CN212833623U - Pyrolysis gas recycling reaction device - Google Patents
Pyrolysis gas recycling reaction device Download PDFInfo
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- CN212833623U CN212833623U CN202020741472.3U CN202020741472U CN212833623U CN 212833623 U CN212833623 U CN 212833623U CN 202020741472 U CN202020741472 U CN 202020741472U CN 212833623 U CN212833623 U CN 212833623U
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
The utility model discloses a pyrolysis gas circulation reaction unit who recycles, the device include pyrolysis oven, microwave reaction stove, pyrolysis gas separation and purification device, hot-blast system and solid-state heat carrier system, the solid export of pyrolysis oven communicate in the entry of microwave reaction stove, be provided with feed arrangement between pyrolysis oven and the microwave reaction stove, the solid export of pyrolysis oven with feed arrangement is linked together, feed arrangement's one end is linked together through ripple compensator and solid-state heat carrier system, solid-state heat carrier system includes hot-blast carrier pipeline, solid-state heat carrier jar and negative pressure conveyor, through negative pressure conveyor carries high-temperature gas to in the hot-blast carrier pipeline. The high-temperature pyrolysis gas is used as a carrier to convey the solid heat carrier to enter the feeding device, so that the preheated solid heat carrier and the pyrolysis material are fully mixed for heat transfer, and the high heat conductivity of the solid heat carrier is utilized to realize uniform and rapid heating of the pyrolysis material.
Description
Technical Field
The utility model relates to a waste treatment deals with and the resourceization field, in particular to pyrolysis gas recycling's reaction unit.
Background
The thermal pyrolysis technology of the waste tires is that the tires pyrolyze rubber macromolecules of the waste tires into pyrolysis gas, pyrolysis oil and pyrolysis carbon black at a specific temperature under the condition of oxygen deficiency or the existence of inert gas, the generated pyrolysis gas is an energy source for pyrolyzing the waste tires, the generated oil and the carbon black are main products for pyrolyzing the waste tires, and the regenerated pyrolysis carbon black is a key product for pyrolyzing the tires.
The pyrolysis reaction is an endothermic reaction, i.e., provides a heat source for the reaction. Pyrolysis is classified into a direct heating method and an indirect heating method according to different heating methods.
Direct heating method: the heat required for the pyrolysis reaction is derived from pyrolysis gas generated by the decomposition of the pyrolysis material. And (4) burning the pyrolysis gas to generate high-temperature gas, wherein the high-temperature gas is used as a heat carrier and enters the pyrolysis reactor to provide heat required by pyrolysis. When the pyrolysis gas can not provide enough heat, other fuels are supplemented and combusted together with the pyrolysis gas. The method has simple equipment, can adopt high temperature, and has large treatment capacity and high gas production rate. The method has the defects that the pyrolysis gas is used as a heat carrier to heat the material to be pyrolyzed, and when the pyrolysis gas is combusted or the pyrolysis gas and a supplementary fuel are combusted together, the generated carbon dioxide and inert gases such as nitrogen in the air are mixed in the pyrolysis gas when the air is used as an oxidant, so that the pyrolysis gas is diluted, the heat value of the pyrolysis gas is reduced, and the efficiency is influenced.
An indirect heating method: a pyrolysis process for separating a material to be pyrolyzed from a direct heat-supplying medium in a pyrolysis reactor. Its main advantage is that the product has high quality and can be directly used as fuel gas. The disadvantage is that the heat conduction efficiency of the solid material is poor, so that the indirect heating area needs to be enlarged.
SUMMERY OF THE UTILITY MODEL
For overcoming the problem in the above-mentioned background art, the utility model aims to provide a pyrolysis gas circulation recycling's reaction unit, the heat of make full use of high temperature pyrolysis gas realizes the deep-processing to the pyrolysis material.
The utility model discloses a following technical scheme can realize:
the utility model provides a pyrolysis gas circulation reaction unit who recycles, the device include pyrolysis oven, microwave reaction stove, pyrolysis gas separation and purification device, hot air system and solid-state heat carrier system, the solid export of pyrolysis oven communicate in the entry of microwave reaction stove, hot air system's entry with pyrolysis gas separation and purification device's gas outlet is linked together, hot air system's export with microwave reaction stove is linked together, be provided with feed arrangement between pyrolysis oven and the microwave reaction stove, the solid export of pyrolysis oven with feed arrangement is linked together, feed arrangement's one end is linked together through ripple compensator and solid-state heat carrier system, solid-state heat carrier system includes hot-blast carrier pipeline, solid-state heat carrier jar and negative pressure conveyor, through negative pressure conveyor carries high-temperature gas to in the hot-blast carrier pipeline.
Further, the corrugated compensator is respectively connected with the feeding device and the shell of the hot air carrier pipeline through flanges.
Further, a gas outlet of the pyrolysis furnace is communicated with the pyrolysis gas separation and purification device, and the separated and purified high-temperature pyrolysis gas enters the microwave reaction furnace through the hot air system.
Furthermore, the hot air system comprises an air extraction device, a combustion furnace and a hot air pipeline.
Furthermore, a gas outlet at the top of the pyrolysis gas separation and purification device is communicated with an inlet of the combustion furnace through the air extraction device, and a gas outlet of the combustion furnace is communicated with the microwave reaction furnace through the hot air pipeline.
Furthermore, a discharge hole is formed in the bottom of the pyrolysis gas separation and purification device and used for collecting biomass tar.
In one technical scheme, the hot air pipeline is communicated with the hot air carrier pipeline through the negative pressure conveying device.
Further, high-temperature pyrolysis gas is used as a carrier by the negative pressure conveying device to convey a solid heat carrier to the feeding device.
Compared with the prior art, the utility model, have following advantage:
the utility model adopts the pyrolysis gas as the heat carrier, releases the heat in the pyrolysis gas after passing through the combustion furnace, makes full use of the heat of the high-temperature pyrolysis gas, and simultaneously, the microwave-assisted heating ensures that the pyrolysis material in the microwave reaction furnace reacts at a higher temperature, thereby improving the reaction efficiency; conveying a solid heat carrier into a feeding device by taking high-temperature gas as a carrier, fully mixing the preheated solid heat carrier with the pyrolysis material for heat transfer, and uniformly and quickly heating the pyrolysis material by utilizing the high heat conductivity of the solid heat carrier; the utility model provides a pyrolysis gas calorific value that direct heating method exists reduce, can not make full use of, the relatively poor problem of heating medium heat conduction efficiency among the indirect heating method.
Drawings
FIG. 1 is a schematic structural view of a reaction apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a reaction apparatus according to another embodiment of the present invention.
In the figure: 1-pyrolysis furnace, 2-microwave reaction furnace, 3-pyrolysis gas separation and purification device, 4-air extractor, 5-combustion furnace, 6-hot air pipeline, 7-feeding device, 8-ripple compensator, 9-hot air carrier pipeline, 10-solid heat carrier tank and 11-negative pressure conveying device.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
As shown in figures 1 and 2, the reaction device for recycling pyrolysis gas of the utility model comprises a pyrolysis furnace 1, a microwave reaction furnace 2, a pyrolysis gas separation and purification device 3, a hot air system and a solid heat carrier system, the hot air system comprises an air extraction device 4, a combustion furnace 5 and a hot air pipeline 6, a solid outlet of the pyrolysis furnace 1 is communicated with an inlet of the microwave reaction furnace 3, a feeding device 7 is arranged between the pyrolysis furnace 1 and the microwave reaction furnace 3, a solid outlet of the pyrolysis furnace 1 is communicated with the feeding device 7, one end of the feeding device 7 is communicated with a solid heat carrier system through a corrugated compensator 8, the solid heat carrier system comprises a hot air carrier pipeline 9, a solid heat carrier tank 10 and a negative pressure conveying device 11, and high-temperature gas is conveyed into the hot air carrier pipeline 9 through the negative pressure conveying device 11.
The utility model discloses in adopt pyrolysis gas as the heat-carrying agent, pyrolysis gas is through 3 separation and purification backs of pyrolysis gas separation and purification device, under air exhaust device 4's effect, carries high temperature pyrolysis gas to firing burning furnace 5, and the heat in the pyrolysis gas is released after firing burning furnace 5, and the heat of high temperature pyrolysis gas is by make full use of, and microwave assistance generates heat simultaneously, ensures that the interior pyrolysis material of microwave reaction stove reacts under higher temperature, improves reaction efficiency.
The high-temperature gas is used as a carrier, the high-temperature gas is conveyed into a hot air carrier pipeline 9 through the negative pressure conveying device 11, the solid heat carrier in the solid heat carrier tank 10 is conveyed to the feeding device 7 through the hot air carrier pipeline 9, the preheated solid heat carrier and the pyrolysis material are fully mixed for heat transfer, and the high heat conductivity of the solid heat carrier is utilized to realize uniform and rapid heating of the pyrolysis material; the utility model provides a pyrolysis gas calorific value that direct heating method exists reduce, can not make full use of, the relatively poor problem of heating medium heat conduction efficiency among the indirect heating method.
In an embodiment of the present invention, the corrugated compensator 8 is connected to the shell of the feeding device 7 and the hot air carrier pipeline 9 through flanges, respectively, so as to ensure the sealing performance of the feeding process.
The utility model discloses in, the gas outlet of pyrolysis oven 1 communicate in pyrolysis gas separation and purification device 3, the high temperature pyrolysis gas process after the separation and purification the hot air system gets into in the microwave reaction stove 2.
Wherein, the gas outlet at the top of the pyrolysis gas separation and purification device 3 is communicated with the inlet of the combustion furnace 5 through the air extraction device 4, and the gas outlet of the combustion furnace 5 is communicated with the microwave reaction furnace 2 through the hot air pipeline 6.
Wherein, the bottom of the pyrolysis gas separation and purification device 3 is provided with a discharge hole for collecting solid or liquid materials separated from biomass tar and the like.
In another embodiment of the present invention, as shown in fig. 2, the hot air duct 6 is connected to the hot air carrier duct 9 through the negative pressure delivery device 11.
Wherein, the negative pressure conveying device 11 conveys the high-temperature pyrolysis gas as a carrier to the solid heat carrier to enter the feeding device 7.
High-temperature pyrolysis gas is introduced into the hot air carrier pipeline 9 through the negative pressure conveying device 11, so that the pyrolysis material and a solid heat carrier can be uniformly mixed while the material is conveyed, and the pyrolysis material is uniform and rapid.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the technical field of the utility model belongs to the prerequisite of not deviating from the utility model discloses, can also make a plurality of equal substitution or obvious variants, performance or usage are the same moreover, all should regard as belonging to the utility model's scope of protection.
Claims (8)
1. The utility model provides a pyrolysis gas circulation reaction unit who recycles, its characterized in that, the device include pyrolysis oven (1), microwave reaction stove (2), pyrolysis gas separation and purification device (3), air heating system and solid-state heat carrier system, the solid export of pyrolysis oven (1) communicate in the entry of microwave reaction stove (2), air heating system's entry with the gas outlet of pyrolysis gas separation and purification device (3) is linked together, air heating system's export with microwave reaction stove (2) are linked together, be provided with feed arrangement (7) between pyrolysis oven (1) and microwave reaction stove (2), the solid export of pyrolysis oven (1) with feed arrangement (7) are linked together, the one end of feed arrangement (7) is linked together through ripple compensator (8) and solid-state heat carrier system, solid-state heat carrier system includes hot-blast carrier pipeline (9), The device comprises a solid heat carrier tank (10) and a negative pressure conveying device (11), wherein high-temperature gas is conveyed into a hot air carrier pipeline (9) through the negative pressure conveying device (11).
2. The reactor for recycling pyrolysis gas according to claim 1, wherein the corrugated compensator (8) is connected with the shell of the feeding device (7) and the shell of the hot air carrier pipeline (9) through flanges respectively, so that the sealing performance of the feeding process is ensured.
3. The reaction device for recycling pyrolysis gas according to claim 1, wherein a gas outlet of the pyrolysis furnace (1) is communicated with the pyrolysis gas separation and purification device (3), and the separated and purified high-temperature pyrolysis gas enters the microwave reaction furnace (2) through the hot air system.
4. A reactor for recycling pyrolysis gas according to claim 1, wherein the hot air system comprises an air extractor (4), a burner (5) and a hot air pipeline (6).
5. A pyrolysis gas recycling reactor according to claim 4, characterized in that the gas outlet at the top of the pyrolysis gas separation and purification device (3) is communicated with the inlet of the combustion furnace (5) through the gas extraction device (4), and the gas outlet of the combustion furnace (5) is communicated with the microwave reactor (2) through the hot air duct (6).
6. The reactor for recycling pyrolysis gas according to claim 1, wherein the bottom of the pyrolysis gas separation and purification device (3) is provided with a discharge hole.
7. A reactor for the recycling of pyrolysis gas according to claim 4, characterized in that the hot air duct (6) is connected to the hot air carrier duct (9) by the negative pressure delivery device (11).
8. A reactor for recycling pyrolysis gas according to claim 7, characterized in that high-temperature pyrolysis gas is used as a carrier to transport solid heat carrier into the feeding device (7) through the negative pressure transport device (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020741472.3U CN212833623U (en) | 2020-05-07 | 2020-05-07 | Pyrolysis gas recycling reaction device |
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| CN202020741472.3U CN212833623U (en) | 2020-05-07 | 2020-05-07 | Pyrolysis gas recycling reaction device |
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| CN212833623U true CN212833623U (en) | 2021-03-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113509894A (en) * | 2021-07-22 | 2021-10-19 | 中冶赛迪工程技术股份有限公司 | Moving bed gas-solid radial reactor |
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2020
- 2020-05-07 CN CN202020741472.3U patent/CN212833623U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113509894A (en) * | 2021-07-22 | 2021-10-19 | 中冶赛迪工程技术股份有限公司 | Moving bed gas-solid radial reactor |
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