CN210127215U - Microwave pyrolysis system - Google Patents
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- CN210127215U CN210127215U CN201920989535.4U CN201920989535U CN210127215U CN 210127215 U CN210127215 U CN 210127215U CN 201920989535 U CN201920989535 U CN 201920989535U CN 210127215 U CN210127215 U CN 210127215U
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Abstract
The utility model discloses a microwave pyrolysis system, the utility model is provided with microwave generators on a microwave pyrolysis section, an activated carbon section and a graphite section, a tongue-shaped baffle and a dust cover are sequentially arranged in the microwave pyrolysis section from bottom to top, pulverized coal is pyrolyzed in the microwave pyrolysis section, raw coke oven gas and a small amount of dust are generated simultaneously, the raw coke oven gas carries the dust to rise, when passing through a multilayer tongue-shaped baffle arranged in the microwave pyrolysis section, a large amount of dust is blocked and sinks under the action of gravity, a small amount of dust is continuously carried by the raw coke oven gas to rise to the dust cover, the dust is further isolated, the microwave pyrolysis has the characteristics of unique heat conduction rule, the whole internal and external heating is uniform, the heating rate is high, the selective heating is realized, the coal, the oil sludge and the oil shale materials can be pyrolyzed, the pyrolysis efficiency is improved, the yield of pyrolysis products is increased, and the product quality is improved, the content of nitrogen in the obtained raw gas is controlled, and the high-quality raw gas can be obtained.
Description
Technical Field
The utility model belongs to the technical field of the energy chemical industry, concretely relates to microwave pyrolysis system.
Background
The energy structure of China is characterized by rich coal, poor oil and little gas, and the coal resource is used as the leading energy of China in the biggest world of coal production and consumption, and the status of the coal resource as the leading energy of China cannot be swung for a long time. According to statistics, China has found that the coal reserves are 1145 hundred million tons, wherein the medium-low rank coal accounts for 55.15% of the national reserved resource amount. With the wide application of the modern coal mining comprehensive technology, the yield of lump coal is reduced (from 40% to 10-20%) and the yield of pulverized coal is increased (from 60% to 80-90%). The pulverized coal has the problems of easy dust emission, explosion and flammability, large comprehensive utilization difficulty and the like, and the coal pyrolysis technology is considered to be the most effective way for high-efficiency clean utilization of coal.
The low-rank coal has the characteristics of high moisture content, easiness in weathering and spontaneous combustion, difficulty in sorting, difficulty in long-distance transportation and storage and the like, so that the comprehensive utilization of the low-rank coal is greatly limited. At present, the application approach for upgrading and increasing the efficiency of low metamorphic coal is mainly to produce half-angle coal tar and raw coke oven gas by medium and low temperature pyrolysis. In the prior art, no matter the type of the western de kolbe furnace or the continuous vertical furnace, in order to ensure that the coal material in the carbonization chamber has certain air permeability, only lump coal larger than 30mm can be used as a raw material in production, for the pulverized coal with the diameter smaller than 6mm, the furnace pressure is too high due to poor air permeability of a material layer, so that the production cannot be carried out, and meanwhile, when the coal gas generated in the low-temperature pyrolysis process of the low metamorphic coal passes through the material layer, the pulverized coal in the coal material is brought into raw coal gas, so that the subsequent coal tar contains a large amount of pulverized coal, and the subsequent coal tar is not easy to separate and process. During the production process, a large amount of VOC and dust are generated due to the furnace top and water quenching. At present, air is generally adopted as a combustion improver, and an internal heating type pyrolysis technology is adopted, so that the content of nitrogen in the raw coke oven gas exceeds 40%, the calorific value of the raw coke oven gas is greatly reduced, and the utilization of the high added value of the raw coke oven gas is limited. Pulverized coal pyrolysis is a worldwide industrial problem and is widely concerned by domestic and foreign industries.
SUMMERY OF THE UTILITY MODEL
To the technical problem among the prior art, the utility model provides a microwave pyrolysis system, its aim at is difficult for producing the dust at fine coal pyrolysis process, separates the dust many times, reduces raw coke oven gas nitrogen content.
In order to solve the above problems, the utility model discloses a following technical scheme solves:
a microwave pyrolysis system comprises a microwave pyrolysis section, an activated carbon section and a graphite section, wherein a feed inlet of the microwave pyrolysis section is connected with a pulverized coal feeding mechanism, a discharge outlet of the microwave pyrolysis section is connected with a feed inlet of the activated carbon section, a discharge outlet of the activated carbon section is connected with a feed inlet of the graphite section, and a discharge outlet of the graphite section is connected with a graphite storage section; microwave generators are arranged on the microwave pyrolysis section, the activated carbon section and the graphite section, a baffle and a dust cover are sequentially arranged in the microwave pyrolysis section from bottom to top, and a vent seam is formed in the baffle.
Furthermore, a first gas outlet is formed in the top of the microwave pyrolysis section, a high-temperature-resistant dust removal cloth bag is connected to the first gas outlet, and a second gas outlet is formed in the high-temperature-resistant dust removal cloth bag; the bottom of active carbon section is provided with gas inlet, the top of active carbon section is provided with the gaseous export of third, supreme baffle and the dust cover of having set gradually under down in the active carbon section.
Furthermore, a plurality of layers of baffles are arranged in the microwave pyrolysis section, a plurality of vent seams are uniformly distributed on each layer of baffle, and the gap of each vent seam is 1-2 mm; the dust cover is of a net structure, and the diameter of the net holes is smaller than 0.1 mm.
The device further comprises a preheating section and a cooling section, wherein a feed inlet of the preheating section is connected with a pulverized coal feeding mechanism, and a discharge outlet of the preheating section is connected with a feed inlet of the microwave pyrolysis section; the feed inlet of cooling section with the discharge gate of graphite section is connected, the discharge gate of cooling section is connected with graphite storage section.
Furthermore, a first heat exchange tube is arranged on the preheating section, a second heat exchange tube is arranged on the cooling section, and the first heat exchange tube and the second heat exchange tube are communicated through a pipeline to form a circulation loop.
Further, fine coal feeding mechanism includes step belt transport mechanism and elevating system, step belt transport mechanism with elevating system docks, elevating system with the feed inlet butt joint of preheating section, fine coal tray has been placed on step belt transport mechanism's the step.
Further, the fine coal tray includes that the fine coal tray is in with the setting at the bottom of the fine coal tray frame of bottom, the fine coal tray is network structure at the bottom, and the bore of net is less than 1 mm.
Furthermore, a first microwave shielding device is arranged at the feed inlet end of the microwave pyrolysis section, and a second microwave shielding device is arranged at the discharge outlet end of the graphite section.
The use method of the microwave pyrolysis system comprises the following steps: sending pulverized coal to the microwave pyrolysis section, starting a microwave generator arranged on the microwave pyrolysis section, heating at a first temperature to obtain coke breeze, sending the obtained coke breeze to the activated carbon section, starting the microwave generator on the activated carbon section, heating the coke breeze at a second temperature to obtain activated carbon, sending the obtained activated carbon to the graphite section, starting the microwave generator on the graphite section, heating at a third temperature to obtain graphite, and sending the obtained graphite to the graphite storage section.
Further, the first temperature is 650-750 ℃, the second temperature is 900-1000 ℃, and the third temperature is 1500-1800 ℃; and when the microwave generator on the activated carbon section is started, introducing water vapor and/or carbon dioxide gas from the gas inlet.
Compared with the prior art, the utility model discloses following beneficial effect has at least: the utility model discloses all be provided with microwave generator in microwave pyrolysis section, activated carbon section and graphite section, follow supreme baffle and the dust cover of having set gradually down in the microwave pyrolysis section, seted up the vent joint on the baffle, the vent joint is used for being gaseous to pass through, filters the dust. The pulverized coal is pyrolyzed in the microwave pyrolysis section, simultaneously, raw coke oven gas and a small amount of dust are generated, the raw coke oven gas carries the dust to rise, when the pulverized coal passes through a plurality of layers of baffles arranged in the microwave pyrolysis section, the gas continues to rise through the vent seams, a large amount of dust is blocked by the baffles and sinks under the action of gravity, a small amount of dust continues to be carried by the raw coke oven gas to rise to the dust cover, the dust is further isolated and is heated by a microwave generator, the microwave pyrolysis has the characteristics of unique heat conduction rule, uniform heating inside and outside the whole body, high temperature rising speed and selective heating, biomass, sludge, coal, oil sludge, oil shale and other materials can be pyrolyzed, the pyrolysis efficiency is improved, the yield of pyrolysis products is increased, the product quality is improved, the nitrogen content of the obtained raw coke oven gas is controlled. To sum up, the utility model designs a multiple suppression dust produces to and the system that the dust was kept apart, separates the dust many times, makes difficult production dust, reduces the nitrogen content in the raw coke oven gas through microwave heating simultaneously.
Furthermore, a first gas outlet is formed in the top of the microwave pyrolysis section, a high-temperature-resistant dust removal cloth bag is connected to the first gas outlet, a second gas outlet is formed in the high-temperature-resistant dust removal cloth bag, a very small amount of dust continues to enter the high-temperature-resistant dust removal cloth bag through the first gas outlet together with raw gas, the high-temperature-resistant dust removal cloth bag further separates the dust from the raw gas, the raw gas basically free of dust enters the cooling section of the raw gas through the second gas outlet, conventional treatment is carried out, and the dust is better removed.
Furthermore, the clearance of the vent seam is 1-2 mm, and the diameter of the mesh is less than 0.1mm, so that dust can be effectively removed.
Furthermore, a first heat exchange tube is arranged on the preheating section, a second heat exchange tube is arranged on the cooling section, the first heat exchange tube and the second heat exchange tube are communicated through a pipeline to form a circulation loop, cold heat conduction oil enters the second heat exchange tube through a heat conduction oil inlet, the cold heat conduction oil exchanges heat with high-temperature graphite, the heat conduction oil is heated while the graphite is cooled, the hot heat conduction oil enters the first heat exchange tube on the preheating section through a guide tube, cooled pulverized coal is preheated through the first heat exchange tube, the heat conduction oil is cooled simultaneously, the cooled heat conduction oil continues to be recycled through a circulating cooling oil outlet, enters a heat circulation system from a cooling oil inlet, and heat energy is recycled.
Furthermore, a pulverized coal tray is placed on the steps of the step type belt conveying mechanism, the step type belt conveying mechanism is in butt joint with the lifting mechanism, and the lifting mechanism is in butt joint with the feed inlet of the preheating section, so that dust raising can be reduced as far as possible.
Further, the fine coal tray includes at the bottom of the fine coal tray and sets up the fine coal tray frame in the bottom of the fine coal tray, is network structure at the bottom of the fine coal tray, and the bore of net is less than 1mm, is favorable to evenly getting into at the active carbon section gas, and the safe operation of fine coal tray bottom has been guaranteed to the fine coal tray frame.
A using method of a microwave pyrolysis system comprises the steps of conveying pulverized coal to a microwave pyrolysis section, starting a microwave generator arranged on the microwave pyrolysis section, heating at a first temperature to obtain coke breeze, conveying the obtained coke breeze to an activated carbon section, starting the microwave generator on the activated carbon section, heating the coke breeze at a second temperature to obtain activated carbon, conveying the obtained activated carbon to a graphite section, starting the microwave generator on the graphite section, heating at a third temperature to obtain graphite, and conveying the obtained graphite to a graphite storage section. Therefore, the process of continuous feeding and continuous production is adopted, and the pulverized coal can be selectively pyrolyzed and then continuously enters an active carbon working section and a graphite working section. The method can be used for continuous production to obtain high-quality coke breeze, activated carbon and graphene, the whole system is sealed, no VOC and dust is generated, and the method is environment-friendly and energy-saving.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of the system structure of the present invention;
fig. 2 is a schematic structural view (front view) of the microwave thermal stage of the present invention;
fig. 3 is a schematic structural view (left side view) of the microwave thermal stage of the present invention;
FIG. 4 is a schematic structural view of the baffle of the present invention;
fig. 5 is a schematic structural view of the dust cover of the present invention;
fig. 6 is a schematic structural view of the pulverized coal pallet of the present invention.
In the figure: 1-a belt wheel; 2-a second heat exchange tube; 3-a cooling section; 4-graphite section; 5-activated carbon section; 7-microwave pyrolysis section; 8-a dust cover; 81-a guide rail; 82-dust screen; 83-a stretching hook; 9-a microwave generator; 10-a first heat exchange tube; 11-a preheating section; 12-a step belt transport mechanism; 13-a pulverized coal tray; 131-bottom of the pulverized coal tray; 132-a pulverized coal pallet rack; 14-a bucket; 15-pulverized coal pile; 16-a lifting mechanism; 17-a first microwave shield; 18-a baffle plate; 181-ventilating seam; 19-a second microwave screen; 20-high temperature resistant dust removal cloth bag; 21-a first gas outlet; 22-a second gas outlet; 23-a gas inlet; 24-a third gas outlet.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As a preferred embodiment of the present invention, as shown in fig. 1, a microwave pyrolysis system includes a preheating section 11, a microwave pyrolysis section 7, an activated carbon section 5, a graphite section 4, and a cooling section 3, a feed inlet of the preheating section 11 is connected to a pulverized coal feeding mechanism, specifically, the pulverized coal feeding mechanism includes a step belt conveyor 12 and a lifting mechanism 16, a pulverized coal tray 13 is placed on the step belt conveyor 12, a pulverized coal pile 15 is stacked in front of a lower end of the step belt conveyor 12, and pulverized coal is loaded into the pulverized coal tray 13 by using a tool, the present invention preferentially selects a bucket 14, and the bucket 14 is an automatic bucket; as shown in fig. 6 is the fine coal tray, the utility model discloses a fine coal tray 13 includes at the bottom of the fine coal tray 131 with set up the fine coal tray frame 132 in the bottom of the fine coal tray 131 bottom, 131 be network structure at the bottom of the fine coal tray, the bore of net is less than 1mm, is favorable to in 5 gaseous even entering of active carbon section, in order to guarantee the safe operation of fine coal tray bottom, has the fine coal tray frame 132 of certain intensity in addition at the bottom of the fine coal tray.
As shown in fig. 1 and 2, microwave generators 9 are disposed on the microwave pyrolysis section 7, the activated carbon section 5 and the graphite section 4, a first microwave shield 17 is disposed at a feed port end of the microwave pyrolysis section 7, and a second microwave shield 19 is disposed at a discharge port end of the graphite section 4. First gas outlet 21 has been seted up at the top of microwave pyrolysis section 7, is connected with high temperature resistant dust removal sack 20 on the first gas outlet 21, is provided with second gas outlet 22 on the high temperature resistant dust removal sack 20, and supreme a plurality of layers of baffle 18 and the superimposed dust cover 8 of multilayer have set gradually down in the microwave pyrolysis section 7, and a plurality of gaseously through vent gaps 181 that are used for are seted up to the equipartition on the baffle 18. The utility model is to prevent a large amount of dust from generating, the pulverized coal is loaded into the pulverized coal tray 13, and then the pulverized coal tray 13 is moved, so that the pulverized coal is relatively static, and the dust raising is avoided; the pulverized coal is pyrolyzed in the microwave pyrolysis section 7, raw gas and a small amount of dust are generated simultaneously, the raw gas with the dust rises, and when the raw gas passes through the multilayer baffle plate 18 arranged in the microwave pyrolysis section 7, a large amount of dust is blocked and sinks under the action of gravity; a small amount of dust is continuously carried by the raw coke oven gas and rises to the dust cover 8, and the dust is further isolated; and a very small amount of dust and raw coke oven gas continuously enter the high-temperature-resistant dust removal cloth bag 20 through the first gas outlet 21, the high-temperature-resistant dust removal cloth bag 20 further separates the dust from the raw coke oven gas, and the raw coke oven gas which does not contain the dust basically enters a cooling section of the raw coke oven gas through the second gas outlet 22 for conventional treatment. Through foretell isolation dust collector, the dust does not contain in the raw coke oven gas basically, can thoroughly solve the problem that fine coal pyrolysis in-process dust is difficult to separate, and this problem is the technical problem that present fine coal pyrolysis is difficult to overcome, also is the bottleneck problem that influences fine coal pyrolysis industrialization process.
As shown in fig. 1, a gas inlet 23 is arranged at the bottom of the activated carbon section 5, a third gas outlet 24 is arranged at the top of the activated carbon section 5, and a baffle plate 18 and a dust cover 8 are sequentially arranged in the activated carbon section 5 from bottom to top. In the activated carbon section, steam or (and) carbon dioxide gas enters the activated carbon section 5 through the gas inlet 23 to activate coke breeze, and the coke breeze is converted into activated carbon under the condition of high temperature, and the generated waste gas enters the gas recovery section through the third gas outlet 24, and the dust in the waste is removed by using the baffle 18 and the dust cover 8.
As shown in FIGS. 3 and 4, in the preferred embodiment of the present invention, a plurality of vent slits 181 have been opened to the equipartition on the baffle 18, specifically, the shape of vent slit 181 is similar to the tongue shape, that is, the slit similar to the tongue shape is cut out on the baffle 18, and it is ejecting to a terminal surface of baffle 18 to cut the part, and then form vent slit 181, because the particle diameter of fine coal is 3 ~ 6mm, the produced dust is about 1mm generally, design the aperture of vent slit 181 as 1 ~ 2mm, can prevent the loss of fine coal, be favorable to the formation of coke breeze. As shown in fig. 2, the baffle 18 is provided with several layers to provide a better barrier to dust. As shown in fig. 5, in the preferred embodiment of the present invention, the dust cover 8 is made of metal sponge, the dust cover 8 includes a guide rail 81, a dust screen 82 and a stretching hook 83, the dust screen 82 is a net structure, the diameter of the net hole is smaller than 0.1mm, the smaller the hole diameter, the better the dust isolation effect, but, it is easy to be blocked, so it needs to be blown back, to remove the dust adhered to the hole, the guide rail 81 is connected in the microwave pyrolysis section 7, when the dust screen 82 is blocked by the dust, it can be automatically changed, the draw hook of the stretcher is connected with the stretching hook 83 of the dust cover, under the action of the stretcher, the dust screen 82 is pulled out along the guide rail 81, and the new dust screen 82 is installed to the original position of the dust screen along the guide rail 81.
As shown in fig. 1, a first heat exchange tube 10 is arranged on the preheating section 11, a second heat exchange tube 2 is arranged on the cooling section 3, the first heat exchange tube 10 is communicated with the second heat exchange tube 2 through a pipeline, the pipeline is a circulating pipeline, cooled heat transfer oil enters from a cooling oil inlet, flows through the second heat exchange tube 2 for heat exchange, then continuously flows through the first heat exchange tube 10 through the pipeline, and continuously flows through the first heat exchange tube 10 through the circulating pipeline after heat exchange, so that heat exchange is performed in a circulating manner.
The utility model discloses a use method does: the pulverized coal in the pulverized coal pile 15 is lightly filled with a pulverized coal tray 13 by an automatic bucket 14, the pulverized coal tray 13 filled with the pulverized coal is transmitted to an automatic lifting mechanism 16 through a step type belt transmission mechanism 12, and the automatic lifting mechanism 16 lightly lowers the pulverized coal tray to the preheating section 11; in the preheating section, heat conducting oil from the second heat exchange tube 2 is arranged in the first heat exchange tube 10, pulverized coal is preheated through the heat conducting oil from the second heat exchange tube 2, after preheating, the microwave shielding device 17 is started, the pulverized coal tray 3 is sent to the pulverized coal microwave heating stage 7 through the belt wheel 1, the microwave generator 9 is started, the pulverized coal is pyrolyzed at the temperature of 650-750 ℃, and the pyrolyzed pulverized coal becomes powdered coke; under the action of the belt pulley 1, the coke breeze continuously enters the activated carbon section 5, the microwave generator 9 of the section is started, and the coke breeze is further heated into activated carbon at 900-1000 ℃; then, under the action of the belt wheel 1, the pulverized coal tray 3 is conveyed to the graphite section 4, the microwave shielding device 19 is started, the microwave generator 9 of the section is started, activated carbon is further heated to be graphite at 1500-1800 ℃, then the graphite in the graphite section 4 is conveyed to the cooling section 3 through a belt conveyor, heat conduction oil is introduced into the second heat exchange tube 2 from a cooling oil inlet, the graphite is cooled through the second heat exchange tube 2 under the action of the heat conduction oil, and the cooled graphite is conveyed to the graphite storage section through a graphite outlet.
Cold heat conduction oil enters the second heat exchange tube 2 through the heat conduction oil inlet, the cold heat conduction oil exchanges heat with high-temperature graphite, the heat conduction oil is heated while the graphite is cooled, the hot heat conduction oil enters the first heat exchange tube 10 on the preheating section 11 through the guide tube, cooled pulverized coal is preheated through the first heat exchange tube 10, the heat conduction oil is cooled simultaneously, the cooled heat conduction oil continues to be recycled through the circulating cooling oil outlet, and the cooled heat conduction oil enters the heat circulation system from the cooling oil inlet to recycle heat energy.
Certainly, the utility model discloses an among the method of use, according to actual demand, can also only open microwave hot stage 7, open microwave generator 9, the temperature makes fine coal pyrolysis at 650 ~ 750 ℃, and fine coal becomes the coke breeze after the pyrolysis, then directly sends into the coke breeze cooling zone 3, stores after the cooling. Or optionally starting the microwave heating stage 7, starting the microwave generator 9, pyrolyzing the pulverized coal at 650-750 ℃, making the pyrolyzed pulverized coal into coke breeze, making the coke breeze enter the activated carbon section 5, starting the microwave generator 9 at the section, heating the coke breeze into activated carbon at 900-1000 ℃, then directly sending the coke breeze into the cooling section 3, and storing after cooling. To sum up, the utility model discloses a continuous feed, the technology of continuous production, optionally after fine coal pyrolysis, continue to get into active carbon workshop section, graphite workshop section.
Finally, it should be noted that: the above embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A microwave pyrolysis system, characterized by: the device comprises a microwave pyrolysis section (7), an activated carbon section (5) and a graphite section (4), wherein a feed inlet of the microwave pyrolysis section (7) is connected with a pulverized coal feeding mechanism, a discharge outlet of the microwave pyrolysis section (7) is connected with a feed inlet of the activated carbon section (5), a discharge outlet of the activated carbon section (5) is connected with a feed inlet of the graphite section (4), and a discharge outlet of the graphite section (4) is connected with a graphite storage section; microwave generator (9) are all provided with on microwave pyrolysis section (7), activated carbon section (5) and graphite section (4), supreme baffle (18) and dust cover (8) have set gradually down in microwave pyrolysis section (7), vent joint (181) have been seted up on baffle (18).
2. A microwave pyrolysis system according to claim 1, wherein: a first gas outlet (21) is formed in the top of the microwave pyrolysis section (7), a high-temperature-resistant dust removal cloth bag (20) is connected to the first gas outlet (21), and a second gas outlet (22) is formed in the high-temperature-resistant dust removal cloth bag (20); the bottom of active carbon section (5) is provided with gas inlet (23), the top of active carbon section (5) is provided with third gas outlet (24), supreme baffle (18) and dust cover (8) have set gradually down in active carbon section (5).
3. A microwave pyrolysis system according to claim 1, wherein: a plurality of layers of baffles (18) are arranged in the microwave pyrolysis section (7), a plurality of vent seams (181) are uniformly distributed on each layer of baffle (18), and the gap of each vent seam (181) is 1-2 mm; the dust cover (8) is of a net structure, and the diameter of the net hole is smaller than 0.1 mm.
4. A microwave pyrolysis system according to claim 1, wherein: the device is characterized by also comprising a preheating section (11) and a cooling section (3), wherein a feed inlet of the preheating section (11) is connected with a pulverized coal feeding mechanism, and a discharge outlet of the preheating section (11) is connected with a feed inlet of the microwave pyrolysis section (7); the feed inlet of cooling section (3) with the discharge gate of graphite section (4) is connected, the discharge gate of cooling section (3) is connected with the graphite storage section.
5. A microwave pyrolysis system according to claim 4, wherein: the preheating section (11) is provided with a first heat exchange tube (10), the cooling section (3) is provided with a second heat exchange tube (2), and the first heat exchange tube (10) is communicated with the second heat exchange tube (2) through a pipeline to form a circulation loop.
6. A microwave pyrolysis system according to claim 4, wherein: the pulverized coal feeding mechanism comprises a step belt conveying mechanism (12) and a lifting mechanism (16), the step belt conveying mechanism (12) is in butt joint with the lifting mechanism (16), the lifting mechanism (16) is in butt joint with a feeding hole of the preheating section (11), and a pulverized coal tray (13) is placed on a step of the step belt conveying mechanism (12).
7. A microwave pyrolysis system according to claim 6, wherein: pulverized coal tray (13) are in including pulverized coal tray end (131) and setting pulverized coal tray frame (132) of pulverized coal tray end (131) bottom, pulverized coal tray end (131) is network structure, and the bore of net is less than 1 mm.
8. A microwave pyrolysis system according to claim 1, wherein: the feeding port end of the microwave pyrolysis section (7) is provided with a first microwave shielding device (17), and the discharging port end of the graphite section (4) is provided with a second microwave shielding device (19).
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| CN201920989535.4U CN210127215U (en) | 2019-06-27 | 2019-06-27 | Microwave pyrolysis system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110157458A (en) * | 2019-06-27 | 2019-08-23 | 榆林学院 | A kind of microwave-heating system and its application method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110157458A (en) * | 2019-06-27 | 2019-08-23 | 榆林学院 | A kind of microwave-heating system and its application method |
| CN110157458B (en) * | 2019-06-27 | 2024-03-26 | 榆林学院 | Microwave pyrolysis system and application method thereof |
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