furnace Download PDFInfo
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- CN206408164U CN206408164U CN201620689711.9U CN201620689711U CN206408164U CN 206408164 U CN206408164 U CN 206408164U CN 201620689711 U CN201620689711 U CN 201620689711U CN 206408164 U CN206408164 U CN 206408164U
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- Prior art keywords
- rotary hearth
- furnace
- hearth furnace
- dry section
- garbage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The system that the utility model is related to vapor garbage drying in a kind of utilization refuse pyrolysis rotary hearth furnace.System in the utility model includes rotary hearth furnace, blower fan, drying garbage device, the rotary hearth furnace includes annular furnace wall, annular furnace roof, rotatable ring-shaped furnace bottom, wherein, rubbish is placed on rotatable ring-shaped furnace bottom, and rotary hearth furnace upper furnace is provided with indirect radiant tube heating device.The rotary hearth furnace has feed zone, dry section, pyrolysis zone, discharge zone successively, and dry section is provided with rubbish turning device, and baffle plate is provided between feed zone and dry section, and baffle plate is provided between dry section and pyrolysis zone.The high-purity water steam that the utility model can be produced effectively using garbage drying in rotary hearth furnace, realizes the recycling of resource.
Description
Technical field
The utility model is related to solid waste resource recovery process field, more particularly to one kind utilizes refuse pyrolysis rotary hearth furnace
The system of interior vapor garbage drying.
Background technology
With China's rapid development of economy, urbanization process speed is constantly accelerated, and living standards of the people are improved constantly, Gu
The yield of body discarded object, particularly domestic waste is also being continuously increased, and serious pollution is caused to environment.Sustainable
Under the influence of idea of development, solid waste is innoxious, minimizing and the development and application of resource treatment technique and industrialization, will
A wide prospect can be faced.Therefore, solid waste treating technology research turns into after waste water, exhaust-gas treatment research
Another study hotspot.Wherein, solid waste resource recovery processing refers to using management and technological measure from solid waste
Material and the energy are reclaimed, the circulation of matter and energy can be accelerated, certain economic value is created.
Refuse pyrolysis method refers under conditions of anaerobic or anoxic, using the thermal instability of organic matter in garbage, to it
Heating distillation is carried out, organic matter is cracked, the condensed rear various new gases of formation, liquid and solid, then therefrom extract
Fuel oil, combustible gas etc..
It is related to a kind of rotary hearth furnace of radiant tube isolated smoke gas heating in the prior art, rotary hearth furnace is loop configuration, body of heater
It is made up of rotary furnace bottom and fixed furnace wall, furnace roof, furnace bottom is driven by furnace bottom machine to be rotated, and heated bulk material is laid in stove
On bottom, material is rotated with furnace bottom, and is remained static relative to furnace bottom, and the process for going to discharging opening from charging door completes to add
Thermally and chemically react.Some radiation tube heaters are provided with burner hearth, the material in stove is heated with radiation mode.
When carrying out pyrolysis processing to rubbish using above-mentioned rotary hearth furnace, rubbish is rotated in stove with furnace bottom, is gradually heated up heating
Complete dry, pyrolytic process.Accordingly, rotary hearth furnace can be divided into feed zone, dry section, pyrolysis zone, discharge zone.In dry section,
Moisture is evaporated in rubbish, is formed vapor, simultaneously because radiant tube temperature is higher, is had a small amount of rubbish and be pyrolyzed, and is formed
Combustible pyrolysis's gas.Generally, gas-liquid can be sent to together by drying the pyrolysis gas of the vapor formed and refuse pyrolysis formation
Piece-rate system carries out gas-liquid separation, and vapor is condensed into aqueous water.In the process, dry section generation vapor not by
Effectively utilize, and the steam vapour amount is big, about the 30%~50% of rubbish quality, cause greatly waste.
Utility model content
The utility model aims at effective utilization to vapor in refuse pyrolysis rotary hearth furnace, carries out drying garbage.This
Utility model can control the content of combustible gas in the vapor that rotary hearth furnace is generated, it is to avoid the waste of heat in vapor, economy effect
It is beneficial high, it is advantageously implemented industrial applications.
To achieve the above object, vapor garbage drying in refuse pyrolysis rotary hearth furnace is utilized the utility model proposes one kind
System, including rotary hearth furnace, blower fan, drying garbage device；
The rotary hearth furnace includes annular furnace wall, annular furnace roof, rotatable ring-shaped furnace bottom；The rubbish be placed on it is described can
On the ring-shaped furnace bottom of rotation；The rotary hearth furnace upper furnace is provided with radiation tube heater；
The rotary hearth furnace has feed zone, dry section, pyrolysis zone and discharge zone successively；The feed zone and the dry section
Between be provided with baffle plate；Baffle plate is provided between the dry section and the pyrolysis zone；
The dry section has gas outlet；
The blower fan has fan air inlet and blower fan gas outlet；The fan air inlet connects the outlet of the dry section
Mouthful；
The drying garbage device has air inlet, and the air inlet connects the gas outlet of the blower fan；
The drying garbage device has garbage outlet, and the garbage outlet connects the feed zone.
Further, the rotary hearth furnace, drying garbage device, the regional of blower fan are provided with multiple air inlets or outlet
Mouthful.
Further, the blower fan is two or more.
Further, the drying garbage device is roller dryer.
Further, rubbish turning device and Duo Tai pressure instrumentations are provided with the dry section.
Further, temperature instrument and combustible gas composition detection instrument are provided with the gas outlet of the dry section.
Further, the radiation tube heater is indirect radiant tube heating device.
In the utility model, rubbish is dried the mode that rotary hearth furnace uses radiant tube indirectly heat, at pyrolysis
Reason, the pressure in each region of temperature and rotary hearth furnace by controlling radiant tube, and rubbish is overturn, it can be prevented effectively from dry
Refuse pyrolysis generates combustible gas in dry area, so as to ensure the high-purity of vapor produced in rotary hearth furnace, and effectively utilizes the water
Heat in steam, carries out the drying process of rubbish, realizes the effective recycling of the energy.
Brief description of the drawings
Fig. 1 is the system structure diagram in the utility model using vapor garbage drying in refuse pyrolysis rotary hearth furnace.
Fig. 2 is the structural representation of rotary hearth furnace in the utility model.
Fig. 3 is the system flow chart in the utility model using vapor garbage drying in refuse pyrolysis rotary hearth furnace.
Reference in accompanying drawing is as follows：
Ith, rotary hearth furnace；IIth, blower fan；IIIth, drying garbage device；
1st, feed zone；2nd, dry section；3rd, pyrolysis zone；4th, discharge zone；5th, gas outlet；6th, gas outlet；7th, gas outlet.
Embodiment
Below in conjunction with drawings and examples, embodiment of the present utility model is described in more details, with
Just scheme of the present utility model and the advantage of its various aspects be better understood when.However, specific implementations described below
Mode and embodiment are only the purposes of explanation, rather than to limitation of the present utility model.
As shown in figure 1, being the system architecture in the utility model using vapor garbage drying in refuse pyrolysis rotary hearth furnace
Schematic diagram, figure includes rotary hearth furnace I, blower fan II, drying garbage device III.
As shown in Fig. 2 be the structural representation of above-mentioned rotary hearth furnace I, the rotary hearth furnace have successively feed zone 1, dry section 2,
Pyrolysis zone 3, discharge zone 4.
See Fig. 2, above-mentioned dry section 2 has gas outlet 5, and above-mentioned pyrolysis zone 3 has gas outlet 6 and gas outlet 7.
Above-mentioned blower fan II include blower fan 1 and blower fan 2, and all have air inlet and gas outlet, wherein the air inlet of blower fan 1 with
The gas outlet 5 of dry section 2 is connected.
Drying garbage device III has air inlet, and the air inlet is connected with the gas outlet of blower fan 1.
Drying garbage device III has garbage outlet, and the garbage outlet is connected with the feed zone 1 of rotary hearth furnace I.
The body of heater of rotary hearth furnace I includes annular furnace wall, annular furnace roof, rotatable ring-shaped furnace bottom, rubbish be placed on it is described can
On the ring-shaped furnace bottom of rotation.The upper space of the burner hearth of rotary hearth furnace I is provided with radiation tube heater.
It is provided with dry section 2 at rubbish turning device, gas outlet 5 and is provided with temperature instrument and combustible gas into go-on-go
Instrument is surveyed, the gas outlet 5 is connected with the air inlet of blower fan 1, one or more gas outlets in other areas connect with the air inlet of blower fan 2
Connect.
The boundary, dry section 2 and the boundary of pyrolysis zone 3 of dry section 2 and feed zone 1 are both provided with baffle plate and many
The gap between material on pressure instrumentation, the baffle plate and rotatable ring-shaped furnace bottom is the ㎜ of ＜ 100.
The drying garbage device III that the utility model is used is roller dryer.
As shown in figure 3, being the system flow in the utility model using vapor garbage drying in refuse pyrolysis rotary hearth furnace
Figure, comprises the following steps：
A, rubbish pretreatment：Garbage raw material is transported in roller dryer first, using vapor to rubbish therein
Rubbish raw material is dried, and reduces the moisture content of garbage raw material, obtains the rubbish through pre-dried.
B, drying garbage pyrolysis processing：The rubbish through pre-dried is transported to dry section 2 by feed zone 1 first
In, it is placed on rotatable ring-shaped furnace bottom and is dried, produces vapor.Rubbish turning device can be turned over to above-mentioned rubbish
Turn, it is ensured that rubbish is heated evenly, it is to avoid hot-spot causes refuse pyrolysis to generate a large amount of combustible gases, so as to effectively control vapor
The content of middle combustible gas composition.The radiant tube that the processing procedure is set in burner hearth provides heat, uses radiant tube indirect
The mode of radiant heating, also can effectively ensure that the high-purity of vapor.
The boundary of dry section 2 and feed zone 1 is provided with baffle plate and many pressure instrumentations.The wherein effect of baffle plate
It is that the gas for preventing feed zone flows into dry section.Pressure instrumentation is used to detect the pressure near boundary baffle plate, works as detection
When the pressure differential arrived is ＜ 5Pa, by adjusting blower fan 1, the high 5~20Pa of pressure of the pressure ratio feed zone 1 of dry section 2 is maintained.
Dry section 2 and the boundary of pyrolysis zone 3 are provided with baffle plate and many pressure instrumentations.The wherein effect of baffle plate
It is that the combustible gas for preventing pyrolysis zone from producing flows into dry section.Pressure instrumentation is used to detect the pressure near boundary baffle plate,
When the pressure differential detected is ＜ 5Pa, by adjusting blower fan 1 and blower fan 2, the pressure of pyrolysis zone 3 is reduced, dry section 2 is maintained
Pressure ratio pyrolysis zone 3 the high 5~20Pa of pressure.
Temperature instrument is used to detect the temperature of vapor at gas outlet 5, by control the heating efficiency of radiant tube come
Ensure that the temperature of vapor is maintained between 120~400 DEG C.Combustible gas composition detection instrument is used to detect flammable at gas outlet 5
The mass content of gas, when detecting the mass content ＞ 1% of combustible gas in vapor, blower fan 1 is stopped, and makes dry section 2
The gas of interior generation all extracts rotary hearth furnace out by blower fan 2 via other gas outlets beyond gas outlet 5.
C, vapor are recycled：The high-purity water steam that dry section 2 is produced is extracted out by blower fan 1 via gas outlet 5
To drying garbage device III, garbage raw material therein is dried, predrying rear rubbish is obtained, then again by predrying rear rubbish
Rubbish transports to rotary hearth furnace I process proceeded described in step B back.
Embodiment 1
Use moisture content for 45% pretreated rubbish as the garbage raw material in the embodiment, treating capacity is
100t/d (ton day).
Moisture content is transported to roller dryer for 45% garbage raw material first, conveyed into roller dryer
180~230 DEG C of vapor, pre-dried is carried out to rubbish therein, and moisture content is predrying to containing for 45% rubbish
Water rate is 30%, and the consumption of vapor is 20t/d.
Rubbish through pre-dried is transported in dry section by feed zone, the pressure ratio feed zone of maintenance dry section,
It is 120~180 DEG C that pyrolysis zone pressure, which distinguishes steam temperature at high 5Pa, dry section gas outlet,.Vapor is transported by blower fan
Drying garbage processing is carried out into roller dryer.
Embodiment 2
Step be the same as Example 1 in the present embodiment, maintains the pressure ratio feed zone of dry section, pyrolysis zone pressure high respectively
Steam temperature is 180~230 DEG C, other each condition be the same as Examples 1 at 10Pa, dry section gas outlet.
Embodiment 3
Step be the same as Example 1 in the present embodiment, maintains the pressure ratio feed zone of dry section, pyrolysis zone pressure high respectively
Steam temperature is 230~400 DEG C, other each condition be the same as Examples 1 at 20Pa, dry section gas outlet.
Variation
Many variations can also be expanded out based on embodiment of the present utility model and embodiment, for example：
Furnace wall in the body of heater of rotary hearth furnace, furnace roof, rotatable stove bottom can may make up rotary hearth furnace for other in addition to annular
Shape, furnace bottom can use arbitrary rotating manner.
Radiant tube may be provided in the other positions of rotary hearth furnace, but not influence to use in its heating function, or rotary hearth furnace
Other types of mode of heating.
The order of connection of each subregion can not influence the order that rotary hearth furnace works for other in rotary hearth furnace, or the quantity of subregion can
Decrease or increase, any number of air inlet or gas outlet can be set in each region.
Temperature instrument, combustible gas composition detection instrument, baffle plate, pressure instrumentation, the quantity of blower fan are not limited
System.
Drying garbage device can in addition to roller dryer it is other suitable for the rotary hearth furnace work have dry work(
The device of energy.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the utility model example,
And the not restriction to embodiment.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.And thus
Among the obvious changes or variations amplified out is still in protection domain of the present utility model.
Claims (7)
1. the system of vapor garbage drying in a kind of utilization refuse pyrolysis rotary hearth furnace, it is characterised in that including rotary hearth furnace, wind
Machine, drying garbage device, the system garbage raw material can be dried using vapor；
The rotary hearth furnace includes annular furnace wall, annular furnace roof, rotatable ring-shaped furnace bottom；The rubbish is placed on described rotatable
Ring-shaped furnace bottom on；The rotary hearth furnace upper furnace is provided with radiation tube heater；
The rotary hearth furnace has feed zone, dry section, pyrolysis zone and discharge zone successively；Between the feed zone and the dry section
Provided with baffle plate；Baffle plate is provided between the dry section and the pyrolysis zone；
The dry section has gas outlet；
The blower fan has fan air inlet and blower fan gas outlet；The fan air inlet connects the gas outlet of the dry section；
The drying garbage device has air inlet, and the air inlet connects the gas outlet of the blower fan；
The drying garbage device has garbage outlet, and the garbage outlet connects the feed zone.
2. system according to claim 1, it is characterised in that the rotary hearth furnace, drying garbage device, each area of blower fan
Domain is provided with multiple air inlets or gas outlet.
3. system according to claim 1, it is characterised in that the blower fan is two or more.
4. system according to claim 1, it is characterised in that the drying garbage device is roller dryer.
5. system according to claim 1, it is characterised in that pressed in the dry section provided with rubbish turning device and Duo Tai
Tension gauge table.
6. system according to claim 1, it is characterised in that temperature instrument is provided with the gas outlet of the dry section
With combustible gas composition detection instrument.
7. system according to claim 1, it is characterised in that the radiation tube heater fills for radiant tube indirectly heat
Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620689711.9U CN206408164U (en) | 2016-07-01 | 2016-07-01 | The system of vapor garbage drying in a kind of utilization refuse pyrolysis rotary hearth furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620689711.9U CN206408164U (en) | 2016-07-01 | 2016-07-01 | The system of vapor garbage drying in a kind of utilization refuse pyrolysis rotary hearth furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206408164U true CN206408164U (en) | 2017-08-15 |
Family
ID=59548930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620689711.9U Expired - Fee Related CN206408164U (en) | 2016-07-01 | 2016-07-01 | The system of vapor garbage drying in a kind of utilization refuse pyrolysis rotary hearth furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206408164U (en) |
-
2016
- 2016-07-01 CN CN201620689711.9U patent/CN206408164U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: System and method utilizing water steam in garbage pyrolysis rotary hearth furnace to dry garbage Effective date of registration: 20180503 Granted publication date: 20170815 Pledgee: North International Trust Limited by Share Ltd. Pledgor: Shenwu Technology Group Co.,Ltd. Registration number: 2018990000286 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190121 Granted publication date: 20170815 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220921 Granted publication date: 20170815 |
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| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170815 |
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| CF01 | Termination of patent right due to non-payment of annual fee |