CN103131476B

CN103131476B - A kind of microwave manufacturing technique method of coal gas and device

Info

Publication number: CN103131476B
Application number: CN201110390424.XA
Authority: CN
Inventors: 陈玉麟; 陈玉麒
Original assignee: SHANGHAI MAIFENG MICROWAVE EQUIPMENT CO Ltd
Current assignee: SHANGHAI MAIFENG MICROWAVE EQUIPMENT CO Ltd
Priority date: 2011-11-30
Filing date: 2011-11-30
Publication date: 2017-03-15
Anticipated expiration: 2031-11-30
Also published as: CN103131476A

Abstract

The invention discloses the method and apparatus that a kind of microwave method produces coal gas, the method that the method is combined with microwave technology using traditional coal gas technology：Coal dust, air, water vapour and CO are added to microwave gas producer₂Gas, generates primary coal gas in generator, and removing dust process is converted to can coal gas；The hot environment of coal gas reaction zone therein keeps constant, and its heat energy is coal-fired by burner hearth and microwave heating ceramic thermal insulation intracavity carborundum is obtained.This device includes：The microwave gas producer that is sequentially connected, airway, cyclone dust extractor, gas-pipe line, return skirt；Wherein, microwave coal gas occurs to include from device body of heater：Burner hearth, reaction zone, inducing QI area, microwave heating system, have air intake, coal powder entrance, steam entry, CO on furnace wall₂Entrance, air guide port, return and draw mouth, there is upper and lower metal partion (metp) reaction zone, interior has aluminium oxide ceramic thermal insulation chamber and silicon carbide structure part therein.This method can significantly improve coal gas aerogenesis stability, efficiency and quality.

Description

A kind of microwave manufacturing technique method of coal gas and device

Technical field

A kind of a kind of the present invention relates to Gas Production technique and device, more particularly to the process of microwave method production coal gas And device.

Technical background

Coal gas is as a kind of clean energy resource fuel, more clean and efficient than fire coal, its production method and technological progress just by Step is improved, and its dominant response formula is as follows：

O₂+C→2CO₂+Q (1)

CO₂+C→2CO-Q (2)

H₂O+C→H₂+CO-Q (3)

2H₂O+C→CO₂+2H₂-Q (4)

Wherein：

O₂：Represent oxygen

C：Represent carbon

CO₂：Represent carbon dioxide

H₂O：Represent water

-Q：Represent and absorb heat

+Q：Represent and release heat

General gazogene is as shown in figure 1, the region in 100 wall of body of heater from the bottom up is followed successively by burner hearth 10, anti- Area 20 and inducing QI area 30 being answered, coal powder entrance 110 being provided with the middle and lower part of 100 side wall of body of heater, air inlet 130 is arranged at 100 bottom of body of heater, The logical air inlet of institute is air；It is burner hearth 10 that in 100 wall of body of heater, position on the lower side directly connects coal powder entrance 110 and 130 region of air inlet, It is the space of coal dust firing, it completes above-mentioned reactional equation (1)；There is steam entry 120 in the middle part of 100 side wall of body of heater, enter Gas is mainly water vapour, in the top of burner hearth 10, is reaction zone 20 with 120 direct connected region of steam entry, there is provided dioxy Change the reaction compartment that carbon, water vapour and carbon complete above-mentioned reactional equation (2), (3), (4) under heat absorption environment；In reaction zone 20 Top is inducing QI area 30 (i.e. area above dotted line), and the top of body of heater 100 is connected to cyclone separator by 140 pipeline of air guide port 200, the primary coal gas containing granules such as coal dusts is transported in cyclone separator 200 to carry out gas and separates with granule, and granule leads to Cross cyclone separator lower pipeline and burnt to returning to draw mouth 180 and be mutually connected back in body of heater 100 with body of heater 100 again, isolate gas Derive through cyclone separator top gas-pipe line 150, be exactly required coal gas.

In traditional method, the coal dust that will be enriched in carbon is passed through generation heat and carbon dioxide in gas generator, then passes to Vapor, air occurs the endothermic reaction to produce coal gas with coal dust, carbon dioxide in gas producer.The master of Gas Production Want heat energy from carbon content in coal burning liberated heat, such as above-mentioned equation (1), remaining equation (2), (3), (4) are all to consume heat energy Reaction, the energy consumption limit of endothermic reaction equation when unique exothermic reaction of equation (1) determines that coal gas thereafter is generated；Due to The unstable of reaction zone heat energy supply, temperature control difficulty are big, cause coal gas formation efficiency low, generate fuel gas ratio in gas Low, cause gas quality unstable.

Patent CN 101220297A (coal gas production method and equipment) provides one kind and is passed through to gas generator increase CO₂Gas, provides abundance CO for gas generator₂Gas, generates ratio so as to provide coal gas, increases CO₂Entrance 160, is shown in Fig. 1 Shown.But as traditional gas producer device, only increase CO₂Gas is supplied, and it still cannot the generation of comprehensively solve coal gas When heat energy supply, coal gas formation efficiency and quality problems caused by temperature control technology.

Patent CN 101307259A (a kind of gas producing device and method) provide a kind of microwave gas producing device and Method, sets up microwave source outside the wall of reaction zone side, for heating carbon by heating carborundum absorbent structure under oxygen-free environment Raw material and carbon dioxide reaction, to generate carbon monoxide；As shown in Figure 2.Wherein：Mixed zone 100B, raw material coal dust import 110B, CO₂Air inlet 120B, reaction zone 200B, microwave source 210B, porous barrier 250B, gas exit 220B, microwave protection area 300B. The method is generated the heat energy of coal gas and is all provided using microwave power supply, has been given up most economical coal and has been added thermogenetic thermal source, So that the cost that coal gas is generated is significantly increased, be not suitable for large-scale promotion.

Content of the invention

Present invention aim to solving that outlet efficiency in the production of existing traditional mode of production gas process is low, quality is unstable Defect, and the method for not exclusively generating coal gas using expensive microwave energy.The present invention is using traditional Gas Production and microwave The method that technology combines, solves the deficiencies in the prior art.

The present invention increases gas generator reaction zone microwave energy for supplementing heat energy by adopting traditional coal gas production procedure, Coal burning heat energy situation is completely dependent on so as to change heat energy when coal gas is generated, there is provided the heat of coal gas reaction zone steady temperature field Can ensure；System by reaction zone place can microwave heating silicon carbide ceramics, keep reaction zone constant high temperature, while microwave Microwave is radiated to reaction zone gaseous mixture directly, it is considered to a carborundum heating environment is formed with the pottery for hardly consuming microwave energy Isolation incubation cavity, not only beneficial to carborundum insulation, reduce microwave using power but also carborundum high temperature heat will not be diffused into instead Area metal furnace wall is answered, is reacted and damage equipment with furnace wall materials when causing microwave heating, be conducive to microwave leakage protection, carry High equipment dependability；The supplementary energy and coal burning heat energy of microwave energy combines, the coal gas life of composition this patent gas producer Production capacity source, extraneous input CO₂Enable that gas producing efficiency is higher, comprehensive energy consumption is low, microwave easy to operate production coal gas method It is promoted and uses.

A kind of another object of the present invention, there is provided system and device of microwave gas producer.

The technical problem to be solved can be achieved by following technical solution：

As a kind of method that a first aspect of the present invention, utilization microwave method produce coal gas, it is characterised in that including following Step：

(1) coal dust, air, water vapour and CO are added to microwave gas producer body of heater each entrance₂Gas；

Wherein：110 is coal powder entrance, and 120 is steam entry, and 130 is air intake, and 160 is CO₂Entrance.

(2) coal dust by 110 entrances and passes through burner hearth 10 zonal combustion of the 130 entrance air inlets in 100 bottom of body of heater, The CO of generation₂Gas and releasing heat energy are delivered to the reaction zone 20 of body of heater to 100 top of body of heater, and this reaction is exactly above-mentioned reaction side Journey：O₂+C→2CO₂+Q(1)；

(3) there is the aluminium oxide ceramics incubation cavity 500 of an oxidation aluminium material in reaction zone 20, multilamellar is placed in the chamber can be with Absorb the silicon carbide structure part 600 of microwave, the carbonization in aluminium oxide ceramics incubation cavity 500 in microwave orientation reaction zone 20 Silicon structural member 600 so that temperature keeps constant in aluminium oxide ceramics incubation cavity 500, and temperature is set between 500-1500 DEG C.

(4) CO that burner hearth 10 is produced₂Gas and release heat energy, the water vapour come in from steam entry 120, from CO₂Entrance 160 CO for directly coming in₂Gas, in aluminium oxide ceramics incubation cavity 500 supplement microwave heating system 300 provide microwave energy and Heating silicon carbide structure part 600 produces heat energy, at high temperature, above-mentioned mixed gas is transformed into primary coal gas, and this reaction is exactly Above-mentioned reactional equation：

CO₂+C→2CO-Q (2)

H₂O+C→H₂+CO-Q (3)

2H₂O+C→CO₂+2H₂-Q (4).

(5) inducing QI area 30 (the body of heater dotted line of Fig. 3 above) of the primary coal gas through 100 top of body of heater, through airway 140, then cyclone separator 200 is connected to through pipeline；Primary coal gas containing granules such as coal dusts is carried out in cyclone separator 200 Gas is separated with granule, and isolating gas derives through cyclone separator top gas-pipe line 150, is exactly required coal gas, will be divided Not sufficiently combusted and reaction pulverized coal particle is separated out, mouth 180 is drawn for 100 times by cyclone separator lower pipeline to body of heater and is entered again Enter microwave gas producer body of heater 100.

Wherein in step (1), described microwave gas producer is a kind of gas producer containing microwave heat, described Microwave frequency is 915MHz or 2450MHz.

Described microwave gas producer is as shown in Figure 4；Microwave coal gas occurs in 100 wall of device metal body of heater from the bottom up Region be followed successively by burner hearth 10, reaction zone 20, inducing QI area 30；There is lower metal separator 111 between burner hearth 10 and reaction zone 20, instead Answering has upper metal separator 112 between area 20 and inducing QI area 30, be microwave heating system 300, inside have oxidation outside 20 wall of reaction zone Aluminum ceramic thermal insulation chamber 500 and silicon carbide structure part 600 therein, the lower metal separator 111 and upper metal by reaction zone 20 Demarcation strip 112, microwave are present only in reaction zone 20.

Further, there are air intake 130, coal powder entrance 110, steam entry 120, CO on furnace wall₂Entrance 160, lead QI KOU 140, return draw mouth 180 and microwave heating system 300；There is upper and lower metal separator 112 and 111 reaction zone, interior has aluminium oxide Ceramic thermal insulation chamber 500 and silicon carbide structure part 600 therein.

Further, microwave system 300 is entered in body of heater reaction zone 20, to anti-through 100 metal-back of body of heater by waveguide 20 inside holding chamber of area radiation microwave is answered, microwave penetration crosses incubation cavity, act on silicon carbide structure part therein and wherein flow Gaseous mixture so that gaseous mixture further absorbs, after burner hearth releasing heat energy is absorbed, the heat energy that microwave energy and carbofrax material are released, Generate primary coal gas；

The reaction zone 20 of described microwave gas producer body of heater 100 increases microwave insulation blocking in body of heater 100, wherein There is ventilative lower metal separator 111 below reaction zone 20, reaction zone microwave region is concentrated on above dividing plate, not to stove below body of heater Thorax 10 is escaped, and wherein has ventilative upper metal separator 112 above reaction zone 20, reaction zone microwave region is concentrated on below dividing plate, First guard 121, the difference shield microwaves of the second guard 141 are to 140 external leakage of steam entry 120 and airway；

Further, described ventilative lower metal separator 111, upper metal separator 112 and the first guard 121, The aperture of two guards 141 is selected according to microwave frequency, it is ensured that its corresponding leakage meets safety requirements；Upper metal separator 112, It is metal connection between lower metal separator 111 and the furnace wall of body of heater 100, should connects by the requirement of microwave anti-leak, under having respectively Metal separator 111 is to the ventilative and upper metal separator 112 of aluminium oxide ceramics incubation cavity 500 to 30 ventilatory function hole of inducing QI area.

In step (1), described CO₂Gas is the gas outside gas producer, in the microwave and high temperature of reaction zone Under environment, it directly generates CO gases with the C reactions in coal dust, increases the CO gas yields of gas producer.

In step (2), in described equation (1), the heat release heat of coal dust firing exothermic reaction is not this coal gas production method In unique coal gas generate thermal source.

In step (3), described aluminium oxide ceramics incubation cavity 500 is a pottery that almost closes, have full communication between the higher and lower levels and The passage of lateral inflow steam；Described aluminium oxide ceramics incubation cavity 500 selects the electromagnetic wave transparent material for hardly picking up microwave, preferably Low-density aluminium oxide ceramics, it is also possible to have the microwave low-loss such as the material such as quartz of this feature, heat-insulated, heat preserving ceramic from other Material；

Further, the ceramic thermal insulation chamber of microwave energy is hardly consumed, and both work(is used beneficial to carborundum insulation, reduction microwave Rate will not be diffused into carborundum heat energy on the body of heater of reaction zone again and cause reaction zone metallic walls high temperature, when causing microwave heating with Furnace wall materials react and damage equipment, are conducive to microwave leakage protection, improve equipment dependability.

In described aluminium oxide ceramics incubation cavity 500, multilamellar absorbs carborundum (SiC) structural member 600 of microwave, is a kind of The strong dielectric material for absorbing microwave, the microwave power that microwave heating system 300 is provided is mainly by carborundum (SiC) structural member 600 Absorb so that microwave heating system 300 is entered in reaction zone 20, to aluminium oxide ceramics incubation cavity through body of heater 100 by waveguide 500 microwave heatings, carborundum (SiC) structural member 600 that intracavity multilamellar absorbs microwave is heated up.

The structure of described silicon carbide structure part 600 is tabular or strip, in porous, breather hole structure, is suction ripple material by force Material, it can be heated to more than 1500 DEG C, by temperature measuring equipment, can control power and the time of microwave heating, keep which permanent Temperature.

Further, described microwave absorbs carborundum (SiC) knot of microwave to multilamellar in aluminium oxide ceramics incubation cavity 500 Component 600 is heated, and can realize 500-1500 DEG C of constant temperature using thermometric feedback control microwave heating.

In step (4), CO₂Gas and releasing heat energy are delivered to the reaction zone 20 of body of heater to 100 top of body of heater, are by saturating The lower metal separator 111 of gas, and through aluminium oxide ceramics incubation cavity 500 bottom air vent realize；

Further, energy needed for the generation of CO gases is protected from 10 coal-fired heat release of burner hearth, 20 aluminium oxide ceramics of reaction zone 600 heat release of carborundum (SiC) structural member and from 300 microwave radiation energy of microwave system in warm chamber 500 so that when coal gas is generated Energy be to be fully ensured, especially by the CO below body of heater 100₂160 entrance of entrance is passed directly into extraneous CO gases, can So that the CO gas yields of microwave gas producer are greatly improved.

Microwave operational frequencies described in described microwave gas producer select 915MHz or 2450MHz；When carborundum is tied When structure size is more than 100mm, preferably 915MHz.

In step (5), not sufficiently combusted and reaction pulverized coal particle will be isolated and microwave coal will be entered again by coal powder entrance Gas generator.

Used as a second aspect of the present invention, a kind of utilization microwave method produces the device of coal gas, sends out including a kind of microwave coal gas Raw device system and device, as shown in figure 4, microwave gas producer therein as shown in figure 3, including：Microwave gas producer 100, 140 pipeline of airway of body of heater, returning for cyclone separator 200, body of heater draw 180 pipeline of mouth, gas-pipe line 150；

The discharge end of the airway 140, rear end that described 200 front end of cyclone separator connects body of heater by pipeline passes through Pipeline connects returning for body of heater and draws mouth 180, and the outlet of other end dedusting coal gas connects gas-pipe line 150.

Described microwave gas producer includes：Body of heater 100, burner hearth 10, reaction zone 20, inducing QI area 30, microwave heating system System 300, reaction zone therein have upper metal separator 112, lower metal separator 111 and furnace wall to constitute microwave heating chamber, reaction There is microwave heating system 300 outside 20 wall of area, interior have aluminium oxide ceramic thermal insulation chamber 500 and silicon carbide structure part 600 therein；Body of heater There are coal powder entrance 110, steam entry 120, CO on 100 walls₂Entrance 160, return draw mouth 180, furnace bottom is air intake 130, stove Top is airway 140；

Further, outside 20 wall of reaction zone of body of heater 100, microwave passes through body of heater by waveguide to microwave heating system 300 100 furnace wall enters reaction zone 20；

It is metal connection between the furnace wall of described upper metal separator 112, lower metal separator 111 and body of heater 100, should Connect by the requirement of microwave anti-leak, have lower metal separator 111 respectively to the ventilative and upper metal point of aluminium oxide ceramics incubation cavity 500 Dividing plate 112 is to 30 ventilatory function hole of inducing QI area.

Described aluminium oxide ceramics incubation cavity 500 is the electromagnetic wave transparent material for hardly picking up microwave, preferably low-density aluminium oxide Pottery, it is also possible to have the microwave low-loss such as the material such as quartz of this feature, insulation medium material from other；

Described silicon carbide structure part 600, as constant temperature structure part in furnace chamber, is tabular or strip, in porous, air-vent Structure, is strong absorbing material, and it can be heated to more than 1500 DEG C；Described microwave absorbs microwave to multilamellar in incubation cavity 500 Carborundum (SiC) structural member 600 heat, 500-1500 DEG C of perseverance can be realized using thermometric feedback control microwave heating Temperature.

Described CO₂Entrance 160 is gas port of the input outside gas producer, in the microwave and high temperature ring of reaction zone Under border, by this mouth, it is directly by extraneous CO₂CO gases are generated with the C reactions in coal dust, increases the CO gases of gas producer Yield.

Description of the drawings

Fig. 1 is the process chart of general gazogene, such as patent CN 101220297A (coal gas production method and Equipment).

Fig. 2 is a kind of process chart of full microwave gazogene, such as a kind of patent CN 101307259A (coal gas Process units and method).

Fig. 3 is a kind of microwave manufacturing technique method figure of coal gas of the present invention.

Fig. 4 is a kind of microwave gas producer installation drawing of the present invention.

In figure：

10- burner hearths, 20- reaction zones, 30- inducing QIs area, 100- bodies of heater, 110- coal powder entrances, metal separator under 111-, The upper metal separators of 112-, 120- steam entries, the first guards of 121-, 130- air intakes, 140- airways, 141- second Guard, 150- gas-pipe lines, 160-CO₂Entrance, 200- cyclone separator, 300- microwave heating systems, 500- aluminium oxide ceramics Incubation cavity, 600- silicon carbide structure parts.

Specific embodiment

For being easy to understand technological means, creation characteristic, reached purpose and effect of present invention realization, with reference to Specific embodiment, is expanded on further the present invention.

The coal dust come in from coal powder entrance 110, air intake 130 come in air, both generate CO in combustion zone₂Gas and Release heat, add directly from CO₂Entrance 160 is passed through CO₂Gas, the lower metal separator 111 for then passing through reaction zone 20 are entered In aluminium oxide ceramics incubation cavity 500, the water vapour being passed through with the steam entry 120 of side wall is in aluminium oxide ceramics incubation cavity 500 In, absorb 10 burning coal of burner hearth and release carborundum in heat energy, part microwave energy and microwave heating oxidation aluminum ceramic thermal insulation chamber 500 Structural member 600 produces heat energy, completes coal gas reaction of formation, such as shown in equation (2), (3), (4), produces primary coal gas and passes through upper gold Category demarcation strip 112, enters 140 mouthfuls of airway by body of heater inducing QI area 30, and the pipeline through airway 140 is to cyclone separator 200 In, after cyclone separator 200 is separated granule is taken to back to draw mouth 180 and enter body of heater 100 by its underpart pipeline and is fired again Burn and utilize, coal gas is derived from the top gas-pipe line 150 of cyclone separator 200 after dedusting, is exactly required coal gas.

The method of the present invention is compared with prior art, complete with production technology, advanced technology, improves production coal gas and turns Change rate and product quality, the device simultaneously have energy-conservation, efficient the characteristics of, coal gas product quality and stability can be significantly improved.

Ultimate principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry Personnel are merely to illustrate the present invention in above-described embodiment and description it should be appreciated that the present invention is not restricted to the described embodiments Principle, without departing from the spirit and scope of the present invention the present invention also have various changes and modifications, these change and Improvement belongs to the scope of the invention.The scope of protection of present invention is defined by claims and its equivalent of annex.

Claims

1. the microwave manufacturing technique method of a kind of coal gas, it is characterised in that comprise the following steps：

(1) coal dust, air, water vapour and CO are separately added into microwave gas producer each entrance₂Gas；

(2) by the coal dust of coal powder entrance (110) and burner hearth of the air in body of heater (100) bottom for passing through air intake (130) (10) zonal combustion, the CO of generation₂Gas and releasing heat energy are delivered to the reaction zone (20) of body of heater to body of heater (100) top, this Reaction is exactly reactional equation：

O₂+C→2CO₂+Q (1)

(3) there is an aluminium oxide ceramics incubation cavity (500) in the reaction zone (20) of body of heater, placement multilamellar can absorb micro- in the chamber The silicon carbide structure part (600) of ripple, silicon carbide structure part (600) are tabulars, and in porous, breather hole structure, microwave is oriented Silicon carbide structure part (600) in the inner aluminium oxide ceramics incubation cavity (500) of effect body of heater reaction zone (20) so that aluminium oxide is made pottery The interior temperature of porcelain incubation cavity (500) keeps constant, and temperature is set between 500-1500 DEG C；

(4) CO that burner hearth (10) is produced₂Gas and release heat energy, the water vapour come in from steam entry (120), from CO₂Entrance (160) CO for directly coming in₂Gas, in aluminium oxide ceramics incubation cavity (500) supplement microwave heating system (300) provide micro- Wave energy and heating silicon carbide structure part (600) produce heat energy, at high temperature, above-mentioned mixed gas are transformed into primary coal gas, this Reaction is exactly above-mentioned reactional equation：

CO₂+C→2CO-Q (2)

H₂O+C→H₂+CO-Q (3)

2H₂O+C→CO₂+2H₂-Q (4)

(5) primary coal gas then is connected to rotation through pipeline through the inducing QI area (30) on body of heater (100) top through airway (140) Wind separator (200)；Primary coal gas containing pulverized coal particle in cyclone separator (200) carries out gas and separates with granule, point Separate out gas through cyclone separator top gas-pipe line (150) derive, be exactly required coal gas, will isolate not sufficiently combusted and The pulverized coal particle of reaction, draws mouth (180) by cyclone separator lower pipeline to body of heater (100) time and is again introduced into microwave coal gas Raw device body of heater (100).

2. the microwave manufacturing technique method of the coal gas according to right 1, it is characterised in that in step (1), described microwave coal Gas generator is a kind of gas producer containing microwave heating system, and the microwave operational frequencies of the microwave heating system are 915MHz or 2450MHz.

3. the microwave manufacturing technique method of the coal gas according to right 2, it is characterised in that in step (1), described microwave coal Region in gas generator metal body of heater (100) wall from the bottom up is followed successively by burner hearth (10), reaction zone (20) and inducing QI area (30)； Have lower metal separator (111) between burner hearth (10) and reaction zone (20), have between reaction zone (20) and inducing QI area (30) on It is microwave heating system (300) outside metal separator (112), body of heater (100) reaction zone (20) wall, in reaction zone (20), has oxidation Aluminum ceramic thermal insulation chamber (500) and silicon carbide structure part therein (600), by the lower metal separator (111) of reaction zone (20) With upper metal separator (112), microwave is present only in reaction zone (20),

Microwave heating system (300) is entered in body of heater reaction zone (20), to reaction zone through body of heater (100) metal-back by waveguide (20) inside holding chamber radiation microwave, microwave penetration crosses incubation cavity, acts on silicon carbide structure part therein and mixing of wherein flowing Close gas so that gaseous mixture further absorbs, after burner hearth releasing heat energy is absorbed, the heat energy that microwave energy and carbofrax material are released, raw Into primary coal gas.

4. the microwave manufacturing technique method of the coal gas according to right 3, it is characterised in that increase microwave in body of heater (100) There is ventilative lower metal separator (111) below insulation blocking, wherein reaction zone (20), make reaction zone microwave region concentrate on dividing plate Top, does not escape to the burner hearth (10) below body of heater, wherein has ventilative upper metal separator (112) above reaction zone (20), Reaction zone microwave region is made to concentrate on below dividing plate, shield microwaves are steamed to water respectively for the first guard (121) and the second guard (141) Vapour entrance (120) and airway (140) external leakage；

Described lower metal separator (111), upper metal separator (112), the first guard (121) and the second guard (141) Aperture according to microwave frequency select, the stove of upper metal separator (112), lower metal separator (111) and body of heater (100) It is metal connection between wall.

5. the microwave manufacturing technique method of the coal gas according to right 1, it is characterised in that in step (1), described CO₂Gas It is the gas outside gas producer, under the microwave of reaction zone and hot environment, it is directly generated with the C reactions in coal dust CO gases, increase the CO gas yields of gas producer.

6. the microwave manufacturing technique method of the coal gas according to right 1, it is characterised in that in step (2), described equation (1) the heat release heat of coal dust firing exothermic reaction in is not that unique coal gas generates thermal source in this coal gas production method.

7. the microwave manufacturing technique method of the coal gas according to right 1, it is characterised in that in step (3), described aluminium oxide Ceramic thermal insulation chamber (500) is a pottery that almost closes, the passage for having full communication between the higher and lower levels and lateral inflow steam；Described oxidation Made from the electromagnetic wave transparent material for hardly picking up microwave in aluminum ceramic thermal insulation chamber (500).

8. the microwave manufacturing technique method of the coal gas according to right 7, it is characterised in that described aluminium oxide ceramics insulation Multilamellar in chamber (500) absorbs the silicon carbide structure part (600) of microwave, is made up of a kind of strong dielectric material for absorbing microwave, micro- The microwave power that Wave heating system (300) is provided mainly is absorbed by silicon carbide structure part (600) so that microwave heating system (300) entered in reaction zone (20) through body of heater (100) by waveguide, to aluminium oxide ceramics incubation cavity (500) microwave heating, will Intracavity multilamellar absorbs the silicon carbide structure part (600) of microwave and heats up.

9. the microwave manufacturing technique method of the coal gas according to right 1, it is characterised in that in step (4), CO₂Gas and releasing Heat energy is delivered to the reaction zone (20) of body of heater to body of heater (100) top, be by lower metal separator (111), and through oxidation The bottom air vent in aluminum ceramic thermal insulation chamber (500) is realized；

Coal-fired heat release of the energy needed for the generation of CO gases in burner hearth (10), the insulation of the aluminium oxide ceramics in reaction zone (20) The heat release of silicon carbide structure part (600) and the microwave radiation energy from microwave heating system (300) in chamber (500).

10. the microwave manufacturing technique method of the coal gas according to right 2, it is characterised in that in step (4), when carborundum is tied When the size of component is more than 100mm, the microwave operational frequencies described in described microwave gas producer are 915MHz.

A kind of 11. utilization microwave methods produce the device of coal gas, it is characterised in that include：Microwave gas producer, the inducing QI of body of heater Pipe (140) pipeline, cyclone separator (200), returning for body of heater draw mouth (180) pipeline, gas-pipe line (150),

Described cyclone separator (200) front end connects the airway (140) of body of heater by pipeline, discharge one end of rear end leads to Piping connects returning for body of heater and draws mouth (180), and the outlet of other end dedusting coal gas connects gas-pipe line (150),

Described microwave gas producer includes：Body of heater (100), burner hearth (10), reaction zone (20), inducing QI area (30), microwave add Hot systems (300), it is micro- that reaction zone (20) therein have upper metal separator (112), lower metal separator (111) and furnace wall to constitute There is microwave heating system (300) outside Wave heating chamber, wall, interior have aluminium oxide ceramic thermal insulation chamber (500) and multilamellar carborundum therein Structural member (600), described in adjacent two layers, silicon carbide structure part (600) is spaced in intervals, and silicon carbide structure part (600) are Tabular, in porous, breather hole structure；There are coal powder entrance (110), steam entry (120), CO on body of heater (100) wall₂Entrance (160), return and draw mouth (180), it is airway (140) that furnace bottom is air intake (130), furnace roof.

12. utilization microwave methods according to claim 11 produce the device of coal gas, it is characterised in that microwave heating system (300) outside reaction zone (20) wall of body of heater (100), microwave enters reaction zone by waveguide through the furnace wall of body of heater (100) (20)；

It is metal connection between the furnace wall of described upper metal separator (112), lower metal separator (111) and body of heater (100), Should connect by the requirement of microwave anti-leak, have respectively lower metal separator (111) to aluminium oxide ceramics incubation cavity (500) ventilative and on Metal separator (112) is to inducing QI area (30) ventilatory function hole.

13. utilization microwave methods according to claim 11 produce the device of coal gas, it is characterised in that aluminium oxide ceramics are incubated It is made up of the electromagnetic wave transparent material for hardly picking up microwave in chamber (500).

14. utilization microwave methods according to claim 11 produce the device of coal gas, it is characterised in that silicon carbide structure part (600) as constant temperature structure part in furnace chamber, it is strong absorbing material, more than 1500 DEG C can be heated to；When using microwave to oxygen When multilamellar silicon carbide structure part (600) of the absorption microwave in change aluminum ceramic thermal insulation chamber (500) is heated, using thermometric feedback control Microwave heating processed is realizing 500-1500 DEG C of constant temperature.

15. utilization microwave methods according to claim 12 produce the device of coal gas, it is characterised in that described CO₂Entrance (160) it is gas port of the input outside gas producer, under the microwave of reaction zone and hot environment, by this mouth, it is straight Connect extraneous CO₂Generate CO gases to increase the CO gas yields of gas producer with the C reactions in coal dust.