CN103215082A - Continuous coal gangue pyrolysis gasification furnace - Google Patents

Continuous coal gangue pyrolysis gasification furnace Download PDF

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Publication number
CN103215082A
CN103215082A CN2013101217317A CN201310121731A CN103215082A CN 103215082 A CN103215082 A CN 103215082A CN 2013101217317 A CN2013101217317 A CN 2013101217317A CN 201310121731 A CN201310121731 A CN 201310121731A CN 103215082 A CN103215082 A CN 103215082A
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gas
combustion
chamber
heater
air
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CN103215082B (en
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王新民
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Shanxi Xinli Energy Technology Co Ltd
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Shanxi Xinli Energy Technology Co Ltd
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Abstract

The invention discloses a continuous coal gangue pyrolysis gasification furnace which comprises a furnace body, a furnace material feed bin, a coal gangue pyrolysis gasification device, a crude gas guiding device, a hinge cage sealing material discharger and a product feed bin, wherein the coal gangue pyrolysis gasification device comprises a coal gangue pyrolysis device and a water gas reaction device; the coal gangue pyrolysis device comprises a pyrolysis gasification chamber, an outer gas heating device and an inner gas heating device; the water gas reaction device comprises a pyrolysis gasification chamber, a material temperature reduction device and a steam generation device; the material temperature reduction device comprises a high temperature reduction chamber, a low temperature reduction chamber and a temperature reduction chamber bridge arch; the steam generation device comprises an annular hollow metal box body, a steam pocket, a steam pocket input pipe and a steam pocket output pipe; the crude gas guiding device comprises a crude gas concentration chamber, an inner guiding channel, an outer guiding channel, a main guiding channel and an annular guiding channel; the furnace material feed bin is arranged on the top of the furnace body; the hinge cage sealing material discharger is arranged at the bottom of the steam generation device; and the product feed bin is arranged at the bottom of the furnace body and connected with the hinge cage sealing material discharger.

Description

Continuous coal gangue pyrolytic gasification stove
Technical field
The present invention relates to the technology of coal gangue pyrolytic gasification, particularly continuous coal gangue pyrolytic gasification stove.
Background technology
Coal gangue---the stone of selecting from raw coal is the waste residue of coal separating plant, bad processing, China has more than one hundred million tons coal gangue not utilize every year, and still continues to discharge about 100Mt every year, not only piles up and takes up an area of, and can also the spontaneous combustion polluted air or cause fire, cause serious environmental to pollute.
Owing to the incoalation in 1 years, contain carbon, oil, the gas material of 20-30% in the coal gangue, wherein oil gas accounts for 11-15%, carbon accounts for 7-15%.The coal gangue pyrolytic gasification, (composition is compositions such as silicon-dioxide, aluminium sesquioxide, ferric oxide, titanium dioxide, calcium oxide, magnesium oxide, potassium oxide, sodium oxide, Vanadium Pentoxide in FLAKES, manganese oxide, sulphur trioxide to obtain the solid product of oil gas product and 70-80%, be the grog of sal refractory materials), economic worth is arranged, social benefit is more arranged.
The inventor is for a long time to the research of the physical property and the high temperature coal pyrolysis gas metallization processes of coal gangue, brand-new coal gangue high temperature pyrolysis and gasification composite technology and the device of innovation one cover.
Summary of the invention
The invention provides continuous coal gangue pyrolytic gasification stove, this stove is derived integral body of comprehensive one-tenth with coal gangue pyrolysis, gasification, raw gas, realizes the gasification of coal gangue continuous pyrolysis, has improved pyrolytic gasification efficient, has reduced the pyrolytic gasification cost.
Realize that the technical scheme that above-mentioned purpose is taked is:
The coal gangue pyrolytic gasification stove comprises body of heater, goes into the furnace charge storehouse, coal gangue pyrolysis gasifying device, raw gas take-up gear, hinge cage sealing discharging device, product feed bin; Described coal gangue pyrolysis gasifying device comprises coal gangue pyrolysis installation, water-gas reaction device; Described coal gangue pyrolysis installation is arranged on the body of heater middle part, mainly comprise pyrolysis vaporizer, outer combustion gas heating unit, interior gas-operated thermal bath facility, the center support bow constitutes, described pyrolysis vaporizer is by in the fire-resistant thermally conductive material, outer ring wall constitutes an annulus, being centered around pyrolysis vaporizer's exterior wall ring periphery is outer combustion gas heating unit, in the indoor ringwall ring of pyrolytic gasification is interior gas-operated thermal bath facility, described water-gas reaction device comprises pyrolysis vaporizer, the material heat sink, steam generation device, the pyrolysis vaporizer of described pyrolysis vaporizer and coal gangue pyrolysis installation is same chamber, pyrolysis vaporizer is positioned at center support bow top, described material heat sink, steam generation device is positioned at center support bow below, described material heat sink comprises high temperature cooling chamber, low temperature cooling chamber, cooling chamber's bridge bow, the top of high temperature cooling chamber communicates bottom pyrolysis vaporizer, high temperature cooling chamber and low temperature cooling chamber upper and lower settings, cooling chamber's bridge bow is arranged between high temperature cooling chamber and the low temperature cooling chamber, and described cooling chamber bridge bow comprises the bridge bow, steam chest, steam enters siphunculus; Bridge bow middle part forms steam chest, the lower openings of steam chest is towards low temperature cooling chamber, steam enters siphunculus and is arranged in the bridge bow, steam enters siphunculus one end and leads to steam chest, the other end stretches out outside the stove, described steam generation device comprises annular hollow metal casing, steam pockets and drum input tube, the drum output tube, annular hollow metal casing is installed in bottom of furnace body, the interior annular space chamber of annular hollow metal casing is connected to the low temperature cooling chamber bottom of material heat sink, form the body of heater water bag that sealing relatively is used for storage of water in the annular hollow metal casing case, body of heater water bag is connected to water inlet pipe and drum input tube, water inlet pipe communicates with water tank, drum input tube and steam pockets are connected, and the drum output tube of steam pockets enters the siphunculus the other end with the steam of material heat sink and communicates; Described raw gas take-up gear comprises the raw gas concentration chamber, the interior passage of deriving, the outer passage of deriving, derive the main channel, derive circuit, it is integrally formed that described raw gas concentration chamber is arranged on the top and the pyrolysis vaporizer of pyrolysis vaporizer, the interior passage of deriving is provided with in the quirk partition wall, pyrolysis vaporizer was led at the ringwall middle part in interior derivation feeder connection passed, the interior channel outlet that derives is passed the raw gas concentration chamber that interior ringwall leads to the pyrolysis vaporizer top, the described outer passage of deriving is provided with in the exterior wall of body of heater, the outer down feeder connection of deriving, the derivation feeder connection leads to pyrolysis vaporizer in the middle part of passing outer ring wall outside going up, the outer channel outlet that derives is passed the raw gas concentration chamber that outer ring wall leads to the pyrolysis vaporizer top, described derivation main channel is arranged in the exterior wall of body of heater of pyrolysis of coal stove, derivation main channel inlet communicates with the raw gas concentration chamber and extends up in the exterior wall top derivation circuit that body of heater is set again, and derives circuit and is provided with the raw gas export mouth; Describedly go into the furnace charge storehouse and be arranged on the body of heater top, the body of heater top is provided with into stove cloth passage, go into stove cloth passage upper end and go into the furnace charge storehouse and communicate, going into stove cloth passage lower end communicates with the pyrolysis vaporizer top of coal gangue pyrolysis installation, hinge cage sealing discharging device is arranged on the bottom, interior annular space chamber of annular hollow metal casing of the steam generation device of water-gas reaction device, the product feed bin places bottom of furnace body, connects hinge cage sealing discharging device on the product feed bin.
Described coal gangue pyrolysis installation also comprises the gas reversing system, described outer combustion gas heating unit is mainly some groups of identical related first combustion heaters of structure, second combustion heater constitutes, described first combustion heater mainly comprises first combustion chamber, first coal gas enters the arm and first regenerative heat exchanger, first coal gas enters arm and passes the body of heater exterior wall and lead in first combustion chamber, body of heater exterior wall that first combustion chamber is made by refractory materials and fire-resistant thermally conductive material are made the gas-fired quirk that pyrolysis vaporizer's outer ring wall and outer quirk partition wall surround a relative closure, described first regenerative heat exchanger comprises the first accumulation of heat chamber, first heat storage, the first air admission arm and the first combustion exhaust exhaust outlet, the first accumulation of heat chamber is arranged in the body of heater exterior wall, first heat storage is provided with in the first accumulation of heat chamber, the first accumulation of heat chamber, one end leads to bottom, first combustion chamber, the other end is connected to the first air admission arm and the first combustion exhaust exhaust outlet respectively, in like manner identical second combustion heater of structure also mainly comprises second combustion chamber, second coal gas enters the arm and second regenerative heat exchanger, the top of outer quirk partition wall is provided with the combustion chamber through hole between described first combustion chamber and next-door neighbour's second combustion chamber, and the combustion chamber through hole is connected first combustion chamber and next-door neighbour's second combustion chamber and constituted related one group; Gas-operated thermal bath facility is mainly by some groups of association the 3rd combustion heaters that structure is identical in described, the 4th combustion heater, its structure and related first burning heater, second burning heater is formed almost completely identical, the gas-fired quirk that the indoor ringwall of pyrolytic gasification and internal-quirk partition wall surround a relative closure is made by fire-resistant thermally conductive material in different is the 3rd combustion heater the 3rd combustion chamber, the 3rd coal gas enters arm and passes below the bar bow of center support bow and upwards lead to the 3rd combustion chamber, the 3rd accumulation of heat chamber is arranged on the body of heater of bar bow below, the 3rd heat storage places the 3rd accumulation of heat chamber, the 3rd accumulation of heat chamber one end passes to extend upward below the bar bow of center support bow and leads to bottom, the 3rd combustion chamber by extending passage, the 3rd accumulation of heat chamber the other end is connected to the 3rd air admission arm and the 3rd combustion exhaust exhaust outlet respectively, the top of internal-quirk partition wall is provided with chamber passage between described the 3rd combustion chamber and next-door neighbour's the 4th combustion chamber, and chamber passage is connected the 3rd combustion chamber and next-door neighbour's the 4th combustion chamber and constituted related one group; Described gas reversing system comprises dish, lower wall, the rotation reversing motor, air blower, gas fan, exhaust gas fan, lower wall is connected to an air person in charge respectively and first air is in charge of, second air is in charge of, a coal gas is responsible for and first gas manifold, second gas manifold, combustion exhaust is responsible for and second combustion exhaust is in charge of, first combustion exhaust is in charge of, wherein second combustion exhaust is in charge of to be in charge of to be in charge of with first air with first combustion exhaust and is in charge of with second air and the setting of first gas manifold and second gas manifold is just exchanged, last dish is fitted in the lower wall top, on coil respectively that correspondence is provided with the air pipe connecting, the coal gas pipe connecting, the combustion exhaust pipe connecting, thereby the rotation reversing motor drive to be gone up dish and is back and forth rotated on lower wall and realize that air is responsible for constantly to be in charge of to be in charge of with second air with first air and connect and cut off conversion, coal gas is responsible for constantly and is connected and cut off conversion with first gas manifold and second gas manifold, and combustion exhaust is responsible for constantly to be in charge of to be in charge of with first combustion exhaust with second combustion exhaust and is connected and cut off conversion; Wherein, described first air is in charge of with the first air admission arm, the 3rd air admission arm and is connected, simultaneously, described first gas manifold and first coal gas enter arm, the 3rd coal gas enters arm and connects, described first combustion exhaust was in charge of with the first combustion exhaust exhaust outlet, the 3rd combustion exhaust exhaust outlet and was connected simultaneously this moment; In like manner, second air is in charge of with the second air admission arm, the 4th air admission arm and is connected, simultaneously, second gas manifold and second coal gas enter arm, the 4th coal gas enters arm and connects, meanwhile, second burning gas is in charge of with the second combustion exhaust exhaust outlet, the 4th combustion exhaust exhaust outlet and is connected.
Described coal gangue pyrolysis installation comprises that also two groups of bustle pipes are arranged on the periphery of body of heater, comprises the first air bustle pipe, the first coal gas bustle pipe, the first combustion exhaust bustle pipe; The second air bustle pipe, the second coal gas bustle pipe, the second combustion exhaust bustle pipe; Wherein said first air is in charge of by the first air bustle pipe and the first air admission arm, the 3rd air admission arm and is connected, simultaneously, described first gas manifold enters arm, the 3rd coal gas by the first coal gas bustle pipe and first coal gas and enters arm and connect, described first combustion exhaust was in charge of by the first combustion exhaust bustle pipe and was connected with the first combustion exhaust exhaust outlet, the 3rd combustion exhaust exhaust outlet simultaneously this moment; In like manner, second air is in charge of by the second air bustle pipe and the second air admission arm, the 4th air admission arm and is connected, simultaneously, second gas manifold enters arm, the 4th coal gas by the second coal gas bustle pipe and second coal gas and enters arm and connect, meanwhile, second burning gas is in charge of by the second combustion exhaust bustle pipe and is connected with the second combustion exhaust exhaust outlet, the 4th combustion exhaust exhaust outlet.
Be provided with the first one-way air valve between the first air admission arm of described first combustion heater and the first accumulation of heat chamber, the first one-way air valve allows air to flow into first combustion chamber from the first air admission pipe and the first accumulation of heat chamber; Be provided with the first unidirectional waste gas valve between the first combustion exhaust exhaust outlet and the first accumulation of heat chamber, the first unidirectional waste gas valve allows the gas-fired waste gas first accumulation of heat chamber of flowing through from first combustion chamber, discharges from the first combustion exhaust exhaust outlet at last; Be provided with the second one-way air valve between the second air admission arm of described second combustion heater and the second accumulation of heat chamber, the second one-way air valve allows air to flow into second combustion chamber from the second air admission pipe and the second accumulation of heat chamber; Be provided with the second unidirectional waste gas valve between the second combustion exhaust exhaust outlet and the second accumulation of heat chamber, the second unidirectional waste gas valve allows the gas-fired waste gas second accumulation of heat chamber of flowing through from second combustion chamber, discharges from the second combustion exhaust exhaust outlet at last; In like manner the 3rd combustion heater, the 4th combustion heater also comprise one-way air valve, unidirectional waste gas valve, are provided with identical with first combustion heater, second combustion heater.
Described outer combustion gas heating unit mainly is divided into upper, middle and lower syllogic heating, and every section has 9 groups of identical first combustion heaters of structure, second combustion heater to constitute.
Gas-operated thermal bath facility mainly is divided into upper and lower two-section type heating in described, and every section has 6 groups of identical the 3rd combustion heaters of structure, the 4th combustion heater to constitute.
Cooling chamber's bridge bow of described material heat sink is partitioned into spoke shape at an angle with high temperature cooling chamber and low temperature cooling chamber axle center and arranges.
The steam chest of cooling chamber's bridge bow of described material heat sink is a cylindrical chamber, and the top of steam chest is provided with the semisphere blast cap.
The big up and small down funnel-form in interior annular space chamber of the annular hollow metal casing of described steam generation device.
The interior derivation feeder connection and outer derive passage following outer of deriving passage in the described raw gas take-up gear derive feeder connection, go up the outer feeder connection setting of staggering up and down of deriving.
The present invention provides thermal source by purifying the back gas-fired in the outer combustion gas heating unit of coal gangue pyrolysis installation, the interior gas-operated thermal bath facility to pyrolysis vaporizer, and coal gangue carries out pyrolysis under the hot environment in pyrolysis vaporizer; Again by the water-gas reaction device, feed high-temperature water vapor from the pyrolysis vaporizer bottom, and contact with the hot coal gangue pyrolysis material of the high temperature of pyrolysis vaporizer, charcoal in the solid product after the coal gangue pyrolysis and superheated vapour meet and carry out water-gas reaction and generate water-gas; Solid product behind the coal gangue pyrolytic gasification falls into the high temperature cooling chamber and the low temperature cooling chamber of material heat sink from pyrolysis vaporizer, the water vapor that upwards enters pyrolysis vaporizer through low temperature cooling chamber and high temperature cooling chamber is heated as the superheated high-temperature water vapor once more, again the solid product behind the coal gangue pyrolytic gasification is lowered the temperature simultaneously, utilize solid product waste heat in the low temperature cooling chamber to add the thermosetting water vapor for the water in the body of heater water bag of annular hollow metal casing of steam generation device again, water vapor enters in the steam pockets by the drum input tube, gives and replenishes a large amount of water vapors that consume because of water-gas reaction in the steam pockets; Steam pockets enters siphunculus by drum input tube and steam and feeds water vapor to the low temperature cooling chamber of material heat sink again, makes water-gas reaction uninterruptedly to carry out continuously; The gas that coal gangue produces in the high temperature pyrolysis process and carry out water-gas reaction and generate water-gas (carbon monoxide and hydrogen), be referred to as raw gas, raw gas is derived by the raw gas take-up gear that is provided with on the body of heater, so that change that product reclaims and utilize, simultaneously the raw gas of comparatively high temps enter the raw gas take-up gear from the pyrolysis vaporizer top derivation main channel process again to carrying out preheating from the coal gangue pellet of just going into stove of going into the pyrolysis vaporizer top that stove cloth passage enters; According to coal gangue pyrolytic gasification degree, the cage of control hinge in good time sealing discharging device opens or cuts out, solid product after the coal gangue high temperature pyrolysis and gasification cooling in low temperature cooling chamber and the interior annular space chamber is entered in the product feed bin, the present invention with coal gangue pyrolytic gasification process integration at the hot body of heater of same coal, realize continuous coal gangue pyrolytic gasification, the production efficiency height, the required factory building face of equipment is little, cost is low, utilize simultaneously that waste heat produces water vapor in the solid product behind the pyrolytic gasification, utilize water vapor to lower the temperature for solid product behind the high temperature pyrolysis and gasification again and produce the needed high humidity superheated vapour of water-gas reaction simultaneously, have low consumption, the characteristics of environmental protection.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is a coal gangue pyrolytic gasification stove synoptic diagram of the present invention;
Fig. 2 is a gas reverser synoptic diagram of the present invention;
Fig. 3 coils synoptic diagram on the gas reverser of the present invention;
Fig. 4 is a gas reverser lower wall synoptic diagram of the present invention;
Fig. 5 is a c-c place cross-sectional schematic among Fig. 3;
Fig. 6 is gas reverser of the present invention and combustion heater pipe network connection diagram;
Fig. 7 is a t-t place schematic cross-section among Fig. 1;
Fig. 8 is a u-u place schematic cross-section among Fig. 1;
Fig. 9 is a v-v place schematic cross-section among Fig. 1;
Figure 10 is a center support bow synoptic diagram (x-x place schematic cross-section among Fig. 1) of the present invention;
Figure 11 is a vapour passage intention of the present invention (y-y place schematic cross-section among Fig. 1);
Figure 12 is steam pockets pipeline synoptic diagram of the present invention (a z-z place schematic cross-section among Fig. 1);
Figure 13 is an industry control central electrical connection diagram of the present invention.
Embodiment
The specific embodiment of the comprehensive utilization of coal gangue pyrolytic gasification of the present invention is mainly introduced in detail following.
First part's coal gangue granularity control
Coal gangue processing is broken into 0~20mm granularity, in this size range, the coal gangue particle is dehydrated, fully dry, the dewatering efficiency height, but this does not constitute the restriction to needed coal gangue to the present invention.
Second section coal gangue damping dehydration
The coal gangue pellet that the hot waste gas that purified gas burning back behind the raw gas product reclaiming clean that coal gangue high temperature pyrolysis and water-gas reaction are produced produces is used for after the fragmentation carries out the damping dehydration going into the stokehold.
In order to keep the neat and tidy of environment, damping dehydration back tail gas is washed one's hair by water and is purified the back qualified discharge.
Third part coal gangue high temperature pyrolysis and gasification (pyrolysis heating, water-gas are sent out and answered)
The high temperature pyrolysis heating of first segment coal gangue
As shown in Figure 1, coal gangue pyrolysis installation 6 is arranged on body of heater 91 middle parts, comprises that mainly pyrolysis vaporizer 61, outer combustion gas heating unit 64, interior gas-operated thermal bath facility 67, gas reversing system 66, center support bow 65 constitute; As Fig. 8, shown in Figure 9: pyrolysis vaporizer 61 is by in the fire-resistant thermally conductive material, outer ring wall 612,611 constitute an annulus, being centered around pyrolysis vaporizer's exterior wall 611 ring peripheries is outer combustion gas heating unit 64, in indoor ringwall 612 rings of pyrolytic gasification is interior gas-operated thermal bath facility 67, wherein outer combustion gas heating unit 64 is mainly first combustion heater 62 of some groups of (9 groups of this examples) identical associations of structure, second combustion heater 60 constitutes (sees Fig. 1, Fig. 2), as Fig. 1, Fig. 8, it is shown in Figure 9: because pyrolysis vaporizer 61 is highly higher, wherein outer combustion gas heating unit 64 mainly is divided into, in, following syllogic heating, every section first combustion heater 62 that 9 groups of identical associations of structure are arranged, second combustion heater 60 constitutes, interior gas-operated thermal bath facility 67 mainly is divided into, following two-section type heating, every section has 6 groups of identical the 3rd combustion heaters 68 mutually of structure, the 4th combustion heater 69 constitutes.
Show that as Fig. 1, Fig. 9 described first combustion heater 62 comprises that mainly first combustion chamber 621, first coal gas enter arm 622 and first regenerative heat exchanger, 624, the first coal gas and enters arm 622 and pass body of heater 91 exterior walls and lead in first combustion chamber 621.
As Fig. 1, shown in Figure 9: body of heater 91 exterior walls that first combustion chamber 621 is made by refractory materials and fire-resistant thermally conductive material are made the gas-fired quirk that pyrolysis vaporizer's outer ring wall 611 and outer quirk partition wall 625 surround a relative closure.
As Fig. 1, shown in Figure 9, first regenerative heat exchanger 624 comprises the first accumulation of heat chamber 626, first heat storage 623, the first air admission arm 627 and the first combustion exhaust exhaust outlet 628; The first accumulation of heat chamber 626 is arranged in body of heater 91 exterior walls, first heat storage 623 is provided with in the first accumulation of heat chamber 626, the first accumulation of heat chamber, 626 1 ends lead to 621 bottoms, first combustion chamber, and the other end is connected to the first air admission arm 627 and the first combustion exhaust exhaust outlet 628 respectively.
As shown in Figure 9, being provided with the first one-way air valve, 629, the first one-way air valves 629 between the first air admission arm 627 and the first accumulation of heat chamber 626 allows air to flow into first combustion chamber 621 from the first air admission pipe 627 and the first accumulation of heat chamber 626; Between the first combustion exhaust exhaust outlet 628 and the first accumulation of heat chamber 626, be provided with the first unidirectional waste gas valve 620, the first unidirectional waste gas valve 620 allows the gas-fired waste gas first accumulation of heat chamber 626 of flowing through from first combustion chamber 621, discharge (certainly from the first combustion exhaust exhaust outlet 628 at last, adopt gas reversing system 66 as described below, be responsible for 667 and first air when air and be in charge of 6671 connections, the air person in charge 667 and second air is in charge of 6673 and is in cut-out; Meanwhile, the combustion exhaust person in charge 669 is in charge of 6691 with first combustion exhaust and also cuts off mutually, and corresponding combustion exhaust is responsible for 669 and second combustion exhaust and is in charge of 6693 and is in and is connected, and can play the effect of the replacement first one-way air valve 629 and the first unidirectional waste gas valve 620).
In like manner, as shown in Figure 9: identical second combustion heater 60 of structure comprises that mainly second combustion chamber 601, second coal gas enter the arm 602 and second regenerative heat exchanger 604.
As shown in Figure 9: body of heater 91 exterior walls that second combustion chamber 601 is made by refractory materials and fire-resistant thermally conductive material are made the gas-fired quirk that pyrolysis vaporizer's outer ring wall 611 and outer quirk partition wall 625 surround a relative closure.
As Fig. 1, shown in Figure 9: second coal gas enters arm 602 and passes body of heater 91 exterior walls and lead in first combustion chamber 601.
As shown in Figure 9: second regenerative heat exchanger 604 comprises the second accumulation of heat chamber 606, second heat storage 603, the second air admission arm 607 and the second combustion exhaust exhaust outlet 608, the second accumulation of heat chamber 606 is arranged in body of heater 91 exterior walls, second heat storage 603 is provided with in the second accumulation of heat chamber 606, the second accumulation of heat chamber, 606 1 ends lead to 601 bottoms, second combustion chamber, the other end is connected to the second air admission arm 607 and the second combustion exhaust exhaust outlet 608 respectively, being provided with the second one-way air valve, 609, the second one-way air valves 609 between the second air admission arm 607 and the second accumulation of heat chamber 606 allows air to flow into second combustion chamber 601 from the second air admission pipe 607 and the second accumulation of heat chamber 606; Between the second combustion exhaust exhaust outlet 608 and the second accumulation of heat chamber 606, be provided with the second unidirectional waste gas valve 600, the second unidirectional waste gas valve 600 allows the gas-fired waste gas second accumulation of heat chamber 606 of flowing through from second combustion chamber 601, discharge (certainly from the second combustion exhaust exhaust outlet 608 at last, adopt gas reversing system 66 as described below, be responsible for 667 and first air when air and be in charge of 6671 cut-outs, the air person in charge 667 and second air is in charge of 6673 and is in connection, meanwhile, the combustion exhaust person in charge 669 and first combustion exhaust is in charge of 6691 and also is connected, and the corresponding combustion exhaust person in charge 669 is in charge of 6693 also cut-outs mutually with second combustion exhaust; Can play the effect that replaces the second one-way air valve 609 and the second unidirectional waste gas valve 600).
As Fig. 1, shown in Figure 8, the top of outer quirk partition wall 625 is provided with combustion chamber through hole 6251 between first combustion chamber 621 and next-door neighbour's second combustion chamber 601, combustion chamber through hole 6251 is connected first combustion chamber 621 and next-door neighbour's second combustion chamber 601 and is constituted related one group, in this example, outer combustion gas heating unit 64 is provided with quirk partition wall 625 partition walls outside 18 roads altogether, forms 9 groups of related burning groups; In addition, as shown in Figure 1; Because pyrolysis vaporizer 61 is highly higher, wherein outer combustion gas heating unit 64 mainly is divided into upper, middle and lower syllogic heating, and every section has 9 groups of identical and related first combustion heaters 62 of structure, second combustion heaters 60 to constitute.
As shown in Figure 1: each combustion chamber also is provided with chamber temperature monitoring holes 6201 and combustion chamber spy hole 6202 on body of heater 91 exterior walls, combustion chamber spy hole 6202 is convenient to the gas-fired situation that the technician intuitively observes each combustion chamber, be provided with chamber temperature table 6203 in the chamber temperature monitoring holes 6201 and be used for temperature monitoring, so that to the assessment of pyrolysis of coal process the combustion chamber.
As shown in figure 13: chamber temperature table 6203 links with industry control center 90, is gathered the temperature data of chamber temperature table 6203 automatically by industry control center 90.
As Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, gas reversing system 66 comprises dish 661, lower wall 662, rotation reversing motor 663, air blower 664, gas fan 665, exhaust gas fan 666, lower wall 662 is connected to the air person in charge 667 and first air respectively and is in charge of 6671, second air is in charge of 6673, a coal gas is responsible for 668 and first gas manifold 6681, second gas manifold 6683, a combustion exhaust is responsible for 669 and second combustion exhaust and is in charge of 6693, first combustion exhaust is in charge of 6691, wherein, second combustion exhaust is in charge of 6693 and first combustion exhaust and is in charge of 6691 and first air and is in charge of 6671 and second air and is in charge of the setting of 6673 and first gas manifold 6681 and second gas manifold 6683 and just exchanges (Fig. 3, Fig. 4, shown in Figure 6).
As Fig. 3, Fig. 4, Fig. 5, shown in Figure 6: on coil 661 and be fitted in lower wall 662 tops, last dish 661 correspondence respectively is provided with air pipe connecting 6672, coal gas pipe connecting 6682, combustion exhaust pipe connecting 6692, go up dish 661 and on lower wall 662, back and forth rotate and realize that air is responsible for 667 and constantly is in charge of 6671 and second air with first air and is in charge of 6673 and connects and cut off conversion thereby rotation reversing motor 663 drives, coal gas is responsible for 668 and is constantly connected and cut off conversion with first gas manifold 6681 and second gas manifold 6683, and combustion exhaust is responsible for 669 and constantly is in charge of 6693 and first combustion exhaust with second combustion exhaust and is in charge of 6691 and connects and cut off conversion (be in charge of 6671 and second air to be in charge of the switching of 6673 and first gas manifold 6681 and second gas manifold 6683 just opposite with first air).
As Fig. 1, shown in Figure 6, also be provided with two groups of bustle pipes in the periphery of body of heater 91, comprise the first air bustle pipe, 6674, the first coal gas bustle pipes, 6684, the first combustion exhaust bustle pipes 6694; The second air bustle pipe 6675, the second coal gas bustle pipe, 6685, the second combustion exhaust bustle pipes 6695.
As Fig. 1, shown in Figure 6, the first air bustle pipe 6674 is in charge of the 6671 and first air admission arm 627 with first air and is linked up, and first air is in charge of 6671, the first air bustle pipe 6674, the first air admission arm 627, the first accumulation of heat chamber 626 and first combustion chamber 621 constitutes same path;
Meanwhile, the first coal gas bustle pipe 6684 enters arm 622 with first gas manifold 6681 and first coal gas and links up, and first gas manifold 6681, the first coal gas bustle pipe 6684, first coal gas is entered arm 622 and first combustion chamber 621 constitutes same path;
This moment simultaneously, the first combustion exhaust bustle pipe 6694 is first combustion exhaust to be in charge of the 6691 and first combustion exhaust exhaust outlet 628 link up, and first combustion exhaust is in charge of 6691, the first combustion exhaust bustle pipe 6694, the first combustion exhaust exhaust outlet 628, the first accumulation of heat chamber 626 and the same path of combustion chamber 621 formations.
In like manner, the second air bustle pipe 6675 is in charge of the 6673 and second air admission arm 607 with second air and is linked up, and second air is in charge of 6673, the second air bustle pipe 6675, the second air admission arm 607, the second accumulation of heat chamber 606 and second combustion chamber 601 constitutes same path;
Meanwhile, the second coal gas bustle pipe 6685 enters arm 602 with second gas manifold 6683 and second coal gas and links up, and second gas manifold 6683, the second coal gas bustle pipe 6685, second coal gas is entered arm 602 and second combustion chamber 601 constitutes same path;
Meanwhile, the second combustion exhaust bustle pipe 6695 is in charge of the 6693 and second combustion exhaust exhaust outlet 608 with second burning gas and is linked up, and second combustion exhaust is in charge of 6693, the second combustion exhaust bustle pipe 6695, the second combustion exhaust exhaust outlet 608, the second accumulation of heat chamber 606 and second combustion chamber 601 constitutes same path.
In addition; as shown in figure 13; this example comprises that also gas reversing system controller 906 is used for rotation reversing motor 663, air blower 664, gas fan 665, exhaust gas fan 666 controls; gas reversing system electric controller 906 links with upper industry control center 90 again; certainly from electric control theory; rotation reversing motor 663, air blower 664, gas fan 665, exhaust gas fan 666 also can directly be subjected to 90 controls of industry control center in this example, so the restriction that gas reversing system controller 906 does not constitute this routine protection domain is set herein.
As Fig. 1, Fig. 2~Fig. 5, Fig. 6, shown in Figure 13: the heating means of this outer combustion gas heating unit 64 are:
(1) upward dish 661 rotation on lower wall 662 of industry control center 90 startup rotation reversing motors, 663 drives, air is responsible for 667 and first air and is in charge of 6671 connections, and the air person in charge 667 and second air is in charge of 6673 and is in dissengaged positions; Simultaneously, coal gas is responsible for 668 and first gas manifold 6681 and also is connected, and coal gas is responsible for 668 and second gas manifold 6683 and is in dissengaged positions; Meanwhile, combustion exhaust is responsible for 669 and is in charge of 6691 with first combustion exhaust and also cuts off mutually, and the corresponding combustion exhaust person in charge 669 and second combustion exhaust is in charge of 6693 and is in the state of being connected;
(2) industry control center 90 starts air blower 664, gas fan 665, exhaust gas fan 666; Air blower 664 with air blast that air is responsible for 667, air enter successively through air pipe connecting 6672, first air be in charge of 6671, the first air bustle pipe 6674, the first air admission arm 627 enters into the first accumulation of heat chamber 626, enter in first combustion chamber 621 after the heat that utilizes first heat storage 623 to discharge heats air; Simultaneously, gas fan 665 obtains purified gas after with raw gas processization product reclaiming clean and blasts coal gas and be responsible for 668, coal gas enters coal gas pipe connecting 6682 successively, first gas manifold 6681, the first coal gas bustle pipe 6684, first coal gas enters arm 622 and enters in first combustion chamber 621 and burn, meanwhile, because the combustion exhaust person in charge 669 is in charge of 6691 with first combustion exhaust and is in dissengaged positions mutually, and corresponding combustion exhaust is responsible for 669 and second combustion exhaust and is in charge of 6693 and is in the state of being connected, so the waste gas in first combustion chamber 621 after the gas-fired can only enter into second combustion chamber 601 by the combustion chamber through hole 6251 on outer quirk partition wall 625 tops, again through in the second accumulation of heat chamber 606, after second heat storage 603 in the second accumulation of heat chamber 606 carries out absorbing and cooling temperature from the second combustion exhaust exhaust outlet 608, the second combustion exhaust bustle pipe 6695, second combustion exhaust is in charge of 6693, combustion exhaust is responsible for 669 by exhaust gas fan 666 discharges;
(3) reach and set combustion time, industry control center 90 starts rotation reversing motor 663 and drives upward dish 661 backward rotation on lower wall 662, air is responsible for 667 and first air and is in charge of 6671 cut-outs, the air person in charge 667 and second air is in charge of 6673 and is in on-state, simultaneously, the coal gas person in charge 668 also cuts off mutually with first gas manifold 6681, coal gas is responsible for 668 and second gas manifold, 6683 on-states, meanwhile, combustion exhaust is responsible for 669 and first combustion exhaust and is in charge of 6691 and also is connected, and corresponding combustion exhaust is responsible for 669 and is in charge of 6693 also dissengaged positions mutually with second combustion exhaust;
(4) air blower 664 with air blast that air is responsible for 667, air enter successively through air pipe connecting 6672, second air be in charge of 6673, the second air bustle pipe 6675, the second air admission arm 607 enters into the second accumulation of heat chamber 606, enter in second combustion chamber 601 after the heat that utilizes second heat storage 603 in the second accumulation of heat chamber 606 to discharge heats air; Simultaneously, gas fan 665 blasts the coal gas person in charge 668 with raw gas through obtaining purified gas after reclaiming only, coal gas enters coal gas pipe connecting 6682 successively, second gas manifold 6683, the second coal gas bustle pipe 6685, second coal gas enters arm 602 and enters in second combustion chamber 601 and burn, meanwhile, because the combustion exhaust person in charge 669 and first combustion exhaust is in charge of 6691 and is connected, and corresponding combustion exhaust is responsible for 669 and is in charge of 6693 with second combustion exhaust and is in dissengaged positions mutually, so the waste gas in second combustion chamber 601 after the gas-fired can only enter by the combustion chamber through hole 6251 on outer quirk partition wall 625 tops in first combustion chamber 621, again through the first accumulation of heat chamber 626, after first heat storage 603 in the first accumulation of heat chamber 626 carries out absorbing and cooling temperature, at last from the first combustion exhaust exhaust outlet 628, the first combustion exhaust bustle pipe 6694, first combustion exhaust is in charge of 6691, combustion exhaust is responsible for 669 by exhaust gas fan 666 discharges, so outer combustion gas heating unit 64 combustion principle are the waste gas that generates and enter second combustion chamber 601 from combustion chamber through hole 6251 after gas-fired in first combustion chamber 621, second heat storage 603 is discharged after all the other thermal absorptions are lowered the temperature in second combustion chamber 601 and the second accumulation of heat chamber 606, otherwise, the waste gas that generates after gas-fired in second combustion chamber 601 enters first combustion chamber 621 from combustion chamber through hole 6251, and first heat storage 603 is discharged after all the other thermal absorptions are lowered the temperature in first combustion chamber 621 and the first accumulation of heat chamber 606.
In sum, this gas two by the gas reversing system advances the mode of operation of the regenerative heat exchange of a mode of operation that outes and regenerative heat exchanger, realize the combustion heater alternate combustion of two groups of associations, be that the gas reversing system is sent into air, purified gas burning to the combustion chamber of first combustion heater, hot waste gas after sucking-off is burnt from the combustion chamber of second combustion heater simultaneously, the second heat storage absorbing and cooling temperature of hot waste gas in second regenerative heat exchanger of second combustion heater become the relatively low low temperature waste gas of temperature and discharge; In like manner, the gas reversing system is sent into air, purified gas burning to the combustion chamber of second combustion heater, hot waste gas after sucking-off is burnt from the combustion chamber of first combustion heater simultaneously, the first heat storage absorbing and cooling temperature of hot waste gas in first regenerative heat exchanger of first combustion heater become the relatively low low temperature waste gas of temperature and discharge; This method of utilizing waste gas residual heat after the gas-fired to add warm air mutually, both played the waste gas residual heat after the gas-fired had been made full use of, improve the efficiency of combustion of the coal gas in the combustion chamber, can carry out to a certain degree cooling to the waste gas after the gas-fired again, need not consume the external energy, play energy saving purposes, save coal gangue pyrolytic gasification cost.
Heating by external gas-operated thermal bath facility 64 is controlled automatically, reduces human cost, has improved the control accuracy to the pyrolysis of coal process, realizes automatization.
As Fig. 1, shown in Figure 10, interior gas-operated thermal bath facility 67 is mainly by some groups of (6 groups of this examples) combustion heaters 68 that structure is identical, 69, because gas-operated thermal bath facility 67 was mainly by mainly being divided in pyrolysis vaporizer 61 was highly higher, following two-section type heating, every section has 6 groups of association the 3rd combustion heaters 68 that structure is identical, the 4th combustion heater 69, it forms structure and related first burning heater 62 of combustion principle with above introduction, second burning heater 60 is almost completely identical, and the 3rd combustion heater 68 also comprises the 3rd combustion chamber 681, the 3rd coal gas enters arm 682, the 3rd accumulation of heat chamber 686, the 3rd heat storage 683, the 3rd air admission arm 687 and the 3rd combustion exhaust exhaust outlet 688.
As Fig. 1, Fig. 9, shown in Figure 10, the gas-fired quirk that the indoor ringwall 612 of pyrolytic gasification and internal-quirk partition wall 635 surround a relative closure is made by fire-resistant thermally conductive material in the 3rd combustion chamber 681.
As Fig. 1, shown in Figure 10, the 3rd coal gas of hypomere enters arm 682 and passes below the bar bow 651 of center support bow 65 and upwards lead to the 3rd combustion chamber 681, the 3rd accumulation of heat chamber 686 is arranged on the body of heater 91 that bar bends 651 belows, the 3rd heat storage 683 places the 3rd accumulation of heat chamber 686, the 3rd accumulation of heat chamber 686 1 ends pass to extend upward below the bar bow 651 of center support bow 65 and lead to 681 bottoms, the 3rd combustion chamber by extending passage 6861, and the 3rd accumulation of heat chamber 686 the other ends are connected to the 3rd air admission arm 687 and the 3rd combustion exhaust exhaust outlet 688 respectively.
As Fig. 1, Fig. 9, shown in Figure 10, the 3rd coal gas of epimere enters arm 682 and passes upwards below the bar bow 651 of center support bow 65 and lead to the 3rd combustion chamber 681 through quirk partition wall 635, the 3rd accumulation of heat chamber 686 is arranged on the body of heater 91 that bar bends 651 belows, the 3rd heat storage 683 places the 3rd accumulation of heat chamber 686, the 3rd accumulation of heat chamber 686 1 ends pass upwards to extend through quirk partition wall 635 below the bar bow 651 of center support bow 65 and lead to 681 bottoms, the 3rd combustion chamber by extending passage 6861, and the 3rd accumulation of heat chamber 686 the other ends are connected to the 3rd air admission arm 687 and the 3rd combustion exhaust exhaust outlet 688 respectively.
In like manner, as Fig. 9, shown in Figure 10, the 4th combustion heater 69 structures are intact identical with the 3rd combustion heater 68, repeat no more here, and wherein the 4th combustion chamber 691 is connected by chamber passage 6305 with the 3rd combustion chamber 681 and constituted related one group (Fig. 1, shown in Figure 8).
Wherein, as shown in Figure 6, the 3rd coal gas of the 3rd combustion chamber 681 of the 3rd burning heater 68 enters arm 682, the 3rd air admission arm 687 and the 3rd combustion exhaust exhaust outlet 688 and is in charge of 6671, first combustion exhaust by the first coal gas bustle pipe 6684, the first air bustle pipe, 6674, the first combustion exhaust bustle pipes 6694 and first gas manifold 6681, first air respectively and is in charge of 6691 and communicates.
As Fig. 1, Fig. 6, shown in Figure 10, the 4th coal gas of the 4th combustion chamber 691 of the 4th burning heater 69 enters arm 692, the 4th air admission arm 697 and the 4th combustion exhaust exhaust outlet 698 and is in charge of 6673, second combustion exhaust by the second coal gas bustle pipe 6685, the second air bustle pipe 6675, the second combustion exhaust bustle pipe 6695 and second gas manifold 6683, second air respectively and is in charge of 6693 and communicates.
In sum, the 3rd burning heater 68, the 4th combustion heater 69 combustion principle and above first burning heater 62, second burning heater 60 are almost completely identical, repeat no more here.
As Fig. 1, shown in Figure 10, center support bow 65, because the quirk partition wall 635 of indoor ringwall 612 of pyrolytic gasification and internal combustion heating unit 67 all is arranged in the furnace chamber, need center support bow 65 for it provides support, the laying of various pipelines is provided for again simultaneously internal combustion heating unit 67.
As Fig. 1, shown in Figure 10, center support bow 65 is arranged in the furnace chamber of pyrolysis vaporizer 61, internal combustion heating unit 67 belows, mainly comprise some bar bow 651, fiery bow center ringwall 652, bar bends 651 1 ends and is fixed on the fiery bow center ringwall 652, the other end is fixed on the body of heater 91, bar bow 651 centers on ringwall 652 centers, the fiery bow center radial layout of scattering in interval at a certain angle, fire bow 651 in this example is 12 bows, and quantity is consistent with the 3rd burning heater 68 the 4th burning heater 69 sums that are mutually related of internal combustion heating unit 67.
As Fig. 1, shown in Figure 10, article one, in the body of wall of fire bow 651 the extension passage 6861 that the 3rd coal gas enters arm 682 and the 3rd accumulation of heat chamber 686 is set, the 4th coal gas that is provided with in the body of wall of another tightly adjacent fire bow 651 enters the extension passage 6961 in arm 692 and the 4th accumulation of heat chamber 696, provide convenience for the pipeline laying of internal combustion heating unit 67, make the various conduit arrangements of internal combustion heating unit 67 orderly, be unlikely to interfere.
The second water saving coal gas reaction
Because coal gangue temperature in pyrolysis vaporizer is higher, feed water vapor to coal gangue again, charcoal in the coal gangue pyrolysis after product and superheated vapour meet and carry out water-gas reaction generation water-gas (carbon monoxide and hydrogen).
As Fig. 1, Figure 10, shown in Figure 11, water-gas reaction device 7 comprises pyrolysis vaporizer 61, material heat sink 70, steam generation device 75.
As shown in Figure 1, pyrolysis vaporizer 61 is positioned at center support and bends 65 tops, and material heat sink 70, steam generation device 75 are positioned at center support and bend 65 belows.
As Fig. 1, shown in Figure 11, material heat sink 70 is arranged on and stretches out body of heater 91 bottoms, comprises high temperature cooling chamber 701, low temperature cooling chamber 702, cooling chamber's bridge bow 703; The top of high temperature cooling chamber 701 communicates with pyrolysis vaporizer 61 bottoms; High temperature cooling chamber 701 and low temperature cooling chamber 702 upper and lower settings, cooling chamber's bridge bow 703 is arranged between high temperature cooling chamber 701 and the low temperature cooling chamber 702, and cooling chamber's bridge bow 703 comprises that bridge bow 7031, steam chest 704, steam enter siphunculus 707; Article 4, bridge bow 7031 is partitioned into spoke shape layout at an angle with 702 centers of high temperature cooling chamber 701 and low temperature cooling chamber, bridge bends 7031 middle parts and forms steam chest 704, steam chest 704 is a cylindrical chamber, the top of steam chest 704 is provided with semisphere blast cap 708, and the lower openings of steam chest 704 is towards low temperature cooling chamber 702; Steam enters siphunculus 707 and is arranged in the bridge bow 7031, and steam enters siphunculus 707 1 ends and leads to steam chest 704, and the other end stretches out outside the body of heater 91.
As Fig. 1, shown in Figure 12, steam generation device 75 comprises annular hollow metal casing 755, steam pockets 754 and drum input tube 751, drum output tube 752, annular hollow metal casing 755 is installed in body of heater 91 bottoms, the interior annular space chamber 758 of annular hollow metal casing 755 is connected to low temperature cooling chamber 702 bottoms of material heat sink 70, the big up and small down funnel-form of interior annular space chamber 758 annular cavities, 755 casees interior formation of annular hollow metal casing seal the body of heater water bag 753 that is used for storage of water relatively, body of heater water bag 753 is connected to water inlet pipe 756 and drum input tube 751, water inlet pipe 756 communicates with water tank 757, drum input tube 751 is connected with steam pockets 754, and the drum output tube 752 of steam pockets 754 enters siphunculus 707 the other ends with the steam of material heat sink 70 and communicates.
Water-gas reaction principle method of the present invention is:
(1), water vapor enters siphunculus 707 by drum input tube 752 and steam and feeds water vapor to the low temperature cooling chamber 702 of material heat sink 70 in the steam pockets 754, water vapor blows to low temperature cooling chamber 702, the solid product cooling in giving low temperature cooling chamber 702 behind the pyrolytic gasification, water vapor upwards seals in high temperature cooling chamber 701, give the high-temp solid product cooling after pyrolysis vaporizer 61 falls into a large amount of pyrolytic gasification of high temperature cooling chamber 701, when the solid of water vapor after giving pyrolytic gasification lowered the temperature, improve vapor temperature and form superheated vapour;
(2), superheated vapour passes center support bow 65 and enters pyrolysis vaporizer 61, and contact with the high temperature coal gangue pyrolysis material of pyrolysis vaporizer 61, charcoal after the coal gangue pyrolysis in the solid product and superheated vapour meet and carry out water-gas reaction and generate water-gas (carbon monoxide and hydrogen);
(3), solid product behind the coal gangue pyrolytic gasification falls into the high temperature cooling chamber 701 and the low temperature cooling chamber 702 of material heat sink 70 from pyrolysis vaporizer 61, the water vapor that upwards enters pyrolysis vaporizer 61 through low temperature cooling chamber 702 and high temperature cooling chamber 701 is heated as the superheated high-temperature water vapor once more, again the solid product behind the coal gangue pyrolytic gasification is lowered the temperature simultaneously, utilize solid product waste heat in the low temperature cooling chamber 702 to add the thermosetting water vapor for the water in the body of heater water bag 753 again, water vapor enters in the steam pockets 754 by drum input tube 751, give and replenish a large amount of water vapors that consume because of water-gas reaction in the steam pockets 754, make water-gas reaction uninterruptedly to carry out continuously.
The a large amount of generation of water-gas reaction of the present invention is to carry out in pyrolysis vaporizer 61 middle and lower parts, this is because the coal gangue pyrolysis in this section pyrolysis vaporizer is abundant relatively, temperature is also higher relatively, feed the water vapor of hyperthermia and superheating this moment from the bottom of pyrolysis vaporizer 61, the charcoal in the solid product after superheated water vapor and the coal gangue pyrolysis is sharp mutually will to produce a large amount of water-gas; Certainly, water vapor is in giving high temperature cooling chamber 701 and low temperature cooling chamber 702 in the solid product temperature-fall period behind the coal gangue pyrolytic gasification, also can produce water-gas with charcoal remaining in the solid product behind the coal gangue pyrolytic gasification, but the amount that produces is less relatively, this height of charcoal remaining in the solid product behind this and the coal gangue pyrolytic gasification is few, and steam temperature neither be too high relevant.
The waste heat of the solid product that the temperature of utilization of the present invention behind the coal gangue pyrolytic gasification is relatively low carries out heat passage generation water vapor, utilize the higher solid product of water vapor and temperature directly to contact the generation superheated vapour again, reach the temperature required of water-gas reaction, promote water-gas reaction to fill part more, both when reducing the solid product temperature, produce water vapor and superheated vapour again, this technological method that does not need to consume additional energy source meets energy-saving and cost-reducing that we advocate today, the theory of Sustainable development.
The 3rd joint raw gas take-up gear
Coal gangue produces the gas that contains a lot of useful compositions in the high temperature pyrolysis and gasification process, charcoal in the coal gangue pyrolysis after product and superheated vapour carry out water-gas reaction and generate water-gas (carbon monoxide and hydrogen), more than be referred to as raw gas, need derive so that utilize raw gas.
As Fig. 1, Fig. 8, shown in Figure 9, raw gas take-up gear 8 comprises raw gas concentration chamber 81, interior derivation passage 82, derives passage 83 outward, derives main channel 84, derives circuit 85; It is integrally formed that raw gas concentration chamber 81 is arranged on the top and the pyrolysis vaporizer 61 of pyrolysis vaporizer 61; As Fig. 1, shown in Figure 8, article 6, deriving passage 82 in is provided with in the quirk partition wall 635, pyrolysis vaporizer 61 was led at ringwall 612 middle parts in interior derivation feeder connection 821 passed, the raw gas concentration chamber 81 that ringwall 612 led to the pyrolysis vaporizer top in interior derivation channel outlet 822 was passed; As Fig. 1, shown in Figure 8, article 6, outer derivation passage 83 is provided with in the exterior wall of body of heater 91, derive feeder connection 831 down outward, go up the outer feeder connection 834 of deriving and pass outer ring wall 611 middle parts and lead to pyrolysis vaporizer 61, derive channel outlet 832 outward and pass the raw gas concentration chamber 81 that outer ring wall 611 leads to the pyrolysis vaporizer top.
As Fig. 1, shown in Figure 7, deriving main channel 84 is arranged in the exterior wall of body of heater 91 of pyrolysis of coal stove, derive main channel inlet 841 and communicate with raw gas concentration chamber 81 and extend up to the exterior wall top that body of heater 91 is set again and derive in the circuit 85, derivation circuit 85 is provided with raw gas export mouth 851, raw gas export mouth 852.
As Fig. 1, Fig. 7, Fig. 8, shown in Figure 9, in this example because pyrolysis vaporizer's 61 annular chamber, so also corresponding annular chamber of raw gas concentration chamber 81, article 6, deriving passage 82 in is separately positioned in the 6 road quirk partition walls 635, ringwall 612 leads to pyrolysis vaporizer 61 in passing, article 6, outer derivation passage 83 is separately positioned on middle the passing with outer quirk partition wall 625 and outer ring wall 611 of body of heater 91 exterior walls and leads to pyrolysis vaporizer 61, wherein, because the circumference of pyrolysis vaporizer 61 is longer, so interior ringwall 612 in pyrolysis vaporizer 61, be respectively arranged with on the outer ring wall 611 and derive feeder connection 821 and the outer down feeder connection 831 of deriving in 6, go up the outer feeder connection 834 of deriving, again because the height height of pyrolysis vaporizer 61, interior feeder connection 821 and the outer down derivation feeder connection 831 of deriving, go up outer feeder connection 834 setting of staggering up and down of deriving, as shown in Figure 1, the interior feeder connection 821 of deriving is higher than the outer down feeder connection 831 of deriving, go up outer feeder connection 834 places of deriving but be lower than, this example adopts this structure can better derive the raw gas that different sections in the pyrolysis vaporizer 61 produce, also be provided with the big raw gas main channel 84 of 6 sectional areas around raw gas concentration chamber 81 in addition and lead to derivation circuit 85, the purpose of She Zhiing can conveniently derive a large amount of raw gas in the raw gas concentration chamber 81 like this.
As shown in Figure 1, on the exterior wall of body of heater 91, be provided with the raw gas temperature monitoring hole 811 of leading to raw gas concentration chamber 81, place raw gas thermometer 812 in the raw gas temperature monitoring hole 811.
As shown in figure 13, raw gas thermometer 812 is electrically connected with industry control center 90, and industry control center 90 is by temperature in the raw gas thermometer 812 monitoring raw gas concentration chambers 81.
These routine characteristics will derive the passage 82 in interior derivation feeder connection 821 enters respectively by the different sections raw gas that produce in pyrolysis vaporizer 61, with derive feeder connection 831 down outward, go up the outer feeder connection 834 of deriving and enter the outer passage of deriving and go out to compile in the raw gas concentration chamber 81 in 83 again, certainly a large amount of raw gas in the pyrolysis vaporizer 61 are directly to rise up in the raw gas concentration chamber 81, enter derivation circuit 85 by deriving main channel 84, discharge from raw gas export mouth 851 at last.
The 4th joint continuous pyrolysis gasification
Comprehensively above-mentioned, these routine characteristics are that coal gangue pyrolysis, gasification (water-gas reaction), steam generation, raw gas are derived process integration in same body of heater, make that coal gangue pyrolysis, gasification (water-gas reaction), steam produce, raw gas is able to continuous realization.
As shown in Figure 1, coal gangue pyrolytic gasification stove 9 comprise body of heater 91, go into furnace charge storehouse 92, coal gangue pyrolysis gasifying device 93, raw gas take-up gear 8, hinge cage sealing discharging device 96, product feed bin 94; Coal gangue pyrolysis gasifying device 93 comprises coal gangue pyrolysis installation 6, water-gas reaction device 7, and the concrete structure of coal gangue pyrolysis installation 6, water-gas reaction device 7, raw gas take-up gear 8 is seen the above; Go into furnace charge storehouse 92 and be arranged on body of heater 91 tops, body of heater 91 tops are provided with into stove cloth passage 921, go into stove cloth passage 921 upper ends and go into furnace charge storehouse 92 and communicate, going into stove cloth passage 921 lower ends communicates with pyrolysis vaporizer 61 tops of coal gangue pyrolysis installation 6, hinge cage sealing discharging device 96 is arranged on 758 bottoms, interior annular space chamber of annular hollow metal casing 755 of the steam generation device 75 of water-gas reaction device 7, product feed bin 94 places body of heater 91 bottoms, connect hinge cage sealing discharging device 96 on the product feed bin 94, hinge cage sealing discharging device 96 belongs to prior art, as the sealing discharging device on the market, the sealing material returning device, sealing blanking device etc.
The method of this routine continuous pyrolysis gasification is:
(1), goes into the go into stove coal gangue pellet of stove coal gangue rotary conveyor 95 after by control and send in the furnace charge storehouse 92, again by going in the pyrolysis vaporizer 61 that stove cloth passage 921 enters coal gangue pyrolysis installation 6 the damping dehydration;
(2), purify the back gas-fired in the outer combustion gas heating unit 64 by coal gangue pyrolysis installation 6, interior gas-operated thermal bath facility 67 and thermal source be provided for pyrolysis vaporizer 61, coal gangue carries out pyrolysis under the hot environment in pyrolysis vaporizer 61;
(3), feed high-temperature water vapor by water-gas reaction device 7 from pyrolysis vaporizer 61 bottoms, and contact with the hot coal gangue pyrolysis material of the high temperature of pyrolysis vaporizer 61, charcoal in the solid product after the coal gangue pyrolysis and superheated vapour meet and carry out water-gas reaction and generate water-gas;
(4), solid product behind the coal gangue pyrolytic gasification falls into the high temperature cooling chamber 701 and the low temperature cooling chamber 702 of material heat sink 70 from pyrolysis vaporizer 61, the water vapor that upwards enters pyrolysis vaporizer 61 through low temperature cooling chamber 702 and high temperature cooling chamber 701 is heated as the superheated high-temperature water vapor once more, again the solid product behind the coal gangue pyrolytic gasification is lowered the temperature simultaneously, utilize solid product waste heat in the low temperature cooling chamber 702 to add the thermosetting water vapor for the water in the body of heater water bag 753 of annular hollow metal casing 755 of steam generation device 75 again, water vapor enters in the steam pockets 754 by drum input tube 751, gives and replenishes a large amount of water vapors that consume because of water-gas reaction in the steam pockets 754;
(5), steam pockets 754 enters siphunculus 707 by drum input tube 752 and steam and feeds water vapors to the low temperature cooling chamber 702 of material heat sink 70 again, makes water-gas reaction uninterruptedly to carry out continuously;
(6), the gas that in the high temperature pyrolysis process, produces of coal gangue and carry out water-gas reaction and generate water-gas (carbon monoxide and hydrogen), be referred to as raw gas, raw gas is derived by the raw gas take-up gear 8 that is provided with on the body of heater, so that change that product reclaims and utilize, simultaneously the raw gas of comparatively high temps enter the raw gas take-up gear from pyrolysis vaporizer 61 tops derivation main channel 84 processes again to carrying out preheating from the coal gangue pellet of just going into stove of going into pyrolysis vaporizer 61 tops that stove cloth passage 921 enters;
(7) according to coal gangue pyrolytic gasification degree, the cage of control hinge in good time sealing discharging device 96 opens or cuts out, and the solid product after the coal gangue high temperature pyrolysis and gasification cooling in low temperature cooling chamber 702 and the interior annular space chamber 758 is entered in the product feed bin.
This example with coal gangue pyrolytic gasification process integration at the hot body of heater of same coal, realize continuous coal gangue pyrolytic gasification, the production efficiency height, the required factory building face of equipment is little, human cost is low, utilize simultaneously that waste heat produces water vapor in the solid product behind the pyrolytic gasification, utilize water vapor to lower the temperature for solid product behind the high temperature pyrolysis and gasification again and produce the needed high humidity superheated vapour of water-gas reaction simultaneously, have the characteristics of low consumption, environmental protection.
The comprehensive cyclic utilization of the 4th part, pyrolysis of coal gas
Chapter 1, the reclaiming clean utilization of raw gas (change product)
First segment raw gas condensing works
It is higher that the coal gangue pyrolytic gasification is discharged the raw gas temperature, carries before changing the product recovery for the ease of the high temperature raw gas, the high temperature raw gas sprayed ammoniacal liquor cool off.
The reclaiming clean of the second joint raw gas
Raw gas after ammoniacal liquor sprays carries out gas-liquid separation, contain multiple useful organic component such as carbolic oil, naphtalene oil, washing oil, carbolineum etc. in the mixed solution after the gas-liquid separation and be used for other auxiliary product of industry refinement, coal gas after the gas-liquid separation is after the air cooling cooling, become purified gas after the dry method reclaiming clean reclaims, purified gas can store and be used for burning.
Chapter 2, raw gas reclaiming clean afterfire utilizes
Purified gas burning behind the first segment raw gas reclaiming clean
Being used for burning through the purified gas after the absorption provides thermal source for the coal gangue pyrolytic gasification.
Second joint utilizes purified gas burning back waste gas to saturated active coke regeneration heating
Hot waste gas after the purified gas burning is used for that to evaporate thermal regeneration be unsaturated activated coke because of the adsorption cleaning raw gas forms saturated active coke.
The 3rd joint utilizes purified gas burning back hot waste gas to going into the damping of stove coal gangue pellet
Hot waste gas after the purified gas burning is used for the coal gangue pellet of going into the stokehold is carried out the damping dehydration.
Chapter 3, the continuous coal gangue pyrolytic gasification of thermal cycling is comprehensive
The continuous coal gangue pyrolytic gasification of first segment thermal cycling and damping and tail gas clean-up
Hot waste gas after the purified gas burning is used for the coal gangue pellet of going into the stokehold is carried out the damping dehydration, carries out water after the hot waste gas dehydration again and washes one's hair purification and cooling, reaches clean discharged at lower temperature at last.
The continuous coal gangue pyrolytic gasification of second joint thermal cycling composite technology
Comprehensive above content draws the complete composite technology of the continuous coal gangue pyrolytic gasification of a kind of thermal cycling, includes stove coal gangue hot waste gas damping dehydration, coal gangue pyrolytic gasification, raw gas condensation, raw gas reclaiming clean, tail gas water and washes one's hair purification etc.
The control of the continuous coal gangue pyrolytic gasification of the 3rd joint thermal cycling composite technology
The various electrical equipments that use in the technologies such as UTILIZATION OF VESIDUAL HEAT IN of the hot waste gas after the present invention is burnt, burnt by coal gangue pyrolytic gasification, raw gas reclaiming clean, purified gas are controlled, and make that the continuous coal gangue pyrolytic gasification of thermal cycling is smooth.
Above content introduction just exemplifies a tool embodiment of thermal cycling continuous coal gangue pyrolytic gasification integration unit and technology, does not constitute the restriction to this case thermal cycling continuous coal gangue pyrolytic gasification integration unit and technology protection domain.

Claims (10)

1. continuous coal gangue pyrolytic gasification stove is characterized in that: comprise body of heater, go into the furnace charge storehouse, coal gangue pyrolysis gasifying device, raw gas take-up gear, hinge cage sealing discharging device, product feed bin; Described coal gangue pyrolysis gasifying device comprises coal gangue pyrolysis installation, water-gas reaction device; Described coal gangue pyrolysis installation is arranged on the body of heater middle part, mainly comprise pyrolysis vaporizer, outer combustion gas heating unit, interior gas-operated thermal bath facility, the center support bow constitutes, described pyrolysis vaporizer is by in the fire-resistant thermally conductive material, outer ring wall constitutes an annulus, being centered around pyrolysis vaporizer's exterior wall ring periphery is outer combustion gas heating unit, in the indoor ringwall ring of pyrolytic gasification is interior gas-operated thermal bath facility, described water-gas reaction device comprises pyrolysis vaporizer, the material heat sink, steam generation device, the pyrolysis vaporizer of described pyrolysis vaporizer and coal gangue pyrolysis installation is same chamber, pyrolysis vaporizer is positioned at center support bow top, described material heat sink, steam generation device is positioned at center support bow below, described material heat sink comprises high temperature cooling chamber, low temperature cooling chamber, cooling chamber's bridge bow, the top of high temperature cooling chamber communicates bottom pyrolysis vaporizer, high temperature cooling chamber and low temperature cooling chamber upper and lower settings, cooling chamber's bridge bow is arranged between high temperature cooling chamber and the low temperature cooling chamber, and described cooling chamber bridge bow comprises the bridge bow, steam chest, steam enters siphunculus; Bridge bow middle part forms steam chest, the lower openings of steam chest is towards low temperature cooling chamber, steam enters siphunculus and is arranged in the bridge bow, steam enters siphunculus one end and leads to steam chest, the other end stretches out outside the stove, described steam generation device comprises annular hollow metal casing, steam pockets and drum input tube, the drum output tube, annular hollow metal casing is installed in bottom of furnace body, the interior annular space chamber of annular hollow metal casing is connected to the low temperature cooling chamber bottom of material heat sink, form the body of heater water bag that sealing relatively is used for storage of water in the annular hollow metal casing case, body of heater water bag is connected to water inlet pipe and drum input tube, water inlet pipe communicates with water tank, drum input tube and steam pockets are connected, and the drum output tube of steam pockets enters the siphunculus the other end with the steam of material heat sink and communicates; Described raw gas take-up gear comprises the raw gas concentration chamber, the interior passage of deriving, the outer passage of deriving, derive the main channel, derive circuit, it is integrally formed that described raw gas concentration chamber is arranged on the top and the pyrolysis vaporizer of pyrolysis vaporizer, the interior passage of deriving is provided with in the quirk partition wall, pyrolysis vaporizer was led at the ringwall middle part in interior derivation feeder connection passed, the interior channel outlet that derives is passed the raw gas concentration chamber that interior ringwall leads to the pyrolysis vaporizer top, the described outer passage of deriving is provided with in the exterior wall of body of heater, the outer down feeder connection of deriving, the derivation feeder connection leads to pyrolysis vaporizer in the middle part of passing outer ring wall outside going up, the outer channel outlet that derives is passed the raw gas concentration chamber that outer ring wall leads to the pyrolysis vaporizer top, described derivation main channel is arranged in the exterior wall of body of heater of pyrolysis of coal stove, derivation main channel inlet communicates with the raw gas concentration chamber and extends up in the exterior wall top derivation circuit that body of heater is set again, and derives circuit and is provided with the raw gas export mouth; Describedly go into the furnace charge storehouse and be arranged on the body of heater top, the body of heater top is provided with into stove cloth passage, go into stove cloth passage upper end and go into the furnace charge storehouse and communicate, going into stove cloth passage lower end communicates with the pyrolysis vaporizer top of coal gangue pyrolysis installation, hinge cage sealing discharging device is arranged on the bottom, interior annular space chamber of annular hollow metal casing of the steam generation device of water-gas reaction device, the product feed bin places bottom of furnace body, connects hinge cage sealing discharging device on the product feed bin.
2. continuous coal gangue pyrolytic gasification stove as claimed in claim 1, it is characterized in that: described coal gangue pyrolysis installation also comprises the gas reversing system, described outer combustion gas heating unit is mainly some groups of identical related first combustion heaters of structure, second combustion heater constitutes, described first combustion heater mainly comprises first combustion chamber, first coal gas enters the arm and first regenerative heat exchanger, first coal gas enters arm and passes the body of heater exterior wall and lead in first combustion chamber, body of heater exterior wall that first combustion chamber is made by refractory materials and fire-resistant thermally conductive material are made the gas-fired quirk that pyrolysis vaporizer's outer ring wall and outer quirk partition wall surround a relative closure, described first regenerative heat exchanger comprises the first accumulation of heat chamber, first heat storage, the first air admission arm and the first combustion exhaust exhaust outlet, the first accumulation of heat chamber is arranged in the body of heater exterior wall, first heat storage is provided with in the first accumulation of heat chamber, the first accumulation of heat chamber, one end leads to bottom, first combustion chamber, the other end is connected to the first air admission arm and the first combustion exhaust exhaust outlet respectively, in like manner identical second combustion heater of structure also mainly comprises second combustion chamber, second coal gas enters the arm and second regenerative heat exchanger, the top of outer quirk partition wall is provided with the combustion chamber through hole between described first combustion chamber and next-door neighbour's second combustion chamber, and the combustion chamber through hole is connected first combustion chamber and next-door neighbour's second combustion chamber and constituted related one group; Gas-operated thermal bath facility is mainly by some groups of association the 3rd combustion heaters that structure is identical in described, the 4th combustion heater, its structure and related first burning heater, second burning heater is formed almost completely identical, the gas-fired quirk that the indoor ringwall of pyrolytic gasification and internal-quirk partition wall surround a relative closure is made by fire-resistant thermally conductive material in different is the 3rd combustion heater the 3rd combustion chamber, the 3rd coal gas enters arm and passes below the bar bow of center support bow and upwards lead to the 3rd combustion chamber, the 3rd accumulation of heat chamber is arranged on the body of heater of bar bow below, the 3rd heat storage places the 3rd accumulation of heat chamber, the 3rd accumulation of heat chamber one end passes to extend upward below the bar bow of center support bow and leads to bottom, the 3rd combustion chamber by extending passage, the 3rd accumulation of heat chamber the other end is connected to the 3rd air admission arm and the 3rd combustion exhaust exhaust outlet respectively, the top of internal-quirk partition wall is provided with chamber passage between described the 3rd combustion chamber and next-door neighbour's the 4th combustion chamber, and chamber passage is connected the 3rd combustion chamber and next-door neighbour's the 4th combustion chamber and constituted related one group; Described gas reversing system comprises dish, lower wall, the rotation reversing motor, air blower, gas fan, exhaust gas fan, lower wall is connected to an air person in charge respectively and first air is in charge of, second air is in charge of, a coal gas is responsible for and first gas manifold, second gas manifold, combustion exhaust is responsible for and second combustion exhaust is in charge of, first combustion exhaust is in charge of, wherein second combustion exhaust is in charge of to be in charge of to be in charge of with first air with first combustion exhaust and is in charge of with second air and the setting of first gas manifold and second gas manifold is just exchanged, last dish is fitted in the lower wall top, on coil respectively that correspondence is provided with the air pipe connecting, the coal gas pipe connecting, the combustion exhaust pipe connecting, thereby the rotation reversing motor drive to be gone up dish and is back and forth rotated on lower wall and realize that air is responsible for constantly to be in charge of to be in charge of with second air with first air and connect and cut off conversion, coal gas is responsible for constantly and is connected and cut off conversion with first gas manifold and second gas manifold, and combustion exhaust is responsible for constantly to be in charge of to be in charge of with first combustion exhaust with second combustion exhaust and is connected and cut off conversion; Wherein, described first air is in charge of with the first air admission arm, the 3rd air admission arm and is connected, simultaneously, described first gas manifold and first coal gas enter arm, the 3rd coal gas enters arm and connects, described first combustion exhaust was in charge of with the first combustion exhaust exhaust outlet, the 3rd combustion exhaust exhaust outlet and was connected simultaneously this moment; In like manner, second air is in charge of with the second air admission arm, the 4th air admission arm and is connected, simultaneously, second gas manifold and second coal gas enter arm, the 4th coal gas enters arm and connects, meanwhile, second burning gas is in charge of with the second combustion exhaust exhaust outlet, the 4th combustion exhaust exhaust outlet and is connected.
3. continuous coal gangue pyrolytic gasification stove as claimed in claim 2 is characterized in that: described coal gangue pyrolysis installation comprises that also two groups of bustle pipes are arranged on the periphery of body of heater, comprises the first air bustle pipe, the first coal gas bustle pipe, the first combustion exhaust bustle pipe; The second air bustle pipe, the second coal gas bustle pipe, the second combustion exhaust bustle pipe; Wherein said first air is in charge of by the first air bustle pipe and the first air admission arm, the 3rd air admission arm and is connected, simultaneously, described first gas manifold enters arm, the 3rd coal gas by the first coal gas bustle pipe and first coal gas and enters arm and connect, described first combustion exhaust was in charge of by the first combustion exhaust bustle pipe and was connected with the first combustion exhaust exhaust outlet, the 3rd combustion exhaust exhaust outlet simultaneously this moment; In like manner, second air is in charge of by the second air bustle pipe and the second air admission arm, the 4th air admission arm and is connected, simultaneously, second gas manifold enters arm, the 4th coal gas by the second coal gas bustle pipe and second coal gas and enters arm and connect, meanwhile, second burning gas is in charge of by the second combustion exhaust bustle pipe and is connected with the second combustion exhaust exhaust outlet, the 4th combustion exhaust exhaust outlet.
4. continuous coal gangue pyrolytic gasification stove as claimed in claim 2, it is characterized in that: be provided with the first one-way air valve between the first air admission arm of described first combustion heater and the first accumulation of heat chamber, the first one-way air valve allows air to flow into first combustion chamber from the first air admission pipe and the first accumulation of heat chamber; Be provided with the first unidirectional waste gas valve between the first combustion exhaust exhaust outlet and the first accumulation of heat chamber, the first unidirectional waste gas valve allows the gas-fired waste gas first accumulation of heat chamber of flowing through from first combustion chamber, discharges from the first combustion exhaust exhaust outlet at last; Be provided with the second one-way air valve between the second air admission arm of described second combustion heater and the second accumulation of heat chamber, the second one-way air valve allows air to flow into second combustion chamber from the second air admission pipe and the second accumulation of heat chamber; Be provided with the second unidirectional waste gas valve between the second combustion exhaust exhaust outlet and the second accumulation of heat chamber, the second unidirectional waste gas valve allows the gas-fired waste gas second accumulation of heat chamber of flowing through from second combustion chamber, discharges from the second combustion exhaust exhaust outlet at last; In like manner the 3rd combustion heater, the 4th combustion heater also comprise one-way air valve, unidirectional waste gas valve, are provided with identical with first combustion heater, second combustion heater.
5. continuous coal gangue pyrolytic gasification stove as claimed in claim 1 is characterized in that: described outer combustion gas heating unit mainly is divided into upper, middle and lower syllogic heating, and every section has 9 groups of identical first combustion heaters of structure, second combustion heater to constitute.
6. continuous coal gangue pyrolytic gasification stove as claimed in claim 1 is characterized in that: gas-operated thermal bath facility mainly is divided into upper and lower two-section type heating in described, and every section has 6 groups of identical the 3rd combustion heaters of structure, the 4th combustion heater to constitute.
7. continuous coal gangue pyrolytic gasification stove as claimed in claim 1 is characterized in that: cooling chamber's bridge bow of described material heat sink is partitioned into spoke shape at an angle with high temperature cooling chamber and low temperature cooling chamber axle center and arranges.
8. continuous coal gangue pyrolytic gasification stove as claimed in claim 1 is characterized in that: the steam chest of cooling chamber's bridge bow of described material heat sink is a cylindrical chamber, and the top of steam chest is provided with the semisphere blast cap.
9. continuous coal gangue pyrolytic gasification stove as claimed in claim 1 is characterized in that: the big up and small down funnel-form in interior annular space chamber of the annular hollow metal casing of described steam generation device.
10. continuous coal gangue pyrolytic gasification stove as claimed in claim 1 is characterized in that: the interior derivation feeder connection and outer derive passage following outer of deriving passage in the described raw gas take-up gear derive feeder connection, go up the outer feeder connection setting of staggering up and down of deriving.
CN201310121731.7A 2013-04-10 2013-04-10 Continuous coal gangue pyrolysis gasification furnace Active CN103215082B (en)

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