CN110157458A - A kind of microwave-heating system and its application method - Google Patents
A kind of microwave-heating system and its application method Download PDFInfo
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- CN110157458A CN110157458A CN201910569006.3A CN201910569006A CN110157458A CN 110157458 A CN110157458 A CN 110157458A CN 201910569006 A CN201910569006 A CN 201910569006A CN 110157458 A CN110157458 A CN 110157458A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000003245 coal Substances 0.000 claims abstract description 107
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 104
- 239000000428 dust Substances 0.000 claims abstract description 65
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 55
- 239000010439 graphite Substances 0.000 claims abstract description 55
- 239000000571 coke Substances 0.000 claims abstract description 52
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 49
- 238000000197 pyrolysis Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims description 35
- 230000007246 mechanism Effects 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000003028 elevating effect Effects 0.000 claims description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 239000003610 charcoal Substances 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims 2
- 238000003032 molecular docking Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 64
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 abstract description 3
- 239000004058 oil shale Substances 0.000 abstract description 2
- 238000005979 thermal decomposition reaction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000011280 coal tar Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002365 multiple layer Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B43/00—Preventing or removing incrustations
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/02—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with stationary charge
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
Abstract
The invention discloses a kind of microwave-heating system and its application methods, the present invention is in microwave-heating section, microwave generator is provided in active carbon section and graphite section, it is disposed with baffle and dust cover from bottom to up in microwave-heating section, fine coal is pyrolyzed in microwave-heating section, raw coke oven gas and a small amount of dust are produced simultaneously, raw coke oven gas carries dust and rises, through setting in microwave-heating section multilayer baffle when, a large amount of dust is blocked and sinks under gravity, a small amount of dust continuation is carried up by raw coke oven gas to dust cover, dust is further isolated, it is heated by microwave generator, microwave-heating has unique thermal conductivity law, homogeneous heating inside and outside entirety, heating rate is fast, the characteristics of selection heating, it can be to coal, greasy filth and oil shale material are pyrolyzed, improve pyrolysis efficiency, increase thermal decomposition product yield And Improving The Quality of Products, obtained raw coke oven gas nitrogen content are under control, and the raw coke oven gas of high quality can be obtained.
Description
Technical field
The invention belongs to field of energy and chemical technologys, and in particular to a kind of microwave-heating system and its application method.
Background technique
The energy resource structure feature in China is rich coal, oil-poor, few gas, big as maximum coal production in the world and consumption
State, within the quite a long time, coal resources are unshakable as the status that China dominates the energy.According to statistics, I
It is 114,500,000,000 tons that coal reserves has been verified by state, wherein middle low-order coal accounts for the 55.15% of national reserves.With modernization
Mine it is polytechnic be widely used so that the ratio of lump coal decline (dropping to 10~20% by current 40%), fine coal yield
It increases (rising to 80~90% by current 60%).Fine coal, which exists, is easy to fugitive dust, explosive, inflammable, and comprehensive utilization difficulty is big etc.
Problem, pyrolysis of coal technology are considered as the maximally efficient approach of coal high-efficiency clean utilization.
Since low-order coal has moisture content high, be easy weathering spontaneous combustion, be difficult to sort, be not easy to transport for long-distance and store etc. it is special
Point, so that its comprehensive utilization is very limited.Currently, for the predominantly middle Low Temperature Thermal of low-disintegration coal upgrading synergy application approach
Solution production half-angle, coal tar and raw coke oven gas.In the prior art, whether the West Germany Kao Baisi type of furnace or serialization upright furnace
Type can only all use be greater than the lump coal of 30mm as raw material in production to make in carbonization chamber coal charge have certain gas permeability,
It is less than the fine coal of 6mm for diameter, causes furnace pressure excessively high due to bed permeability difference, cause to produce, meanwhile, it is low rotten
The coal gas generated in Low Temperature Pyrolysis Process in coal takes the fine coal in coal charge in raw coke oven gas to, when by the bed of material so that subsequent
Coal tar in contain a large amount of fine coal, be not readily separated processing.In production process, due to furnace roof and water quenching, generate
A large amount of VOC and dust.Currently, generalling use air as combustion adjuvant, internal heat type pyrolytic technique, so that nitrogen in raw coke oven gas
Content is more than 40%, greatly reduces the calorific value of raw coke oven gas, limits the utilization of raw coke oven gas high added value.Pulverized coal pyrolysis is the world
Property industry problems, by domestic and international industry circle extensive concern.
Summary of the invention
For in the prior art the technical issues of, the present invention provides a kind of microwave-heating system and its application method,
Purpose is to be not likely to produce dust, separating for several times dust, reduction raw coke oven gas nitrogen content in pulverized coal pyrolysis process.
To solve the above problems, the present invention is resolved by the following technical programs:
A kind of microwave-heating system, including microwave-heating section, active carbon section and graphite section, the charging of the microwave-heating section
Mouth is connect with fine coal feeding mechanism, and the discharge port of the microwave-heating section is connect with the feed inlet of the active carbon section, the work
The discharge port of property charcoal section is connect with the feed inlet of the graphite section, and the discharge port of the graphite section is connect with graphite memory paragraph；Institute
State and be provided with microwave generator in microwave-heating section, active carbon section and graphite section, in the microwave-heating section from bottom to up according to
It is secondary to be provided with baffle and dust cover, louver is offered on the baffle.
Further, first gas outlet is offered at the top of the microwave-heating section, is connected in the first gas outlet
It is connected to high temperature resistant dust-removal cloth-bag, second gas outlet is provided on the high temperature resistant dust-removal cloth-bag；The bottom of the active carbon section
Be provided with gas access, third gas outlet be provided at the top of the active carbon section, in the active carbon section from bottom to up according to
It is secondary to be provided with baffle and dust cover.
Further, it is provided with several layers baffle in the microwave-heating section, is uniformly offered on every layer of baffle several logical
Air cleft, the gap of each louver are 1~2mm；The dust cover is reticular structure, and the diameter of mesh is less than 0.1mm.
It further, further include preheating section and cooling section, the feed inlet of the preheating section is connect with fine coal feeding mechanism, institute
The discharge port for stating preheating section is connect with the feed inlet of the microwave-heating section；The feed inlet of the cooling section and the graphite section
Discharge port connection, the discharge port of the cooling section are connect with graphite memory paragraph.
Further, it is provided with the first heat exchanger tube on the preheating section, the second heat exchanger tube, institute are provided on the cooling section
It states the first heat exchanger tube and is connected to form circulation loop by pipeline with second heat exchanger tube.
Further, the fine coal feeding mechanism includes step belt transmission agency and elevating mechanism, the step
Belt transmission agency is docked with the elevating mechanism, and the elevating mechanism is docked with the feed inlet of the preheating section, the step
Fine coal pallet is placed on the step of formula belt transmission agency.
Further, the fine coal pallet includes fine coal tray bottom and the fine coal support that fine coal tray bottom bottom is arranged in
Plate rail, the fine coal tray bottom are reticular structure, and the bore of grid is less than 1mm.
Further, the feed inlet end of the microwave-heating section is provided with the first microwave screen device, and the graphite section goes out
Material mouth end is provided with the second microwave screen device.
A kind of application method of microwave-heating system are as follows: fine coal is sent to the microwave-heating section, opens and is arranged described
Microwave generator in microwave-heating section, heating obtains coke breeze at the first temperature, and obtained coke breeze is sent to the active carbon
Section, opens the microwave generator in the active carbon section, drops coke breeze at the second temperature and heats to obtain active carbon, the work that will be obtained
Property charcoal send to the graphite section, open the microwave generator in the graphite section, heating obtains graphite at a temperature of third, will
To graphite send to graphite memory paragraph.
Further, first temperature is 650~750 DEG C, and the second temperature is 900~1000 DEG C, the third
Temperature is 1500~1800 DEG C；When opening the microwave generator in the active carbon section, vapor is passed through from the gas access
And/or carbon dioxide gas.
Compared with prior art, the present invention at least has the advantages that the present invention in microwave-heating section, active carbon section
It is provided with microwave generator in graphite section, is disposed with baffle and dust cover from bottom to up in microwave-heating section, is kept off
Louver is offered on plate, louver is passed through with then gas, filters dust.Fine coal is pyrolyzed in microwave-heating section, is generated simultaneously
Raw coke oven gas and a small amount of dust, raw coke oven gas carry dust and rise, through setting in microwave-heating section multilayer baffle when, gas
Body continues to rise by louver, and a large amount of dust is blocked and sunk under gravity by baffle, and a small amount of dust continues
It is carried up by raw coke oven gas to dust cover, dust is further isolated, and is heated by microwave generator, and microwave-heating has uniqueness
Thermal conductivity law, the characteristics of homogeneous heating, heating rate be fast inside and outside entirety, selection heating, can to biomass, sludge, coal,
The materials such as greasy filth and oil shale are pyrolyzed, and are improved pyrolysis efficiency, are increased thermal decomposition product yield and Improving The Quality of Products, obtain
Raw coke oven gas nitrogen content is under control, and the raw coke oven gas of high quality can be obtained.To sum up, the present invention devises the production of multiple inhibiting dust
The system of raw and dust isolation, separating for several times dust so that being not likely to produce dust, while reducing waste coal by microwave heating
Nitrogen content in gas.
Further, first gas outlet is offered at the top of microwave-heating section, first gas is connected with resistance to height in outlet
Warm dust-removal cloth-bag, is provided with second gas outlet on high temperature resistant dust-removal cloth-bag, and minimal amount of dust continues with raw coke oven gas by the
One gas vent enters high temperature resistant dust-removal cloth-bag, and dust is further separated with raw coke oven gas, is substantially free of by high temperature resistant dust-removal cloth-bag
The raw coke oven gas of dust enters the cooling section of raw coke oven gas by second gas outlet, carries out conventional treatment, preferably eliminates dust.
Further, the gap of louver is 1~2mm, and the diameter of mesh is less than 0.1mm, being capable of effective dedusting.
Further, it is provided with the first heat exchanger tube on preheating section, the second heat exchanger tube, the first heat exchanger tube are provided on cooling section
It is connected to form circulation loop by pipeline with second heat exchanger tube, cold conduction oil enters the second heat exchange by heat conducting oil inlet
The graphite of pipe, cold conduction oil and high temperature carries out heat exchange, and while graphite is cooling, conduction oil is heated, hot conduction oil
Enter the first heat exchanger tube on preheating section by conduit, is preheated cooling fine coal by the first heat exchanger tube, conduction oil while quilt
Cooling, cooling conduction oil continues cycling through utilization by circulating cooling oil export, enters heat circulating system from cooling oil-in, will
Heat energy recycling.
Further, it is placed with fine coal pallet on the step of step belt transmission agency, is passed using step belt
It send that mechanism is docked with elevating mechanism and elevating mechanism is docked with the feed inlet of preheating section, fugitive dust can be reduced as far as.
Further, fine coal pallet includes fine coal tray bottom and the fine coal tray rack that fine coal tray bottom bottom is arranged in, powder
Coal tray bottom is reticular structure, and the bore of grid is less than 1mm, is conducive in active carbon section gas even into fine coal pallet
Frame ensure that the safe operation of fine coal tray bottom.
Fine coal is sent to microwave-heating section, opens and be arranged in microwave-heating section by a kind of application method of microwave-heating system
On microwave generator, heating obtains coke breeze at the first temperature, and obtained coke breeze is sent to active carbon section, opens active carbon section
On microwave generator, drop coke breeze at the second temperature and heat to obtain active carbon, obtained active carbon is sent to graphite section, is opened
Microwave generator in graphite section, heating obtains graphite at a temperature of third, and obtained graphite is sent to graphite memory paragraph.It can be seen that
Using continuous feed, quantity-produced technique goes successively to active carbon workshop section, graphite optionally after pulverized coal pyrolysis
Workshop section.Can continuous production, obtain the coke breeze, active carbon, graphene of high-quality, whole system sealing, without the production of VOC and dust
It is raw, environmental protection and energy saving.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate more clearly of the technical solution in the specific embodiment of the invention, specific embodiment will be retouched below
Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is some realities of the invention
Mode is applied, it for those of ordinary skill in the art, without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is system structure diagram of the invention；
Fig. 2 is the structural schematic diagram (main view) in microwave thermal stage of the present invention；
Fig. 3 is the structural schematic diagram (left view) in microwave thermal stage of the present invention；
Fig. 4 is the structural schematic diagram of baffle of the present invention；
Fig. 5 is the structural schematic diagram of dust cover of the present invention；
Fig. 6 is the structural schematic diagram of fine coal pallet of the present invention.
In figure: 1- belt wheel；The second heat exchanger tube of 2-；3- cooling section；4- graphite section；5- active carbon section；7- microwave-heating section；8-
Dust cover；81- guide rail；82- Air Filter；83- stretches hook；9- microwave generator；The first heat exchanger tube of 10-；11- preheating section；12- platform
Stepwise belt transmission agency；13- fine coal pallet；131- fine coal tray bottom；132- fine coal tray rack；14- scraper bowl；15- fine coal heap；
16- elevating mechanism；The first microwave screen device of 17-；18- baffle；181- louver；The second microwave screen device of 19-；20- high temperature resistant
Dust-removal cloth-bag；The outlet of 21- first gas；The outlet of 22- second gas；The gas access 23-；The outlet of 24- third gas.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
As a certain preferred embodiment of the invention, as shown in Figure 1, a kind of microwave-heating system, including it is preheating section 11, micro-
The feed inlet of wave pyrolysis section 7, active carbon section 5, graphite section 4 and cooling section 3, preheating section 11 is connect with fine coal feeding mechanism, specifically
, fine coal feeding mechanism includes a step belt transmission agency 12 and an elevating mechanism 16, step belt conveyor
It is placed with fine coal pallet 13 on structure 12, fine coal heap 15 is stacked with before the low side of step belt transmission agency 12, utilizes tool
Fine coal is put into fine coal pallet 13, the present invention preferentially selects scraper bowl 14, and scraper bowl 14 is automatic scraper bowl；It is illustrated in figure 6 powder
Coal pallet, fine coal pallet 13 of the invention include fine coal tray bottom 131 and the fine coal pallet that 131 bottom of fine coal tray bottom is arranged in
Frame 132, fine coal tray bottom 131 are reticular structure, and the bore of grid is less than 1mm, be conducive to 5 gas of active carbon section it is uniform into
Enter, in order to guarantee the safe operation of fine coal tray bottom, the fine coal tray rack 132 for having some strength is added in fine coal tray bottom.
Step belt transmission agency 12 is high-end to be docked with elevating mechanism 16, and the present invention preferentially selects escalator, is risen
Descending mechanism 16 is docked with the feed inlet of preheating section 11.The discharge port of preheating section 11 is connect with the feed inlet of microwave-heating section 7, microwave
The discharge port of pyrolysis section 7 is connect with the feed inlet of active carbon section 5, and the discharge port of active carbon section 5 and the feed inlet of graphite section 4 connect
It connects, the discharge port of graphite section 4 is connect with the feed inlet of cooling section 3, and the discharge port of cooling section 3 is connect with graphite memory paragraph.Specifically
, between the discharge port of preheating section 11 and the feed inlet of microwave-heating section 7, the discharge port of microwave-heating section 7 and active carbon section 5
Between feed inlet, between the discharge port of active carbon section 5 and the feed inlet of graphite section 4, the discharge port of graphite section 4 and cooling section 3
Fine coal between feed inlet and between the discharge port and graphite memory paragraph of black cooling section 3 is transported by flat belt conveyer
, as shown in Figure 1, flat belt conveyor is continuously transported fine coal under the drive of belt wheel 1.
As depicted in figs. 1 and 2, it is provided with microwave generator 9 in microwave-heating section 7, active carbon section 5 and graphite section 4,
And the feed inlet end of microwave-heating section 7 is provided with the first microwave screen device 17, it is micro- that the discharge port end of graphite section 4 is provided with second
Wave screen covers device 19.The top of microwave-heating section 7 offers first gas outlet 21, is connected with high temperature resistant in first gas outlet 21
Dust-removal cloth-bag 20 is provided with second gas outlet 22 on high temperature resistant dust-removal cloth-bag 20, successively sets from bottom to up in microwave-heating section 7
It is equipped with the dust cover 8 of several layers baffle 18 and multiple-layer stacked, several ventilations passed through for gas are uniformly offered on baffle 18
Seam 181.The present invention is to prevent the generation of a large amount of dust, is packed into fine coal by fine coal pallet 13, then moves fine coal pallet 13, make
It is opposing stationary to obtain fine coal, avoids fugitive dust；Fine coal is pyrolyzed in microwave-heating section 7, while producing raw coke oven gas and a small amount of dust,
Raw coke oven gas carry dust rise, through setting in microwave-heating section 7 multilayer baffle 18 when, a large amount of dust be blocked and
Sink under the action of gravity；A small amount of dust continuation is carried up by raw coke oven gas to dust cover 8, and dust is further isolated；Also
There is minimal amount of dust to continue to enter high temperature resistant dust-removal cloth-bag 20, high temperature resistant dust removing cloth by first gas outlet 21 with raw coke oven gas
Bag 20 further separates dust with raw coke oven gas, and the raw coke oven gas for being substantially free of dust enters raw coke oven gas by second gas outlet 22
Cooling section, carry out conventional treatment.By above-mentioned isolation dust-extraction unit, it is substantially free of dust in raw coke oven gas, can thoroughly be solved
Certainly dust is difficult to the problem of separating during pulverized coal pyrolysis, which is that current pulverized coal pyrolysis is difficult to the technical issues of overcoming,
It is the bottleneck problem for influencing pulverized coal pyrolysis process of industrialization.
As shown in Figure 1, the bottom of active carbon section 5 is provided with gas access 23, the top of active carbon section 5 is provided with third gas
Body exports 24, is disposed with baffle 18 and dust cover 8 from bottom to up in active carbon section 5.In active carbon section, vapor or (and)
Carbon dioxide gas enters active carbon section 5 by gas access 23, coke breeze is activated, and in the condition of high temperature, coke breeze is converted
Exhaust gas for active carbon, generation enters gas exhausting section by third gas outlet 24, using baffle 18 and dust cover 8 to discarded
In dust be purged.
As shown in Figure 3 and Figure 4, several louvers 181 are uniformly offered in the preferred embodiment of the present invention, on baffle 18,
Specifically, the shape of louver 181 is similar to ligulate, i.e., the gap similar to ligulate shape is cut on baffle 18, and will cut
It cuts part to eject to an end face of baffle 18, and then forms louver 181, it is generated because the partial size of fine coal is 3~6mm
Dust is usually 1mm or so, is 1~2mm by the aperture design of louver 181, can prevent the loss of fine coal, be conducive to coke breeze
Formation.As shown in Fig. 2, baffle 18 is provided with several layers, it can preferably stop dust.As shown in figure 5, of the invention is preferred
In embodiment, dust cover 8 selects the dust cover of metal sponge class, and dust cover 8 is including guide rail 81, Air Filter 82 and stretches hook 83,
Air Filter 82 is reticular structure, and the diameter of mesh is less than 0.1mm, and aperture is smaller, better to the isolation effect of dust, still, together
When be also easy to be blocked, therefore need blowback, to remove the dust for being adhered to duct, guide rail 81 is connected in microwave-heating section 7, when
It when Air Filter 82 is blocked by dust, can replace automatically, the drag hook of stretching-machine is connected with the stretching hook 83 of dust cover, in stretching-machine
Under the action of, Air Filter 82 is pulled out along guide rail 81, and new Air Filter 82 is mounted to Air Filter along guide rail 81 simultaneously
Position originally.
As shown in Figure 1, being provided with the first heat exchanger tube 10 on preheating section 11, the second heat exchanger tube is provided on cooling section 3
2, it is connected between the first heat exchanger tube 10 and the second heat exchanger tube 2 by pipeline, and pipeline is circulating line, cooling conduction oil is from cold
But oil-in enters, and after flowing through the progress heat exchange of the second heat exchanger tube 2, continues flow through the first heat exchanger tube 10 by pipeline, carries out
It after heat exchange, and continues through circulating line and flows through the first heat exchanger tube 10, so circulation carries out heat exchange.
Application method of the invention are as follows: the fine coal in fine coal heap 15 is lightly filled into fine coal pallet with automatic scraper bowl 14
13, by step belt transmission agency 12, the fine coal pallet 13 equipped with fine coal is transmitted on automatic hoisting mechanism 16, automatically
Fine coal disk is lightly down to preheating section 11 by elevating mechanism 16；Have in preheating section, the first heat exchanger tube 10 from the second heat exchanger tube 2
Conduction oil fine coal is preheated by the conduction oil in the second heat exchanger tube 2, after preheating, open microwave screen device 17, lead to
It crosses belt wheel 1 and fine coal pallet 3 is sent into the fine coal microwave thermal stage 7, open microwave generator 9, temperature makes fine coal at 650~750 DEG C
Pyrolysis, fine coal becomes coke breeze after pyrolysis；Coke breeze continues under the action of belt wheel 1, into active carbon section 5, opens the microwave of this section
Coke breeze is further heated to be active carbon at 900~1000 DEG C by generator 9；Then again under the action of belt wheel 1, by fine coal
Pallet 3 is sent to graphite section 4, is opened microwave screen device 19, the microwave generator 9 of this section is opened, at 1500~1800 DEG C, into one
Active carbon thermal change is graphite by step, then send the graphite in graphite section 4 to cooling section 3 by belt feeder, from cooling oil-in
To conduction oil is passed through in the second heat exchanger tube 2, under the action of conduction oil, graphite is cooled down by the second heat exchanger tube 2, it is after cooling
Graphite is exported by graphite and is sent into graphite storage section.
Cold conduction oil enters the second heat exchanger tube 2, the graphite progress heat of cold conduction oil and high temperature by heat conducting oil inlet
Exchange, while graphite is cooling, conduction oil is heated, and hot conduction oil enters the first heat exchange on preheating section 11 by conduit
Pipe 10 is preheated cooling fine coal by the first heat exchanger tube 10, and conduction oil is cooled simultaneously, and cooling conduction oil is cold by recycling
But oil export continues cycling through utilization, enters heat circulating system from cooling oil-in, by heat energy recycling.
Certainly, in application method of the invention, according to actual needs, it can also only open the microwave thermal stage 7, open microwave
Generator 9, temperature make pulverized coal pyrolysis at 650~750 DEG C, and fine coal becomes coke breeze after pyrolysis, is then directly sent into coke breeze coke breeze
Cooling section 3 is stored after cooling.Or be also an option that and open the microwave thermal stage 7, microwave generator 9 is opened, temperature exists
650~750 DEG C make pulverized coal pyrolysis, and fine coal becomes coke breeze after pyrolysis, and coke breeze enters active carbon section 5, and the microwave for opening this section occurs
Coke breeze is heated to be active carbon at 900~1000 DEG C by device 9, and coke breeze coke breeze is directly then sent into cooling section 3, and cooling is laggard
Row storage.To sum up, present invention employs continuous feed, quantity-produced technique, optionally after pulverized coal pyrolysis, after
It is continuous to enter active carbon workshop section, graphite workshop section.
Finally, it should be noted that above embodiments, only a specific embodiment of the invention, to illustrate skill of the invention
Art scheme, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to the present invention into
Go detailed description, those skilled in the art should understand that: anyone skilled in the art is at this
It invents in the technical scope disclosed, can still modify or can be thought easily to technical solution documented by previous embodiment
To variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make corresponding
The essence of technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection scope of the present invention
Within.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of microwave-heating system, it is characterised in that: including microwave-heating section (7), active carbon section (5) and graphite section (4), institute
The feed inlet for stating microwave-heating section (7) is connect with fine coal feeding mechanism, the discharge port of the microwave-heating section (7) and the activity
The feed inlet of charcoal section (5) connects, and the discharge port of the active carbon section (5) is connect with the feed inlet of the graphite section (4), the stone
The discharge port of black section (4) is connect with graphite memory paragraph；In the microwave-heating section (7), active carbon section (5) and graphite section (4)
It is provided with microwave generator (9), is disposed with baffle (18) and dust cover (8) from bottom to up in the microwave-heating section (7),
Louver (181) are offered on the baffle (18).
2. a kind of microwave-heating system according to claim 1, it is characterised in that: the top of the microwave-heating section (7)
First gas outlet (21) is offered, is connected with high temperature resistant dust-removal cloth-bag (20) on the first gas outlet (21), it is described resistance to
Second gas outlet (22) is provided on high-temperature dust removal cloth bag (20)；The bottom of the active carbon section (5) is provided with gas access
(23), third gas outlet (24) is provided at the top of the active carbon section (5), in the active carbon section (5) from bottom to up according to
It is secondary to be provided with baffle (18) and dust cover (8).
3. a kind of microwave-heating system according to claim 1, it is characterised in that: setting in the microwave-heating section (7)
Have several layers baffle (18), is uniformly offered several louvers (181) on every layer of baffle (18), each louver (181)
Gap be 1~2mm；The dust cover (8) is reticular structure, and the diameter of mesh is less than 0.1mm.
4. a kind of microwave-heating system according to claim 1, it is characterised in that: further include preheating section (11) and cooling section
(3), the feed inlet of the preheating section (11) is connect with fine coal feeding mechanism, the discharge port and the microwave of the preheating section (11)
The feed inlet of pyrolysis section (7) connects；The feed inlet of the cooling section (3) is connect with the discharge port of the graphite section (4), described cold
But the discharge port of section (3) is connect with graphite memory paragraph.
5. a kind of microwave-heating system according to claim 4, it is characterised in that: be provided on the preheating section (11)
One heat exchanger tube (10) is provided with the second heat exchanger tube (2) on the cooling section (3), first heat exchanger tube (10) and described second
Heat exchanger tube (2) is connected to form circulation loop by pipeline.
6. a kind of microwave-heating system according to claim 4, it is characterised in that: the fine coal feeding mechanism includes step
Formula belt transmission agency (12) and elevating mechanism (16), the step belt transmission agency (12) and the elevating mechanism (16)
Docking, the elevating mechanism (16) are docked with the feed inlet of the preheating section (11), the step belt transmission agency (12)
Step on be placed with fine coal pallet (13).
7. a kind of microwave-heating system according to claim 6, it is characterised in that: the fine coal pallet (13) includes fine coal
The fine coal tray rack (132) of tray bottom (131) and setting in fine coal tray bottom (131) bottom, the fine coal tray bottom
It (131) is reticular structure, the bore of grid is less than 1mm.
8. a kind of microwave-heating system according to claim 1, it is characterised in that: the charging of the microwave-heating section (7)
Mouth end is provided with the first microwave screen device (17), and the discharge port end of the graphite section (4) is provided with the second microwave screen device (19).
9. the application method of described in any item a kind of microwave-heating systems according to claim 1~8, it is characterised in that: by powder
Coal is sent to the microwave-heating section (7), opens the microwave generator (9) being arranged on the microwave-heating section (7), in the first temperature
The lower heating of degree obtains coke breeze, and obtained coke breeze is sent to the active carbon section (5), the microwave on the active carbon section (5) is opened
Generator (9) drops coke breeze at the second temperature and heats to obtain active carbon, obtained active carbon is sent to the graphite section (4), is opened
The microwave generator (9) on the graphite section (4) is opened, heating obtains graphite at a temperature of third, and obtained graphite is sent to stone
Black memory paragraph.
10. a kind of application method of microwave-heating system according to claim 9, it is characterised in that: first temperature
It is 650~750 DEG C, the second temperature is 900~1000 DEG C, and the third temperature is 1500~1800 DEG C；Open the work
When microwave generator (9) in property charcoal section (5), vapor and/or carbon dioxide gas are passed through from the gas access (23).
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| CN111517310A (en) * | 2020-04-26 | 2020-08-11 | 山东沃烯新材料科技有限公司 | Popped device of continuous microwave of graphite alkene |
| CN115505414A (en) * | 2021-06-07 | 2022-12-23 | 中国石油化工股份有限公司 | Oil production system and method of small-particle oil shale |
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| CN110157458B (en) | 2024-03-26 |
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