CN103409172B - Continuous external heated water gas gasification integrated method - Google Patents

Abstract

The invention relates to coal gasification technology, in particular to a continuous external heated water gas gasification integrated method for producing water gas by utilizing smokeless coal, and provides a continuous external heated water gas gasification integrated method, which integrates preheating and gasification of smokeless coal, temperature reduction of the products produced during gasification of the smokeless coal, and purification of burnt tail gas into the whole process, is large in water gas production, high in water gas production efficiency, low in energy consumption, and less in pollution. The adopted technical scheme is that smokeless coal is conveyed into a preheating bin for preheating and then gets into a gasification chamber of a gasification device; a heat source is supplied to the gasification chamber through a heating device; high temperature water vapor is contacted with and reacts with smokeless coal gasification materials to generate water gas; the solid products formed by the smokeless coal subjected to gasification heats the water vapor getting into the gasification chamber, and the generated water gas is discharged out and gets into the preheating bin for preheating; the water gas which is generated through reaction heats water to form water vapor, and then is filled in a material cooling chamber through a vapor inlet through pipe; waste water generated by burning of coal gas is purified, then is subjected to shower purification, and is discharged out. The integrated method has the advantages of large water gas production, low energy consumption and less pollution.

Description

Continuous external heating type water-gas gasification integrated approach

Technical field

The present invention relates to the technology of gas maked coal, particularly utilize the continuous external heating type water-gas gasification integrated approach of smokeless char water-gas processed.

Background technology

Water-gas is a kind of low-heat value gas that water vapour obtains by the hard coal with scorching hot or coke effect, and main component is hydrogen and carbon monoxide, and following water-gas reaction mainly occurs for carbon and steam:

C+H2O===(high temperature) CO+H2

More than reaction is thermo-negative reaction, therefore must be to heat supply in vapourizing furnace.Conventionally, first send air to enter stove, burn part of fuel, heat is stored in fuel bed and regenerator, then steam is passed into scorching hot fuel bed and react.Due to endothermic heat of reaction, when fuel bed and regenerator temperature drop to certain temperature, send again air to enter stove and heat up, so circulation.

Industrial at present, the production of water-gas generally adopts resting period formula fixed bed production technology.Furnace construction adopts UGI(with U.S.'s associating gas, to improve the pattern of company's (United Gas Improvement Compan name) vapourizing furnace, and its advantage is that equipment is simple, easy handling; Shortcoming is: because of atmospheric operation production intensity low, during the synthetic gas of need of production high pressure, energy consumption is high, production efficiency is low, the about 1000m3/h of water-gas generating capacity of every square metre of burner hearth area, to coal, require stricter, conventionally must adopt hard coal or the coke that has certain particle size requirement, process pipe more complicated while adopting periodical operation.For UGI vapourizing furnace, country has prohibited new upper fixed intermittent layer gasification technique (UGI), in the notice > > (send out and change No. 1350, industry) that < < National Development and Reform Commission on July 7th, 2006 of National Development and Reform Committee develops in a healthy way about reinforcement Coal Chemical Engineering Project implementation management promotion industry, this is had to clear and definite requirement, in the long term, due to the raw material restricted gender of UGI gasification itself, backward in technique and environmental issue, be badly in need of being substituted by advanced Coal Gasification Technology.

The inventor is the research to the technical matters of water-gas gasification for a long time, innovates a set of brand new technical, the hard coal that the present invention is also applicable to certainly or coke production water-gas technology of utilizing the smokeless char after low-rank coal (brown coal) pyrolysis to produce water-gas.

Summary of the invention

The present invention overcomes the deficiency that prior art exists, technical problem to be solved has been to provide and a kind of product cooling, combustion tail gas after smokeless char preheating, gasification, smokeless char gasification are purified and assemble a whole set of technique, water-gas output is large, gas making efficiency is high, and energy consumption is low, pollute little continuous external heating type water-gas gasification integrated approach.

For solving the problems of the technologies described above, the technical scheme adopting is: continuous external heating type water-gas gasification integrated approach, and the equipment that the method relates to comprises that continuous external heating type water-gas vapourizing furnace, tail gas water washes one's hair cleaner; Described continuous external heating type water-gas vapourizing furnace comprises pre-heating cabin, external-heat water-gas gasification installation, helix closed removal device, described external-heat water-gas gasification installation comprises that gasification installation, material cooling chamber, steam enter siphunculus, hot gas heating-type vapor generating unit, and step is:

(1), low-rank coal pyrolysis process is obtained to smokeless, anhydrous, low ash, highly active smokeless char is delivered to preheating in pre-heating cabin, then enters in the vaporizer of gasification installation;

(2), the outer gas-operated thermal bath facility of the gasification installation by external-heat water-gas gasification installation, the duplex combustion chamber that interior gas-operated thermal bath facility adopts and commutation accumulation of heat heating means light purify after coal gas, for vaporizer provides thermal source, smokeless char gasifies in the hot environment of vaporizer;

(3), by passing into high-temperature water vapor from vaporizer bottom, and the smokeless char gasification materiel hot with high temperature in vaporizer contact, the charcoal in the solid product after smokeless char gasification meets and carries out water-gas reaction generation water-gas with superheated vapour;

(4), solid product after smokeless char gasification falls into material cooling chamber from vaporizer, to upwards enter the water vapor of vaporizer through material cooling chamber, be again heated as overheated high-temperature water vapor, again the solid product after smokeless char gasification is lowered the temperature simultaneously, according to smokeless char gasification degree, control the unlatching of helix closed removal device in good time or close, solid product after smokeless char high-temperature gasification cooling in material cooling chamber is entered in product feed bin, control again in good time pre-heating cabin charging valve unlatching or close, smokeless char after preheating is added to the vaporizer of gasification installation,

(5), water-gas reaction generates water-gas and derives from vaporizer by the water-gas take-up gear arranging on body of heater, enters pre-heating cabin to smokeless char preheating, i.e. the preheating of above-mentioned the 1st step;

(6), water-gas reaction generates water-gas derives from vaporizer by the water-gas take-up gear arranging on body of heater, enter hot gas heating-type vapor generating unit heating water and form water vapor, the water vapor again hot gas heating-type vapor generating unit being produced enters siphunculus by steam and passes into material cooling chamber, supplement because of the required a large amount of water vapors of water-gas reaction, water-gas reaction can uninterruptedly be carried out continuously;

(7), adopt duplex combustion chamber and commutation accumulation of heat heating means to light the coal gas after purification the outer gas-operated thermal bath facility of above-mentioned the 2nd step, interior gas-operated thermal bath facility, the waste gas of generation pass into tail gas water wash one's hair cleaner carry out water wash one's hair purify after discharge.

Described outer gas-operated thermal bath facility duplex combustion chamber and commutation accumulation of heat heating means, the method relates to equipment and comprises outer gas-operated thermal bath facility, gas reversing system, outer gas-operated thermal bath facility comprises the first combustion heater, second combustion heater of at least one group of identical association of structure, the first described combustion heater mainly comprises that the first combustion chamber, the first coal gas enter arm and the first regenerative heat exchanger, the second combustion heater structure also comprises that the second combustion chamber, the second coal gas enter arm and the second regenerative heat exchanger, and the step of the method is:

(1), gas reversing system blasts the first regenerative heat exchanger by air, enter heating after the first regenerative heat exchanger heating after, enter in the first combustion chamber, gas reversing system blasts purified gas in the first combustion chamber and burns, waste gas in the first combustion chamber after purified gas burning enters into the second combustion chamber, then by gas reversing system, is discharged after the second regenerative heat exchanger heat absorption;

(2), reach and set combustion time, gas reversing system blasts the second regenerative heat exchanger by air, enter heating after the second regenerative heat exchanger heating after, enter in the second combustion chamber, gas reversing system blasts purified gas in the second combustion chamber and burns, waste gas in the second combustion chamber after purified gas burning enters into the first combustion chamber, then by gas reversing system, is discharged after the first regenerative heat exchanger heat absorption.

Described interior gas-operated thermal bath facility duplex combustion chamber and commutation accumulation of heat heating means, the method relates to equipment and comprises interior gas-operated thermal bath facility, gas reversing system, interior gas-operated thermal bath facility comprises the 3rd combustion heater, the 4th combustion heater of at least one group of identical association of structure, the 3rd described combustion heater mainly comprises that the 3rd combustion chamber, the 3rd coal gas enter arm and the 3rd regenerative heat exchanger, the 4th combustion heater structure also comprises that the 4th combustion chamber, the 4th coal gas enter arm and the 4th regenerative heat exchanger, and the step of the method is:

(1), gas reversing system blasts the 3rd regenerative heat exchanger by air, enter heating after the 3rd regenerative heat exchanger heating after, enter in the 3rd combustion chamber, gas reversing system blasts purified gas in the 3rd combustion chamber and burns, waste gas in the 3rd combustion chamber after purified gas burning enters into the 4th combustion chamber, then by gas reversing system, is discharged after the 4th regenerative heat exchanger heat absorption;

(2), reach and set combustion time, gas reversing system blasts the 4th regenerative heat exchanger by air, enter heating after the 4th regenerative heat exchanger heating after, enter in the 4th combustion chamber, gas reversing system blasts purified gas in the 4th combustion chamber and burns, waste gas in the 4th combustion chamber after purified gas burning enters into the 3rd combustion chamber, then by gas reversing system, is discharged after the 3rd regenerative heat exchanger heat absorption.

The present invention is swashed and obtains water-gas mutually by the smokeless char after water vapor and scorching hot low-rank coal (brown coal) pyrolysis, and water-gas output is large, and hydrogen content is high, carbon monoxide and hydrogen reasonable ratio, and other component content is low, is desirable synthetic gas product; The present invention utilizes the waste heat of high-temperature water gas to come heating water to become water vapor; realization is produced required water vapor to water-gas and is supplemented; utilize the waste heat of high-temperature water gas to entering the smokeless char preheating of stove simultaneously; water-gas gasification is carried out continuously; be different from existing gap method, production efficiency greatly improves, and the present invention also washes one's hair emission abatement to the waste gas after purified gas combustion heating through water; the pollution of minimizing to air, protection of the environment.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.

Fig. 1 is continuous external heating type water-gas vapourizing furnace schematic diagram of the present invention;

Fig. 2 is gas reverser schematic diagram of the present invention;

Fig. 3 coils schematic diagram on gas reverser of the present invention;

Fig. 4 is gas reverser lower wall schematic diagram of the present invention;

Fig. 5 is A-B place cross-sectional schematic in Fig. 3;

Fig. 6 is gas reverser of the present invention and combustion heater pipe network connection diagram;

Fig. 7 is continuous external heating type water-gas vapourizing furnace schematic cross-section one of the present invention, is also t-t place schematic cross-section in Fig. 1;

Fig. 8 is continuous external heating type water-gas vapourizing furnace schematic cross-section two of the present invention, is also u-u place schematic cross-section in Fig. 1;

Fig. 9 is continuous external heating type water-gas vapourizing furnace schematic cross-section three of the present invention, is also v-v place schematic cross-section in Fig. 1;

Figure 10 is continuous external heating type water-gas vapourizing furnace schematic cross-section four of the present invention, is also x-x place schematic cross-section in Fig. 1;

Figure 11 is continuous external heating type water-gas vapourizing furnace schematic cross-section five of the present invention, is also y-y place schematic cross-section in Fig. 1;

Figure 12 is continuous external heating type water-gas vapourizing furnace schematic cross-section six of the present invention, is also z-z place schematic cross-section in Fig. 1;

Figure 13 is industry control central electrical connection diagram of the present invention;

Figure 14 is that continuous external heating type water-gas gasification integration unit of the present invention forms schematic diagram;

Figure 15 is continuous external heating type water-gas vapourizing furnace schematic cross-section seven of the present invention, is also w-w place schematic cross-section in Fig. 1;

Figure 16 is the cross-sectional schematic of feeding chamber of the present invention, is also a-a place schematic cross-section in Figure 17;

Figure 17 is feeding chamber cross sectional representation of the present invention, is also b-b place schematic cross-section in Figure 19;

Figure 18 is the water gas pipe line schematic diagram of feeding chamber of the present invention, is also c-c place schematic cross-section in Figure 19;

Figure 19 is feeding chamber schematic diagram of the present invention;

Figure 20 is that the atomized spray that tail gas water of the present invention is washed one's hair cleaner is arranged in the form of a ring schematic diagram in purifying cylindrical shell, is also d-d place schematic cross-section in Figure 14.

Embodiment

The specific embodiment of continuous external heating type water-gas gasification composite technology of the present invention is mainly being introduced below in detail.

First part's low-rank coal granularity is controlled

Low-rank coal (brown coal) pyrolysis process is obtained to smokeless, anhydrous, the low ash of 10 ~ 50mm granularity, highly active smokeless char as water-gas gasified raw material, in this size range, smokeless char raw material water-gas reaction is more abundant, but this does not form the restriction to needed low-rank coal (brown coal) to the present invention, the present invention is equally applicable to hard coal or coke to carry out water-gas reaction.

The preheating of second section smokeless char

As shown in Figure 19, Figure 16: pre-heating cabin 1, comprises housing 11, hot gas interchanger 13, blanking bin 14; In housing 11, be formed for the feed bin 111 of smokeless char preheating, feed bin 111 relative closure tops are only provided with opening for feed 112, at opening for feed 112 places, be provided with sealing infeed belt conveyor 17(and refer to transfer roller belt being covered with its circumferential closed barrel-shaped casing of a both ends open, prevent that smokeless char is scattered, keep Working environment neat and tidy), blanking bin 14 is arranged on housing 11 bottoms and communicates with feed bin 111, blanking bin 14 is for temporarily depositing the smokeless char after preheating, and blanking bin 14 bottoms connect the charging valve 15 with gas sealing function.

As shown in Figure 14, Figure 16, Figure 17, Figure 19, hot gas interchanger 13 comprises that high temperature hot gas admission passage 131, high temperature hot gas enter chamber 132, radiating pipe 133, radiating pipe serial connection passage 134, cryogenic gas discharge chamber 136; High temperature hot gas admission passage 131 one end are connected with water-gas bustle pipe 85, high temperature hot gas admission passage 131 the other ends enter chamber 132 with high temperature hot gas and communicate, high temperature hot gas enters on the sidewall that chamber 132 is arranged on housing 11, cryogenic gas discharge chamber 136 is arranged on high temperature hot gas and enters on the relative sidewall in chamber 132, and cryogenic gas discharge chamber 136 is provided with cryogenic gas exhaust channel 138; Several radiating pipe serial connection passages 134 are parallel feed bin 111 inside that are transverse in housing 11 between two, being connected on high temperature hot gas enters between chamber 132 and cryogenic gas discharge chamber 136, one end 1341 of upper radiating pipe serial connection passage 134 and high temperature hot gas enter that chamber 132 communicates and the other end 1342 seals, one end 1341 sealings of next radiating pipe serial connection passage 134 and the other end 1342 communicates with cryogenic gas discharge chamber 136, the rest may be inferred.

As Figure 19, Figure 16, shown in Figure 17, several radiating pipes 133 also adopt metallic substance to make, several radiating pipes 133 are spaced on radiating pipe serial connection passage 134, radiating pipe 133 is " U " type, one end is connected on parallel upper radiating pipe serial connection passage 134, the other end is connected on parallel next radiating pipe serial connection passage 134, parallel between two radiating pipe serial connection passage 134 is connected mutually, be about to high temperature hot gas and enter chamber 132 and 136 connections of cryogenic gas discharge chamber, this example arranges many radiating pipes 133 and radiating pipe serial connection passage 134, contact area with increase with smokeless char, raising is to the pre-thermo-efficiency of smokeless char.

As shown in Figure 19, Figure 16, radiating pipe 133 is inverted U interval and is connected on radiating pipe serial connection passage 134, radiating pipe serial connection passage 134 is two rows and arranges, certainly can suitably increase or reduce the quantity of the quantity of radiating pipe 133 on radiating pipe serial connection passage 134 and radiating pipe serial connection passage 134 itself, this as required the smokeless char of preheating the situations such as amount, humidity and temperature and determine.

As shown in Figure 19, Figure 16, the top that radiating pipe 133 is inverted U is wedge 1331, and this is conducive to being scattered of smokeless char.

As shown in Figure 13, Figure 14, by bucket elevator 18, be placed in one end of rotary conveyor 17, the other end of rotary conveyor 17 is placed in opening for feed 112 places, bucket elevator 18, infeed belt conveyor 17, charging valve 15 are connected with industry control center 90, by industry control center 90, are automatically controlled by the work of bucket elevator 18, infeed belt conveyor 17, charging valve 15.

This routine smokeless char pre-heating mean is:

(1), as shown in Figure 14, Figure 19, by bucket elevator 18, low-rank coal (brown coal) pyrolysis process is obtained to smokeless, anhydrous, low ash, highly active smokeless char and deliver to sealing infeed belt conveyor 17, sealing infeed belt conveyor 17 is sent in the feed bin 111 of housing 11 by smokeless char from the coal inlet 112 of feed bin 111;

(2) the hot high-temperature water gas, simultaneously the mutually radical row water-gas reaction of the smokeless carbon of high temperature and steam being produced passes into high temperature hot gas from high temperature hot gas admission passage 131 and enters chamber 132, by radiating pipe, being connected in series passage 134 again flows in radiating pipe 133, by another the adjacent radiating pipe serial connection passage 134 being connected with radiating pipe 133, flow in cryogenic gas discharge chamber 136 again, last cryogenic gas exhaust channel 138 is discharged

(3) the lower coal bunker 14 that, the smokeless carbon after preheating finally falls into housing 11 bottoms is temporarily deposited, by charging valve 15 start or stop with close water-gas reaction operation together with delivering to down, from and by sealing infeed belt conveyor 17, constantly to the feed bin 111 of housing 11, supplement new smokeless char pellet, realize the continuously dehydrating of smokeless char dry.

This example is carried out preheating by high-temperature water gas to the smokeless carbon in feed bin 111, has both utilized the heat energy of high-temperature water gas, high-temperature water gas outflow temperature is minimized again simultaneously, does not need to consume the extra energy, saves production cost, recycling economy.

In order to keep the neat and tidy of environment, the tail gas after burning is washed one's hair cleaner 16 purifying and cooling by tail gas water and is processed rear qualified discharge.

As shown in Figure 14, Figure 20, tail gas water is washed one's hair cleaner 16 and is comprised that purification cylindrical shell 161, atomized spray 162, stainless steel filter wire stratum reticulare 163, tank 165, water reservoir 166, sprinkling water pump 167, tail gas pod 164, tail gas enter pipe 169; Purify cylindrical shell 161 tops exhaust port 168 is set, atomized spray 162, stainless steel filtration silk screen 163, tail gas pod 164, tank 165 all arrange and purify in cylindrical shell 161; Water reservoir 166, sprinkling water pump 167 all arrange and purify outside cylindrical shell 161; Tank 165 arranges the bottom that purifies cylindrical shell 161, tank 165 bottoms are provided with spoil disposal pipeline 1650, tail gas pod 164 is arranged on the top of tank 165, tail gas pod 164 connects tail gas and enters pipe 169, tail gas enters pipe 169 one end and is arranged on the top of tank 165, and tail gas enters pipe 169 the other ends and passes and purify cylindrical shell 161 and communicate with the external world; Above tail gas pod 164, be provided with stainless steel filter wire stratum reticulare 163, above stainless steel filter wire stratum reticulare 163, atomized spray 162 is set, atomized spray 162 is connected on water inlet pipe 1601, water inlet pipe 1601 stretches out to purify outside cylindrical shell 161 to be connected with water inlet bustle pipe 1602, water inlet bustle pipe 1602 is for purifying around the home cylindrical shell 161 peripheries in the form of a ring, water inlet bustle pipe 1602 is responsible for 160 by water inlet and is joined with sprinkling water pump 167, spray water pump 167 and be connected to water absorption tube 1603, water absorption tube 1603 stretches in water reservoir 166; Water reservoir 166 also communicates with tank 165 through purifying cylindrical shell 161 by communicating pipe 1604.

As shown in figure 14, at purification cylindrical shell 161 walls near above stainless steel filter wire stratum reticulare 163, offer access opening 1611, the one, facilitate workman to enter and purify the interior atomized spray 162 to damage of cylindrical shell 161, stainless steel filter wire stratum reticulare 163 keeps in repair, the 2nd, can be regularly by the artificial plaster of alluvial on stainless steel filter wire stratum reticulare 163 of removing, purification cylindrical shell 161 walls above tank 165 offer water-in 1612, by injecting clean water in 1612 pairs of tanks 165 of water-in, assurance is changed the sewage of dust suction in tank 165, at purification cylindrical shell 161 walls near tank 165 edges, offer into water overflow port 1613, the unnecessary water of tank 165 can be discharged from here, avoid the water in tank 165 to flood too much the opening of tail gas pod 164, causing tail gas to enter is obstructed.

As Figure 20, shown in Figure 14, for to filtering better dust in tail gas, a plurality of atomized spray 162 161 are arranged in the form of a ring in purifying cylindrical shell, by many water inlet pipes 1601, stretch out to purify outside cylindrical shell 161 and connect with water inlet bustle pipe 1602, in addition can also be in purifying cylindrical shell 161 from bottom to top interval many group atomized spray 162 are set, stainless steel filter wire stratum reticulare 163, and from bottom to top, the order number of stainless steel filter wire stratum reticulare 163 increases gradually, this tail gas water is washed one's hair cleaner 16 and is provided with the atomized spray 162 of 3 groups, stainless steel filter wire stratum reticulare 163, this not only can obtain cleaner tail gas, and can also lower the temperature to hot tail gas.

As shown in figure 13, spray water pump 167 and be connected with industry control center 90, by the work of industry control center 90 automatic spraying water pumps 167.

The Principle Method that this routine tail gas water is washed one's hair purification is:

(1), the tail gas after burning enters pipe 169 by tail gas and enters the tail gas pod 164 purifying in cylindrical shell 161, blow to the water surface in the tank 165 of below, the dust that in tail gas, particle is larger, through the absorption of flow surface, sinks to 165 ends of tank and discharges by spoil disposal pipeline 1650 in the water of immersion tank;

(2) tail gas, after flow surface absorption upwards filters through stainless steel filter wire stratum reticulare 163, the most of dust of elimination tail gas;

(3), through stainless steel filter wire stratum reticulare 163, filter after tail gas enter again the water smoke layer that atomized spray 162 water sprays form, in tail gas, through water smoke layer, clean by purifying exhaust port 168 qualified discharges at cylindrical shell 161 tops.

For allow discharge tail gas in dustiness be reduced to minimum, on it, (3) further supplements and is: after filtering through stainless steel filter wire stratum reticulare 163, tail gas enters the water smoke layer that atomized spray 162 forms again, in tail gas, after water smoke layer cleans, upwards entering the stainless steel filter wire stratum reticulare 163 that order number is larger filters again again, the water smoke layer again forming through the larger stainless steel filter wire stratum reticulare 163 top atomized spray 162 of this order number cleans, finally by purifying exhaust port 168 qualified discharges at cylindrical shell 161 tops.

Third part smokeless char high-temperature gasification and water-gas gasification are sent out should

The heating of first segment smokeless char high-temperature gasification

As shown in Figure 1, gasification installation 6 is arranged on body of heater 91 middle parts, mainly comprises vaporizer 61, outer gas-operated thermal bath facility 64, interior gas-operated thermal bath facility 67, gas reversing system 66, central supported bow 65, as Fig. 1, Fig. 7, Fig. 8, shown in Fig. 9: vaporizer 61 is by ringwall 612 in fire-resistant thermally conductive material, outer ring wall 611 forms an annulus, vaporizer 61 tops with enter stove cloth passage 921 and communicate, being centered around vaporizer outer ring wall 611 rings outer is outer gas-operated thermal bath facility 64, in vaporizer, in ringwall 612 rings, be interior gas-operated thermal bath facility 67, wherein outer gas-operated thermal bath facility 64 is mainly first combustion heater 62 of some groups of (9 groups of this examples) identical associations of structure, the second combustion heater 60 forms, as Fig. 1, Fig. 8, shown in Fig. 9: because smokeless char need to reach certain temperature and could gasify, vaporizer 61 is divided into epimere preheating from top to bottom, and heating is continued in stage casing, and hypomere is mainly gasification reaction three phases, so vaporizer 61 highly needs design higher, corresponding outer gas-operated thermal bath facility 64 is also mainly divided into, in, lower Three-section type heating, every section of first combustion heater 62 by 9 groups of identical associations of structure, the second combustion heater 60 forms, and interior gas-operated thermal bath facility 67 is mainly divided into, lower two-section type heating, every section by 6 groups of identical the 3rd combustion heaters 68 mutually of structure, the 4th combustion heater 69 forms.

As Fig. 1, Fig. 9 show, the first described combustion heater 62 mainly comprises that the first combustion chamber 621, the first coal gas enter arm 622 and the first regenerative heat exchanger 624, the first coal gas and enters arm 622 and lead in the first combustion chamber 621 through body of heater 91 exterior walls.

As shown in Fig. 1, Fig. 9, body of heater 91 exterior walls that the first combustion chamber 621 is built into by refractory materials and fire-resistant thermally conductive material are built into the gas-fired quirk that vaporizer outer ring wall 611 and outer quirk partition wall 625 surround a relative closure.

As shown in Fig. 1, Fig. 9, the first regenerative heat exchanger 624 comprises that the first accumulation of heat chamber 626, the first heat storage 623, the first air enter 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, the first heat storage 623 arranges in the first accumulation of heat chamber 626,621 bottoms, the first combustion chamber are led in the first 626 one end, accumulation of heat chamber, and the other end is connected to respectively the first air and enters arm 627 and the first combustion exhaust exhaust outlet 628.

As shown in Figure 9, at the first air, enter and between arm 627 and the first accumulation of heat chamber 626, be provided with the first one-way air valve 629, the first one-way air valves 629 and allow air to enter pipe the 627 and first accumulation of heat chamber 626 from the first air to flow into the first combustion chambers 621; 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 the first combustion chamber 621, finally from the first combustion exhaust exhaust outlet 628, discharge (certainly, adopt gas reversing system 66 as described below, when air supervisor the 667 and first air, be in charge of 6671 connections, air supervisor the 667 and second air is in charge of 6673 in cutting off; Meanwhile, combustion exhaust supervisor 669 is in charge of 6691 with the first combustion exhaust and also cuts off mutually, and corresponding combustion exhaust supervisor the 669 and second combustion exhaust is in charge of 6693 in being connected, can play the effect that replaces the first one-way air valve 629 and the first unidirectional waste gas valve 620).

In like manner, as shown in Figure 9: identical the second combustion heater 60 of structure mainly comprises that the second combustion chamber 601, the second coal gas enter arm 602 and the second regenerative heat exchanger 604.

As shown in Figure 9: body of heater 91 exterior walls that the second combustion chamber 601 is built into by refractory materials and fire-resistant thermally conductive material are built into the gas-fired quirk that vaporizer outer ring wall 611 and outer quirk partition wall 625 surround a relative closure.

As shown in Fig. 1, Fig. 9: the second coal gas enters arm 602 and leads in the second combustion chamber 601 through body of heater 91 exterior walls.

As shown in Figure 9: the second regenerative heat exchanger 604 comprises the second accumulation of heat chamber 606, the second heat storage 603, the second air enters 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, the second heat storage 603 arranges in the second accumulation of heat chamber 606, 601 bottoms, the second combustion chamber are led in the second 606 one end, accumulation of heat chamber, the other end is connected to respectively the second air and enters arm 607 and the second combustion exhaust exhaust outlet 608, at the second air, enter between arm 607 and the second accumulation of heat chamber 606 and be provided with the second one-way air valve 609, the second one-way air valve 609 allows air to enter pipe the 607 and second accumulation of heat chamber 606 from the second air and flows into the second combustion chamber 601, 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 the second combustion chamber 601, finally from the second combustion exhaust exhaust outlet 608, discharge (certainly, adopt gas reversing system 66 as described below, when air supervisor the 667 and first air is in charge of 6671 cut-outs, air supervisor the 667 and second air is in charge of 6673 in connecting, meanwhile, combustion exhaust supervisor the 669 and first combustion exhaust is in charge of 6691 and is also connected, and corresponding combustion exhaust supervisor 669 is in charge of 6693 also cut-outs mutually with the 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 shown in Fig. 1, Fig. 8, between the second combustion chamber 601 of the first combustion chamber 621 and next-door neighbour, the top of outer quirk partition wall 625 is provided with combustion chamber through hole 6251, combustion chamber through hole 6251 is connected the second combustion chamber 601 of the first combustion chamber 621 and next-door neighbour to form associated one group, this example China and foreign countries gas-operated thermal bath facility 64 is provided with quirk partition wall 625 outside 18 roads altogether, forms 9 groups of associated burning groups; In addition, as shown in Figure 1; Because vaporizer 61 is highly higher, wherein outer gas-operated thermal bath facility 64 is mainly divided into upper, middle and lower segment formula heating, and every section by 9 groups of structures, identical and associated the first combustion heater 62, the second combustion heater 60 form.

As shown in Figure 1: on body of heater 91 exterior walls, each combustion chamber is also provided with chamber temperature monitoring holes 6201 and combustion chamber spy hole 6202, combustion chamber spy hole 6202 is convenient to the gas-fired situation that technician directly observes each combustion chamber, in chamber temperature monitoring holes 6201, be provided with chamber temperature table 6203 for the temperature monitoring to combustion chamber, so that the assessment to gasification process.

As Figure 13 shows: chamber temperature table 6203 is connected with industry control center 90, by industry control center 90, automatically gather the temperature data of chamber temperature table 6203.

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 respectively air supervisor 667 and first air and is in charge of 6671, the second air is in charge of 6673, coal gas supervisor 668 and first gas manifold 6681, the second gas manifold 6683, combustion exhaust supervisor 669 and second combustion exhaust is in charge of 6693, the first combustion exhaust is in charge of 6691, wherein, the second combustion exhaust is in charge of the 6693 and first combustion exhaust and is in charge of the 6691 and first air and is in charge of the 6671 and second air and is in charge of the setting of the 6673 and first gas manifold 6681 and the second gas manifold 6683 and just exchanges (Fig. 2, Fig. 4, shown in Fig. 6).

As Fig. 3, Fig. 4, Fig. 5, shown in Fig. 6: above coil 661 and be fitted in lower wall 662 tops, upper dish 661 respectively correspondence is provided with air pipe connecting 6672, coal gas pipe connecting 6682, combustion exhaust pipe connecting 6692, thereby rotation reversing motor 663 drives upper dish 661 reciprocating rotation on lower wall 662 to realize air supervisor 667 to be constantly in charge of the 6671 and second air with the first air and to be in charge of 6673 and to connect and cut off conversion, coal gas supervisor 668 constantly connects and cuts off conversion with the first gas manifold 6681 and the second gas manifold 6683, combustion exhaust supervisor 669 is constantly in charge of the 6693 and first combustion exhaust with the second combustion exhaust and is in charge of 6691 and connects and cut off conversion (be in charge of the 6671 and second air to be in charge of the switching of the 6673 and first gas manifold 6681 and the second gas manifold 6683 just contrary with the first air).

As shown in Fig. 1, Fig. 6, in the periphery of body of heater 91, be also provided with two groups of bustle pipes, comprise the first air bustle pipe 6674, the first coal gas bustle pipe 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 shown in Fig. 1, Fig. 6, the first air bustle pipe 6674 is in charge of the 6671 and first air by the first air and is entered arm 627 and couple together, by the first air be in charge of the 6671, first air bustle pipe 6674, the first air enters arm 627, the first accumulation of heat chamber 626 and the first combustion chamber 621 and forms same path;

Meanwhile, the first coal gas bustle pipe 6684 enters arm 622 by the first gas manifold 6681 and the first coal gas and couples together, and the first gas manifold 6681, the first coal gas bustle pipe 6684, the first coal gas is entered to arm 622 and the first combustion chamber 621 forms same path;

Simultaneously now, the first combustion exhaust bustle pipe 6694 is the first combustion exhaust to be in charge of to the 6691 and first combustion exhaust exhaust outlet 628 couple together, and the first combustion exhaust is in charge of to the 6691, first combustion exhaust bustle pipe 6694, the first combustion exhaust exhaust outlet 628, the same path of the first 626Yu combustion chamber, accumulation of heat chamber 621 formation.

In like manner; the second air bustle pipe 6675 is in charge of the 6673 and second air by the second air and is entered arm 607 and couple together, by the second air be in charge of the 6673, second air bustle pipe 6675, the second air enters arm 607, the second accumulation of heat chamber 606 and the second combustion chamber 601 and forms same path;

Meanwhile, the second coal gas bustle pipe 6685 enters arm 602 by the second gas manifold 6683 and the second coal gas and couples together, and the second gas manifold 6683, the second coal gas bustle pipe 6685, the second coal gas is entered to arm 602 and the second combustion chamber 601 forms same path;

Meanwhile, the second combustion exhaust bustle pipe 6695 is in charge of the 6693 and second combustion exhaust exhaust outlet 608 by the second burning gas and is coupled together, and the second combustion exhaust is in charge of to the 6693, second combustion exhaust bustle pipe 6695, the second combustion exhaust exhaust outlet 608, the second accumulation of heat chamber 606 and the second combustion chamber 601 and forms same path.

In addition, as shown in figure 14, the tail gas pod 164 that exhaust gas fan 666 is washed one's hair cleaner 16 by pipeline 6661 and tail gas water communicates; Shown in Figure 13; this example also comprises that gas reversing system controller 906 is for controlling rotation reversing motor 663, air blower 664, gas fan 665, exhaust gas fan 666; gas reversing system electric controller 906 is connected with upper industry control center 90 again; certainly from electric control theory; in this example, rotate reversing motor 663, air blower 664, gas fan 665, exhaust gas fan 666 and controlled by industry control center 90, so the restriction that gas reversing system controller 906 does not form this routine protection domain is set herein.

Shown in as shown in Figure 1, Figure 2～Fig. 5, Fig. 6, Figure 13: the heating means of this outer gas-operated thermal bath facility 64 are:

(1) industry control center 90 startup rotation reversing motors 663 drive the rotation on lower wall 662 of upper dish 661, and air supervisor the 667 and first air is in charge of 6671 connections, and air supervisor the 667 and second air is in charge of 6673 in dissengaged positions; Meanwhile, coal gas supervisor the 668 and first gas manifold 6681 is also connected, and coal gas supervisor the 668 and second gas manifold 6683 is in dissengaged positions; Meanwhile, combustion exhaust supervisor 669 is in charge of 6691 with the first combustion exhaust and also cuts off mutually, and corresponding combustion exhaust supervisor the 669 and second combustion exhaust is in charge of 6693 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 by air blast air supervisor 667, air enter successively through air pipe connecting 6672, the first air be in charge of the 6671, first air bustle pipe 6674, the first air enters arm 627 and enters into the first accumulation of heat chamber 626, after the heat that utilizes the first heat storage 623 to discharge heats air, enter in the first combustion chamber 621, simultaneously, gas fan 665 blasts coal gas supervisor 668 by purified gas, coal gas enters coal gas pipe connecting 6682 successively, the first gas manifold 6681, the first coal gas bustle pipe 6684, the first coal gas enters arm 622 and enters in the first combustion chamber 621 and burn, meanwhile, because combustion exhaust supervisor 669 is in charge of 6691 in phase dissengaged positions with the first combustion exhaust, and corresponding combustion exhaust supervisor the 669 and second combustion exhaust is in charge of 6693 in the state of being connected, so the waste gas in the first combustion chamber 621 after gas-fired can only enter into the 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 the 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, the second combustion exhaust is in charge of 6693, combustion exhaust pipe connecting 6692, combustion exhaust supervisor 669 discharges by exhaust gas fan 666,

(3) reach and set combustion time, industry control center 90 starts rotation reversing motor 663 and drives upper dish 661 to rotate backward on lower wall 662, air supervisor the 667 and first air is in charge of 6671 cut-outs, air supervisor the 667 and second air is in charge of 6673 in on-state, simultaneously, coal gas supervisor 668 also cuts off mutually with the first gas manifold 6681, coal gas supervisor the 668 and second gas manifold 6683 on-states, meanwhile, combustion exhaust supervisor the 669 and first combustion exhaust is in charge of 6691 and is also connected, and corresponding combustion exhaust supervisor the 669 and second combustion exhaust is in charge of 6693 also phase dissengaged positions,

(4) air blower 664 by air blast air supervisor 667, air enter successively through air pipe connecting 6672, the second air be in charge of the 6673, second air bustle pipe 6675, the second air enters arm 607 and enters into the second accumulation of heat chamber 606, after the heat that utilizes the second heat storage 603 in the second accumulation of heat chamber 606 to discharge heats air, enter in the second combustion chamber 601, simultaneously, gas fan 665 blasts coal gas supervisor 668 by purified gas, coal gas enters coal gas pipe connecting 6682 successively, the second gas manifold 6683, the second coal gas bustle pipe 6685, the second coal gas enters arm 602 and enters in the second combustion chamber 601 and burn, meanwhile, because combustion exhaust supervisor the 669 and first combustion exhaust is in charge of 6691 and is connected, and corresponding combustion exhaust supervisor the 669 and second combustion exhaust is in charge of 6693 in phase dissengaged positions, so the waste gas in the second combustion chamber 601 after gas-fired can only enter by the combustion chamber through hole 6251 on outer quirk partition wall 625 tops in the first combustion chamber 621, again through the first accumulation of heat chamber 626, the first heat storage 603 in the first accumulation of heat chamber 626 carries out after absorbing and cooling temperature, finally from the first combustion exhaust exhaust outlet 628, the first combustion exhaust bustle pipe 6694, the first combustion exhaust is in charge of 6691, combustion exhaust supervisor 669 discharges by exhaust gas fan 666, so outer gas-operated thermal bath facility 64 combustion principle are the waste gas generating after gas-fired in the first combustion chamber 621 and enter the second combustion chamber 601 from combustion chamber through hole 6251, after the second heat storage 603 in the second combustion chamber 601 and the second accumulation of heat chamber 606 is to its exhaust-heat absorption cooling, discharge, otherwise, the waste gas generating after gas-fired in the second combustion chamber 601 enters the first combustion chamber 621 from combustion chamber through hole 6251, after the first heat storage 603 in the first combustion chamber 621 and the first accumulation of heat chamber 606 is to its exhaust-heat absorption cooling, discharge.

Further: the waste gas after purified gas burning by exhaust gas fan 666 enter tail gas water wash one's hair in cleaner 16, carry out water wash one's hair purify after clean discharge.

In sum, this gas two by gas reversing system enters the mode of operation of the regenerative heat exchange of a mode of operation outing and regenerative heat exchanger, realize the combustion heater alternate combustion of two groups of associations, be that gas reversing system is sent into air, purified gas burning to the combustion chamber of the first combustion heater, while is the hot waste gas after sucking-off burning from the combustion chamber of the second combustion heater, and the second heat storage absorbing and cooling temperature of hot waste gas in the second regenerative heat exchanger of the second combustion heater becomes the relatively low low temperature waste gas of temperature and discharge; In like manner, gas reversing system is sent into air, purified gas burning to the combustion chamber of the second combustion heater, while is the hot waste gas after sucking-off burning from the combustion chamber of the first combustion heater, and the first heat storage absorbing and cooling temperature of hot waste gas in the first regenerative heat exchanger of the first combustion heater becomes the relatively low low temperature waste gas of temperature and discharge; This method of mutually utilizing waste gas residual heat after gas-fired to add warm air, both played the waste gas residual heat after gas-fired had been made full use of, improve the efficiency of combustion of the coal gas in combustion chamber, can carry out cooling to a certain degree to the waste gas after gas-fired again, need not consume the external energy, play energy-saving and cost-reducing object, save smokeless char gasification cost, waste gas after gas-fired can totally discharge again, carves and current environmental requirement.

Heating by external gas-operated thermal bath facility 64 is controlled automatically, reduces human cost, has improved the control accuracy to gasification, realizes automatization.

As Fig. 1, Figure 10, shown in Figure 11, interior gas-operated thermal bath facility 67 is mainly by some groups of the 3rd combustion heater 68 and the 4th combustion heaters 69 that (6 groups of this examples) structure is identical, because the highly higher interior gas-operated thermal bath facility 67 of vaporizer 61 is mainly divided into, lower two-section type heating, every section has 6 groups of identical associations of structure to carry out associated the 3rd combustion heater 68, the 4th combustion heater 69, it forms structure and associated first burning heater 62 of combustion principle with above introduction, the principle of the second burning heater 60 is almost identical, 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 enters arm 687 and the 3rd combustion exhaust exhaust outlet 688.

As shown in Fig. 1, Fig. 9, Figure 11, the 3rd combustion chamber 681 is gas-fired quirks that in the vaporizer being built into by fire-resistant thermally conductive material, ringwall 612 and internal-quirk partition wall 635 surround a relative closure.

As shown in Figure 1, Figure 10 shows, the 3rd coal gas of hypomere enters arm 682 and upwards leads to three combustion chamber 681 from the passing of bar bow 651 of central supported bow 65 below, 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 is placed in the 3rd accumulation of heat chamber 686, the 3rd 686 one end, accumulation of heat chamber is by extending passage 6861 from the passing to extend upward and lead to 681 bottoms, the 3rd combustion chamber of the bar bow 651 of central supported bow 65 below, and the 3rd accumulation of heat chamber 686 the other ends are connected to respectively the 3rd air and enter arm 687 and the 3rd combustion exhaust exhaust outlet 688.

As Fig. 1, Fig. 9, shown in Figure 10, the 3rd coal gas of epimere enters arm 682 passing and upwards leading to the 3rd combustion chamber 681 through quirk partition wall 635 from the bar bow 651 of central supported bow 65 below, 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 is placed in the 3rd accumulation of heat chamber 686, the 3rd 686 one end, accumulation of heat chamber by extend passage 6861 from the bar bow 651 of central supported bow 65 below through upwards leading to 681 bottoms, the 3rd combustion chamber through 635 extensions of quirk partition wall, the 3rd accumulation of heat chamber 686 the other ends are connected to respectively the 3rd air and enter arm 687 and the 3rd combustion exhaust exhaust outlet 688.

In like manner, as shown in Fig. 9, Figure 10, Figure 11, the 4th combustion heater 69 structures are complete identical with the 3rd combustion heater 68, repeat no more here, and wherein the 4th combustion chamber 691 is connected and formed one group associated (shown in Fig. 1, Fig. 8) by chamber passage 6305 with the 3rd combustion chamber 681.

Wherein, as shown in Fig. 1, Fig. 6, Figure 10, the 3rd coal gas of the 3rd combustion chamber 681 of the 3rd burning heater 68 enters arm 682, the 3rd air and enters arm 687 and the 3rd combustion exhaust exhaust outlet 688 and by the first coal gas bustle pipe 6684, the first air bustle pipe 6674, the first combustion exhaust bustle pipes 6694 and the first gas manifold 6681, the first air, be in charge of the 6671, first combustion exhaust respectively and be in charge of 6691 and communicate.

As shown in Fig. 6, Figure 10, the 4th coal gas of the 4th combustion chamber 691 of the 4th burning heater 69 enters arm 692, the 4th air and enters arm 697 and the 4th combustion exhaust exhaust outlet 698 and by the second coal gas bustle pipe 6685, the second air bustle pipe 6675, the second combustion exhaust bustle pipe 6695 and the second gas manifold 6683, the second air, be in charge of the 6673, second combustion exhaust respectively and be in charge of 6693 and communicate.

Here, the 3rd burning heater 68, the 4th combustion heater 69 combustion principle and above the first burning heater 62, the second burning heater 60 are almost identical, repeat no more.

As shown in Figure 1, Figure 10 shows, central supported bow 65, because the quirk partition wall 635 of ringwall 612 and interior burning heater 67 is all arranged in furnace chamber in vaporizer, need central supported bow 65 for it provides support, the laying of various pipelines is provided to again interior burning heater 67 simultaneously.

As shown in Figure 1, Figure 10 shows, central supported bow 65 is arranged in the furnace chamber of vaporizer 61, interior burning heater 67 belows, mainly comprise bar bow 651, the Huo Gong center ringwall 652 of some, bar bends 651 one end and is fixed on Huo Gong center ringwall 652, the other end is fixed on body of heater 91, bar bow 651 is the radial layout of scattering in interval at a certain angle around ringwall 652 centers, Huo Gong center, 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 interior burning heater 67.

As shown in Fig. 1, Figure 10, Fig. 9, Figure 11, 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 arranging in the body of wall of tight another adjacent fire bow 651 enters the extension passage 6961 in arm 692 and the 4th accumulation of heat chamber 696, provide convenience to the pipeline laying of interior burning heater 67, make the various conduit arrangements of interior burning heater 67 orderly, be unlikely to interfere.

In sum, the type of heating of gasification installation 6 is by outer gas-operated thermal bath facility 64, interior gas-operated thermal bath facility 67 adopts duplex combustion chamber and commutation heating, on outer gas-operated thermal bath facility 64 minutes, in, lower three sections of heating, on interior gas-operated thermal bath facility 67 minutes, lower two sections of heating, in vaporizer 61, provide thermal source, in addition, the water-gas gasification reaction of this gasification installation 6 carries out vaporizer 61 is indoor separately, and heating is carried out vaporizer 61 is outdoor separately, therefore be referred to as external-heat, be different from existing intermittence fuel bed and regenerator same indoor carrying out, water-gas reaction and water-gas gasification reaction are heated respectively can be continuous, controlled carrying out, mutually coordinate and non-interference.

Second section water-gas reaction

Because smokeless char temperature in vaporizer is higher, generally all more than 1000 °, then pass into water vapor to smokeless char, the charcoal in high temperature smokeless char and superheated vapour meet and carry out the hot water-gas (carbon monoxide and hydrogen) of water-gas reaction generation high temperature.

As shown in Fig. 1, Figure 12, external-heat water-gas gasification installation 7 comprises that gasification installation 6, material cooling chamber 70, steam enter siphunculus 707, hot gas heating-type vapor generating unit (figure is not depending on going out).

As shown in Figure 1, the vaporizer 61 of gasification installation 6 is positioned at central supported and bends 65 tops, outer gas-operated thermal bath facility 64, interior gas-operated thermal bath facility 67 are required thermals source of vaporizer 61, certainly, if it is also feasible that vaporizer 61 is used to other external heating device, inner heating device, as long as can guarantee required heat and temperature to vaporizer 61, be not limited to the type of heating of above-mentioned outer gas-operated thermal bath facility 64, interior gas-operated thermal bath facility 67.

As shown in Figure 1, material cooling chamber 70 is arranged on body of heater 91 bottoms and is positioned at central supported and bends 65 belows, and the top of material cooling chamber 70 communicates with vaporizer 61 bottoms; Steam enters the top of siphunculus 707 one end material cooling chamber 70, steam enters the opening 708 of siphunculus 707 downwards towards material cooling chamber 70, and steam enters siphunculus 707 the other ends and stretches out communicating of outer sweating room (the scheming depending on not going out) with hot gas heating-type vapor generating unit of body of heater 91.

Because the task of external-heat water-gas gasification installation 7 is to produce a large amount of water-gas, so smokeless char need to consume a large amount of water vapors while carrying out water-gas reaction in vaporizer 61, need to produce the steam generation device of a large amount of water vapors, and the water-gas temperature that in this example, smokeless char and steam reaction generate is very high, conventionally more than 500 °, hot gas heating-type vapor generating unit also can be referred to as hot gas heating-type vapor boiler, primary structure is that hot gas interchanger forms separately an independently gas passage, container or the water tank of dress water form sweating room, hot gas interchanger is placed in to container or the water tank of dress water, the gas passage of hot gas interchanger is connected with water-gas bustle pipe 85, sweating room enters siphunculus 707 with water vapor importing steam and is connected, utilize hot gas interchanger that the heat of the hot water-gas of high temperature is passed to the water in container or water tank, thereby the water in container or water tank is added to thermosetting water vapor, again water vapor is imported to steam and enter siphunculus 707, both played the cooling to water-gas, simultaneously again make up water coal gas seasonable required a large amount of water vapor, do not need to consume the extra energy, water-gas cost is further saved.

Water-gas reaction Principle Method of the present invention is:

(1), steam enters siphunculus 707Xiang material cooling chamber 70 and passes into water vapor, water vapor blows to material cooling chamber 70, give the high-temp solid product cooling after water-gas gasifications a large amount of in material cooling chamber 70, when the solid of water vapor after giving gasification lowered the temperature, improve steam temperature and form superheated vapour;

(2), superheated vapour enters vaporizer 61 through central supported bow 65, and contact with the high temperature smokeless char material of vaporizer 61, the charcoal in smokeless char and superheated vapour meet and carry out the hot water-gas (carbon monoxide and hydrogen) of water-gas reaction generation high temperature;

(3), the hot water-gas of high temperature is passed into hot gas heating-type vapor generating unit heating water and form water vapor, the water vapor again hot gas heating-type vapor generating unit being produced passes into steam and enters siphunculus 707, supplement because of the required a large amount of water vapors of water-gas reaction, water-gas reaction can uninterruptedly be carried out continuously;

(4), above-mentioned the 2nd step, the heating of vaporizer 61 adopts duplex combustion chamber and commutation accumulation of heat heating means by outer gas-operated thermal bath facility 64, interior gas-operated thermal bath facility 67, the upper, middle and lower segment heating in 64 minutes of outer gas-operated thermal bath facility, the upper and lower two sections of heating in 67 minutes of interior gas-operated thermal bath facility, give water-gas reaction institute heat requirement.

The charcoal of utilization of the present invention in high temperature smokeless char and superheated vapour meet and carry out water-gas reaction and generate the hot water-gas product of high temperature, water-gas output is large, in water-gas, hydrogen content is high, carbon monoxide and hydrogen reasonable ratio, other component content is low, it is desirable synthetic gas product, can be as reducing gas for other industry, reducing gas as used in the reducing and smelting as direct-reduced iron, also can obtain the excellent pure hydrogen product of inexpensive product as the reducing and smelting of direct-reduced iron reducing gas used by pressure-variable adsorption or membrane separation process, secondly, utilize the higher solid product of temperature after smokeless char gasification directly to contact generation superheated vapour with water vapor, reach the temperature required of water-gas reaction, promote water-gas reaction more to fill part, both when reducing solid product temperature, produce again superheated vapour, finally, the water-gas that high temperature after water-gas reaction is hot is derived, for water is added to thermogenesis water vapor, to water-gas reaction, provide in a large number water vapor endlessly, this technological method that consumes additional energy source that do not need meets energy-saving and cost-reducing that we advocate today, the theory of Sustainable development.

The 3rd water saving coal gas take-up gear

Charcoal in high temperature smokeless char and superheated vapour carry out water-gas reaction and generate water-gas (carbon monoxide and hydrogen), and above general designation water-gas need to be derived to utilize water-gas.

As shown in Fig. 1, Fig. 7, Fig. 8, Fig. 9, Figure 11, water-gas take-up gear 8, comprises water-gas concentration chamber 81, outer derivation passage 83, derives main channel 84, water-gas bustle pipe 85; It is integrally formed that water-gas concentration chamber 81 is arranged on top and the vaporizer 61 of vaporizer 61; As shown in Fig. 1, Fig. 8, Figure 15, article 18, the outer passage 83 of deriving arranges in the exterior wall of body of heater 91, lower outside derivation feeder connection 831, upper outside derivation feeder connection 834 lead to vaporizer 61 through outer ring wall 611 middle parts, the water-gas concentration chamber 81 that outer derivation channel outlet 832 is led to vaporizer top through outer ring wall 611.

As shown in Figure 1, Figure 7 shows, derive main channel 84 and be arranged in the exterior wall of body of heater 91 of vapourizing furnace, derive main channel 84 and communicate with water-gas concentration chamber 81 to extend up to again and body of heater 91 is set communicates with top water coal gas bustle pipe 85 outward.

As Fig. 1, Fig. 7, Fig. 8, shown in Fig. 9, in this example because vaporizer 61 annular chamber, so water-gas concentration chamber 81 is corresponding annular chamber also, article 18, outer derive passage 83 be separately positioned in the middle of body of heater 91 exterior walls through and outer quirk partition wall 625 and outer ring wall 611 lead to vaporizer 61, wherein, because the circumference of vaporizer 61 is longer, so interior ringwall 612 at vaporizer 61, on outer ring wall 611, be respectively arranged with 18 lower outside derivation feeder connections 831, upper outside derivation feeder connection 834, as shown in Figure 1, this example adopts this structure can better derive the water-gas that in vaporizer 61, different sections produce, around water-gas concentration chamber 81, be also provided with 8 the larger water-gas of sectional area main channels 84 in addition and lead to water-gas bustle pipe 85, the object arranging like this can conveniently derive a large amount of water-gas in water-gas concentration chamber 81.

This routine feature is collected the water-gas that different sections produce in vaporizer 61 again in water-gas concentration chamber 81 in derivation passage 83 respectively from lower outside derivation feeder connection 831, upper outside derivation feeder connection 834 enter, certainly a large amount of water-gas in vaporizer 61 are directly to rise up in water-gas concentration chamber 81, by deriving main channel 84, enter 85 discharges of water-gas bustle pipe.

The 4th joint continuous external heating type gasification

Comprehensively above-mentioned, this routine feature be by smokeless char preheating, smokeless gasification (water-gas reaction), steam produce, water-gas derive process integration together in, make that smokeless char gasification (water-gas reaction), steam produce, water-gas is able to continuous realization.

As shown in figure 14, continuous external heating type water-gas vapourizing furnace 9 comprise body of heater 91, pre-heating cabin 1, enter stove cloth passage 921, external-heat water-gas gasification installation 7, water-gas take-up gear 8, helix closed removal device 96, product feed bin 94; The concrete structure of pre-heating cabin 1, external-heat water-gas gasification installation 7, water-gas take-up gear 8 is shown in the above; Pre-heating cabin 1 is arranged on body of heater 91 tops, the high temperature hot gas admission passage 131 of pre-heating cabin 1 communicates with water-gas bustle pipe 85, body of heater 91 tops are provided with into stove cloth passage 921, enter stove cloth passage 921 upper ends and be connected with the charging valve 15 of pre-heating cabin 1 bottom, enter stove cloth passage 921 lower ends and communicate with vaporizer 61 tops of gasification installation 6 ,above-mentioned charging valve 15 is mainly taked the charging valve of gas sealing function, mainly prevent that water-gas from spilling by entering stove cloth passage 921, guarantee that a large amount of water-gas derives from the derivation main channel 84 of water-gas take-up gear 8, certainly when charging valve 15, open while feeding in raw material, because the particle of smokeless char own is tiny, together, water-gas is also difficult to see through the smokeless char in stove cloth passage 921 and spills or can only spill by trace dense packing.

As shown in figure 14, helix closed removal device 96 is arranged on material cooling chamber 70 bottoms of external-heat water-gas gasification installation 7, product feed bin 94 is placed in body of heater 91 bottoms, on product feed bin 94, connect helix closed removal device 96, helix closed removal device 96 belongs to prior art, as long as can play, avoid the grit of the solid product after smokeless char gasification to fly upward, as the sealing discharging device on market, sealing material returning device, sealing blanking device etc.

The method of this routine continuous external heating type gasification is:

(1), by bucket elevator 18, low-rank coal (brown coal) pyrolysis process is obtained to smokeless, anhydrous, low ash, highly active smokeless char and deliver to sealing infeed belt conveyor 17, seal infeed belt conveyor 17 by smokeless char preheating from pre-heating cabin 1, then by entering stove cloth passage 921, enter in the vaporizer 61 of gasification installation 6;

(2) after 67 pairs of purifications of outer gas-operated thermal bath facility 64, interior gas-operated thermal bath facility of the gasification installation 6, by external-heat water-gas gasification installation 7, gas-fired provides thermal source to vaporizer 61, and smokeless char gasifies under hot environment in vaporizer 61;

(3), by external-heat water-gas gasification installation 7, from vaporizer 61 bottoms, pass into high-temperature water vapor, and the smokeless char gasification materiel hot with the high temperature of vaporizer 61 contact, the charcoal in the solid product after smokeless char gasification meets and carries out water-gas reaction generation water-gas with superheated vapour;

(4), solid product after smokeless char gasification falls into material cooling chamber 70 from vaporizer 61, to upwards enter the water vapor of vaporizer 61 through material cooling chamber 70, be again heated as overheated high-temperature water vapor, again the solid product after smokeless char gasification is lowered the temperature simultaneously, according to smokeless char gasification degree, control helix closed removal device 96 opens or closes in good time, solid product after smokeless char high-temperature gasification cooling in material cooling chamber 70 is entered in product feed bin, while controlling charging valve 15 again, open in good time or close, smokeless char after preheating enters adding in vaporizer 61 of gasification installation 6 by entering stove cloth passage 921,

(5), water-gas reaction generates water-gas (carbon monoxide and hydrogen), be referred to as water-gas, water-gas is derived by the derivation main channel 84 of the water-gas take-up gear 8 that arranges on body of heater, by water-gas bustle pipe 85 and high temperature hot gas admission passage 131, enter 1 pair of smokeless char preheating of pre-heating cabin, be the preheating of above-mentioned the 1st step, the low temperature water gas after preheating is discharged by the cryogenic gas exhaust channel 138 of pre-heating cabin 1.

Further, water-gas is derived by the derivation main channel 84 of the water-gas take-up gear 8 that arranges on body of heater, by water-gas bustle pipe 85, import hot gas heating-type vapor generating unit heating water and form water vapor, the water vapor again hot gas heating-type vapor generating unit being produced enters siphunculus 707 by steam and passes into external-heat water-gas gasification installation 7, supplement because of the required a large amount of water vapors of water-gas reaction, water-gas reaction can uninterruptedly be carried out continuously.

This example is incorporated into same body of heater by smokeless char preheating, gasifying process, realizes continuous smokeless char gasification, and production efficiency is high, and the required factory building face of equipment is little, and human cost is low, has the feature of low consumption, environmental protection.

The 4th part, continuous water-gas gasification are comprehensively

First segment continuous external heating type water-gas gasification integration unit

As shown in figure 14, comprehensively above-mentioned, draw continuous external heating type water-gas gasification integration unit, comprise that continuous external heating type water-gas vapourizing furnace 9, tail gas water washes one's hair cleaner 16, the tail gas pod 164 that the exhaust gas fan 666 of the gas reversing system 66 of the gasification installation 6 of continuous external heating type water-gas vapourizing furnace 9 is washed one's hair cleaner 16 by pipeline 6661 and tail gas water communicates.

So draw, continuous external heating type water-gas gasification integrated approach is: the 2nd step of the method gasifying at above-mentioned continuous external heating type is further supplemented and is, above-mentioned outer gas-operated thermal bath facility 64, interior gas-operated thermal bath facility 67 adopt duplex combustion chamber and commutation heating, in vaporizer 61, provide thermal source, the waste gas in outer gas-operated thermal bath facility 64, interior gas-operated thermal bath facility 67 after purified gas burning by exhaust gas fan 666 enter tail gas water wash one's hair in cleaner 16, carry out water wash one's hair purify after clean discharge.

Be further refined as: the upper, middle and lower segment heating in 64 minutes of outer gas-operated thermal bath facility, the upper and lower two sections of heating in 67 minutes of interior gas-operated thermal bath facility provide thermal source in vaporizer 61.

The control of second section continuous external heating type water-gas gasification composite technology

As shown in figure 13: the control device of continuous external heating type water-gas gasification integration unit, comprise that industry control center 90 and the pre-hot feed of smokeless char use pass through bucket elevator 18, infeed belt conveyor 17 is connected; Be connected with charging valve 15, helix closed removal device 96, chamber temperature table 6203, rotation reversing motor 663, air blower 664, gas fan 665, exhaust gas fan 666, the sprinkling water pump 167 of smokeless char gasification use, by industry control center 90, automatically controlled their work.

The control method of continuous external heating type water-gas gasification integration unit is:

(1), industry control center 90 controls to the smokeless char pellet adding in the feed bin 111 of pre-heating cabin 1 by bucket elevator 18, infeed belt conveyor 17, control charging valve 15 and open and close the smokeless char after preheating in blanking bin 14 is entered in the vaporizer 61 of gasification installation 6 by entering stove cloth passage 921;

(2), the temperature that records according to chamber temperature table 6203 of industry control center 90 carries out rotational frequency and air blower 664, gas fan 665, the external gas-operated thermal bath facility 64 of air force of exhaust gas fan 666, the gas-fired of interior gas-operated thermal bath facility 67 that comprehensive assessment smokeless char gasification situation controls rotation reversing motor 663 and controls, thereby to smokeless char water-gasization, reaction is adjusted;

(3) water that, industry control center 90 pumps into tail gas by exhaust gas fan 666 by the waste gas after burning in outer gas-operated thermal bath facility 64, interior gas-operated thermal bath facility 67 is washed one's hair in cleaner 16 and is purified;

(4), the pump water yield of industry control center 90 adjustment sprinkling water pumps 167 realizes the purification that the waste gas after burning is pumped into tail gas.

Above content introduction just exemplifies a tool embodiment of continuous water-gas gasification integration unit and technique, does not form the restriction to the continuous water-gas gasification integration unit of this case and technique protection domain.

Claims (3)

1. continuous external heating type water-gas gasification integrated approach, is characterized in that: the equipment that the method relates to comprises that continuous external heating type water-gas vapourizing furnace, tail gas water washes one's hair cleaner; Described continuous external heating type water-gas vapourizing furnace comprises pre-heating cabin, external-heat water-gas gasification installation, helix closed removal device, described external-heat water-gas gasification installation comprises that gasification installation, material cooling chamber, steam enter siphunculus, hot gas heating-type vapor generating unit, and step is:

(1), low-rank coal pyrolysis process is obtained to smokeless, anhydrous, low ash, highly active smokeless char is delivered to preheating in pre-heating cabin, then enters in the vaporizer of gasification installation;

(2), the outer gas-operated thermal bath facility of the gasification installation by external-heat water-gas gasification installation, the duplex combustion chamber that interior gas-operated thermal bath facility adopts and commutation accumulation of heat heating means light purify after coal gas, for vaporizer provides thermal source, smokeless char gasifies in the hot environment of vaporizer;

(3), by passing into high-temperature water vapor from vaporizer bottom, and the smokeless char gasification materiel hot with high temperature in vaporizer contact, the charcoal in the solid product after smokeless char gasification meets and carries out water-gas reaction generation water-gas with superheated vapour;

(4), solid product after smokeless char gasification falls into material cooling chamber from vaporizer, to upwards enter the water vapor of vaporizer through material cooling chamber, be again heated as overheated high-temperature water vapor, again the solid product after smokeless char gasification is lowered the temperature simultaneously, according to smokeless char gasification degree, control the unlatching of helix closed removal device in good time or close, solid product after smokeless char high-temperature gasification cooling in material cooling chamber is entered in product feed bin, control again in good time pre-heating cabin charging valve unlatching or close, smokeless char after preheating is added to the vaporizer of gasification installation,

(5), water-gas reaction generates water-gas and derives from vaporizer by the water-gas take-up gear arranging on body of heater, enters pre-heating cabin to smokeless char preheating, i.e. the preheating of above-mentioned the 1st step;

(6), water-gas reaction generates water-gas derives from vaporizer by the water-gas take-up gear arranging on body of heater, enter hot gas heating-type vapor generating unit heating water and form water vapor, the water vapor again hot gas heating-type vapor generating unit being produced enters siphunculus by steam and passes into material cooling chamber, supplement because of the required a large amount of water vapors of water-gas reaction, water-gas reaction can uninterruptedly be carried out continuously;

(7), adopt duplex combustion chamber and commutation accumulation of heat heating means to light the coal gas after purification the outer gas-operated thermal bath facility of above-mentioned the 2nd step, interior gas-operated thermal bath facility, the waste gas of generation pass into tail gas water wash one's hair cleaner carry out water wash one's hair purify after discharge.

2. continuous external heating type water-gas as claimed in claim 1 gasification integrated approach, it is characterized in that: described outer gas-operated thermal bath facility duplex combustion chamber and commutation accumulation of heat heating means, the method relates to equipment and comprises outer gas-operated thermal bath facility, gas reversing system, outer gas-operated thermal bath facility comprises the first combustion heater of at least one group of identical association of structure, the second combustion heater, the first described combustion heater mainly comprises the first combustion chamber, the first coal gas enters arm and the first regenerative heat exchanger, the second combustion heater structure also comprises the second combustion chamber, the second coal gas enters arm and the second regenerative heat exchanger, the step of the method is:

(1), gas reversing system blasts the first regenerative heat exchanger by air, after the first regenerative heat exchanger heating, enter in the first combustion chamber, gas reversing system blasts purified gas in the first combustion chamber and burns, waste gas in the first combustion chamber after purified gas burning enters into the second combustion chamber, then by gas reversing system, is discharged after the second regenerative heat exchanger heat absorption;

(2), reach and set combustion time, gas reversing system blasts the second regenerative heat exchanger by air, after the second regenerative heat exchanger heating, enter in the second combustion chamber, gas reversing system blasts purified gas in the second combustion chamber and burns, waste gas in the second combustion chamber after purified gas burning enters into the first combustion chamber, then by gas reversing system, is discharged after the first regenerative heat exchanger heat absorption.

3. continuous external heating type water-gas as claimed in claim 1 gasification integrated approach, it is characterized in that: described interior gas-operated thermal bath facility duplex combustion chamber and commutation accumulation of heat heating means, the method relates to equipment and comprises interior gas-operated thermal bath facility, gas reversing system, interior gas-operated thermal bath facility comprises the 3rd combustion heater of at least one group of identical association of structure, the 4th combustion heater, the 3rd described combustion heater mainly comprises the 3rd combustion chamber, the 3rd coal gas enters arm and the 3rd regenerative heat exchanger, the 4th combustion heater structure also comprises the 4th combustion chamber, the 4th coal gas enters arm and the 4th regenerative heat exchanger, the step of the method is:

(1), gas reversing system blasts the 3rd regenerative heat exchanger by air, after the 3rd regenerative heat exchanger heating, enter in the 3rd combustion chamber, gas reversing system blasts purified gas in the 3rd combustion chamber and burns, waste gas in the 3rd combustion chamber after purified gas burning enters into the 4th combustion chamber, then by gas reversing system, is discharged after the 4th regenerative heat exchanger heat absorption;

(2), reach and set combustion time, gas reversing system blasts the 4th regenerative heat exchanger by air, after the 4th regenerative heat exchanger heating, enter in the 4th combustion chamber, gas reversing system blasts purified gas in the 4th combustion chamber and burns, waste gas in the 4th combustion chamber after purified gas burning enters into the 3rd combustion chamber, then by gas reversing system, is discharged after the 3rd regenerative heat exchanger heat absorption.