CN112066398A - Heat accumulating type incinerator reverse combustion system - Google Patents
Heat accumulating type incinerator reverse combustion system Download PDFInfo
- Publication number
- CN112066398A CN112066398A CN202010826371.0A CN202010826371A CN112066398A CN 112066398 A CN112066398 A CN 112066398A CN 202010826371 A CN202010826371 A CN 202010826371A CN 112066398 A CN112066398 A CN 112066398A
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- branch pipe
- communicated
- burning
- heat
- heat accumulating
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 30
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 239000000919 ceramic Substances 0.000 claims description 12
- 230000001172 regenerating effect Effects 0.000 claims description 11
- 238000005338 heat storage Methods 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 6
- 239000012774 insulation material Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 33
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 239000010815 organic waste Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
- F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
- F23G7/066—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
Abstract
The invention discloses a back-burning system of a heat accumulating type incinerator, which comprises a heat accumulating type incinerator, an air inlet pipeline, an exhaust pipeline, a back-burning fan and a heat mixing box, wherein the heat accumulating type incinerator comprises at least three heat accumulating chambers and combustion chambers arranged above the heat accumulating chambers and communicated with the heat accumulating chambers, the back-burning pipeline comprises a first branch pipe, a second branch pipe and a third branch pipe, one end of the first branch pipe is communicated with the combustion chambers, the other end of the first branch pipe is communicated with the heat mixing box, at least one first regulating valve is arranged on the first branch pipe, one end of the second branch pipe is communicated with the bottoms of the heat accumulating chambers, the other end of the second branch pipe is connected with the back-burning fan, the back-burning fan is communicated with the heat mixing box through a connecting pipe, a second regulating valve and a fresh air replenishing valve are arranged on the. The invention can solve the problem that the emission of the back-burning tail gas does not reach the standard in the back-burning process of the heat accumulating type incinerator, the back-burning temperature is adjustable and controllable, and the potential safety hazard in the back-burning process is lower.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to a back combustion system of a heat accumulating type incinerator.
Background
Regenerative Thermal Oxidizer (RTO) is an organic waste gas treatment device, and is widely applied to the treatment of organic waste gas due to high efficiency, low energy consumption and stable performance. In the use process, the ceramic heat accumulator arranged at the bottom layer of the heat accumulator is easily polluted by dust, oil stain, crystal grains and the like, and the wall surface and pore channels of the ceramic heat accumulator are easily blocked and adhered by the ceramic heat accumulator. In the past, the phenomena of reduced heat storage performance, increased pressure difference, temperature penetration and the like of the ceramic heat accumulator are easy to occur, and further the overall performance of the RTO is reduced. Therefore, it is necessary to clean the heat storage body at regular time, and this process is called back burning (cleaning).
The back burning system of the existing common incinerator mostly adopts the following methods: (1) the gas inlet and outlet time of the heat accumulator is prolonged, so that the high temperature of the RTO combustion chamber is moved to the lower layer of the heat accumulator, pollutants adhered to the ceramic heat accumulator are eluted and gasified through the high temperature, but part of pollutants are discharged along with the gas outlet pipeline, and the discharge of waste gas does not reach the standard and does not accord with the environmental protection standard in the reverse combustion state; (2) clean air is introduced for reverse combustion, but the introduced air needs to be heated, so that more heat is consumed; (3) the organic waste gas which is just purified is led out for back burning, but the temperature of the gas which is just led out is higher and is not well controlled. And partial pollutants have inflammability, and if the lower layer temperature of the regenerator is higher, potential safety hazards exist.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a back-burning system of a heat accumulating type incinerator, which can solve the problems that the back-burning tail gas emission of the heat accumulating type incinerator does not reach the standard and the safety hazard in the back-burning process is high.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a back-burning system of a heat accumulating type incinerator comprises a heat accumulating type incinerator, an air inlet pipeline, an exhaust pipeline, a back-burning fan and a mixing box, wherein the heat accumulating type incinerator comprises at least three heat accumulating chambers and combustion chambers which are arranged above the heat accumulating chambers and communicated with the heat accumulating chambers, one end of the air inlet pipeline is communicated with the bottoms of the heat accumulating chambers, one end of the exhaust pipeline is communicated with the bottoms of the heat accumulating chambers, the other end of the exhaust pipeline is connected to a chimney, the back-burning pipeline comprises a first branch pipe, a second branch pipe and a third branch pipe, one end of the first branch pipe is communicated with the combustion chambers, the other end of the first branch pipe is communicated with the mixing box, the first branch pipe is provided with at least one first regulating valve, one end of the second branch pipe is communicated with the bottoms of the heat accumulating chambers, the other end of the second branch pipe is connected with the back-burning fan, the back-burning, the heat mixing box is communicated with the exhaust pipeline through a third branch pipe, a third regulating valve is arranged on the third branch pipe, and switch valves are respectively arranged at the joints of the air inlet pipeline, the exhaust pipeline, the second branch pipe and the bottoms of the heat storage chambers.
Furthermore, the first branch pipe, the heat mixing box and the second branch pipe are respectively provided with a temperature detector. Can mix the in-process that the hot-water mixing becomes the gas of burning back at high temperature gas and low temperature, monitor the temperature variation condition of gas, reduce the potential safety hazard and be convenient for regulate and control the temperature of the gas of burning back simultaneously.
Furthermore, a pressure detector is arranged on the second branch pipe. Because the temperature of the back-burning gas is higher, the pipeline is provided with the pressure detector, so that the pipeline pressure can be prevented from being overlarge, and the potential safety hazard is reduced.
Furthermore, a heat accumulator, a ceramic filler and a gas collection chamber are sequentially arranged in the heat accumulator from top to bottom, and temperature detectors are respectively arranged in the heat accumulator, the gas collection chamber and the combustion chamber. The temperature at the bottom of the heat storage bed is monitored and controlled by arranging a temperature detector.
Furthermore, a concentration type detector is arranged at the position, close to the chimney, of the exhaust pipeline. And the exhaust emission is monitored by a concentration detector to ensure that the emission reaches the standard.
Furthermore, the heat mixing box and the outer parts of all pipelines are coated with high-temperature resistant ceramic fiber heat insulation materials. The pipeline and the heat mixing box are insulated by coating the heat insulation material, so that heat loss is reduced, and meanwhile, the personnel are prevented from being scalded.
The invention has the following beneficial effects: 1. after the counter-burning gas elutes the pollutants on the heat accumulator, the pollutants are brought into the combustion chamber to be decomposed, and the condition that the emission of the counter-burning tail gas does not reach the standard does not exist; 2. temperature detectors and regulating valves are arranged at a plurality of positions among the heat storage chamber, the heat mixing box and the back burning pipeline, so that the back burning temperature is suitable and stable and can be regulated, the temperature change condition of the whole system is clear, meanwhile, the safety of the pipeline is improved by the pressure detectors arranged on the pipeline and the coated heat insulation material, and the back burning potential safety hazard is small; 3. through drawing part high temperature gas from the combustion chamber, mixing regenerator exhaust low temperature tail gas and the low temperature clean air in the external world, the heat mixing forms the gas of backflushing, and the gas of backflushing is clean and the temperature is higher, need not to do extra intensification processing to it, and the power consumption is less.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Description of the main component symbols: 1. a regenerator; 2. a combustion chamber; 3. a heat accumulator; 4. a ceramic filler; 5. a gas collection chamber; 6. a mixing and heating box; 7. a reverse combustion fan; 8. a chimney; 9. an air intake duct; 10. an exhaust duct; 11. back burning the pipeline; 12. a first branch pipe; 13. a second branch pipe; 14. a third branch pipe; 15. a first regulating valve; 16. a second regulating valve; 17. a fresh air valve is supplemented; 18. a third regulating valve; 19. an on-off valve; 20. a temperature detector; 21. a pressure detector; 22. a concentration type detector.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
As shown in fig. 1, a back-burning system of a regenerative incinerator comprises a regenerative incinerator, an air inlet pipe 9, an exhaust pipe 10, a back-burning pipe 11, a back-burning fan 7 and a heat mixing box 6, the regenerative incinerator comprises at least three regenerators 1 and combustors 2 arranged above the regenerators 1 and communicated with the regenerators 1, one end of the air inlet pipe 9 is communicated with the bottoms of the regenerators 1, one end of the exhaust pipe 10 is communicated with the bottoms of the regenerators 1, the other end of the exhaust pipe is connected to a chimney 8, the back-burning pipe 11 comprises a first branch pipe 12, a second branch pipe 13 and a third branch pipe 14, one end of the first branch pipe 12 is communicated with the combustors 2, the other end of the first branch pipe is communicated with the heat mixing box 6, the first branch pipe 12 is provided with at least one first regulating valve 15, one end of the second branch pipe 13 is communicated with the bottoms of the regenerators 1, the other end of the second branch pipe is connected, the connecting pipe is provided with a second regulating valve 16 and a fresh air supplementing valve 17, the heat mixing box 6 is communicated with the exhaust pipeline 10 through a third branch pipe 14, the third branch pipe 14 is provided with a third regulating valve 18, and the joints of the air inlet pipeline 9, the exhaust pipeline 10, the second branch pipe 13 and the bottoms of the regenerators 1 are respectively provided with a switch valve 19.
The first branch pipe 12, the heat mixing box 6 and the second branch pipe 13 are respectively provided with a temperature detector 20. The second branch pipe 13 is provided with a pressure detector 21. The regenerator 3, the ceramic filler 4 and the gas collection chamber 5 are sequentially arranged in the regenerator 1 from top to bottom, and the temperature detectors 20 are respectively arranged in the regenerator 3, the gas collection chamber 5 and the combustion chamber 2. A concentration type detector 22 is provided in the exhaust duct 10 near the stack 8. The outside of the heat mixing box 6 and all the pipelines are coated with high temperature resistant ceramic fiber heat insulation materials.
The reverse burning process of the invention is briefly described with reference to the attached drawings:
during reverse combustion, the high-temperature gas which is partially processed in the combustion chamber 2 is guided into the heat mixing box 6 through the first branch pipe 12, the air volume when the high-temperature gas is guided out is adjusted and controlled through the first adjusting valve 15, and after the high-temperature gas is guided out, the high-temperature gas is completely separated through the design of the double valves.
Part of the purified and heat-released low-temperature tail gas is led out from the exhaust pipeline 10 through a third branch pipe 14, is led into the heat mixing box 6, is mixed with high-temperature gas to mix the temperature, is used as back-burning gas, and the air volume when the low-temperature tail gas is led out is controlled through a third adjusting valve 18.
After the temperature is mixed in the mixing box 6, the temperature of the back-burning gas is regulated again by utilizing the outside low-temperature clean air through the fresh air supply valve 17, and the back-burning gas is regulated to be suitable and stable under the monitoring of the temperature detector 20.
After the back combustion air adjustment is finished, the back combustion air is introduced into the regenerator 1 to be back-burned under the traction of the back combustion fan 7 through the second branch pipe 13, the pollutants adhered to the bottom layer of the heat accumulator 3 in the regenerator 1 are eluted and gasified, and are brought into the combustion chamber 2 to be decomposed, and the back combustion is finished.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A reverse combustion system of a regenerative incinerator, comprising: the regenerative incinerator comprises at least three regenerators and combustion chambers arranged above the regenerators and communicated with the regenerators, one end of each air inlet pipeline is communicated with the bottoms of the regenerators, one end of each exhaust pipeline is communicated with the bottoms of the regenerators, the other end of each exhaust pipeline is connected to a chimney, each reverse combustion pipeline comprises a first branch pipe, a second branch pipe and a third branch pipe, one end of each first branch pipe is communicated with the combustion chambers, the other end of each first branch pipe is communicated with a mixing box, at least one first regulating valve is arranged on each first branch pipe, one end of each second branch pipe is communicated with the bottoms of the regenerators, the other end of each second branch pipe is connected with the reverse combustion fan, the reverse combustion fan is communicated with the mixing box through a connecting pipe, a second regulating valve and a fresh air supplementing valve are arranged on the connecting pipe, and the mixing box is communicated with the exhaust pipelines through the third branch pipes, and a third regulating valve is arranged on the third branch pipe, and switch valves are respectively arranged at the joints of the air inlet pipeline, the exhaust pipeline, the second branch pipe and the bottoms of the heat storage chambers.
2. A regenerative thermal oxidizer back-burning system as set forth in claim 1, wherein: and the first branch pipe, the mixed heating box and the second branch pipe are respectively provided with a temperature detector.
3. A regenerative thermal oxidizer back-burning system as set forth in claim 1, wherein: and a pressure detector is arranged on the second branch pipe.
4. A regenerative thermal oxidizer back-burning system as set forth in claim 1, wherein: a heat accumulator, a ceramic filler and a gas collection chamber are sequentially arranged in the heat accumulator from top to bottom, and temperature detectors are respectively arranged in the heat accumulator, the gas collection chamber and the combustion chamber.
5. A regenerative thermal oxidizer back-burning system as set forth in claim 1, wherein: and a concentration type detector is arranged at the position of the exhaust pipeline close to the chimney.
6. A regenerative thermal oxidizer back-burning system as set forth in claim 1, wherein: the outer parts of the heat mixing box and all pipelines are coated with high-temperature resistant ceramic fiber heat insulation materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010826371.0A CN112066398A (en) | 2020-08-17 | 2020-08-17 | Heat accumulating type incinerator reverse combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010826371.0A CN112066398A (en) | 2020-08-17 | 2020-08-17 | Heat accumulating type incinerator reverse combustion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112066398A true CN112066398A (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010826371.0A Pending CN112066398A (en) | 2020-08-17 | 2020-08-17 | Heat accumulating type incinerator reverse combustion system |
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| Country | Link |
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| CN (1) | CN112066398A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899812A (en) * | 2019-03-19 | 2019-06-18 | 南京晨光集团有限责任公司 | A kind of anti-coking blocking heat accumulating type organic exhaust gas oxidation furnace |
| CN110195871A (en) * | 2019-06-10 | 2019-09-03 | 江苏大信环境科技有限公司 | A kind of instant coke-cleaning system and method for waterproofing material production line treating tail gas RTO |
| CN209893411U (en) * | 2019-04-25 | 2020-01-03 | 江苏琳杰环境科技有限公司 | Special incinerator pollution-free cleaning system for asphalt smoke |
-
2020
- 2020-08-17 CN CN202010826371.0A patent/CN112066398A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899812A (en) * | 2019-03-19 | 2019-06-18 | 南京晨光集团有限责任公司 | A kind of anti-coking blocking heat accumulating type organic exhaust gas oxidation furnace |
| CN209893411U (en) * | 2019-04-25 | 2020-01-03 | 江苏琳杰环境科技有限公司 | Special incinerator pollution-free cleaning system for asphalt smoke |
| CN110195871A (en) * | 2019-06-10 | 2019-09-03 | 江苏大信环境科技有限公司 | A kind of instant coke-cleaning system and method for waterproofing material production line treating tail gas RTO |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201211 |
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| RJ01 | Rejection of invention patent application after publication |