CN210108048U - Combustion-supporting oxygen and nitrogen distribution system device - Google Patents
Combustion-supporting oxygen and nitrogen distribution system device Download PDFInfo
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- CN210108048U CN210108048U CN201921725779.8U CN201921725779U CN210108048U CN 210108048 U CN210108048 U CN 210108048U CN 201921725779 U CN201921725779 U CN 201921725779U CN 210108048 U CN210108048 U CN 210108048U
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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
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Abstract
The utility model discloses a combustion-supporting oxygen distribution supplies nitrogen system device, bake burning furnace roasting system over a slow fire including the vehicle bottom formula, be equipped with waste heat recovery distribution output device, deoxidization air compressor machine, the combustion-supporting pipeline of anaerobic on the flue gas recycling system, waste heat recovery distribution output device sets up between burning denitration integrated device and flue gas recycling system, the combustion-supporting pipeline of anaerobic distributes output device intercommunication with waste heat recovery, the combustion-supporting pipeline of anaerobic is equipped with the ooff valve on passing through the natural gas admission line intercommunication anaerobic combustion-supporting pipeline of deoxidization air compressor machine and roasting furnace over a slow fire. Compared with the prior art, the method has the advantages that the recycled flue gas is divided into two paths for supporting combustion, oxygen is added into the recycled flue gas for supporting combustion through the air distribution device on the combustion-supporting air pipeline on one path, oxygen in the recycled flue gas is removed through the deoxygenation air compressor on the oxygen-free combustion-supporting pipeline on one path, oxygen filling and combustion supporting are stopped when oxygen-enriched combustion is excessive, nitrogen filling and combustion supporting are switched to reduce the oxygen-enriched amount in the furnace, and the deflagration phenomenon is effectively avoided.
Description
Technical Field
The utility model relates to a bake burning furnace field over a slow fire, especially relate to a combustion-supporting oxygen distribution supplies nitrogen system device.
Background
In the prior art, a CN201910238720.4 car bottom type roasting furnace energy-saving and emission-reducing system introduces a U.S. advanced technology, a car bottom type roasting furnace uses natural gas as fuel, air is combustion-supporting air, the natural gas and volatile components are combusted in the furnace, strong carcinogens such as benzopyrene and dioxin in flue gas need to be incinerated at a high temperature of 850-1000 ℃, and tail gas treatment equipment such as denitration, waste heat recovery and dust removal is matched, so that the production cost is high, only emission reduction indexes of pollutant emission concentration can be realized, in order to keep the temperature condition in the furnace in the roasting process, the natural gas needs to be intermittently combusted according to feedback parameters, the combustion-supporting air needs to consume more than 25% of chemical energy when being heated to the combustion temperature, and the air excess coefficient α exceeds standard, spontaneous combustion explosion is easily caused, the production is endangered, the fuel consumption of the car bottom type roasting furnace is optimized, the air distribution level.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a solve above-mentioned problem, it is excessive to fill air (oxygen) into, dashes into nitrogen gas through deoxidization nitrogen making equipment and reduces its oxygen content, effectively avoids the emergence of oxygen boosting deflagration phenomenon.
In order to realize the purpose, the utility model discloses a technical scheme is: a combustion-supporting oxygen-and-nitrogen-supply system device comprises a roasting system of a vehicle-bottom roasting furnace, wherein the roasting system of the vehicle-bottom roasting furnace consists of a roasting furnace, a burning and denitration integrated device, a flue gas recycling system, a flue gas and air treatment system and a bypass emergency diffusing system, the tail gas of the roasting furnace is communicated with the incineration and denitration integrated device through an outlet electric flap valve, the outlet of the incineration and denitration integrated device is respectively communicated with a flue gas recycling system, a flue gas and air treatment system and a bypass emergency diffusing system, the flue gas recycling system is provided with a waste heat recovery and distribution output device, a deoxidizing air compressor and an oxygen-free combustion-supporting pipeline, the waste heat recovery and distribution output equipment is arranged between the incineration and denitration integrated device and the flue gas recycling system, the anaerobic combustion-supporting pipeline is communicated with the waste heat recovery distribution output device, and a switch valve is arranged on the anaerobic combustion-supporting pipeline communicated with the natural gas inlet pipeline of the roasting furnace through a deoxygenation air compressor.
Preferably, the waste heat recovery and distribution output device comprises a recycled flue gas pipe, an anaerobic combustion-supporting air pipeline, a combustion-supporting air pipeline and a safety pipeline, wherein the recycled flue gas pipe is respectively communicated with the anaerobic combustion-supporting air pipeline, the combustion-supporting air pipeline and the safety pipeline, the anaerobic combustion-supporting air pipeline is communicated with the anaerobic combustion-supporting pipeline, the combustion-supporting air pipe is communicated with a flue gas recycling system, the safety pipeline is communicated with a bypass emergency release system, and the anaerobic combustion-supporting air pipeline, the combustion-supporting air pipeline and the safety pipeline are all provided with switch valves.
Preferably, a temperature T and pressure P signal feedback device and a system parameter measurement and control device are further arranged on the roasting furnace.
Preferably, the flue gas recycling system comprises a recycling flue gas inlet adjusting valve, an air distribution device, a combustion-supporting air high-pressure fan and a combustion-supporting air ignition system which are sequentially communicated through pipelines.
Preferably, the air distribution device adopts a primary air distribution device and a secondary air distribution device, the two air distribution devices are connected in series, and the air distribution device is provided with an oxygen supplement device.
Preferably, the combustion-supporting air ignition system comprises a combustion-supporting air distributor and an ignition system, the ignition system comprises an ignition fan, a high-temperature electromagnetic valve, an ignition transformer, an ignition electrode and a combustion nozzle, and the combustion-supporting air distributor comprises a combustion-supporting air main pipe, a combustion-supporting air branch pipe and an adjusting valve.
Preferably, the system further comprises a high-temperature expansion joint, the oxygen-free combustion-supporting air pipeline is communicated with a natural gas inlet pipe of the roasting furnace through the high-temperature expansion joint, the combustion-supporting air pipe is communicated with an air inlet pipeline of the flue gas recycling system through the high-temperature expansion joint, and the security pipeline is communicated with an air inlet pipeline of the bypass emergency diffusing system through the high-temperature expansion joint.
Compared with the prior art, the utility model has the advantages of: the recycled flue gas is divided into two paths for supporting combustion, oxygen is added into the recycled flue gas for supporting combustion through an air distribution device on a combustion-supporting air pipeline on one path, oxygen in the recycled flue gas is removed through a deoxygenation air compressor on an oxygen-free combustion-supporting pipeline on one path, oxygen charging and combustion supporting are stopped when oxygen-enriched combustion is excessive, nitrogen charging and combustion supporting are switched to reduce the oxygen-enriched amount in the furnace, and the deflagration phenomenon is effectively avoided.
Drawings
Fig. 1 is a working principle diagram of the present invention.
In the figure: 1. roasting furnace; 2. an incineration and denitration integrated device; 3. a flue gas and air treatment system; 4. a flue gas recycling system; 5. bypassing the emergency bleeding system; 6. a waste heat recovery distribution output device; 7. deoxidizing an air compressor; 8. and a natural gas inlet pipe.
Detailed Description
The present invention will be further explained below.
The utility model discloses can be used to carbon industry and bakes burning-supporting retrieval and utilization of burning furnace and heat conduction oil station burning for baking burning furnace pitch flue gas system processing back allotment.
Example 1: referring to fig. 1, a combustion-supporting oxygen-distribution nitrogen-supply system device, includes that the roasting furnace roasting system is baked over a slow fire in the vehicle bottom formula, the roasting furnace roasting system is baked over a slow fire in the vehicle bottom formula and is become by burning 1, burning denitration integrated device, flue gas recycling system 4, flue gas processing system 3 and bypass emergency bleeding system 5 group, the tail gas of burning over a slow fire 1 is through export electronic flap valve and burning denitration integrated device UNICOM, burning denitration integrated device export respectively with flue gas recycling system 4, flue gas processing system 3 and bypass emergency bleeding system 5, be equipped with waste heat recovery distribution output device 6, deoxidization air compressor machine 7, anaerobic combustion-supporting pipeline on flue gas recycling system 4, waste heat recovery distribution output device 6 sets up between burning denitration integrated device and flue gas recycling system 4, anaerobic combustion-supporting pipeline and waste heat recovery distribution output device 6 intercommunication, anaerobic combustion-supporting pipeline is through deoxidization air compressor machine 7 with 8 ways intercommunications of natural gas intake pipe The fuel pipeline is provided with a switch valve.
And a temperature T and pressure P signal feedback device and a system parameter measurement and control device are also arranged on the roasting furnace 1. The feedback device and the system parameter measurement and control device are purchase equipment and do not relate to program design improvement, and the temperature T and pressure P signal feedback device sends a collected signal to the system parameter measurement and control device. The system parameter measurement and control device provides a switch control instruction for a switch switching valve of the waste heat recovery and distribution output device 6 according to a preset parameter threshold value, and a worker can automatically control the system parameter measurement and control device.
When in work: when detecting that the temperature T in the furnace is too high to generate oxygen-enriched combustion, the waste heat recovery distribution output device 6 switches the recycled flue gas from the combustion-supporting air pipeline to the oxygen-free combustion-supporting pipeline, oxygen in the recycled flue gas is removed through the oxygen-removing air compressor 7, the residual flue gas to be preheated (containing a large amount of nitrogen) enters the furnace from the natural gas inlet pipe together, so that the oxygen-enriched amount in the furnace is reduced, when the temperature T is too low, the flue gas is switched to the combustion-supporting pipeline to carry out oxygen-enriched combustion supporting, and the combustion explosion phenomenon caused by the oxygen-enriched.
The deoxygenation air compressor 7 adopts a fixed compressor of Suzhou Pongpo machinery Limited company to perform hydrogen deoxygenation and nitrogen purification, raw material nitrogen (recycled flue gas) firstly passes through a deoxygenator filled with noble metal palladium, so that impurity oxygen in the nitrogen reacts with added hydrogen to generate water, the water is cooled through a cooler, then the raw material nitrogen enters a freeze dryer to reduce the temperature and the dew point, most of water in the nitrogen is removed, and then the raw material nitrogen passes through an adsorption dryer to perform deep water removal, so that high-purity nitrogen recycled gas is obtained.
The waste heat recovery and distribution output device 6 is composed of a recycling flue gas pipe, an anaerobic combustion-supporting air pipeline, a combustion-supporting air pipeline and a security pipeline, the waste heat recovery and distribution output device 6 adopts a four-way air pipe, a switch switching valve is arranged at four air ports, the recycling flue gas pipe is respectively communicated with the anaerobic combustion-supporting air pipeline, the combustion-supporting air pipeline and the security pipeline, the anaerobic combustion-supporting air pipeline is communicated with the anaerobic combustion-supporting air pipeline, the combustion-supporting air pipe is communicated with a flue gas recycling system 4, the security pipeline is communicated with a bypass emergency bleeding system 5, the anaerobic combustion-supporting air pipeline, the combustion-supporting air pipeline and the security pipeline are all provided with the switch switching valve, and the. The recycling flue gas pipe is communicated with a recycling flue gas pipeline of the incineration and denitration integrated device.
The air distribution device adopts a first-stage air distribution device and a second-stage air distribution device, the two sets of air distribution devices are connected in series, a proper amount of air (oxygen) is distributed into the first-stage air distribution device, the initial adjustment of the temperature of a recycling system is realized, the safe operation of subsequent system equipment is ensured, the air is mixed through the second-stage air distribution device, the relatively precise adjusting function is realized, and the stable parameters when high-temperature mixed gas in the system enters the subsequent equipment are ensured. The air distribution device is provided with an oxygen supplementing device, and the air distribution device and the oxygen supplementing device are conventional purchased equipment and aim to provide oxygen for recycled flue gas so as to facilitate combustion supporting at a combustion nozzle.
The oxygen-free combustion-supporting air pipeline is communicated with a natural gas inlet pipe 8 of the roasting furnace 1 through the high-temperature expansion joint, the combustion-supporting air pipe is communicated with an air inlet pipeline of the flue gas recycling system 4 through the high-temperature expansion joint, the security pipeline is communicated with an air inlet pipeline of the bypass emergency diffusing system 5 through the high-temperature expansion joint, the effective pipeline of the high-temperature expansion joint is thermally stretched, and flue gas leakage is effectively avoided.
The flue gas recycling system 4 comprises a recycling flue gas inlet adjusting valve, an air distribution device, a combustion-supporting air high-pressure fan and a combustion-supporting air ignition system which are sequentially communicated through pipelines. And opening a recycled flue gas inlet regulating valve, extracting recycled flue gas from the incineration and denitration integrated device, and introducing the recycled flue gas into a combustion-supporting air ignition system through an air distribution device and a combustion-supporting air high-pressure fan.
The combustion-supporting air ignition system comprises a combustion-supporting air distributor and an ignition system, the ignition system comprises an ignition fan, a high-temperature electromagnetic valve, an ignition transformer, an ignition electrode and a combustion nozzle, and the combustion-supporting air distributor comprises a combustion-supporting air main pipe, a combustion-supporting air branch pipe and an adjusting valve. The recycled flue gas generated by the combustion-supporting air high-pressure fan is sprayed out from each combustion nozzle for supporting combustion through the combustion-supporting air main pipe and the combustion-supporting air branch pipe. The recycled flue gas is used as combustion-supporting gas, so that the energy efficiency is improved.
The above description is made in detail for the combustion-supporting oxygen-and-nitrogen-supplying system device provided by the present invention, and the specific examples are applied herein to explain the principle and the implementation manner of the present invention, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; while the invention has been described in terms of specific embodiments and applications, it will be apparent to those skilled in the art that numerous variations and modifications can be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides a combustion-supporting oxygen distribution nitrogen supply system device, includes that the car bottom formula bakes burning furnace roasting system over a slow fire, car bottom formula bakes burning furnace roasting system over a slow fire by burning furnace, burns denitration integrated device, flue gas recycling system, flue gas processing system and bypass and promptly diffuses the system and constitute, the tail gas that bakes burning furnace is through the electronic flap valve of export and is linked together with burning denitration integrated device, burns denitration integrated device export and promptly diffuses the system with flue gas recycling system, flue gas processing system and bypass respectively, its characterized in that: be equipped with waste heat recovery distribution output device, deoxidization air compressor machine, the combustion-supporting pipeline of anaerobic on the flue gas recycling system, waste heat recovery distribution output device sets up between burning denitration integrated device and flue gas recycling system, the combustion-supporting pipeline of anaerobic communicates with waste heat recovery distribution output device, the combustion-supporting pipeline of anaerobic is equipped with the ooff valve on passing through the deoxidization air compressor machine and the natural gas inlet line intercommunication anaerobic combustion-supporting pipeline of burning furnace over a slow fire.
2. A combustion supporting oxygen and nitrogen distribution system device according to claim 1, characterized in that: the waste heat recovery and distribution output device is composed of a recycled flue gas pipe, an anaerobic combustion-supporting air pipeline, a combustion-supporting air pipeline and a security pipeline, wherein the recycled flue gas pipe is respectively communicated with the anaerobic combustion-supporting air pipeline, the combustion-supporting air pipeline and the security pipeline, the anaerobic combustion-supporting air pipeline is communicated with the anaerobic combustion-supporting pipeline, a combustion-supporting air pipe is communicated with a flue gas recycling system, the security pipeline is communicated with a bypass emergency release system, and switch switching valves are arranged on the anaerobic combustion-supporting air pipeline, the combustion-supporting air pipeline and the security pipeline.
3. A combustion supporting oxygen and nitrogen distribution system device according to claim 2, characterized in that: and a temperature T and pressure P signal feedback device and a system parameter measurement and control device are also arranged on the roasting furnace.
4. A combustion supporting oxygen and nitrogen distribution system device according to claim 1, characterized in that: the flue gas recycling system comprises a recycling flue gas inlet adjusting valve, an air distribution device, a combustion-supporting air high-pressure fan and a combustion-supporting air ignition system which are sequentially communicated through pipelines.
5. A combustion supporting oxygen and nitrogen distribution system device according to claim 4, characterized in that: the air distribution device adopts a primary air distribution device and a secondary air distribution device, the two air distribution devices are connected in series, and the air distribution device is provided with an oxygen supplement device.
6. A combustion supporting oxygen and nitrogen distribution system device according to claim 4, characterized in that: the combustion-supporting air ignition system comprises a combustion-supporting air distributor and an ignition system, the ignition system comprises an ignition fan, a high-temperature electromagnetic valve, an ignition transformer, an ignition electrode and a combustion nozzle, and the combustion-supporting air distributor comprises a combustion-supporting air main pipe, a combustion-supporting air branch pipe and an adjusting valve.
7. A combustion supporting oxygen and nitrogen distribution system device according to claim 2, characterized in that: the oxygen-free combustion-supporting air pipeline is communicated with a natural gas inlet pipe of the roasting furnace through the high-temperature expansion joint, the combustion-supporting air pipe is communicated with an air inlet pipeline of a flue gas recycling system through the high-temperature expansion joint, and the security pipeline is communicated with an air inlet pipeline of a bypass emergency diffusing system through the high-temperature expansion joint.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921725779.8U CN210108048U (en) | 2019-10-15 | 2019-10-15 | Combustion-supporting oxygen and nitrogen distribution system device |
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| CN201921725779.8U CN210108048U (en) | 2019-10-15 | 2019-10-15 | Combustion-supporting oxygen and nitrogen distribution system device |
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| CN210108048U true CN210108048U (en) | 2020-02-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116625110A (en) * | 2023-06-08 | 2023-08-22 | 广东科达新能源装备有限公司 | Method for deoxidizing in kiln |
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- 2019-10-15 CN CN201921725779.8U patent/CN210108048U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116625110A (en) * | 2023-06-08 | 2023-08-22 | 广东科达新能源装备有限公司 | Method for deoxidizing in kiln |
| CN116625110B (en) * | 2023-06-08 | 2023-10-31 | 广东科达新能源装备有限公司 | Method for deoxidizing in kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Combustion Support Oxygen and Nitrogen Supply System Device Effective date of registration: 20230329 Granted publication date: 20200221 Pledgee: Meishan Meizhou Financing Guarantee Co.,Ltd. Pledgor: Meishan Shida New Materials Co.,Ltd. Registration number: Y2023980036624 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |