CN209978641U - Tunnel cave waste heat recovery distribution output device - Google Patents
Tunnel cave waste heat recovery distribution output device Download PDFInfo
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- CN209978641U CN209978641U CN201921725763.7U CN201921725763U CN209978641U CN 209978641 U CN209978641 U CN 209978641U CN 201921725763 U CN201921725763 U CN 201921725763U CN 209978641 U CN209978641 U CN 209978641U
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The utility model discloses a tunnel cave waste heat recovery distribution output device, waste heat recovery distribution output device sets up between burning denitration integrated device, flue gas recycling system, waste heat recovery distribution output device comprises retrieval and utilization flue gas pipe, preheating pipeline, combustion-supporting air pipeline, security personnel's pipeline, retrieval and utilization flue gas pipe respectively with preheating pipeline, combustion-supporting air pipeline, security personnel's pipeline intercommunication, preheating pipeline and tunnel cave in-connection, combustion-supporting tuber pipe and flue gas recycling system intercommunication, security personnel's pipeline and the urgent system's of loosing intercommunication of bypass, preheating pipeline, combustion-supporting air pipeline, security personnel's pipeline all are equipped with the switch diverter valve on the road. Compared with the prior art, the utility model can realize the electricity saving of the hot air combustion-supporting air high pressure fan in the recycling system; the natural gas saving is 30%; the pressure stabilizing safety function is provided for the unbalanced system pressure, the preheating function is provided for the system starting, and the damage and risk that the castable falls off and the like caused by the rapid change of the high temperature of the pipeline are avoided.
Description
Technical Field
The utility model relates to a tunnel cave field especially relates to a tunnel cave waste heat recovery distributes output device.
Background
At present, the tunnel kiln is designed to be slightly positive pressure in the kiln during normal operation, so that the exhaust gas temperature is too high, the natural environment is polluted, the heat resources are wasted, the waste heat is recycled, the heat energy is returned to the kiln after the waste heat is recycled, the consumption of natural gas is reduced, and the cost is saved. The application is based on CN201910238720.4 car bottom formula bakes burning furnace energy saving and emission reduction system over a slow fire, further improves to the practical effect of the further improvement of tunnel cave waste heat recovery distribution output device has been designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tunnel cave waste heat recovery distribution output device who has solved above-mentioned problem.
In order to realize the purpose, the utility model discloses a technical scheme is: a tunnel kiln waste heat recovery distribution output device comprises a tunnel kiln roasting system, wherein the tunnel kiln roasting system consists of a tunnel kiln, an incineration and denitration integrated device, a flue gas recycling system, a flue gas treatment system and a bypass emergency release system, tail gas of the tunnel kiln 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 the flue gas recycling system, the flue gas treatment system and the bypass emergency release system, the flue gas recycling system is provided with the waste heat recovery distribution output device, the waste heat recovery distribution output device is arranged between the incineration and denitration integrated device and the flue gas recycling system, the waste heat recovery distribution output device consists of a recycled flue gas pipe, a preheating pipeline, a combustion-supporting air pipeline and a security pipeline, the recycled flue gas pipe is respectively communicated with the preheating pipeline, the combustion-supporting air pipeline and the security pipeline, the preheating pipeline is communicated with the inside of the tunnel kiln, the combustion-supporting air pipe is communicated with the flue gas recycling system, the security pipeline is communicated with the bypass emergency bleeding system, and the preheating pipeline, the combustion-supporting air pipeline and the security pipeline are all provided with switch switching valves.
Preferably, a temperature T and pressure P signal feedback device and a system parameter measurement and control device are further arranged on the tunnel kiln. The temperature T and pressure P signal feedback device sends the collected signals to the system parameter measurement and control device.
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 preheating pipeline is communicated with the interior of the tunnel kiln 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:
1) the tunnel kiln operates year by year, and electricity consumption saving of the hot air combustion-supporting air high-pressure fan in the recycling system can be realized; the natural gas saving is 30 percent
2) The pressure stabilizing safety function is provided for the unbalanced system pressure, the preheating function is provided for the system starting, and the damage and risk that the castable falls off and the like caused by the rapid change of the high temperature of the pipeline are avoided.
Drawings
Fig. 1 is a working principle diagram of the present invention.
In the figure: 1. a tunnel kiln; 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. a preheating pipeline.
Detailed Description
The present invention will be further explained below.
The utility model discloses can be used to join in marriage defeated tunnel cave and the combustion-supporting retrieval and utilization of heat conduction oil station burning of heat conduction oil after carbon element trade tunnel cave pitch flue gas system handles
Example 1: referring to fig. 1, a tunnel kiln waste heat recovery distribution output device comprises a tunnel kiln roasting system, the tunnel kiln roasting system is composed of a tunnel kiln 1, an incineration and denitration integrated device 2, a flue gas recycling system 4, a flue gas treatment system 3 and a bypass emergency release system 5, tail gas of the tunnel kiln 1 is communicated with the incineration and denitration integrated device 2 through an outlet electric flap valve, an outlet of the incineration and denitration integrated device 2 is respectively communicated with the flue gas recycling system 4, the flue gas treatment system 3 and the bypass emergency release system 5, a waste heat recovery distribution output device 6 is arranged on the flue gas recycling system 4, the waste heat recovery distribution output device 6 is arranged between the incineration and denitration integrated device 2 and the flue gas recycling system 4, the waste heat recovery distribution output device 6 is composed of a recycled flue gas pipe, a preheating pipeline 7, 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 the four-way air port, the recycled flue gas pipe is respectively communicated with a preheating pipeline 7, a combustion-supporting air pipeline and a security pipeline, the preheating pipeline 7 is communicated with the inside of the tunnel kiln 1, high-temperature flue gas generated by the incineration and denitration integrated device 2 can be sent into the tunnel kiln 1 to carry out preheating treatment on the tunnel kiln 1 and the pipeline, so that the heat emission is reduced, the temperature in the tunnel kiln 1 is improved, a plurality of groups of tunnel kilns 1 can share one incineration and denitration integrated device 2, the combustion-supporting air pipe is communicated with the flue gas recycling system 4, the security pipeline is communicated with the bypass emergency diffusing system 5, the preheating pipeline 7, the combustion-supporting air pipeline and the security pipeline are all provided with switch valves, the pipeline switching device is used for switching the switches of all pipelines to realize the pipeline switching function of the waste heat recovery distribution output equipment 6. The recycling flue gas pipe is communicated with a recycling flue gas pipeline of the incineration and denitration integrated device 2.
And the tunnel kiln 1 is also provided with a temperature T and pressure P signal feedback device and a system parameter measurement and control device. 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.
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 2, and enabling the recycled flue gas to enter a combustion-supporting air ignition system through an air distribution device and a combustion-supporting air high-pressure fan.
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, 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 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 system is characterized by further comprising a high-temperature expansion joint, the preheating pipeline 7 is communicated with the interior of the tunnel kiln 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, and the security pipeline is communicated with an air inlet pipeline of the bypass emergency diffusing system 5 through the high-temperature expansion joint.
During operation, after high-temperature flue gas generated in the production process of the tunnel kiln 1 is incinerated by the incineration and denitration integrated device 2, a certain amount of air is mixed and returned to the tunnel kiln 1 to be used as combustion-supporting air, and the other part of flue gas is subjected to denitration, cooling and dust removal treatment and then is sent to a chimney to be discharged. The method has the advantages that the amount of the discharged flue gas of the system and the unit consumption of fuel and air in the production process are greatly reduced, the heat loss of the system is reduced, the defects of one-time investment and high operation cost of the discharged flue gas treatment of the tunnel kiln 1 are overcome, the oxygen content in the hearth is effectively controlled, and the discharged nitrogen oxides can be reduced to 131900 ten thousand mg/year from the original 2788800 ten thousand mg/year (if the discharge temperature reaches 600 ℃ according to the monitoring requirement, the discharged nitrogen oxides can reach 3900000 ten thousand mg/year).
According to different production stages of the tunnel kiln 1, high-temperature combustion-supporting air is supplied to the roasting furnace in a targeted manner. Before the system is started, the flue gas of the tunnel kiln 1 preheats the whole system through the starting preheating pipeline 7, and the pressure of the system is quickly reduced through the safety pipeline when the pressure of the system fluctuates instantly.
The above detailed description is made on the tunnel kiln waste heat recovery and distribution output device provided by the present invention, and the specific examples are applied herein to explain the principle and the implementation 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 (6)
1. The utility model provides a tunnel cave waste heat recovery distributes output device, includes tunnel cave calcination system, tunnel cave calcination system comprises tunnel cave, burning denitration integrated device, flue gas recycling system, cigarette wind processing system and the urgent system of diffusing of bypass, tunnel cave's tail gas through export electronic flap valve with burn denitration integrated device UNICOM, burn denitration integrated device export respectively with flue gas recycling system, cigarette wind processing system and the urgent system of diffusing of bypass, its characterized in that: the waste heat recovery and distribution output device is arranged on the flue gas recycling system and is arranged between the incineration and denitration integrated device and the flue gas recycling system, the waste heat recovery and distribution output device is composed of a recycled flue gas pipe, a preheating pipeline, a combustion-supporting air pipeline and a security pipeline, the recycled flue gas pipe is respectively communicated with the preheating pipeline, the combustion-supporting air pipeline and the security pipeline, the preheating pipeline is communicated with the inside of the tunnel kiln, the combustion-supporting air pipe is communicated with the flue gas recycling system, the security pipeline is communicated with the bypass emergency release system, and the preheating pipeline, the combustion-supporting air pipeline and the security pipeline are respectively provided with a switch valve.
2. The tunnel kiln waste heat recovery and distribution output device as claimed in claim 1, wherein: and a temperature T and pressure P signal feedback device and a system parameter measurement and control device are also arranged on the tunnel kiln.
3. The tunnel kiln waste heat recovery and distribution output device as claimed in claim 1, wherein: 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.
4. The tunnel kiln waste heat recovery and distribution output device as claimed in claim 3, wherein: 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.
5. The tunnel kiln waste heat recovery and distribution output device as claimed in claim 3, wherein: 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.
6. The tunnel kiln waste heat recovery and distribution output device as claimed in claim 1, wherein: the high-temperature expansion joint is arranged between the preheating pipeline and the tunnel kiln, the preheating pipeline is communicated with the interior of the tunnel kiln 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921725763.7U CN209978641U (en) | 2019-10-15 | 2019-10-15 | Tunnel cave waste heat recovery distribution output device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921725763.7U CN209978641U (en) | 2019-10-15 | 2019-10-15 | Tunnel cave waste heat recovery distribution output device |
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| CN209978641U true CN209978641U (en) | 2020-01-21 |
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| CN201921725763.7U Active CN209978641U (en) | 2019-10-15 | 2019-10-15 | Tunnel cave waste heat recovery distribution output device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974463A (en) * | 2019-03-27 | 2019-07-05 | 眉山士达新材料有限公司 | Vehicle bottom formula roaster energy-saving and emission-reduction system |
| CN115790226A (en) * | 2022-11-21 | 2023-03-14 | 乌兰察布市旭峰炭素科技有限公司 | Heat transfer oil heat exchange system for carbon production |
-
2019
- 2019-10-15 CN CN201921725763.7U patent/CN209978641U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974463A (en) * | 2019-03-27 | 2019-07-05 | 眉山士达新材料有限公司 | Vehicle bottom formula roaster energy-saving and emission-reduction system |
| CN115790226A (en) * | 2022-11-21 | 2023-03-14 | 乌兰察布市旭峰炭素科技有限公司 | Heat transfer oil heat exchange system for carbon production |
| CN115790226B (en) * | 2022-11-21 | 2023-12-26 | 乌兰察布市旭峰炭素科技有限公司 | Heat transfer oil heat exchange system for carbon production |
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