Self-adaptive hot blast stove system of cracking furnace

Abstract

The utility model discloses a self-adaptive hot-blast stove system of a cracking furnace, which belongs to the technical field of combustion equipment and comprises a hot-blast stove and a cracking carbonization furnace. A combustor is fixedly mounted on the hot blast stove, a combustion fan and an external energy supply system are externally connected to the combustor, a dilution fan is externally connected to the hot blast stove, and a hot air pipeline is mounted at the tail end of the hot blast stove; one end, far away from the hot air furnace, of the hot air pipeline is connected with the cracking carbonization furnace; an exhaust pipe is mounted at the tail end of the cracking carbonization furnace; a cracking pipeline is installed between the combustor and the exhaust pipe, and a booster fan is fixedly installed on the exhaust pipe. Compared with the prior art, the self-adaptive hot-blast stove system of the cracking furnace can efficiently crack carbides, basically does not need external energy sources in the cracking process, and can adaptively adjust the temperature of hot gas to carbonize organic matters in the cracking carbonization furnace.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of combustion equipment, and particularly relates to a pyrolysis furnace self-adaptive hot blast furnace system. BACKGROUND

[0002] With the development of science and technology, combustion equipment is applied more and more widely, and energy is a necessary consumable for combustion equipment. Common energy such as coal and oil is not renewable energy, and for combustion equipment, such energy is a one-time consumable, which directly reduces the environmental protection of the combustion equipment and is the main reason why most combustion equipment does not conform to the low-carbon environmental protection concept.

[0003] The existing pyrolysis carbonization furnace is an environmental protection technical equipment, and when working, organic matter is fed into the furnace body, and then hot gas is conveyed to make the organic matter have a low-temperature pyrolysis reaction under anoxic conditions and be decomposed into ash and flue gas containing carbon monoxide and various hydrocarbons, but it still needs to consume other energy by means of the burner on the hot gas furnace to obtain the required hot gas, thereby reducing the environmental protection.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a pyrolysis furnace self-adaptive hot blast furnace system.

[0005] The information disclosed in the background section of this document is only intended to increase the understanding of the overall background of the present utility model and should not be considered as acknowledging or in any form implying that the information constitutes prior art known to those skilled in the art. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims to provide a pyrolysis furnace self-adaptive hot blast furnace system, which can realize efficient pyrolysis of carbides and does not need external energy in the pyrolysis process.

[0007] In order to achieve the above-mentioned purpose, the technical scheme provided by a specific embodiment of the utility model is as follows:

[0008] A pyrolysis furnace self-adaptive hot blast furnace system comprises a hot blast furnace and a pyrolysis carbonization furnace.

[0009] A burner is fixedly installed on the hot blast furnace, and an auxiliary combustion fan and an external energy supply system are connected to the burner, a dilution fan is connected to the hot blast furnace, and a hot blast pipeline is installed at the end of the hot blast furnace.

[0010] One end of the hot blast pipeline away from the hot blast furnace is connected to the pyrolysis carbonization furnace, and an exhaust pipe is installed at the end of the pyrolysis carbonization furnace.

[0011] A pyrolysis pipeline is installed between the burner and the exhaust pipe, and a booster fan is fixedly installed on the exhaust pipe.

[0012] In one or more embodiments of the present application, the external energy supply system comprises a liquefied petroleum gas pipeline, a pneumatic ball valve is installed on the liquefied petroleum gas pipeline, and a nitrogen supply system is connected to the liquefied petroleum gas pipeline.

[0013] In one or more embodiments of the present application, a plurality of hot air branch pipes are fixedly installed on the hot air pipeline, and a hot air valve is fixedly installed on each of the plurality of hot air branch pipes.

[0014] The plurality of hot air branch pipes are connected to the upper, middle and lower parts of the pyrolysis carbonization furnace, respectively.

[0015] In one or more embodiments of the present application, a second pair of emptying pipes is fixedly installed on the hot air pipeline, and a second emptying valve is fixedly installed on the second pair of emptying pipes.

[0016] In one or more embodiments of the present application, a temperature and pressure sensor is installed on the hot blast furnace.

[0017] In one or more embodiments of the present application, a manual valve is installed on the exhaust pipe.

[0018] In one or more embodiments of the present application, a temperature, pressure and oxygen content instrument is installed on the exhaust pipe.

[0019] In one or more embodiments of the present application, two groups of first emptying pipes and two groups of pneumatic valves are installed on the pyrolysis pipeline, and a first emptying valve is fixedly installed on the first emptying pipe.

[0020] In one or more embodiments of the present application, a nitrogen purging port is arranged on the pyrolysis pipeline.

[0021] In one or more embodiments of the present application, a spiral feeder is installed at one end of the pyrolysis carbonization furnace, and a spiral discharger is installed at the other end of the pyrolysis carbonization furnace.

[0022] Compared with the prior art, the pyrolysis furnace self-adaptive hot blast furnace system can efficiently pyrolyze carbonates, and basically does not need external energy during the pyrolysis process, and can self-adaptively adjust the hot gas temperature to carbonize the organic matter in the pyrolysis carbonization furnace. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 Structure diagram of a second air-pairing diffusion pipe of a pyrolysis furnace self-adapting hot blast furnace system in an embodiment of the present utility model Figure 1 ;

[0025] Figure 2 Structure diagram of a second air-pairing diffusion pipe of a pyrolysis furnace self-adapting hot blast furnace system in an embodiment of the present utility model Figure 2 ;

[0026] Figure 3 Structure diagram of a second air-pairing diffusion pipe of a pyrolysis furnace self-adapting hot blast furnace system in an embodiment of the present utility model

[0027] Figure 4 Structure diagram of a second air-pairing diffusion pipe of a pyrolysis furnace self-adapting hot blast furnace system in an embodiment of the present utility model

[0028] Figure 5 Process pipeline and instrument flow chart of a pyrolysis furnace self-adapting hot blast furnace system in an embodiment of the present utility model

[0029] Figure 6 Process pipeline and instrument flow chart of a pyrolysis furnace self-adapting hot blast furnace system in an embodiment of the present utility model

[0030] Figure 7 Process pipeline and instrument flow chart of a pyrolysis furnace self-adapting hot blast furnace system in an embodiment of the present utility model.

[0031] Main figure mark explanation:

[0032] 10, hot blast furnace; 11, dilution air fan; 12, combustion air fan; 13, burner; 20, pyrolysis pipeline; 21, first air-pairing diffusion pipe; 211, first emptying valve; 22, pneumatic valve; 23, nitrogen purging port; 30, hot blast pipeline; 31, hot blast branch pipe; 311, hot blast valve; 32, second air-pairing diffusion pipe; 321, second emptying valve; 40, pyrolysis carbonization furnace; 41, screw feeder; 42, screw discharger; 43, exhaust pipe; 431, booster fan; 432, manual valve. DETAILED DESCRIPTION

[0033] In order to enable the personnel in the technical field to better understand the technical solutions in the utility model, the technical solutions in the utility model embodiments will be clearly and completely described below in combination with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the personnel in the art without creative labor should belong to the protection scope of the utility model.

[0034] As shown in the utility model one embodiment of a kind of cracking furnace self-adaptive hot blast stove system, including hot blast stove 10 and pyrolysis carbonization furnace 40, hot blast stove 10 can be for pyrolysis carbonization furnace 40 inside supply pyrolysis organic hot gas, organic particulate matter pyrolysis is converted into carbon, and the carbon of good conversion can be provided for other agricultural or industrial combustion needs. Figures 1-7 Among them, one end of pyrolysis carbonization furnace 40 is provided with screw feeder 41, for the automatic feeding of organic particulate matter, the other end of pyrolysis carbonization furnace 40 is provided with screw discharger 42, for the automatic discharge of carbonide, so that pyrolysis carbonization furnace 40 can be automated operation.

[0035] As shown in the utility model one embodiment of a kind of cracking furnace self-adaptive hot blast stove system, including hot blast stove 10 and pyrolysis carbonization furnace 40, hot blast stove 10 can be for pyrolysis carbonization furnace 40 inside supply pyrolysis organic hot gas, organic particulate matter pyrolysis is converted into carbon, and the carbon of good conversion can be provided for other agricultural or industrial combustion needs.

[0036] Figure 5 And Figure 7 As shown in the utility model one embodiment of a kind of cracking furnace self-adaptive hot blast stove system, including hot blast stove 10 and pyrolysis carbonization furnace 40, hot blast stove 10 can be for pyrolysis carbonization furnace 40 inside supply pyrolysis organic hot gas, organic particulate matter pyrolysis is converted into carbon, and the carbon of good conversion can be provided for other agricultural or industrial combustion needs.

[0037] In addition, liquefied petroleum gas pipeline is also connected with nitrogen supply system, when the liquefied petroleum gas pipeline is closed, nitrogen can be blown to the liquefied petroleum gas pipeline to remove the residual liquefied petroleum gas inside, to prevent the remaining liquefied petroleum gas in the pipeline from causing backfire when igniting next time, and to ensure safe operation.

[0038] The output end of combustion-supporting fan 12 is connected with the air distribution port of burner 13 through a pipeline, and combustion-supporting fan 12 can supply air to burner 13, so that burner 13 can produce high-temperature hot gas by burning.

[0039] Hot blast stove 10 is connected with dilution fan 11, the output end of dilution fan 11 is connected with the inside of hot blast stove 10 through a pipeline, and cold air can be blown into the inside of hot blast stove 10. The high-temperature hot gas produced by burning of burner 13 is mixed with the cold air blown into hot blast stove 10 by dilution fan 11 to reach the required temperature.

[0040] ​The hot blast furnace 10 is provided with temperature and pressure sensors for real-time detection of the temperature and pressure of the mixed hot air.

[0041] Specifically, the temperature of the mixed hot air can be adjusted by adjusting the amount of cold air blown by the dilution fan 11, so as to conveniently adjust the temperature and pressure of the mixed hot air according to the needs, thereby being able to adaptively adjust the carbonization of the organic matter in the pyrolysis carbonization furnace 40 by the hot air temperature.

[0042] As shown in Figures 1-3 , the hot blast furnace 10 is provided with a hot blast pipe 30 at the end, and the hot air can be guided out through the hot blast pipe 30. Five groups of hot blast branch pipes 31 are fixedly installed on the hot blast pipe 30, and hot blast valves 311 are fixedly installed on the five groups of hot blast branch pipes 31 for controlling the on-off of the hot blast branch pipes 31.

[0043] The five groups of hot blast branch pipes 31 are connected to the upper, middle and lower parts of the pyrolysis carbonization furnace 40 respectively, so that the hot air can enter from multiple parts of the pyrolysis carbonization furnace 40, realizing uniform and efficient pyrolysis carbonization of the organic matter.

[0044] The hot blast pipe 30 is fixedly provided with a second pair of air exhaust pipes 32, and a second exhaust valve 321 is fixedly installed on the second pair of air exhaust pipes 32 for controlling the on-off of the second pair of air exhaust pipes 32. The second pair of air exhaust pipes 32 can realize the exhaust of hot air, cut off the hot air supply of the pyrolysis carbonization furnace 40, and thus control the system to stop circulating.

[0045] The pyrolysis carbonization furnace 40 is provided with an exhaust pipe 43 at the end, which is used for the exhaust of the pyrolysis flue gas in the pyrolysis carbonization furnace 40. At this time, the pyrolysis flue gas contains carbon monoxide and other gases generated by the carbonization of particulate matter. A manual valve 432 is installed on the exhaust pipe 43, which can be opened and closed according to the needs of the carbonization in the pyrolysis carbonization furnace 40.

[0046] The exhaust pipe 43 is also provided with temperature, pressure and oxygen content instruments, which can detect the parameters of carbon monoxide and other gases in the flue gas. After passing the inspection, the carbon monoxide can be used as a gas fuel for the burner 13.

[0047] As shown in Figure 1 and Figure 2 , a pyrolysis pipe 20 is installed between the burner 13 and the exhaust pipe 43. The qualified gas fuel is conducted to the burner 13 through the pyrolysis pipe 20. A booster fan 431 is fixedly installed on the exhaust pipe 43. The gas fuel can be correspondingly boosted by the booster fan 431 during the conduction process to meet the gas fuel supply needs of the burner 13.

[0048] As shown in Figure 4As shown, two sets of first venting pipes 21 and two sets of pneumatic valves 22 are installed on the cracking pipeline 20, and the pneumatic valves 22 are used to control the opening and closing of the cracking pipeline 20, so as to control the supply of gaseous fuel. The first venting pipes 21 are fixedly installed with first venting valves 211. When the pneumatic valves 22 are closed, the first venting valves 211 are opened, so that the gaseous fuel in the cracking pipeline 20 can be discharged outward through the first venting pipes 21.

[0049] As shown in Figure 5 and Figure 6 As shown, the cracking pipeline 20 is provided with a nitrogen purging port 23, through which a nitrogen supply system can be connected, and through which nitrogen can be blown into the cracking pipeline 20, so as to purify the cracking pipeline 20 with nitrogen, to remove the residual gaseous fuel in the cracking pipeline 20, to prevent the residual gaseous fuel in the cracking pipeline 20 from causing deflagration when the next cycle is started, and to ensure safety when the system is operated again.

[0050] As shown in Figures 5-7 The ignition process: the burner 13 on the hot blast furnace 10 is ignited and burned by external liquefied petroleum gas, the combustion air fan 12 of the burner 13 is used to mix the hot gas generated after the burner 13 is burned with the cold air blown in by the dilution air fan 11 in the hot blast furnace 10 to reach the required temperature, and the hot blast pipeline 30 at the end of the hot blast furnace 10 is connected with the upper, middle and lower parts of the cracking carbonization furnace 40, and organic granular materials are put into the cracking carbonization furnace 40. The organic granular materials begin to carbonize when they meet the hot air and emit carbon monoxide and other gases. At this time, the gas is discharged outward through the exhaust pipe 43, and after being detected by the temperature, pressure and oxygen content instruments on the exhaust pipe 43, the gas is supplied to the burner 13 as gaseous fuel for combustion through the booster fan 431.

[0051] The cycle process: the cracking flue gas is used as gaseous fuel to make the burner 13 burn, the liquefied petroleum gas pipeline is closed by the pneumatic ball valve, the nitrogen purging pipeline is used, the manual valve 432 on the exhaust pipe 43 is opened and closed according to the needs of the carbonized material in the cracking carbonization furnace 40, and the cracking flue gas is discharged through the exhaust pipe 43 after heat exchange in the cracking carbonization furnace 40.

[0052] System shutdown: when the system needs to be shut down, the second venting valve 321 on the hot blast pipeline 30 is opened, and the five hot blast valves 311 connecting the cracking carbonization furnace 40 are closed. After the carbonized material in the cracking carbonization furnace 40 is discharged, the pneumatic valves 22 on the cracking pipeline 20 are closed, and the cracking pipeline 20 is purged with nitrogen.

[0053] The system can adapt to the heat and air required for carbonization, utilize the heat generated by the combustion of carbon monoxide generated during the carbonization of organic matter to carbonize again, complete a complete closed loop, have less required energy or no external energy source except ignition, and has the advantages of adaptive control system adjustment, and perfectly makes the carbonization process simple, environmentally friendly and efficient.

[0054] Compared with the prior art, the pyrolysis furnace self-adaptive hot blast furnace system can efficiently pyrolyze carbonides, and basically does not need external energy during the pyrolysis process, and can self-adaptively adjust the hot gas temperature to carbonize the organic matter in the pyrolysis carbonization furnace 40.

[0055] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0056] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. An adaptive hot blast stove system for a pyrolysis furnace, characterized in that, include: A hot air furnace, on which a burner is fixedly installed, and the burner is externally connected to a combustion-supporting fan and an external energy supply system. A dilution fan is externally connected to the hot air furnace, and a hot air duct is installed at the end of the hot air furnace. A pyrolysis carbonization furnace, wherein the end of the hot air duct away from the hot air furnace is connected to the pyrolysis carbonization furnace, and an exhaust pipe is installed at the end of the pyrolysis carbonization furnace; A pyrolysis pipe is installed between the burner and the exhaust pipe, and a booster fan is fixedly installed on the exhaust pipe.

2. The adaptive hot blast stove system for a pyrolysis furnace according to claim 1, characterized in that, The external energy supply system includes a liquefied petroleum gas pipeline, a pneumatic ball valve is installed on the liquefied petroleum gas pipeline, and a nitrogen supply system is connected to the liquefied petroleum gas pipeline.

3. The adaptive hot blast stove system for a pyrolysis furnace according to claim 1, characterized in that, Multiple sets of hot air branch pipes are fixedly installed on the hot air duct, and hot air valves are fixedly installed on each set of hot air branch pipes. The multiple sets of hot air branch pipes are respectively connected to the upper, middle and lower parts of the pyrolysis carbonization furnace.

4. The adaptive hot blast stove system for a pyrolysis furnace according to claim 3, characterized in that, A second pair of air vent pipes is fixedly installed on the hot air duct, and a second air vent valve is fixedly installed on the second pair of air vent pipes.

5. The adaptive hot blast stove system for a pyrolysis furnace according to claim 1, characterized in that, The hot air furnace is equipped with temperature and pressure sensors.

6. The adaptive hot blast stove system for a pyrolysis furnace according to claim 1, characterized in that, A manual valve is installed on the exhaust pipe.

7. The adaptive hot blast stove system for a pyrolysis furnace according to claim 6, characterized in that, The exhaust pipe is also equipped with temperature, pressure and oxygen content gauges.

8. The adaptive hot blast stove system for a pyrolysis furnace according to claim 1, characterized in that, The pyrolysis pipeline is equipped with two sets of first pair of air vent pipes and two sets of pneumatic valves, and the first pair of air vent pipes is fixedly equipped with a first air vent valve.

9. The adaptive hot blast stove system for a pyrolysis furnace according to claim 8, characterized in that, The pyrolysis pipeline is equipped with a nitrogen purging port.

10. The adaptive hot blast stove system for a pyrolysis furnace according to claim 1, characterized in that, A screw feeder is installed at one end of the pyrolysis carbonization furnace, and a screw discharger is installed at the other end of the pyrolysis carbonization furnace.

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