CN217464486U - Waste incineration waste heat recovery tail gas dust pelletizing system - Google Patents
Waste incineration waste heat recovery tail gas dust pelletizing system Download PDFInfo
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- CN217464486U CN217464486U CN202221281678.8U CN202221281678U CN217464486U CN 217464486 U CN217464486 U CN 217464486U CN 202221281678 U CN202221281678 U CN 202221281678U CN 217464486 U CN217464486 U CN 217464486U
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Abstract
The utility model discloses a waste incineration waste heat recovery tail gas dust pelletizing system in the refuse treatment field, including sack cleaner and the air inlet pipeline and the air outlet pipeline of being connected with sack dust collector, be equipped with smoke temperature detection device on the air inlet pipeline, the intercommunication has the return air pipeline on the air outlet pipeline, is equipped with first control valve, first fan and electric heater on the return air pipeline, and return air pipeline air outlet communicates to the air inlet pipeline. The utility model discloses a waste incineration waste heat recovery tail gas dust pelletizing system has advantages such as operating stability is high, long service life.
Description
Technical Field
The utility model belongs to the technical field of the refuse treatment technique and specifically relates to a waste incineration waste heat recovery tail gas dust pelletizing system is related to.
Background
Along with the development of national economy and the improvement of the living standard of people, the garbage output of China reaches hundreds of millions of tons, and the aims of solving the garbage problem are garbage volume reduction, garbage reduction, resource recycling and harmless treatment. The current method is incineration. The flue gas discharged by the waste incineration waste heat recycling system in the prior art contains a large amount of harmful substances such as acid gas, particulate matters, dioxin and the like, and the direct discharge of the flue gas into the atmosphere can cause serious environmental pollution, so that the flue gas needs to be purified before being discharged. Acid gas is generally removed through a spray reaction tower, then active carbon powder is used for adsorbing harmful substances such as particulate matters, dioxin and the like, then dust in tail gas is filtered through a bag-type dust remover, and then the tail gas is sent to a chimney through a first draught fan to be discharged.
The bag-type dust remover is a terminal device in the waste incineration flue gas treatment process flow, and the flue gas entering the bag-type dust remover has the characteristics of high water content, high temperature and strong corrosivity. Most of garbage incineration waste heat recovery tail gas dust removal systems in the prior art have the problems that smoke directly enters a bag-type dust remover through a smoke pipeline, and due to unstable temperature of the smoke, when the temperature of the smoke is too low, slag formation can be formed on the surface of a filter bag of the bag-type dust remover, so that the filter bag is corroded, and the internal resistance of the dust remover is large; when the temperature of the flue gas is too high, the problems of high-temperature damage of a filter bag of the bag-type dust collector and the like are easily caused, and further improvement is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a waste incineration waste heat recovery tail gas dust pelletizing system that can steady operation.
The purpose of the utility model is realized like this: the utility model provides a waste incineration waste heat recovery tail gas dust pelletizing system, includes the sack cleaner and with the inlet line and the gas outlet pipeline that the sack cleaner is connected, be equipped with smoke temperature detection device on the inlet line, the intercommunication has the return air pipeline on the outlet line, is equipped with first control valve, first fan and electric heater on the return air pipeline, return air pipeline air outlet intercommunication to the inlet line. The utility model discloses a waste incineration waste heat recovery tail gas dust pelletizing system detects the flue gas temperature that gets into the sack cleaner through smoke temperature detection device, and when flue gas temperature was less than the setting value, the switch-on return gas pipeline was adjusted advancing the cigarette temperature, improves sack cleaner life and work efficiency, has advantages such as operating stability height, long service life.
As a further improvement, the air inlet pipeline is communicated with an air supplementing pipeline, an air inlet of the air supplementing pipeline is communicated with the second fan, and the air supplementing pipeline is provided with a second control valve. Therefore, when the flue gas temperature of the bag-type dust collector is higher than a set value, the air supplementing pipeline is connected, and the high-temperature flue gas is cooled by using air, so that the flue gas temperature is kept between 140 and 170 degrees, and the normal work of the bag-type dust collector is ensured.
As a further improvement, the air inlet pipeline is communicated with branch pipelines which are directly communicated with the air outlet pipeline, and the branch pipelines are provided with third control valves. When the system is in fault or the smoke temperature is too high, the exhaust pipe can be directly used for exhausting, so that the damage to the bag-type dust collector is avoided.
As the utility model discloses a further improvement is equipped with the fabric compensator on the lateral conduit, avoids the high temperature flue gas to lead to the influence of pipeline deformation etc. to pipeline end connection reliability.
As the utility model discloses a further improvement, first control valve has 2, sets up respectively in first fan front side and electric heater rear side, is convenient for carry out accurate control to the backward flow flue gas.
As the utility model discloses a further improvement, first control valve, second control valve and third control valve are electric butterfly valve, can guarantee to all have higher sealing performance from ultra-low temperature to each temperature range of ultra-high temperature.
As a further improvement, the utility model also comprises a control system, the control system is opened or closed according to the first control valve of signal control, second control valve and the third control valve of smoke temperature detection device feedback to it is automatic to realize that whole sack cleaner advances cigarette temperature control.
Drawings
Fig. 1 is the schematic diagram of the waste incineration waste heat recovery tail gas dust removal system of the utility model.
The system comprises a bag-type dust collector 1, an air inlet pipeline 2, an air outlet pipeline 3, an air return pipeline 4, a first control valve 5, a first fan 6, an electric heater 7, an air supplementing pipeline 8, a second fan 9, a second control valve 10, branch pipelines 11, a third control valve 12 and a fabric compensator 13.
Detailed Description
The waste incineration waste heat recovery tail gas dust removal system shown in fig. 1 comprises a bag-type dust remover 1, and an air inlet pipeline 2 and an air outlet pipeline 3 which are connected with the bag-type dust remover.
The air inlet pipeline 2 is provided with a smoke temperature detection device for detecting the temperature of smoke entering the bag-type dust collector 1. The air outlet pipeline 3 is communicated with an air return pipeline 4, and the air return pipeline 4 is provided with a first control valve 5, a first fan 6 and an electric heater 7. Wherein first control valve 5 has 2, sets up respectively in 6 front sides of first fan and 7 rear sides of electric heater, is convenient for carry out accurate control to the backward flow flue gas. The air outlet of the air return pipeline 4 is communicated to the air inlet pipeline 2. When the smoke temperature is lower than the set value, the first control valve 5 is opened, the gas return pipeline 4 is connected, and the smoke inlet temperature is adjusted. The air inlet pipeline 2 is also communicated with an air supplement pipeline 8, an air inlet of the air supplement pipeline 8 is communicated with a second fan 9, and the air supplement pipeline 8 is provided with a second control valve 10. Therefore, when the temperature of the flue gas of the bag-type dust collector 1 is higher than a set value, the second control valve 10 is opened, the gas supplementing pipeline 8 is connected, the high-temperature flue gas is cooled by air, the temperature of the flue gas is kept between 140 degrees and 170 degrees, and the bag-type dust collector 1 can work normally.
The inlet pipeline 2 is communicated with a branch pipeline 11, the branch pipeline 11 is directly communicated with the outlet pipeline 3, and the branch pipeline 11 is provided with a third control valve 12. When the system is in fault or the smoke temperature is too high, the system can be directly emptied through the branch pipeline 11, and the damage to the bag-type dust collector 1 is avoided. The branch pipeline 11 is provided with a fabric compensator 13, so that the influence of pipeline deformation and the like on the connection reliability of the pipeline end head caused by high-temperature smoke is avoided.
In this embodiment, the first control valve 5, the second control valve 10, and the third control valve 12 are all electric butterfly valves, which can ensure high sealing performance in each temperature range from ultra-low temperature to ultra-high temperature. The waste incineration waste heat recovery tail gas dust removal system of this embodiment still includes control system, and control system opens or closes according to the first control valve 5 of signal control, second control valve 10 and the third control valve 12 of smoke temperature detection device feedback to it is automatic to realize that whole sack cleaner 1 advances the cigarette temperature control.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.
Claims (7)
1. The utility model provides a waste incineration waste heat recovery tail gas dust pelletizing system, includes sack cleaner and the inlet line of being connected with the sack cleaner and goes out the gas pipeline, its characterized in that: the smoke temperature detection device is arranged on the air inlet pipeline, the air outlet pipeline is communicated with an air return pipeline, the air return pipeline is provided with a first control valve, a first fan and an electric heater, and an air outlet of the air return pipeline is communicated to the air inlet pipeline.
2. The waste incineration waste heat recovery tail gas dust removal system according to claim 1, characterized in that: the air inlet pipeline is communicated with an air supplementing pipeline, an air inlet of the air supplementing pipeline is communicated with the second fan, and a second control valve is arranged on the air supplementing pipeline.
3. The waste incineration waste heat recovery tail gas dust removal system according to claim 2, characterized in that: the air inlet pipeline is communicated with a branch pipeline, the branch pipeline is directly communicated with the air outlet pipeline, and the branch pipeline is provided with a third control valve.
4. The waste incineration waste heat recovery tail gas dust removal system according to claim 3, characterized in that: and the branch pipeline is provided with a fabric compensator.
5. The waste incineration waste heat recovery tail gas dust removal system according to claim 1, characterized in that: the first control valve has 2, sets up respectively in first fan front side and electric heater rear side.
6. The waste incineration waste heat recovery tail gas dust removal system according to any one of claims 3 to 5, characterized in that: the first control valve, the second control valve and the third control valve are all electric butterfly valves.
7. The waste incineration waste heat recovery tail gas dust removal system according to any one of claims 3 to 5, characterized in that: the smoke temperature detection device is characterized by further comprising a control system, wherein the control system controls the first control valve, the second control valve and the third control valve to be opened or closed according to signals fed back by the smoke temperature detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221281678.8U CN217464486U (en) | 2022-05-26 | 2022-05-26 | Waste incineration waste heat recovery tail gas dust pelletizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221281678.8U CN217464486U (en) | 2022-05-26 | 2022-05-26 | Waste incineration waste heat recovery tail gas dust pelletizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217464486U true CN217464486U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221281678.8U Active CN217464486U (en) | 2022-05-26 | 2022-05-26 | Waste incineration waste heat recovery tail gas dust pelletizing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN217464486U (en) |
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2022
- 2022-05-26 CN CN202221281678.8U patent/CN217464486U/en active Active
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