CN111215011A - Hot air circulation heating and utilization system of the reactor body - Google Patents
Hot air circulation heating and utilization system of the reactor body Download PDFInfo
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- CN111215011A CN111215011A CN202010124595.7A CN202010124595A CN111215011A CN 111215011 A CN111215011 A CN 111215011A CN 202010124595 A CN202010124595 A CN 202010124595A CN 111215011 A CN111215011 A CN 111215011A
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- reaction kettle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
- F24H3/065—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators using fluid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
- F24H9/0073—Arrangement or mounting of means for forcing the circulation of air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1877—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1881—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
- F24H9/2085—Arrangement or mounting of control or safety devices for air heaters using fluid fuel
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
本发明涉及热裂解处理供热设备技术领域，尤其涉及一种反应釜体的热风循环加热利用系统，该系统燃气热风炉与所述燃气燃烧器连通设置，反应釜体和燃气热风炉之间通过热风进风管道连通，所述热风进风管道上设有高温补偿器，高温循环风机的入口与反应釜体连通，高温循环风机的出口与燃气热风炉连通，高温循环风机的出口还与空气换热器连通，所述空气换热器与燃气燃烧器连通形成闭合回路。该系统设有燃气热风炉，该燃气热风炉将经过空气换热器的热空气进行加热，并与循环后的热风进行混合，实现了热风的充分利用，提高热效率，改善了安全系数低、能耗高的传统加热工艺，克服了传统工艺技术的缺陷，操作简单。
The invention relates to the technical field of thermal cracking treatment heating equipment, in particular to a hot air circulation heating and utilization system for a reaction kettle body. The hot air inlet duct is connected, and the hot air inlet duct is provided with a high temperature compensator, the inlet of the high temperature circulating fan is connected with the reactor body, the outlet of the high temperature circulating fan is connected with the gas hot blast stove, and the outlet of the high temperature circulating fan is also exchanged with the air. The heat exchanger communicates with the gas burner to form a closed loop. The system is equipped with a gas-fired hot-blast stove, which heats the hot air passing through the air heat exchanger and mixes it with the circulated hot air, realizing the full utilization of the hot air, improving the thermal efficiency, and improving the low safety factor and energy efficiency. The traditional heating process with high consumption overcomes the defects of traditional process technology, and the operation is simple.
Description
Technical Field
The invention relates to the technical field of thermal cracking heat supply equipment, in particular to a hot air circulating heating utilization system of a reaction kettle body.
Background
The thermal cracking technology for treating waste tyre is characterized by that it utilizes the hot flue gas produced by burning various industrial waste oils or electric heating device to heat and decompose the waste tyre under the condition of oxygen-poor or inert atmosphere, and can recover gas, oil, solid carbon, steel wire and some chemical products, and its heat-supplying equipment is the necessary condition for implementing final cracking reaction.
The traditional waste tire thermal cracking heating device adopts a burner direct-fired or electric heating device, the fuel gas used by the burner is cracked gas generated after cracking, the self-sufficiency and recycling effects can be realized, but the burner heating device has certain defects, flame directly contacts a reaction kettle roller, the roller is easy to deform, because the flame can contact the roller during heating, if leakage exists in the reaction process, high-temperature flue gas and flame are easy to contact oil gas and noncondensable gas, and the safety coefficient is reduced; the electric heating device adopts microwave heating, has good safety performance, but cannot realize industrial production through electromagnetic heating in terms of energy consumption and input and output.
Meanwhile, some researches on a related reaction kettle circulating heating system also appear in the prior art, but the reaction kettle circulating heating system in the prior art is insufficient in heat recycling, and only simply enters the reaction kettle to transfer heat to materials after gas in the reaction kettle is processed by a heat exchanger through a circulating fan, so that the heat recycling efficiency is relatively low.
Disclosure of Invention
The invention provides a hot air circulation heating utilization system of a reaction kettle body, aiming at the defects of the existing reaction kettle heating system, the reaction kettle body solves the technical problem that the safety coefficient is low because flame directly contacts a reaction kettle roller when a burner heating device is used for heating, also solves the technical problems that the microwave heating device is large in energy consumption and cannot realize industrial production, and simultaneously solves the technical problem that the existing reaction kettle circulation heating system is low in heat circulation utilization rate.
In order to achieve the purpose, the invention provides the following technical scheme:
a heated air circulation heating utilization system of a reaction kettle body comprises:
a gas-fired burner, a burner for gas,
a gas hot-blast stove communicated with the gas burner,
the reaction kettle body is communicated with the gas hot blast stove through a hot blast inlet pipeline,
a high-temperature compensator is arranged on the hot air inlet pipeline,
the inlet of the high-temperature circulating fan is communicated with the reaction kettle body, and the outlet of the high-temperature circulating fan is communicated with the gas hot blast stove;
and the outlet of the high-temperature circulating fan is also communicated with the air heat exchanger, and the air heat exchanger is communicated with the gas burner to form a closed loop.
Further, a flame monitoring device is arranged in the gas burner, and a cyclone disc is arranged in the gas hot blast stove.
Furthermore, the reaction kettle body can be one or more, and a heating box body is covered around the reaction kettle body.
Further, an inner cavity is formed between the heating box body and the reaction kettle body.
Further, the reaction kettle body is communicated with the high-temperature circulating fan through a hot air return pipeline, and an adjusting valve is arranged on the hot air return pipeline.
Furthermore, a cooling air adjusting valve is arranged on a pipeline between the high-temperature circulating fan and the gas hot blast stove.
Further, the air heat exchanger is communicated with the gas burner through a combustion air pipeline.
Furthermore, the air heat exchanger is also connected with a combustion fan.
Furthermore, a smoke exhaust pipeline is further arranged at the smoke exhaust port of the air heat exchanger, and a smoke exhaust regulating valve and a smoke exhaust induced draft fan are further arranged on the smoke exhaust pipeline.
Further, heated air circulation heating utilize system still include natural gas and pyrolysis gas valves of admitting air, natural gas and pyrolysis gas valves of admitting air include two way valves of admitting air of natural gas valves of admitting air and pyrolysis gas valves of admitting air, every way valves of admitting air connect gradually and be equipped with manual valve, pressure transmitter, manometer, pressure switch, pneumatic trip valve, electrical control valve, pneumatic ignition valve, ignition nozzle and firearm.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a thermal cyclic heating utilization system of a reaction kettle body, mainly relates to a complete set of system device for cracking, heating and cyclic utilization of waste rubber, improves the utilization rate of hot air, improves the traditional heating process with low safety coefficient and high energy consumption, overcomes the defects of the traditional process technology, is simple to operate, provides a complete set of system device for high-efficiency cyclic utilization of roller hot air, circularly heats the reaction roller by hot air generated by a hot-blast stove in the cracking process, achieves the aim of reducing the temperature required by cracking and the energy consumption in the cyclic utilization process, and utilizes the hot air to carry out heating cracking and realize the cyclic utilization of the hot air.
2. The thermal circulation heating utilization system of the reaction kettle body provided by the invention ensures environmental protection and continuity in the production process, improves the working efficiency and the hot air circulation utilization rate of the waste tire cracking reaction, provides heat required by the cracking reaction, avoids direct contact of burner flame with a reaction kettle roller for heating, improves the safety coefficient and prolongs the service life of equipment, has few moving parts, can reduce energy consumption and save cost.
3. The thermal circulation heating utilization system of the reaction kettle body is provided with the gas hot blast stove, the gas hot blast stove heats hot air passing through the air heat exchanger and mixes the heated air with circulated hot air, the full utilization of the hot air is realized, the heat efficiency is improved, and the system is provided with the explosion-proof port and the overhaul port, so that the remarkable effects of safety, stability and strong continuity are achieved.
4. The thermal circulation heating utilization system of the reaction kettle body is also provided with the high-temperature compensator, the high-temperature compensator is a flexible structure arranged on the hot air inlet and outlet pipeline, the stress of the pipeline wall and the acting force acting on the valve piece or the support structure are reduced, the high-temperature circulation fan is arranged, the circulation of hot air can be realized, the hot air after heat exchange with the reaction kettle body can be circulated into the gas hot blast stove through the fan, and the quality of products and the production efficiency are improved.
Drawings
FIG. 1 is a schematic structural diagram of a hot air circulation heating utilization system of a reaction kettle body provided by the invention;
the system comprises a natural gas and pyrolysis gas inlet valve group, a gas burner, a gas hot blast stove, a high-temperature compensator, a hot air inlet pipeline, a reaction kettle body, a heating box body, a regulating valve, a hot air return pipeline, a high-temperature circulating fan, an air heat exchanger, a combustion fan, a combustion air pipeline, a cooling air regulating valve, a smoke exhaust pipeline and a smoke exhaust draught fan, wherein the natural gas and pyrolysis gas inlet valve group comprises 1, the natural gas and pyrolysis gas inlet valve group comprises 2, the gas burner comprises 3, the gas hot blast stove comprises 4, the high-temperature compensator.
Detailed Description
The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "inner", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to more clearly and specifically describe the hot air circulation heating utilization system of the reaction kettle body provided by the embodiment of the invention, the following description is provided with reference to specific embodiments.
Example 1
As shown in fig. 1, the present invention provides a hot air circulation heating utilization system of a reaction kettle body, which specifically comprises: the gas burner (2) is arranged in the gas-fired boiler,
a gas hot-blast stove 3, the gas hot-blast stove 3 is communicated with the gas burner 2,
the reaction kettle body 6 is communicated with the gas hot blast stove 3 through a hot blast air inlet pipeline 5,
a high-temperature compensator 4 is arranged on the hot air inlet pipeline 5,
the inlet of the high-temperature circulating fan 10 is communicated with the reaction kettle body 6, and the outlet of the high-temperature circulating fan 10 is communicated with the gas hot blast stove 3;
the outlet of the air heat exchanger 11 and the outlet of the high-temperature circulating fan 10 are also communicated with the air heat exchanger 11, and the air heat exchanger 11 is communicated with the gas burner 2 to form a closed loop.
The heated air circulation heating system that this embodiment provided still includes natural gas and pyrolysis gas valves of admitting air, natural gas and pyrolysis gas valves of admitting air 1 include two way valves of admitting air of natural gas valves of admitting air and pyrolysis gas valves of admitting air, and every way valves of admitting air connects gradually and is equipped with manual valve, pressure transmitter, manometer, pressure switch, pneumatic trip valve, electrical control valve, pneumatic ignition valve, ignition nozzle and firearm, can cut off at any time and the evacuation, and safe and reliable is the device of gas admission valve control flow, also is the key of the ignition of control admission.
In the embodiment, the natural gas is decompressed to the pressure required by the process, enters the natural gas inlet valve group, sequentially enters the gas burner 2 through the valve group, is ignited by the igniter and then burns; the pyrolysis gas is noncondensable gas generated after the waste rubber is pyrolyzed, is stored in a gas holder, is decompressed to the pressure required by the process through a pressure reducing valve, enters a pyrolysis gas inlet valve group, sequentially passes through a valve group, enters a gas burner 2, is ignited by an igniter and then is combusted; the gas burner 2 is internally provided with a flame monitoring device which can carry out monitoring and early warning, combustible gas enters the gas hot blast stove 3 after being burnt, and the gas hot blast stove 3 is internally provided with a cyclone disc for carrying out full circulation of hot air.
The reaction kettle body 6 in this embodiment may be one or more, a heating box body 7 is coated around the reaction kettle body 6, an inner cavity is formed between the heating box body 7 and the reaction kettle body 6, the reaction kettle body 6 is communicated with the high-temperature circulating fan 10 through a hot air return pipeline 9, an adjusting valve 8 is arranged on the hot air return pipeline 9, a cooling air adjusting valve 14 is arranged on a pipeline between the high-temperature circulating fan 10 and the gas hot-blast stove 3, heated hot air enters the heating box body 7 through a hot air inlet pipeline 5, the heating box body 7 is coated around the reaction kettle body 6, hot air enters the heating box body 7 to heat the reaction kettle body 6, the direction of hot air circulation is opposite to the direction of material movement, the temperature for material cracking is reached by continuously heating the reaction kettle body 6, the hot air circulation is adjusted through the adjusting valve 8 on the upper part of the box body, and the hot air passes through the high-temperature circulating fan 10 after passing through, most hot-blast circulation to the gas hot-blast furnace 3 in through the cooling air governing valve 14 cooling afterward to continue to participate in the circulation, in all the other hot-blast entering air heat exchanger 11 to discharge waste flue gas through air heat exchanger 11, air heat exchanger 11 still connect and be equipped with combustion fan 12, air heat exchanger 11's flue gas discharge port department still be equipped with smoke exhaust pipeline 16, still be equipped with smoke exhaust governing valve 15 and smoke exhaust draught fan 17 on the smoke exhaust pipeline 16, waste flue gas carries out desulfurization treatment along smoke exhaust pipeline 16 through outside smoke exhaust draught fan 17. The air heat exchanger 11 is communicated with the gas burner 2 through a combustion-supporting air pipeline 13, the air heat exchanger 11 can heat air through circulated hot air, and simultaneously, cold air originally entering the gas burner 2 is heated to about 200 ℃, and then enters the gas burner 2 to be distributed and supplemented with air, so that the heat efficiency and the utilization rate are improved, and the defects of high energy consumption and low heat utilization rate exist in the prior art that cold air is generally adopted to directly supplement air to the gas burner 2.
The gas burner 2 described in this embodiment is a device for converting gas into heat energy through a chemical reaction mode of combustion, i.e. air and gas are mixed by a premixing device according to a proper proportion to be fully combusted, the gas and air can be fed into a hearth according to a required concentration, speed, turbulence and mixing mode, and the fuel can be stably ignited and combusted in the hearth.
The gas hot blast stove 3 in the embodiment is used for heating blast air to required temperature, working according to the principle of 'heat storage', entering the hot air inlet pipeline 5 to participate in hot air circulation, providing temperature guarantee for cracking reaction, heating hot air passing through the air heat exchanger, and mixing the hot air with circulated hot air, thereby realizing full utilization of hot air, improving heat efficiency, and being provided with an explosion-proof port and an access port, thereby achieving the remarkable effects of safety, stability and strong continuity.
The high temperature compensator 4 described in this embodiment is a compensation device for thermal expansion and contraction of a pipeline, and is a flexible structure arranged on a hot air inlet and outlet pipeline, and in order to prevent the pipeline from deforming or breaking due to thermal elongation or temperature stress when the temperature of the heat supply pipeline is raised, so as to compensate the thermal elongation of the pipeline, thereby reducing the stress of the pipe wall and the acting force acting on a valve member or a support structure, the high temperature compensator is composed of a corrugated pipe (an elastic element) and end pipes, supports, flanges, conduits and other accessories which form a working main body of the high temperature compensator, and has the function of compensating the additional stress caused by temperature difference and mechanical vibration. Therefore, in order to prevent the pipe from being deformed or damaged due to thermal elongation or temperature stress when the heating pipe is heated, it is necessary to provide a compensator 4 on the pipe to compensate for the thermal elongation of the pipe, thereby reducing the stress of the pipe wall and the force acting on the valve member or the bracket structure.
The hot air inlet pipeline 5 and the hot air return pipeline 9 in the embodiment are hot air circulating inlet and outlet pipelines, and an insulating layer is required to be arranged outside or inside the hot air inlet pipeline and the hot air return pipeline, so that heat loss is prevented. The reaction kettle body 6 is a high-temperature cracking furnace, has good sealing performance and is a place for cracking reaction. The heating box body 7 is wrapped around the reaction kettle body 6, the box body 7 and the reaction kettle body 6 form an inner cavity, hot air passes through and circulates, and the interior of the heating box body is heated and provides heat circulation for cracking. The high-temperature circulating fan 10 is a power device for circulating hot air, hot air after heat exchange with the reaction kettle body is circulated to the gas hot blast stove 3 through the fan, the high-temperature circulating fan 10 is a power device for circulating hot air, the stable operation of the power device is the key of the whole set of system, and meanwhile, the product quality and the production efficiency are improved.
Claims (10)
1. The utility model provides a heated air circulation heating of reation kettle body utilizes system which characterized in that: the heated air circulation heating utilization system comprises:
a gas burner (2) for burning a gas,
a gas hot-blast stove (3), the gas hot-blast stove (3) is communicated with the gas burner (2),
a reaction kettle body (6), wherein the reaction kettle body (6) is communicated with the gas hot blast stove (3) through a hot blast inlet pipeline (5),
a high-temperature compensator (4) is arranged on the hot air inlet pipeline (5),
the inlet of the high-temperature circulating fan (10) is communicated with the reaction kettle body (6), and the outlet of the high-temperature circulating fan (10) is communicated with the gas hot blast stove (3);
the outlet of the air heat exchanger (11) and the outlet of the high-temperature circulating fan (10) are also communicated with the air heat exchanger (11), and the air heat exchanger (11) is communicated with the gas burner (2) to form a closed loop.
2. The heated air circulation heating utilization system of the reaction kettle body according to claim 1, characterized in that: a flame monitoring device is arranged in the gas burner (2), and a cyclone disc is arranged in the gas hot blast stove (3).
3. The heated air circulation heating utilization system of the reaction kettle body according to claim 1, characterized in that: the reaction kettle body (6) can be one or more, and a heating box body (7) is covered around the reaction kettle body (6).
4. The heated air circulation heating utilization system of the reaction kettle body according to claim 3, characterized in that: an inner cavity is formed between the heating box body (7) and the reaction kettle body (6).
5. The heated air circulation heating utilization system of the reaction kettle body according to claim 1, characterized in that: the reaction kettle body (6) is communicated with the high-temperature circulating fan (10) through a hot air return pipeline (9), and the hot air return pipeline (9) is provided with an adjusting valve (8).
6. The heated air circulation heating utilization system of the reaction kettle body according to claim 1, characterized in that: and a cooling air adjusting valve (14) is arranged on a pipeline between the high-temperature circulating fan (10) and the gas hot blast stove (3).
7. The heated air circulation heating utilization system of the reaction kettle body according to claim 1, characterized in that: the air heat exchanger (11) is communicated with the gas burner (2) through a combustion-supporting air pipeline (13).
8. The heated air circulation heating utilization system of the reaction kettle body according to claim 1, characterized in that: the air heat exchanger (11) is also connected with a combustion-supporting fan (12).
9. The heated air circulation heating utilization system of the reaction kettle body according to claim 1, characterized in that: and a smoke exhaust pipeline (16) is also arranged at the smoke exhaust port of the air heat exchanger (11), and a smoke exhaust regulating valve (15) and a smoke exhaust induced draft fan (17) are also arranged on the smoke exhaust pipeline (16).
10. The heated air circulation heating utilization system of the reaction kettle body according to claim 1, characterized in that: the heated air circulation heating utilization system further comprises a natural gas and pyrolysis gas inlet valve group (1), the natural gas and pyrolysis gas inlet valve group (1) comprises two gas inlet valve groups of a natural gas inlet valve group and a pyrolysis gas inlet valve group, and each gas inlet valve group is sequentially connected with a manual valve, a pressure transmitter, a pressure gauge, a pressure switch, a pneumatic stop valve, an electric regulating valve, a pneumatic ignition valve, an ignition burner and an igniter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010124595.7A CN111215011A (en) | 2020-02-27 | 2020-02-27 | Hot air circulation heating and utilization system of the reactor body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010124595.7A CN111215011A (en) | 2020-02-27 | 2020-02-27 | Hot air circulation heating and utilization system of the reactor body |
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| CN111215011A true CN111215011A (en) | 2020-06-02 |
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| CN202010124595.7A Pending CN111215011A (en) | 2020-02-27 | 2020-02-27 | Hot air circulation heating and utilization system of the reactor body |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112457875A (en) * | 2020-12-14 | 2021-03-09 | 双星集团有限责任公司 | Thermal cracking equipment for treating oily waste liquid by utilizing hot blast stove |
| CN112708429A (en) * | 2020-12-10 | 2021-04-27 | 胡进 | Energy-saving thermal cracking reaction kettle for treating organic solid waste |
| CN113814143A (en) * | 2020-06-19 | 2021-12-21 | 东方电气集团东方锅炉股份有限公司 | Hot air supply structure for heat absorber and absorption coating heating and curing treatment system |
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2020
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| CN105135138A (en) * | 2015-09-24 | 2015-12-09 | 江苏广通管业制造有限公司 | Expansion joint |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814143A (en) * | 2020-06-19 | 2021-12-21 | 东方电气集团东方锅炉股份有限公司 | Hot air supply structure for heat absorber and absorption coating heating and curing treatment system |
| CN112708429A (en) * | 2020-12-10 | 2021-04-27 | 胡进 | Energy-saving thermal cracking reaction kettle for treating organic solid waste |
| CN112457875A (en) * | 2020-12-14 | 2021-03-09 | 双星集团有限责任公司 | Thermal cracking equipment for treating oily waste liquid by utilizing hot blast stove |
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Application publication date: 20200602 |