CN218269078U - Waste incineration system - Google Patents
Waste incineration system Download PDFInfo
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- CN218269078U CN218269078U CN202221592930.7U CN202221592930U CN218269078U CN 218269078 U CN218269078 U CN 218269078U CN 202221592930 U CN202221592930 U CN 202221592930U CN 218269078 U CN218269078 U CN 218269078U
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- flue gas
- waste incineration
- incineration system
- incinerator
- fan
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Abstract
The utility model provides a waste incineration system, include: an incinerator, comprising: the furnace body is used for burning garbage; the throat area is connected to the upper part of the furnace body and used for discharging flue gas; the flue gas purification system is connected with the incinerator and is used for purifying the discharged flue gas; the waste incineration system further includes: flue gas circulating device includes: the first circulating pipeline is used for guiding the flue gas discharged by the incinerator into the furnace body; and the second circulating pipeline is used for guiding the flue gas treated by the flue gas purification system into the throat area. The application can reduce energy waste.
Description
Technical Field
The application relates to the field of waste treatment, in particular to a waste incineration system.
Background
The garbage incineration is the most important means for realizing the recycling and reduction of the garbage and reducing the garbage landfill hazard at present. However, the ash content of the garbage is high, the moisture content is high, the heat value is low, and the components of various regions are complex, SO that the garbage combustion is unstable, and a large amount of SO2 and NO exist in flue gas generated by combustion X And the like. If the air supply in the furnace of the existing waste incineration boiler is not reasonably distributed, the temperature in the hearth is locally higher, the oxygen concentration is higher, the combustion in the furnace is not uniform and the like, the NO at the outlet of the boiler X The content is higher, and the direct discharge can cause greater pollution to the environment. NOx is toxic to the environment, humans and animals, and control of nitrogen oxides is particularly important. The flue gas recirculation technology reduces the total generation amount of nitrogen oxides by controlling the generation of the nitrogen oxides, thereby reducing the emission amount of the nitrogen oxides.
The prior art introduces flue gas recirculation for purification exhaust, which lacks the use of flue gas heat and thus wastes energy.
Disclosure of Invention
In view of this, it is necessary to provide a waste incineration system for utilizing the heat of the flue gas.
An embodiment of the present application provides a waste incineration system, includes:
an incinerator, comprising:
the furnace body is used for burning garbage;
the throat area is connected to the upper part of the furnace body and used for discharging flue gas;
the flue gas purification system is connected with the incinerator and is used for purifying the discharged flue gas;
the waste incineration system further comprises:
flue gas circulating device includes:
the first circulating pipeline is used for guiding the flue gas discharged by the incinerator into the furnace body;
and the second circulating pipeline is used for guiding the flue gas treated by the flue gas purification system into the throat area.
Furthermore, the waste incineration system further comprises a cyclone dust collector, and the cyclone dust collector is arranged on the first circulating pipeline to perform cyclone dust collection on the smoke entering the first circulating pipeline.
Furthermore, the first circulating pipeline is provided with a first oxygen monitor and a first fan, and the first oxygen monitor controls the air inflow of the first fan by detecting the oxygen content; the second circulating pipeline is provided with a second oxygen monitor and a second fan, and the second oxygen monitor controls the air inflow of the second fan by detecting the oxygen content.
Furthermore, the first fan and the second fan are high-temperature-resistant, wear-resistant and corrosion-resistant fans.
Further, first circulating line is equipped with first thermometer, second circulating line is equipped with the second thermometer, first thermometer and second thermometer are used for sending out the police dispatch newspaper when the temperature reaches the flue gas condensation point.
Further, the waste incineration system further comprises a waste heat boiler, and the waste heat boiler is located between the incinerator and the first circulating pipeline.
Furthermore, the first circulating pipeline is provided with a first electric valve, and the second circulating pipeline is provided with a second electric valve.
Further, the first circulation pipeline is provided with a first flowmeter, and the second circulation pipeline is provided with a second flowmeter.
Has the advantages that: owing to adopted above technical scheme, compared with the prior art, the utility model, have following beneficial effect:
1. the utility model provides a msw incineration's novel flue gas recirculation cloth wind mode solves the not high problem of current msw incineration recirculation design waste heat utilization ratio, remedies other designs and gets the flue gas port and only lead to single recirculation tuber pipe when damage, the scheduling problem that leaks out appear, needs entire system shutdown. The utility model discloses make earlier participation burning of recirculation wind, improve waste heat utilization efficiency, reduce NOx and discharge, reduce ammonia escape, improve the economic benefits of power plant.
2. The flue gas recirculation temperature of exhaust-heat boiler department is fully utilized to this application, replaces the primary air to reduce the heat waste of primary air preheater, save saturated steam, improve economic benefits.
3. Through setting up the oxygen volume detector, the oxygen content in the flue gas is gone into to more accurate judgement on the one hand, if oxygen volume is low excessively in the flue gas on the one hand, in time adjusts the burning operating mode, guarantees that the burning is stable. Simultaneously because the existence of two oxygen volume monitors, the concentration of the oxygen in the regulation boiler that can be nimble, and can not influence the hot flue gas of following the extraction of afterbody.
4. The flue gas sent to the primary air and the flue gas sent to the secondary air are separated, so that the stable performance of the two fans can be ensured.
Drawings
Fig. 1 is a schematic view of a waste incineration system according to an embodiment of the present invention.
In the figure: 1-a first electric valve, 2-a first circulating pipeline, 3-a first flowmeter, 4-a cyclone dust collector, 5-a first thermometer, 6-a first oxygen monitor, 7-a first fan, 8-a second electric valve, 9-a second circulating pipeline, 10-a second fan, 11-a second flowmeter, 12-a second thermometer and 13-a second oxygen monitor.
Detailed Description
The embodiments of the present application will be described in conjunction with the drawings in the embodiments of the present application, and it is to be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like as used herein are for illustrative purposes only.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1, the present invention provides a waste incineration system, including:
an incinerator, comprising:
the furnace body is used for burning garbage;
the throat area is connected to the upper part of the furnace body and used for discharging flue gas;
the flue gas purification system is connected with the incinerator and is used for purifying the discharged flue gas;
the waste incineration system further includes:
flue gas circulating device includes:
a first circulation duct 2 for introducing the flue gas discharged from the incinerator into the furnace body;
and the second circulating pipeline 9 is used for guiding the flue gas treated by the flue gas purification system into the throat area.
Furthermore, the waste incineration system further comprises a cyclone dust collector 4, wherein the cyclone dust collector 4 is arranged in the first circulating pipeline 2 to perform cyclone dust collection on the flue gas entering the first circulating pipeline 2.
The cyclone dust collector 4 is used for reducing large-particle dust in the flue gas and reducing the dust amount entering a subsequent flue and a fan.
Further, the first circulation pipeline 2 is provided with a first oxygen monitor 6 and a first fan 7, and the first oxygen monitor 6 controls the air inflow of the first fan 7 by detecting the oxygen content; the second circulating pipeline 9 is provided with a second oxygen monitor 13 and a second fan 10, and the second oxygen monitor 13 controls the air inflow of the second fan 10 by detecting the oxygen content.
Further, the first fan 7 and the second fan 10 are high-temperature resistant, wear resistant and corrosion resistant fans.
Further, the first circulating pipeline 2 is provided with a first thermometer 5, the second circulating pipeline 9 is provided with a second thermometer 12, and the first thermometer 5 and the second thermometer 12 are used for giving an alarm when the temperature reaches the condensation point of the flue gas.
When the temperature is lower than the designed temperature point, the pipeline is leaked and the temperature is not sufficiently preserved, and the first thermometer 5 and the second thermometer 12 are used for detecting and warning.
Further, the waste incineration system further comprises a waste heat boiler, and the waste heat boiler is located between the incinerator and the first circulating pipeline 2.
Further, the first circulation pipeline 2 is provided with a first electric valve 1, and the second circulation pipeline 9 is provided with a second electric valve 8.
Further, the first circulation pipeline 2 is provided with a first flow meter 3, and the second circulation pipeline 9 is provided with a second flow meter 11.
Through high temperature resistant corrosion-resistant wear-resisting fan 7, 10 pressure boost with the flue gas of exhaust-heat boiler export through just removing dust, the extraction flows back to a wind, replaces the wind of one section and two-section to accomplish exhaust-heat boiler's hot flue gas utilization, reduce a wind heating gas and energy consumption, with flue gas backward flow to burning furnace export behind the draught fan simultaneously, cause local low oxygen burning, reduce nitrogen oxide and produce. The size of the recirculating air volume is fed back through the flow 3 and the flow 11, and the heat preservation condition of the pipeline is detected through the thermometers 5 and 12 to ensure that the temperature of the pipeline cannot cause flue gas condensation. Through data feedback of the oxygen detectors 6 and 13, the air quantities of the variable frequency air 7 and 10 and the working condition of the hearth can be adjusted in time.
In addition, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present application, and that suitable changes and modifications to the above embodiments are within the scope of the disclosure of the present application as long as they are within the true spirit and scope of the present application.
Claims (8)
1. A waste incineration system, comprising:
an incinerator, comprising:
the furnace body is used for burning garbage;
the throat area is connected to the upper part of the furnace body and used for discharging flue gas;
the flue gas purification system is connected with the incinerator and is used for purifying the discharged flue gas;
characterized in that, the waste incineration system still includes:
flue gas circulating device includes:
the first circulating pipeline is used for guiding the flue gas discharged by the incinerator into the furnace body;
and the second circulating pipeline is used for guiding the flue gas treated by the flue gas purification system into the throat area.
2. The waste incineration system of claim 1, further comprising a cyclone dust collector disposed in the first circulation pipe to cyclone dust removal of the flue gas entering the first circulation pipe.
3. The waste incineration system of claim 1, wherein the first circulation pipeline is provided with a first oxygen monitor and a first fan, and the first oxygen monitor controls the air inflow of the first fan by detecting the oxygen content; the second circulating pipeline is provided with a second oxygen monitor and a second fan, and the second oxygen monitor controls the air inflow of the second fan by detecting the oxygen content.
4. The waste incineration system of claim 3, wherein the first and second fans are high temperature, wear, and corrosion resistant fans.
5. The waste incineration system of claim 1, wherein the first circulation pipe is provided with a first thermometer, the second circulation pipe is provided with a second thermometer, and the first thermometer and the second thermometer are used for giving an alarm when the temperature reaches a condensation point of the flue gas.
6. A waste incineration system according to claim 1, further comprising a waste heat boiler located between the incinerator and the first circulation pipe.
7. A waste incineration system according to claim 1, characterised in that the first circulation conduit is provided with a first electrically operated valve and the second circulation conduit is provided with a second electrically operated valve.
8. Waste incineration system according to claim 7, characterised in that the first circulation conduit is provided with a first flow meter and the second circulation conduit is provided with a second flow meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221592930.7U CN218269078U (en) | 2022-06-24 | 2022-06-24 | Waste incineration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221592930.7U CN218269078U (en) | 2022-06-24 | 2022-06-24 | Waste incineration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218269078U true CN218269078U (en) | 2023-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221592930.7U Active CN218269078U (en) | 2022-06-24 | 2022-06-24 | Waste incineration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218269078U (en) |
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2022
- 2022-06-24 CN CN202221592930.7U patent/CN218269078U/en active Active
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