CN211176825U - Secondary combustion chamber for household garbage flue gas - Google Patents
Secondary combustion chamber for household garbage flue gas Download PDFInfo
- Publication number
- CN211176825U CN211176825U CN201921854109.6U CN201921854109U CN211176825U CN 211176825 U CN211176825 U CN 211176825U CN 201921854109 U CN201921854109 U CN 201921854109U CN 211176825 U CN211176825 U CN 211176825U
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- secondary combustion
- flue gas
- flue
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 64
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000003546 flue gas Substances 0.000 title claims abstract description 35
- 238000004321 preservation Methods 0.000 claims abstract description 14
- 239000002893 slag Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 9
- 239000010791 domestic waste Substances 0.000 abstract description 4
- 239000012774 insulation material Substances 0.000 abstract description 4
- 230000009970 fire resistant effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 5
- 230000008676 import Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 235000009537 plain noodles Nutrition 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
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- Incineration Of Waste (AREA)
Abstract
The utility model discloses a secondary combustion chamber of domestic waste flue gas, including heat preservation sealed cowling flange, preheat the toper cover, heat preservation sealed cowling, fire-resistant insulation material, second combustion chamber cavity, outside casing, furnace gate, stove leg, degree air inlet grate, ash remover, slagging-off machine, hold back flue and porous high temperature heat accumulator, the fixed bottom that sets up outside casing of stove leg, and the lower extreme of stove leg is the pre-buried connecting plate of fixedly connected with respectively, fire-resistant insulation material sets up the top side of outside casing, and bottom one side of outside casing is seted up to the furnace gate, second combustion chamber cavity sets up the inboard at outside casing, and the exhanst gas outlet department of second combustion chamber cavity is venturi throat structure. The utility model discloses guaranteed to get into two combustion chambers flue gas temperature and stabilized at ignition point temperature, the burning is more stable for do not need additionally to add the combustion-supporting during the postcombustion chamber burning, simultaneously, the dust clearance of being convenient for is difficult to the flue and blocks up.
Description
Technical Field
The utility model relates to the technical field of, especially, relate to a postcombustion chamber of domestic waste flue gas.
Background
The secondary combustion chamber is a device for decomposing harmful gas and burning tar at high temperature in the field of incineration and pyrolysis of garbage and sludge, fully decomposes harmful components in incineration and pyrolysis smoke, particularly dioxin harmful substances, through the control of high temperature and residence time, the secondary combustion is an indispensable condition, most working conditions of the secondary combustion of the smoke at present need to add a combustion-supporting device, or the residence time is insufficient, and the secondary combustion technology has a part to be improved and optimized.
In the prior art, when combustible attachments such as carbon monoxide, carbon black, dust, tar and the like which are not completely combusted in a first combustion chamber enter a second combustion chamber, secondary combustion can occur when the temperature of flue gas rises to a certain value and enough oxygen is available for supporting combustion, waste gas generated after general household garbage is combusted enters the second combustion chamber, is completely combusted under the forced combustion of a combustor, enters a rear-end heat exchanger and a bag type dust remover again, and is discharged into the atmosphere through a chimney after dust removal. Combustible attachments and smoke temperature reach ignition temperature, and surplus oxygen are three essential conditions for combustion in the secondary combustion chamber. In the prior art, most secondary combustion chambers are limited by instability of flue gas temperature, and a combustion-supporting device is required to be arranged, so that the operation cost is greatly increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a secondary combustion chamber for domestic garbage flue gas.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a secondary combustion chamber for household garbage flue gas comprises a heat-insulating sealing cover flange, a preheating conical cover, a heat-insulating sealing cover, a fireproof heat-insulating material, a secondary combustion chamber cavity, an outer shell, a furnace door, furnace legs, an air intake grate, a dust remover, a slag remover, a suppressed flue and a porous high-temperature heat accumulator, wherein the furnace legs are fixedly arranged at the bottom of the outer shell, the lower ends of the furnace legs are respectively and fixedly connected with embedded connecting plates, the fireproof heat-insulating material is arranged on the top side of the outer shell, the furnace door is arranged on one side of the bottom of the outer shell, the secondary combustion chamber cavity is arranged on the inner side of the outer shell, a flue gas outlet of the secondary combustion chamber cavity is of a Venturi throat structure, the air intake grate is arranged at the surrounding center of the secondary combustion chamber cavity, the air intake grate adopts a rotary mountain-shaped structure, the cross section of the air intake grate is a square cavity, and the air inlet grate mount of degree is established in the top side of ash basin chassis, and the grate top has reverse group material device, and the ash remover sets up in the bottom of ash basin chassis, and the bottom and the slagging-off machine of ash remover are connected, preheat the conical cover surface and pour by refractory material and form, the internal surface is the steel plain noodles, and the heat preservation sealed cowling is the toper structure, arranges in preheating the conical cover top, and the heat preservation sealed cowling flange sets up the top at the heat preservation sealed cowling, the flue of holding back sets up at the top of combustion chamber cavity, and second combustion chamber cavity upper portion is equipped with the flue gas import, and the flue gas import is the degree partition and arranges in holding back the flue bottom.
Preferably, the bottom of the hold-down flue adopts a flow-blocking air hole flange, and the porous high-temperature heat accumulator is placed on the flange.
Preferably, the preheating conical cover is of a conical structure, six oxygen supplementing openings are uniformly formed in the periphery of the conical cover, and oxygen is provided for secondary combustion.
Preferably, the flue gas inlet of the secondary combustion chamber cavity is provided with a guide plate and an ash blocking disc, and the flue gas enters the secondary combustion chamber cavity in a rotating mode through the rotating blocking flue.
Preferably, the slag remover adopts a water seal structure, and the slag remover adopts wet-method slag removal and lower-return chain type slag removal.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model ensures that the temperature of the flue gas entering the secondary combustion chamber is stabilized at the ignition temperature and the combustion is more stable by arranging the flue, the conical heat accumulator device, the flue gas flow blocking flange and the preheating conical cover in the secondary combustion chamber;
2. the utility model discloses an application in the conical heat accumulator material of postcombustion chamber, hold back the special construction of flue, do not need to add the combustion-supporting additionally when making the postcombustion chamber burn;
3. the utility model discloses the after combustion chamber is spiral revolution mechanic, and the dust is concentrated and is piled up in the export of lower part in the flue gas, and the dust clearance of being convenient for is difficult to the flue and blocks up.
Drawings
FIG. 1 is a schematic view of a sectional structure of a secondary combustion chamber for domestic garbage flue gas according to the present invention;
fig. 2 is a schematic view of the overall structure of the secondary combustion chamber cavity of the secondary combustion chamber for domestic garbage flue gas provided by the utility model;
FIG. 3 is a schematic structural view of a smoke path of a secondary combustion chamber of household garbage flue gas provided by the present invention;
fig. 4 is the utility model provides a structural schematic diagram of 360 degrees air inlet grate of secondary combustion chamber of domestic waste flue gas.
In the figure: the device comprises a heat-insulation sealing cover flange 1, a preheating conical cover 2, a heat-insulation sealing cover 3, a refractory heat-insulation material 4, a secondary chamber cavity 5, an external shell 6, a furnace door 7, furnace legs 8, a pre-embedded connecting plate 9, a 360-degree air inlet furnace grate 10, an ash remover 11, a slag remover 12, a suppressed flue 13, a porous high-temperature heat accumulator 14, an ash basin chassis 15 and a reverse stirring device 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example one
Referring to fig. 1-4, a secondary combustion chamber of domestic waste flue gas, including heat preservation sealed cowling flange 1, preheat conical shroud 2, heat preservation sealed cowling 3, fire-resistant insulation material 4, two combustion chamber cavity 5, outside casing 6, furnace gate 7, stove leg 8, pre-buried connecting plate 9, 360 degrees air inlet grate 10, ash remover 11, slagging-off machine 12, hold back flue 13, porous high temperature heat accumulator 14, heat preservation sealed cowling flange 1 uses bolted connection, and sealed pad uses the cotton material of heat preservation aluminium silicate, can guarantee better leakproofness when heat preservation fire resistance. The preheating conical cover 2 is made of special high-temperature-resistant steel, the outer surface of the preheating conical cover is made of refractory material through pouring, and the inner surface of the preheating conical cover is a smooth steel surface. The heat preservation sealing cover 3 is of a conical structure and is arranged above the preheating conical cover. The refractory heat-insulating material 4 is made of high-temperature-resistant and corrosion-resistant high-aluminum material. The cavity 5 of the secondary combustion chamber is made of special high-temperature-resistant steel materials and has a 360-degree spiral structure, the cross section of the cavity is a square cavity, and the deformation amount is small under the high-temperature condition. 360 degree air inlet grate 10 adopts rotatory chevron structure, and the air-out layer upon layer has guaranteed 360 degrees air inlet grate 10's the difficult too high temperature when guaranteeing furnace air-out homogeneity, and slagging-off machine 12 adopts the water seal structure, and the wet process is slagging tap and has been reduced the temperature of slagging tap and guaranteed the condition that tiny dust can not appear kicking up. The whole of the suppressed flue 13 is made of special high-temperature resistant steel, the bottom of the suppressed flue is provided with a flow-resisting air hole flange, and a porous high-temperature heat accumulator 14 is arranged on the flange, so that the flue gas entering the secondary combustion chamber is ensured to continuously and stably reach the ignition temperature.
The flue gas firstly enters a suppressed flue 13 at the top of a cavity 5 of the secondary combustion chamber, oxygen entering through an oxygen supplementing port of the suppressed flue 13 rapidly spontaneously combusts after entering the cavity 5 of the secondary combustion chamber through high-temperature heat exchange of a porous high-temperature heat accumulator 14 inside the suppressed flue 13, the flue gas after high-temperature combustion is discharged out of the secondary combustion chamber in a rotary cavity of the secondary combustion chamber under the negative pressure action of a rear end draught fan, secondary combustion of the flue gas is completed, and harmful gases in the flue gas are decomposed.
The utility model discloses guaranteed to get into two combustion chambers flue gas temperature and stabilized at ignition point temperature, the burning is more stable for do not need additionally to add the combustion-supporting during the postcombustion chamber burning, simultaneously, the dust clearance of being convenient for is difficult to the flue and blocks up.
Only be the preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, and according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the scope of protection of the present invention.
Claims (5)
1. A secondary combustion chamber for household garbage flue gas comprises a heat-insulating sealing cover flange (1), a preheating conical cover (2), a heat-insulating sealing cover (3), a fireproof heat-insulating material (4), a secondary combustion chamber cavity (5), an external shell (6), a furnace door (7), furnace legs (8), a 360-degree air inlet grate (10), an ash remover (11), a slag remover (12), a suppressed flue (13) and a porous high-temperature heat accumulator (14), and is characterized in that the furnace legs (8) are fixedly arranged at the bottom of the external shell (6), the lower ends of the furnace legs (8) are respectively and fixedly connected with a pre-embedded connecting plate (9), the fireproof heat-insulating material (4) is arranged at the top side of the external shell (6), the furnace door (7) is arranged at one side of the bottom of the external shell (6), the secondary combustion chamber cavity (5) is arranged at the inner side of the external shell (6), and a flue gas outlet of the secondary combustion chamber cavity (5) is of a, the 360-degree air inlet grate (10) is arranged at the surrounding center of the cavity of the secondary combustion chamber (5), the 360-degree air inlet grate (10) adopts a rotary mountain-shaped structure, the cross section of the 360-degree air inlet grate is a square cavity, an ash basin chassis (15) is arranged at the bottom of the inner side of the bottom of the outer shell (6), a fixing frame of the 360-degree air inlet grate (10) is arranged at the top side of the ash basin chassis (15), a reverse stirring device (16) is arranged at the top of the grate, an ash remover (11) is arranged at the bottom of the ash basin chassis (15), the bottom of the ash remover (11) is connected with a slag remover (12), the outer surface of the preheating conical cover (2) is poured by refractory materials, the inner surface is a steel smooth surface, the heat preservation sealing cover (3) is of a conical structure and is arranged above the preheating conical cover (2), a heat preservation sealing cover flange (1) is arranged at the top end of the heat preservation sealing cover (3), and the suppressed flue (13) is, the upper part of the secondary combustion chamber cavity (5) is provided with a flue gas inlet which is arranged at the bottom of the hold-back flue (13) in 360-degree equal distribution.
2. The secondary combustion chamber for the flue gas of the household garbage according to claim 1, characterized in that: the bottom of the hold-back flue (13) adopts a flow-resisting air hole flange, and a porous high-temperature heat accumulator (14) is placed on the flange.
3. The secondary combustion chamber for the flue gas of the household garbage according to claim 1, characterized in that: the preheating conical cover (2) is of a conical structure, six oxygen supplementing openings are uniformly formed in the periphery of the conical cover, and oxygen is provided for secondary combustion.
4. The secondary combustion chamber for the flue gas of the household garbage according to claim 1, characterized in that: a guide plate and an ash blocking disc are arranged at a smoke inlet of the secondary combustion chamber cavity (5), and smoke rotates to enter the secondary combustion chamber cavity through the rotating holding flue (13).
5. The secondary combustion chamber for the flue gas of the household garbage according to claim 1, characterized in that: the slag remover (12) adopts a water seal structure, the slag remover (12) adopts a wet method to remove slag, and a lower return chain type removes slag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921854109.6U CN211176825U (en) | 2019-10-31 | 2019-10-31 | Secondary combustion chamber for household garbage flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921854109.6U CN211176825U (en) | 2019-10-31 | 2019-10-31 | Secondary combustion chamber for household garbage flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211176825U true CN211176825U (en) | 2020-08-04 |
Family
ID=71801916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921854109.6U Expired - Fee Related CN211176825U (en) | 2019-10-31 | 2019-10-31 | Secondary combustion chamber for household garbage flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211176825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805910A (en) * | 2019-10-31 | 2020-02-18 | 安徽中泰创展环境科技股份有限公司 | Secondary combustion chamber for household garbage flue gas |
-
2019
- 2019-10-31 CN CN201921854109.6U patent/CN211176825U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805910A (en) * | 2019-10-31 | 2020-02-18 | 安徽中泰创展环境科技股份有限公司 | Secondary combustion chamber for household garbage flue gas |
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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: 246300 3 South Ring Road, Qianshan County Economic Development Zone, Anqing, Anhui Patentee after: ANHUI ZHONGTAI CHUANGZHAN ENVIRONMENT TECHNOLOGY Co.,Ltd. Address before: 246300 3 South Ring Road, Qianshan County Economic Development Zone, Anqing, Anhui Patentee before: ANHUI ZHONGTAI CHUANGZHAN ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 |