CN102851047B - Comprehensive utilization method of low metamorphic bituminous coal - Google Patents

Abstract

The invention discloses a comprehensive utilization method of low metamorphic bituminous coal. The comprehensive utilization method comprises steps of (1) coaling; (2) preheating hot exhaust gas; (3) conducting high-temperature pyrolysis and carbonization; (4) modifying smokeless coal after pyrolysis; (5) conducting dry quenching on modified smokeless coal to generate high-temperature combustible hot exhaust gas; (6) discharging smokeless coal after dry quenching; (7) leading out raw coke oven gas produced by pyrolysis in the step (3), purifying and burning; (8) conducting dry quenching on the smokeless coal by exhaust gas after burning, namely the step (5); (9) modifying the smokeless coal by the high-temperature combustible hot exhaust gas produced by dry quenching, namely the step (4); (10) preheating hot exhaust gas for gas supplement and burning of the high-temperature combustible hot exhaust gas, namely the step (2); (11) dewatering the low metamorphic bituminous coal with big moisture content by preheated hot exhaust gas; (12) discharging moisture; (13) sending the low metamorphic bituminous coal after dewatering to the step (1); and (14) supplementing new low metamorphic bituminous coal with big moisture content.

Description

A kind of lower-grade metamorphic bituminous method of comprehensive utilization

Technical field

The present invention relates to a kind of method of comprehensive utilization of coal, particularly a kind of lower-grade metamorphic bituminous method of comprehensive utilization.

Background technology

Research shows, the coal of China is from forming the age, maximum with Jurassic Coal reserves, account for 45% of the explored coal storage capacity of China, the coal forming due to these except only a few hard coal in epoch, all the other great majority are brown coal, long-flame coal, non caking coal, weakly caking coals etc. are lower-grade metamorphic bituminous, lower-grade metamorphic bituminous physical property is that water content is high, volatile component is high, brown coal particularly, a kind of brownish black between peat and pitch coal, lacklustre grizzle, water content is especially up to more than 40%, and containing free humic acid, chemical reactivity is strong, easily weathering in air, be difficult for storing and fortune far away, can not be over two months even if store, otherwise just easily ignition spontaneous combustion, stacking highly should be over two meter yet, floor space is large, these coal mining rates are often very low.

Yet lower-grade metamorphic bituminous, brown coal are widely used in again coking, oil refining, gasification, liquefaction, the aspect such as power and chemical industry, for more good utilisation is lower-grade metamorphic bituminous, brown coal, industry is interior to lower-grade metamorphic bituminous, the coalification technique of brown coal is generally taked first to lower-grade metamorphic bituminous, brown coal dehydrate, low temperature pyrogenation method for destructive distillation again, due to grade metamorphic bituminous, brown coal dehydrate and need to consume a large amount of energy, production cost is high, and the coalification by-product that low temperature pyrogenation destructive distillation obtains is as raw gas, tar is also relatively low, present stage people progressively study lower-grade metamorphic bituminous, brown coal carry out high temperature pyrolysis technique.

The inventor is for a long time to lower-grade metamorphic bituminous, the physical property of brown coal and the research of high-temperature coal pyrolytic process, innovate a set of brand-new to lower-grade metamorphic bituminous, brown coal dehydrate and high temperature pyrolysis technique and device.

Summary of the invention

The invention provides a kind of lower-grade metamorphic bituminous method of comprehensive utilization, the method can continuously be dewatered the large lower-grade metamorphic bituminous realization of water content and high temperature pyrolysis, purified gas after simultaneously utilizing the raw gas recovery of chemical products of the generation in lower-grade metamorphic bituminous self high temperature pyrolysis process to purify burns and provides thermal source to high temperature pyrolysis, utilizes again hot waste gas lower-grade metamorphic bituminous dewater large to original water content after burning.

Realizing the technical scheme that above-mentioned purpose takes is:

A kind of lower-grade metamorphic bituminous method of comprehensive utilization, the related equipment of present method comprises hot waste gas dewatering unit, coal heat decomposition stove, transfer roller, hot waste gas connecting tube, described coal heat decomposition stove mainly comprises coal supply apparatus, pyrolysis of coal carbonizing apparatus, burnt modifying apparatus, dry coke quenching auxiliary, raw gas take-up gear, and step is:

(1), will by existing transfer roller, deliver to coal supply apparatus through lower-grade metamorphic bituminous after hot waste gas dewatering unit dehydration;

(2), the hot waste gas after burning is carried out to preheating from coal supply apparatus;

(3), the lower-grade metamorphic bituminous stove coal that enters as pyrolysis of coal carbonizing apparatus through heating preheating heats high temperature pyrolysis charing;

(4) lower-grade metamorphic bituminous the becoming " smokeless char " that, high temperature pyrolysis completes directly drops into and in burnt modifying apparatus, carries out burnt upgrading;

(5), " smokeless char " that directly drop in dry coke quenching auxiliary after using low temperature waste gas focusing upgrading after burning to complete carry out the dry cooling of putting out, and produces the flammable hot waste gas of high temperature simultaneously;

(6), dry " smokeless char " putting out after cooling finally discharged from dry coke quenching auxiliary;

(7), the raw gas that in (3) step, lower-grade metamorphic bituminous high temperature pyrolysis charing produces is derived by raw gas take-up gear, raw gas becomes purified gas after condensation recovery of chemical products purifies, purified gas after purifying is passed in pyrolysis of coal carbonizing apparatus and carries out combustion heating, and the waste gas after burning becomes the relatively low low temperature waste gas of temperature and discharges after regenerative heat exchange;

(8), waste gas after the purified gas burning in (7) step is passed in dry coke quenching auxiliary, " smokeless char " carried out to the dry cooling of putting out, realize with above-mentioned (5) step;

(9), utilize in (8) step " smokeless char " that at the dry flammable hot waste gas of high temperature producing in putting out process, first by burnt modifying apparatus, high temperature pyrolysis completed to carry out upgrading, realize with above-mentioned (4) step;

(10), the flammable hot waste gas of high temperature after the burnt upgrading of (9) step is passed into the gas firing that covers in pyrolysis of coal carbonizing apparatus, hot waste gas after tonifying Qi burning is passed in coal supply apparatus 3 lower-grade metamorphic bituminous after dehydration carried out to preheating, realize above-mentioned (2) step;

(11), by the hot waste gas dewatering unit of prognosis in above-mentioned (2) step, lower-grade metamorphic bituminous the carry out dewatered drying large to water content, simultaneously hot waste gas is discharged after heat-exchange temperature reduces;

(12), lower-grade metamorphic bituminously in hot waste gas dewatering unit, be heated when dehydration, the water in lower-grade metamorphic bituminous is evaporated and becomes steam and discharge;

(13) lower-grade metamorphic bituminous, after dehydrating is constantly sent in coal supply apparatus by transfer roller, with this along connecing above-mentioned (1) step;

(14), by large lower-grade metamorphic bituminous being transported in hot waste gas dewatering unit of water content, to give, in hot waste gas dewatering unit, constantly supplement large lower-grade metamorphic bituminous of new water content.

The lower-grade metamorphic bituminous comprehensive utilization principle of this example invention, lower-grade metamorphic bituminous continuous dehydration and high temperature pyrolysis that realization is large to water content, and the waste gas of the purified gas after utilizing raw gas recovery of chemical products that low rotten cigarette self high temperature pyrolysis produces to purify after burning and burn dewaters, do not need to consume the external energy, can provide to the blast furnace of Iron And Steel Industry or power plant " smokeless char " of high-quality, can give again other coalification industry provide by-product that raw gas purifies or gasification use " smokeless char has reached the large lower-grade metamorphic bituminous utilization to water content and has maximized.

Accompanying drawing explanation

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

Fig. 1 is hot waste gas dewatering unit cross-sectional schematic one of the present invention;

Fig. 2 is hot waste gas dewatering unit cross-sectional schematic two of the present invention;

Fig. 3 is k-k place schematic cross-section in Fig. 1;

Fig. 4 is p-p place schematic cross-section in Fig. 1;

Fig. 5 is j-j place schematic cross-section in Fig. 1;

Fig. 6 is the sectional view of coal supply apparatus of the present invention;

Fig. 7 is a-a place schematic cross-section in Fig. 6;

Fig. 8 is b-b place sectional view in Fig. 6;

Fig. 9 is d-d place sectional view in Fig. 6;

Figure 10 is that coal heat decomposition stove of the present invention and hot waste gas dewatering unit form schematic diagram;

Figure 11 is F place enlarged view in Figure 25;

Figure 12 is x-x place sectional view in Figure 11;

Figure 13 is gas reverser schematic diagram of the present invention;

Figure 14 is gas reverser upper lower burrs schematic diagram of the present invention;

Figure 15 is c-c place cross-sectional schematic in Figure 14;

Figure 15-1st, gas reverser of the present invention and combustion heater pipe network connection diagram;

Figure 16 is z-z place schematic cross-section in Figure 21;

Figure 17 is w-w place schematic cross-section in Figure 21;

Figure 18 is y-y place schematic cross-section in Figure 21;

Figure 19 is the burnt modifying apparatus schematic diagram (u-u place sectional view in Figure 21) of coal heat decomposition stove of the present invention;

Figure 20 is quirk bow schematic diagram (t-t place sectional view in Figure 21) of the present invention;

Figure 21 is pyrolysis of coal carbonizing apparatus schematic diagram of the present invention (E place enlarged view in Figure 25); ;

Figure 22 is dry coke quenching auxiliary schematic diagram of the present invention (H place enlarged view in Figure 25);

Figure 23 quenching bridge bow of the present invention schematic diagram;

Figure 24 is industry control central electrical connection diagram of the present invention;

Figure 25 is coal heat decomposition stove general illustration of the present invention;

Figure 26 is raw gas take-up gear schematic diagram of the present invention (G place enlarged view in Figure 25).

Embodiment

The specific embodiment of a kind of lower-grade metamorphic bituminous method of comprehensive utilization of the present invention is mainly being introduced below in detail.

The lower-grade metamorphic bituminous granularity of first part is controlled

Before dehydrating, lower-grade metamorphic bituminous, brown coal can choose the mixing coal charge between 0～60mm by granularity controller, research shows, in this size range, lower-grade metamorphic bituminous, brown coal are dehydrated, fully dry, dewatering efficiency is high, but this does not form the restriction to needed lower-grade metamorphic bituminous, brown coal to the present invention, the present invention to granularity be greater than 60mm lower-grade metamorphic bituminous, brown coal are applicable equally.

The lower-grade metamorphic bituminous dehydration of second section

As shown in Figure 1 and Figure 2: lower-grade metamorphic bituminous hot waste gas dewatering unit 1, comprises housing 11, water evaporation discharger 12, waste gas heat exchange water trap 13, lower coal bunker 14; In housing 11, be formed for the dry cavity of coal 111, cavity 111 top relative closures are only provided with coal inlet 112, and lower coal bunker 14 is arranged on housing 11 bottoms and communicates with cavity 112.

As Fig. 1, Fig. 2, shown in Fig. 3: water evaporation discharger 12 comprises water vapor outlet orifice 121, pipeline 122 is ganged up in water vapor hole, water vapor conduit 123, condensation water collection pipeline 124, several water vapor outlet orifices 121 arrange on the wall that is arranged on housing 11 tops in length and breadth by rule, wherein water vapor hole is ganged up pipeline 122 and is longitudinally being serially connected water vapor outlet orifice 121 is in column, water vapor conduit 123 is arranged on the top that pipeline 122 is ganged up in water vapor hole, pipeline 122 tops are ganged up in the water vapor hole of ordered series of numbers to be pooled together and is beneficial to water vapor discharge, condensation water collection pipeline 124 is arranged on the bottom that pipeline 122 is ganged up in water vapor hole, pipeline 122 bottoms are ganged up in the water vapor hole of ordered series of numbers to be pooled together and is beneficial to condensed water elimination.

As shown in Figure 1, Figure 2, Figure 4 shows, waste gas heat exchange water trap 13 comprises hot waste gas admission passage 131, hot waste gas surge chamber 132, radiating pipe 133, radiating pipe serial connection passage 134, waste gas transition passage 135, low temperature waste gas exhaust channel 136, hot waste gas admission passage 131 is arranged on the middle and upper part wall of housing 11, to reserve lower-grade metamorphic bituminous enter coal and water vapor Free up Memory on cavity 111 tops of housing 11, hot waste gas surge chamber 132 is also arranged on the ingress wall of hot waste gas admission passage 131, mainly avoid high temperature hot waste gas directly to come in to impact radiating pipe 133 and radiating pipe serial connection passage 134, also can allow hot waste gas evenly enter in radiating pipe serial connection passage 134 and radiating pipe 133 simultaneously, radiating pipe serial connection passage 134 adopts metallic substance to make the internal cavities 111 that passes across housing 11, hot waste gas surge chamber 132 and waste gas transition passage 135 are connected together, several radiating pipes 133 also adopt metallic substance to make interval and are connected on radiating pipe serial connection passage 134 and are connected in series passage 134 perforations with radiating pipe, low temperature waste gas exhaust channel 136 is arranged on the bottom wall of housing 11 and communicates with waste gas transition passage 135.

As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, housing 11 squarelys, water evaporation discharger 12 also comprises water vapor connecting tube 125 and water of condensation connecting tube 126, water vapor outlet orifice 121 is in column to be arranged in two relative walls on housing 11 tops, as front face 113, rear surface 114, water vapor connecting tube 125 is by front face 113, water vapor conduit 125 in rear surface 114 is serially connected, be beneficial to the concentrated discharge of water vapor, water of condensation connecting tube 126 is by front face 113, condensation water collection pipeline 124 in rear surface 114 is serially connected, be beneficial to the concentrated discharge of water of condensation.

As Fig. 1, Fig. 2, Fig. 4, shown in Fig. 5, in order to allow, lower-grade metamorphic bituminously in the cavity 111 of housing 11, fully dehydrate, particularly for the large brown coal of water content, need to allow brown coal stop the long period to the cavity 111 of housing 11, fully dehydration, so the height design of housing is very high, these will be to the multistage long-time dehydrations of group more than lower-grade metamorphic bituminous carrying out, therefore waste gas transition passage 135 at least more than one, radiating pipe serial connection passage 134 is also more than at least one, hot waste gas surge chamber 132 and first waste gas transition passage 1351 are separately positioned on two relative walls of housing, as Fig. 1, shown in Fig. 4, hot waste gas surge chamber 132 is arranged on left wall 115, first waste gas transition passage 1351 is arranged on right wall 116, many radiating pipe serial connection passage 134 is connected together hot waste gas surge chamber 132 and first waste gas transition passage 1351, as Fig. 1, shown in Fig. 5, the second waste gas transition passage 1352 is arranged on hot waste gas surge chamber 132 with relative with first waste gas transition passage 1351 on the left wall 115 of side-lower, many radiating pipe serial connection passage 134 is connected together first waste gas transition passage 1351 and second waste gas transition passage 1352, it is 1353 relative with second waste gas transition passage 1352 on the right wall 116 of side-lower at first waste gas transition passage 1351 that the 3rd waste gas transition passage arranges, many radiating pipe serial connection passage 134 is connected together second waste gas transition passage 1352 and the 3rd waste gas transition passage 1353, the rest may be inferred, low temperature waste gas exhaust channel 136 communicates with last waste gas transition passage 1354.

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, radiating pipe 133 is " U " type, radiating pipe serial connection passage is more than 134 at least one, several U-shaped radiating pipe 133 one end are wherein connected in series passage 134 with a upper radiating pipe and connect, the other end of U-shaped radiating pipe 133 is connected in series passage 134 perforations with next adjacent radiating pipe, one end 1341 of upper radiating pipe serial connection passage 134 communicates with hot waste gas surge chamber 132 and the other end 1342 sealings, one end 1341 sealings of next radiating pipe serial connection passage 134 and the other end 1342 communicates with the first waste gas transition passage 1351, in like manner, between the first waste gas transition passage 1351 and the second waste gas transition passage 1352, also the one end 1342 that is upper radiating pipe serial connection passage 134 communicates with the first waste gas transition passage 1351 and the other end 1341 sealings, one end 1342 sealings of next radiating pipe serial connection passage 134 and the other end 1341 communicates with the second waste gas transition passage 1352, the rest may be inferred.

As Fig. 1, shown in Fig. 2, the two rows that are of U-shaped radiating pipe 133 are arranged, the U-shaped radiating pipe 133 of a upper row is inverted U, U-shaped mouthful of the U-shaped radiating pipe 133 of a upper row is relative with the U-shaped mouth of the U-shaped radiating pipe 133 of next row, in order to be beneficial to lower-grade metamorphic bituminous coal breakage, the top that the described U-shaped radiating pipe 133 of a upper row is inverted U is wedge 1331, the U-shaped radiating pipe 133 of a upper row is connected in series the outside of passage 134 junctions and is also arranged to inclined-plane 1333 with radiating pipe, radiating pipe serial connection passage 134 upper surfaces that are connected with the U-shaped radiating pipe 133 of next row are also arranged to inclined-plane 1334, the U-shaped inner bay place of the U-shaped radiating pipe 133 of next row is wedge 1332.

The dewatering of the hot waste gas dewatering unit that this is lower-grade metamorphic bituminous is:

(1), use an enclosed belt conveyer 10 (to refer to transfer roller belt being covered with its circumferential closed barrel-shaped casing of a both ends open, prevent lower-grade metamorphic bituminous being scattered, keep Working environment neat and tidy) by the lower-grade metamorphic bituminous cavity 111 that enters into housing 11 from coal inlet 112;

(2), the dry hot waste gas producing after burning again that puts out of the purified gas burning after the raw gas recovery of chemical products lower-grade metamorphic bituminous high temperature pyrolysis is purified simultaneously passes into hot waste gas surge chamber 132 from hot waste gas admission passage 131, by radiating pipe, be connected in series passage 134 again and flow into lower-grade metamorphic bituminous the carry out dewatered drying large to water content in radiating pipe 133, hot waste gas reduces through heat-exchange temperature simultaneously, and last Low Temperature Thermal waste gas is discharged from low temperature waste gas exhaust channel 136 by waste gas transition passage 135;

(3), lower-grade metamorphic bituminous in the cavity of housing 11 during through radiating pipe 133 heated baking, water in lower-grade metamorphic bituminous will evaporate in a large number, water vapor will enter water vapor outlet orifice 121 from the top of the cavity 111 of housing 11, flowing into water vapor hole gangs up in pipeline 122 again, the water vapor of high temperature is ganged up pipeline 122 and is upwards sealed in water vapor conduit 123 and pool together discharge from water vapor hole, the be cooled water vapor of cooling of some becomes and from water vapor hole, gangs up pipeline 122 after water of condensation and flow into condensation water collection pipeline 124 and pool together discharge downwards.

(4), the lower-grade metamorphic bituminous lower coal bunker 14 that finally falls into housing 11 bottoms after dehydrating, by transfer roller, constantly by what dehydrate in lower coal bunker 14, lower-grade metamorphic bituminously deliver to next high temperature pyrolysis operation, from and by enclosed belt conveyer constantly to coal the cavity of housing 11, realize continuously dry to lower-grade metamorphic bituminous continuously dehydrating.

Wherein, (2) step is more refined as, the dry hot waste gas producing after burning again that puts out of purified gas burning after the raw gas recovery of chemical products lower-grade metamorphic bituminous high temperature pyrolysis is purified simultaneously passes into hot waste gas surge chamber 132 from hot waste gas admission passage 131, from the radiating pipe of connecting with hot waste gas surge chamber 132, be connected in series passage 134 again and flow into the lower-grade metamorphic bituminous dewatered drying that carries out large to water content U-shaped radiating pipe 133, hot waste gas reduces through heat-exchange temperature simultaneously, from another radiating pipe of connecting with U-shaped radiating pipe 133, being connected in series passage 134 again flows into first waste gas transition passage 1351, from first waste gas transition passage 1351, enter second waste gas transition passage 1352 more according to this, in the 3rd waste gas transition passage 1353, from connecting low temperature waste gas exhaust channel 136 and discharge with last waste gas transition passage 1354.

In order to keep neat and tidy qualified discharge from the tail gas of low temperature waste gas exhaust channel 136 discharges is processed by existing gas emission device 16 (as " water pipe " and " water smoke ") of environment.

Wherein (3) be more refined as, lower-grade metamorphic bituminous in the cavity of housing 11 during through radiating pipe 133 heated baking, water in lower-grade metamorphic bituminous will evaporate in a large number, water vapor will enter water vapor outlet orifice 121 from the top of the cavity 111 of housing 11, flowing into water vapor hole gangs up in pipeline 122 again, the water vapor of high temperature is ganged up pipeline 122 and is upwards sealed in water vapor conduit 123 from water vapor hole, water vapor conduit 125 is collected the water vapor in two water vapor conduit 123 to have unified discharge, the be cooled water vapor of cooling of some becomes and from water vapor hole, gangs up pipeline 122 after water of condensation and flow into condensation water collection pipeline 124 downwards, water of condensation connecting tube 126 collects the water of condensation in two condensation water collection pipelines 124 to have unified discharge.

The principle of the hot waste gas dewatering unit that this is lower-grade metamorphic bituminous is the raw gas that utilizes lower-grade metamorphic bituminous high temperature pyrolysis to produce, this raw gas becomes purified gas after recovery of chemical products purifies recovery, first purified gas is burnt, the smokeless char that waste gas after recycling purified gas burning forms after to lower-grade metamorphic bituminous high temperature pyrolysis carries out the dry cooling of putting out, again to dry high temperature hot waste gas further tonifying Qi burning again of putting out after cooling, hot waste gas after recycling tonifying Qi burning is to after dewatering, enter stove and carry out lower-grade metamorphic bituminous the carrying out after preheating before high temperature pyrolysis, the hot waste gas being used in after preheating just dehydrates large lower-grade metamorphic bituminous the carrying out of water content, so do not need to increase extra energy consumption, reach energy-saving and cost-reducing, cost-effective object, and dehydrating effect is good, can make the lower-grade metamorphic bituminous water content after dehydration be controlled at 5% left and right.

Lower-grade metamorphic bituminous coal after third part dehydration

Lower-grade metamorphic bituminous after dehydration generally can be down to normal temperature through temperature after carrying, particularly winter temperature is lower, temperature may be lower, more suitable but but the lower-grade metamorphic bituminous temperature of wishing stove during high temperature pyrolysis coking remains between 200 ℃ to 300 ℃, so need to lower-grade metamorphic bituminously before entering the coking chamber of coal heat decomposition stove, carry out preheating to what enter stove.

As shown in Fig. 6, Fig. 9, Figure 10, lower-grade metamorphic bituminous coal supply apparatus 3, is arranged on lower-grade metamorphic bituminous coal heat decomposition stove 9 tops, comprises body of heater 91, adds coal bunker 31, steam discharger 32, primary heater unit 39, the upper interior portion of described body of heater 91 forms and adds coal bunker 31, described steam discharger 32 comprises steam outlet orifice 321, water vapor hole is ganged up pipeline 322, steam conduit 323, water of condensation collection channel 324, described steam outlet orifice 321 is arranged on the body of heater 91 of the surrounding that adds coal bunker 31, water vapor hole is ganged up pipeline 322 and is longitudinally being serially connected steam outlet orifice 321 is in column, steam conduit 323 is arranged on the top that water vapor hole is ganged up pipeline 322, the water vapor hole of ordered series of numbers is ganged up to pipeline 322 tops to be pooled together and is beneficial to steam discharge, water of condensation collection channel 324 is arranged on the bottom that water vapor hole is ganged up pipeline 322, the water vapor hole of ordered series of numbers is ganged up to pipeline 322 bottoms to be pooled together and is beneficial to condensed water elimination.

As shown in Fig. 6, Figure 10: primary heater unit 39 be placed in into device for coal 3 add coal bunker 31 belows, primary heater unit 39 is positioned at the top of coal heat decomposition stove 9.

As shown in Fig. 6, Fig. 7, Fig. 8, primary heater unit 39 mainly includes body of heater 91, the above heating by the exhaust gases passage 392 of exhaust air chamber 391, at least one, at least more than one preheater 393, and at least more than one preheating chamber 394, waste gas are assembled circuit 395.

As shown in Fig. 6, Fig. 7, Fig. 8, body of heater 91 adopts refractory materials to be built into, its profile is rounded is beneficial to space priorization, a circular coal bunker 31 that adds is formed at the top of body of heater 91, the steam outlet orifice 321 of steam discharger 32 is arranged on body of heater 91 walls of the annular surrounding that adds coal bunker 31, and steam conduit 323 also becomes corresponding circulating line with water of condensation collection channel 324.Body of heater 91 is in primary heater unit 39 punishment are, in, outer three layers of body of wall 913, 912, 911 (as Fig. 7, shown in Fig. 8), internal layer body of wall 913 forms exhaust air chamber 391, the bottom of exhaust air chamber 391 is provided with hot waste gas admission passage 3911, 911 of middle level body of wall 912 and outer body of wall form waste gas and assemble circuit 395, at waste gas, assemble on circuit 395 and be provided with waste gas primary outlet 3951, in heating by the exhaust gases passage 392 passes, middle level body of wall 913, 912 assemble circuit 395 by exhaust air chamber 391 and waste gas is communicated with, and will between internal layer body of wall 913 and middle level body of wall 912, be separated into several preheating chambers 394 (as Fig. 7, shown in Fig. 8, this example has 8 heating by the exhaust gases passages 392 will be separated out 8 preheating chambers 394), preheater 393 is placed in respectively two adjacent preheating chambers 394, as shown in Figure 6, Figure 7, the bottom that the entrance 3921 of heating by the exhaust gases passage 392 is positioned at exhaust air chamber 391 is communicated with exhaust air chamber 391 bottoms with the bottom of preheating chamber 394, and the top that the outlet 3922 of heating by the exhaust gases passage 392 is positioned at preheating chamber 394 by the top of preheating chamber 394 be placed in this place's waste gas and assemble circuit 395 and communicate, hot waste gas just enters the bottom of preheating chamber 394 from exhaust air chamber 391 bottoms like this, in preheating chamber 394, upwards string enters in waste gas gathering circuit 395 to preheating chamber 394 tops again, can be more effectively to preheater 393 transferring heats.

As Fig. 6, Fig. 7, Fig. 8, shown in Figure 10: preheater 393 is cylindricality, comprise preheating skin 3933, preheating internal layer 3932, cross coal preheating channel 3931, preheating internal layer 3932 intermediate formation are crossed coal preheating channel 3931, cross coal preheating channel 3931 tops and add coal bunker 31 bottoms and communicate, the body of heater 91 of crossing coal preheating channel 3931 bottoms is provided with intermediate regulations coal bunker 33, crossing coal preheating channel 3931 bottoms communicates with intermediate regulations coal bunker 33, intermediate regulations coal bunker 33 communicates with the coking chamber 61 of coal heat decomposition stove 9 by blanking breeching 34, the lower-grade metamorphic bituminous coal preheating channel 3931 that fell into from add coal bunker 31 after dehydration is heated preheating again like this, reach in the coking chamber 61 that enters coal heat decomposition stove 9 after certain temperature and carry out high temperature pyrolysis charing, and be heated the lower-grade metamorphic bituminous of preheating in mistake coal preheating channel 3931, can produce a small amount of steam, steam upwards enters and adds in coal bunker 31, from add the steam outlet orifice 321 of coal bunker 31 surroundings, discharge again, in intermediate regulations coal bunker 33, also may exist in addition a small amount of steam to shed, on body of heater 91 walls of intermediate regulations coal bunker 33, also offer and regulate coal bunker steam to portal 331 for discharging a small amount of steam of intermediate regulations coal bunker 33.

As Fig. 6, Fig. 7, Fig. 8, shown in Figure 10: preheating outer 3933 adopts fire-resistant thermally conductive material, preheating internal layer 3932 employing heat conduction heat storage performances preferably silicon carbide material are made, cross coal preheating channel 3931 and be arranged in preheating internal layer 3932, preheating outer 3933 adopts refractory materialss to be beneficial to high temperature hot waste gas by exhaust air chamber 394 to preheating internal layer 3932 transferring heats like this, preheating internal layer 3932 employing heat conduction heat storage performances preferably carbofrax material are made and the heat transmitting from preheating skin 3933 can be carried out to accumulation of heat storage, with this, reach and carry out even preheating to crossing lower-grade metamorphic bituminous in coal preheating channel 3931.

As shown in Fig. 6, Figure 10, in addition, at the top of exhaust air chamber 391, upper observation hole 3912 is set, in the bottom of exhaust air chamber 391, lower observation hole 3913 is set so that technician observes the working condition of exhaust air chamber 391, coal heat decomposition stove 9 bottoms.

The principle of work of the coal supply apparatus 3 that this is lower-grade metamorphic bituminous is:

(1), lower-grade metamorphic bituminous after the dehydration in the coal bunker of hot waste gas dewatering unit 1 14 joined to adding in coal bunker 31 of coal supply apparatus 3 by existing transfer roller 15 (enclosed belt conveyer or bucket are carried transfer roller);

(2), hot waste gas after burning is entered from hot waste gas admission passage 3911, by heating by the exhaust gases passage 392, entering waste gas assembles in circuit 395, can carry out heat transmission to the skin of the primary heater unit 39 between two preheating chambers 394, thereby to falling into the lower-grade metamorphic bituminous heating preheating of coal preheating channel 3931, the lower-grade metamorphic bituminous steam giving out of heating preheating upwards enters and adds in coal bunker 31, from add the steam outlet orifice 321 of coal bunker 31 surroundings, discharge again, simultaneously to lower-grade metamorphic bituminous heating preheating, water evaporation can be lowered the temperature to the hot waste gas of discharging after burning from exhaust air chamber 391 again, finally from waste gas, assemble waste gas primary outlet 3951 discharges of circuit 395,

(3) the lower-grade metamorphic bituminous conduct, through heating preheating in (2) enters stove coal, regulates coal bunker 33 and blanking road 34 to enter in the coking chamber 61 of coal heat decomposition stove 9 carry out high temperature pyrolysis charing by intermediate bin; In (2), from waste gas primary outlet 3951, discharge hot waste gas and communicate with the hot waste gas admission passage 131 of hot waste gas dewatering unit 1 by corresponding hot waste gas connecting tube 17, give the required hot waste gas that work is provided of hot waste gas dewatering unit 1.

Wherein more optimize a step, in (2), from waste gas primary outlet 3951, discharge hot waste gas and first by cooling existing tubular heat exchanger 4 heat exchange, by corresponding hot waste gas connecting tube 17, communicate with the hot waste gas admission passage 131 of hot waste gas dewatering unit 1 again, give the required hot waste gas that work is provided of hot waste gas dewatering unit 1.

The high temperature pyrolysis (charing heating, burnt upgrading, dry coke quenching) that the 4th part is lower-grade metamorphic bituminous

The high temperature pyrolysis charing heating that first segment is lower-grade metamorphic bituminous

As shown in figure 25, pyrolysis of coal carbonizing apparatus 6 is arranged on body of heater 91 middle parts, mainly comprises that coking chamber 61, outer gas-operated thermal bath facility 64, internal combustion heating unit 67, quirk bow 65 form, as shown in figure 12: coking chamber 61 is by fire-resistant thermally conductive material, outer ring wall 612, 611 form an annulus, being centered around coking chamber exterior wall 611 ring peripheries is outer gas-operated thermal bath facility 64, wherein outer gas-operated thermal bath facility 64 is mainly some groups of identical the first combustion heaters 62 of (9 groups of this examples) structure, the second combustion heater 60 and gas reversing system 66 form (seeing Figure 25), in addition, as shown in figure 25: because coking chamber 61 is highly higher, wherein outer gas-operated thermal bath facility 64 is mainly divided into, in, lower Three-section type heating, every section has 9 groups of identical first combustion heaters 62 of structure, the second combustion heater 60 forms.

As shown in figure 16: in coking chamber, in ringwall 612 rings, be internal combustion heating unit 67, internal combustion heating unit 67 is mainly by some groups of the 3rd combustion heater 68, the 4th combustion heater 69 and the quenching waste gas heaters 63 that (3 groups of this examples) structure is identical.

As shown in Figure 11, Figure 12, 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 figure 12: body of heater 91 exterior walls that the first combustion chamber 621 is made by refractory materials and fire-resistant thermally conductive material are made the gas-fired quirk that coking chamber outer ring wall 611 and outer quirk partition wall 625 surround a relative closure.

As shown in Figure 11,12: 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 12: 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 12: 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 12: body of heater 91 exterior walls that the second combustion chamber 601 is made by refractory materials and fire-resistant thermally conductive material are made the gas-fired quirk that coking chamber outer ring wall 611 and outer quirk partition wall 625 surround a relative closure.

As shown in figure 12: the second coal gas enters arm 602 and leads in the first combustion chamber 601 through body of heater 91 exterior walls.

As shown in figure 12: 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 and the second unidirectional waste gas valve).

As shown in Figure 11, Figure 12, 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, in this example, outer gas-operated thermal bath facility 64 is provided with quirk partition wall 625 partition walls outside 18 roads altogether, forms 9 groups of associated burning groups; In addition, as shown in figure 25; Because coking chamber 61 is highly higher, wherein outer gas-operated thermal bath facility 64 is mainly divided into the heating of upper, middle and lower segment formula, and every section has 9 groups of identical the first combustion heaters 62 of structure, second combustion heaters 60 to form.

In sum, combustion heater and regenerative heat exchange method are;

When 1, the coal gas in the first combustion chamber 621 burns, the purified gas of raw gas after recovery of chemical products purifies enters arm 622 by the first coal gas and enters in the first combustion chamber 621, the first one-way air valve 629 is opened, and allows air to enter pipe the 627 and first accumulation of heat chamber 626 from the first air and flows into the first combustion chamber 621; The first described unidirectional waste gas valve 620 is closed, the hot waste gas producing leads to 6251 holes by combustion chamber and enters behind the second combustion chamber 601, hot waste gas is during through the second heat storage 603 in the second accumulation of heat chamber 606, the second 603 pairs of heat storages hot waste gas carries out absorbing and cooling temperature, and hot waste gas becomes the relatively low low temperature waste gas of temperature and discharges from the second combustion exhaust exhaust outlet 608;

2, during the gas-fired in taking turns to the second combustion chamber 601, the purified gas of raw gas after recovery of chemical products purifies enters arm 602 by the second coal gas and enters in the second combustion chamber 601, the second one-way air valve 609 is opened, air enters arm 607 from the second air and enters into the second combustion chamber 601 processes through the second accumulation of heat chamber 606, and the heat heating that air is discharged by the second heat storage 603 becomes the gas-fired in combustion-supporting the second combustion chamber 601 of warm air; Meanwhile, the second described unidirectional waste gas valve 600 is closed, hot waste gas after gas-fired in the second combustion chamber 601 enters behind the first combustion chamber 621 by combustion chamber through hole 6251, hot waste gas is during through the first heat storage 623 in the first accumulation of heat chamber 626, the first 623 pairs of heat storages hot waste gas carries out absorbing and cooling temperature, and hot waste gas becomes the relatively low low temperature waste gas of temperature and discharges from the first combustion exhaust exhaust outlet 628;

3, in like manner, the 1st step and the 2nd step alternate cycles are carried out.

As shown in figure 11: on body of heater 91 exterior walls, each 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 intuitively 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 pyrolysis of coal process.

As shown in figure 24: 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 Figure 13, Figure 14, shown in Figure 15-1, 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 (Figure 14, shown in Figure 15-1).

As Figure 13, 15, shown in Figure 15-1: 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 Figure 11, Figure 15-1, 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 Figure 15-1: 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 link up, 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 links up, 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 6681 and first combustion exhaust exhaust outlet 628 link up, and the first combustion exhaust is in charge of to the 6681, 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 link up, 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 links up, by the second gas manifold 6683, the second coal gas bustle pipe 6685 will, the second coal gas enters 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 linked up, and the second combustion exhaust is in charge of to the 6693, 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 24; 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.

As shown in Figure 11, Figure 15-1 and Figure 12～Figure 15, Figure 24: the method for heating and controlling of this outer gas-operated thermal bath facility 64 is:

(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 obtains raw gas purified gas and blasts coal gas supervisor 668 after recovery of chemical products purifies, 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 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 obtaining purified gas after raw gas is after reclaiming only, 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.

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 two groups of combustion heater alternate combustion, 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 coking cost.

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

As shown in Figure 16, Figure 25, internal combustion heating unit 67 is mainly by some groups of identical combustion heater 68,69 and the quenching waste gas heaters 63 of (3 groups of this examples) structure.

As shown in Figure 21, Figure 18, quenching waste gas heater 63 comprises internal-quirk 631,632, blowdown pipes 6321 of air benefit pipe, secondary air compensating pipe 6322, tonifying Qi circuit 633, center ringwall 634, internal-quirk partition wall 635, centre channel 638, and internal-quirk 631 is arranged on quirk bow 65.

As shown in figure 18, internal-quirk 631 mainly by ringwall in coking chamber 612 be positioned at coking chamber ringwall 612Nei center ringwall 634 internal-quirk partition wall 635 together with at least and be divided at least one group of above main internal-quirk 636, secondary internal-quirk 637 arranged side by side, as shown in figure 18,6 main internal-quirks 636 of this example and 6 secondary internal-quirks 637, form side by side and amount to 6 groups of internal-quirks 631.

As shown in figure 21, in secondary internal-quirk 637, shutoff dividing plate 6371 is set, lower shutoff dividing plate 6372, is divided into upper, middle and lower segment by secondary internal-quirk 637, i.e. the secondary internal-quirk 6375 of epimere, the secondary internal-quirk 6374 in stage casing, the secondary internal-quirk 6373 of hypomere; On quirk partition wall 635 between the secondary internal-quirk 6375 of epimere and main internal-quirk 636, be provided with waste gas and gang up hole 6303, hot waste gas exhaust channel 6306 is offered at the secondary internal-quirk 6375 of epimere and main internal-quirk 636 tops, and hot waste gas exhaust channel 6306 communicates with the exhaust air chamber 391 on body of heater 91 tops.

As shown in Figure 21, Figure 18, on quirk partition wall 635 between the secondary internal-quirk 6373 of hypomere and main internal-quirk 636, quirk is set and gangs up hole 6304, quirk is ganged up hole 6304 near lower shutoff dividing plate 6372 belows, as shown in figure 18,6 quirks are ganged up hole 6304 connects the secondary internal-quirks 6373 of 6 hypomeres respectively with main internal-quirk 636 together with.

As shown in figure 21, center ringwall 634 surrounds centre channel 638, in centre channel 638, with the concordant place of upper shutoff dividing plate 6371, one channel partition 6382 is set, centre channel 638 is separated into upper and lower two portions, be that formation high temperature combustible exhaust gas admission passage 6383 is divided in bottom, formation buffer zone 6381 is divided on top.

As shown in Figure 19, Figure 21, ringwall 634 bottoms in center are provided with the combustible exhaust gas that connects high temperature combustible exhaust gas admission passage 6383 and main internal-quirk 636 and the secondary internal-quirk 6373 of hypomere and enter ringwall 634 tops, Kong639， center and be provided with and connect buffer zone 6381 and enter hole 6301 with the waste gas of main internal-quirk 636 and the secondary internal-quirk 6375 of epimere.

As shown in Figure 21, Figure 20, Figure 19: tonifying Qi circuit 633 is arranged on body of heater 91, air is mended pipe 632 and is led to tonifying Qi circuit 633, blowdown pipe 6321, secondary air compensating pipe 6322 and tonifying Qi circuit 633 UNICOMs, pass from the bar bow 651 of quirk bow 65 inside that extends upwardly to the quirk partition wall 635 between major and minor internal-quirk 636,637 below.

As shown in Figure 21, Figure 12: blowdown pipe 6321 be arranged on major and minor internal-quirk 636,637 between the inside of quirk partition wall 635, the outlet 6323 of a blowdown pipe 6321 is positioned at lower shutoff dividing plate below 6372, leads to respectively the secondary internal-quirk 6373 of main internal-quirk 636 and hypomere;

As shown in figure 21, secondary air compensating pipe 6322 is also arranged on the inside of the quirk partition wall 635 of major and minor internal-quirk 636,637, and the secondary air compensating of secondary air compensating pipe 6322 outlet 6324 is positioned at upper shutoff dividing plate 6371 concordant or a little higher than with upper shutoff dividing plate 6371, lead to main internal-quirk 636.

As shown in Figure 21, Figure 17, the secondary internal-quirk 6374 in stage casing forms the independent gas combustion chamber of relative closure, the secondary internal-quirk 6374 in a upper stage casing connects into relevant one group to the secondary internal-quirk 6374 in next stage casing of next-door neighbour by chamber passage 6305, chamber passage 6305 below upper shutoff dividing plate 6371 and from pass in a main internal-quirk 636 between next stage casing pair internal-quirk 6374 of the secondary internal-quirk 6374 in stage casing and next-door neighbour, as shown in figure 17,6 secondary internal-quirks 6374 in stage casing connect into 3 groups by 3 chamber passages 6305.

As Figure 21, Figure 16, shown in Figure 20, the secondary internal-quirk 6374 in two stage casings in secondary internal-quirk 637 (is gone up, lower shutoff dividing plate 6371, between 6372) one group of association the 3rd combustion heater 68 that structure is identical is set, the 4th combustion heater 69, the first burning heater 62 of its structure and combustion principle and above introduction, the second burning heater 60 is almost completely identical, also comprise that the 3rd combustion heater 68 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 Figure 21, Figure 16, need to illustrate different is the secondary internal-quirk 6374 in the 3rd 681Shi stage casing, combustion chamber of the 3rd burning heater 68, by relatively airtight gas-fired quirk between upper and lower shutoff dividing plate 6371,6372.

As Figure 21, Figure 20, shown in Figure 19: the 3rd coal gas enters arm 682 and leads to the 3rd combustion chamber 681 (being stage casing pair internal-quirk 6374) through extending upward through quirk partition wall 635 inside below from the bar bow 651 of quirk bow 65, 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 passed below the bar bow 651 of quirk bow 65 by extending passage 6861, extend upward through quirk partition wall 635 inside and lead to 681 bottoms, the 3rd combustion chamber, 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, 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 associated one group (shown in Figure 17) by chamber passage 6305 with the 3rd combustion chamber 681.

Wherein, as shown in Figure 15-1, 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 Figure 15-1, the 4th coal gas of the 4th combustion chamber 691 of the 4th burning heater 69 enters arm 692, the 3rd air and enters arm 697 and the 3rd 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.

In sum, 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 completely identical, repeat no more here.

These routine internal combustion heating unit 67 Method And Principles are that the secondary internal-quirk 6375 of epimere and the secondary internal-quirk 6373 of hypomere and main internal-quirk 636 are that the high temperature combustible exhaust gas that utilizes dry coke quenching to produce carries out tonifying Qi combustion heating, and the secondary internal-quirk 6374 in stage casing is to utilize in addition the purified gas combustion heating of raw gas after recovery of chemical products purifies.

These routine internal combustion heating unit 67 methods are:

(1), when high temperature combustible exhaust gas enters from the high temperature combustible exhaust gas admission passage 6383 of centre channel 638 bottoms, through combustible exhaust gas, entering hole 639 enters in main internal-quirk 636 and the secondary internal-quirk 6373 of hypomere, the high temperature combustible exhaust gas temperature just having entered is higher generally all at 1000 ℃～1100 ℃, but along with waste gas rises and externally does work and dispel the heat in main internal-quirk 636 and the secondary internal-quirk 6373 of hypomere, temperature can reduce;

(2), at this moment by a blowdown pipe 6321, give the air that fills in main internal-quirk 636 and the secondary internal-quirk 6373 of hypomere, thereby make high temperature combustible exhaust gas obtain airborne oxygen burning, the amount of the combustible gas in high-temperature combustible gas body is certain after all, and the heat and the temperature that provide coking chamber 61 pyrolysis of coal required are provided;

(3) so, when passing through quirk through the waste gas after tonifying Qi burning, the high temperature combustible exhaust gas of the secondary internal-quirk 6373 of hypomere gangs up hole 6304 around in main internal-quirk 636, with the waste gas after the high-temperature combustible gas body in main internal-quirk 636 and burning, mix in main quirk 636 and rise, along with the waste gas after mixed high-temperature combustible gas body and burning can be to providing heat and externally acting to the pyrolysis of coal in coking chamber 61 by ringwall in coking chamber 612 in uphill process, temperature can reduce gradually;

(4) so need to again enter short covering gas by secondary air compensating pipe 6322 in the middle and upper part of main internal-quirk 636, make the waste gas further burning again after mixed high-temperature combustible gas body and burning, this provides required heat and temperature not only to coking chamber 61 pyrolysis of coal, and can make again high-temperature combustible gas body fully burn, improve high-temperature combustible gas work by combustion efficiency;

(5), in addition, owing to having buffer zone 6381 in the middle of main internal-quirk 636 and the secondary internal-quirk 6375 of epimere, ringwall 634 tops in center are provided with perforation buffer zone 6381 and enter hole 6301 with the waste gas of main internal-quirk 636 and the secondary internal-quirk 6375 of epimere, on the quirk partition wall 635 between main internal-quirk 636 and the secondary internal-quirk 6375 of epimere, be provided with waste gas and gang up hole 6303, between the secondary internal-quirk 6375 of each main internal-quirk 636 and epimere, completely mutually connect, waste gas after the burning of tonifying Qi for the second time can be mixed completely mutually, between the secondary internal-quirk 6375 of the main internal-quirk 636 in place and epimere, reaching samming all presses, balanced heat and temperature is provided can to the pyrolysis of coal on whole coking chamber 61 tops,

(6), finally by the waste gas of crossing after secondary air compensating burning, by the hot waste gas exhaust channel 6306 at main internal-quirk 636 and the secondary internal-quirk of epimere 6375 tops, enter the exhaust air chamber 391 on body of heater 91 tops;

(7), meanwhile, in order to make up the quantity not sufficient of the combustible gas in high-temperature combustible gas body, be not enough to provide the required heat of coking chamber 61 pyrolysis of coal and the defect of temperature, and can making full use of the raw gas producing in pyrolysis of coal process, give the 3rd combustion heater 68, the 3rd combustion chamber 681 of the 4th combustion heater 69 and the 4th combustion chamber 691 provide the purified gas burning of raw gas after recovery of chemical products purifies, in the secondary internal-quirk 637 in stage casing, add heat, enough heat and temperature are provided not only to coking chamber 61 pyrolysis of coal, improved again the utilization ratio of raw gas simultaneously, minimizing is discharged in atmosphere, avoid atmospheric pollution, protected environment.

The burnt upgrading of second section

Due to lower-grade metamorphic bituminous, in coking chamber, carry out the coke forming after high temperature pyrolysis or be referred to as " smokeless char ", the existence inequality of being heated, the situation that " smokeless char " piece grain size is irregular, certain temperature and time are provided preferably to " smokeless char ", make fully to contact between " smokeless char ", mutually carry out heat transmission, this just needs burnt modifying apparatus 610.

As shown in Figure 22, Figure 21, Figure 19, Figure 25, burnt modifying apparatus 610, be arranged in body of heater and be positioned on quirk bow 65, burnt modifying apparatus 610 comprises that burnt upgrading chamber 6100, main internal-quirk 636 bottoms, the secondary internal-quirk 6373 of hypomere are formed at the bottom of coking chamber 6, center ringwall 634 surrounds the bottom of the high temperature combustible exhaust gas admission passage 6383 of centre channel 638, and ringwall 634 bottoms in center are provided with perforation high temperature combustible exhaust gas admission passage 6383 and enter hole 639 with the combustible exhaust gas of main internal-quirk 636, the secondary internal-quirk 6373 of hypomere.

In addition, as shown in figure 11: body of heater 91 exterior walls are provided with burnt upgrading temperature monitoring hole 6101, in 6101 holes, burnt upgrading temperature monitoring hole, be provided with a burnt upgrading thermometer 6102.

As shown in figure 24: industry control center 90 and burnt upgrading thermometer 6102 electrical connections, the burnt upgrading temperature signal of the upgrading thermometer 6102 of automatically focusing is monitored.

The method that this burnt modifying apparatus carries out upgrading is: the outside body of heater exterior wall by heat insulating refractory material is incubated, inside enters hole 639 by high temperature combustible exhaust gas from combustible exhaust gas and enters main internal-quirk 636 bottoms, in the secondary internal-quirk 6373 of hypomere, utilize the waste heat of high temperature combustible exhaust gas itself that insulation institute's heat requirement and temperature are provided, the high temperature combustible exhaust gas temperature particularly just having entered is just applicable to burnt upgrading between 1000 ℃～1100 ℃, make " smokeless char " retain certain hour in burnt upgrading chamber, fully contact between " smokeless char " piece grain, carry out each other heat transmission, reach evenly object of coke button size.

The 3rd joint quirk bow

As shown in Figure 21, Figure 20, Figure 18, because the quirk partition wall 635, center ringwall 634 of ringwall 612 and internal combustion heating unit 67 is all arranged in furnace chamber in coking chamber, need quirk bow 65 for it provides support, the laying of various pipelines is provided to again internal combustion heating unit 67 simultaneously.

As Figure 21, Figure 20, shown in Figure 19, quirk bow 65 is arranged on coking chamber 61, internal combustion heating unit 67, in the furnace chamber of burnt modifying apparatus 610 belows, mainly comprise the bar bow 651 of some, Huo Gong center ringwall 652, ringwall 652 middle parts in Huo Gong center form high temperature combustible exhaust gas passage 653, 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, the master of quantity and internal combustion heating unit 67, secondary internal- quirk 636, 637 sums are consistent.

As Figure 21, shown in Figure 20, 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 blowdown pipe 6321 arranging in the body of wall of tight another adjacent fire bow 651, secondary air compensating pipe 6322, provide convenience to the pipeline laying of internal combustion heating unit 67, article 6, in the body of wall of fire bow 651, be set up in parallel respectively the extension passage 6861 that 6 article of the 3rd coal gas enters arm 682 and the 3rd accumulation of heat chamber 686, 6 blowdown pipes 6321 that are set up in parallel respectively in the body of wall of another 6 fire bows 651, secondary air compensating pipe 6322, make the various conduit arrangements of internal combustion heating unit 67 orderly, be unlikely to interfere.

The 4th joint dry coke quenching

Coke temperature after upgrading is higher, generally all at 1000 ℃～1100 ℃, need to carry out cooling could convenience to high temperature coke and carries and store, and need to have dry coke quenching auxiliary 7.

As shown in Figure 22, Figure 23, dry coke quenching auxiliary 7 is arranged on quirk and bends 65 belows, comprises the 71, of high temperature coke quencher low temperature coke quencher 72, quenching bridge bow 73, quenching exhaust gas fan 75; High temperature coke quencher 71 is arranged on the below of quirk bow 65, and the top of high temperature coke quencher 71 communicates with high temperature combustible exhaust gas passage 653; Quenching bridge bow 73 is arranged between the 71Yu of high temperature coke quencher low temperature coke quencher 72, and quenching bridge bow 73 comprises Qiao Gong731, wind assembling set 74, the dry circuit 76 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc., the dry pipe 77 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc.; The 6 Tiao Qiaogongyi high temperature 71He of the coke quencher low temperature 72Zhou of coke quencher centers are partitioned at an angle spoke shape and arrange in the dry circuit 76 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc., bridge bends 731 middle parts and forms wind assembling set 74, wind assembling set 74 be one straight through up big and down small inversed taper platform shape chamber, the top of wind assembling set 74 is provided with the lower openings 79 of semisphere blast cap 78， wind assembling set 74 towards low temperature coke quencher 72; The dry pipe 77 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc. is arranged in bridge bow 731, wind assembling set 74 is led in dry pipe 77 one end that relieve dizziness, high fever, infantile convulsions, epilepsy, etc., the other end leads to the dry circuit 76 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc., the dry circuit 76 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc. is connected by blast pipe 761 and quenching exhaust gas fan 75, and quenching exhaust gas fan 75 is connected by the exhaust gas fan 666 of pipeline and gas reversing system 66; Bottom opening 721 places of low temperature coke quencher 72 are provided with the valve 70 that discharges of the coke.

As shown in figure 22, be provided with the quenching temperature monitoring hole 711 of leading to high temperature coke quencher 71 on the exterior wall 91 of body of heater, quenching temperature monitoring is provided with quenching thermometer 712 in hole.

As shown in figure 24, quenching thermometer 712, quenching exhaust gas fan 75 and discharge of the coke valve 70 and 90 electrical connections of industry control center, 90 pairs, industry control center quenching exhaust gas fan 75 and the valve 70 that discharges of the coke are controlled automatically, by 712 pairs of quenching temperature of quenching thermometer, monitor.Quenching thermometer 712, quenching exhaust gas fan 75 and the valve 70 that discharges of the coke are by coke quenching device controller 907 and 90 electrical connections of industry control center, and certainly from electric control theory, in this example, coke quenching device controller 907 does not form the restriction to this routine protection domain.

The method of utilizing low-temperature burning waste gas to carry out dry coke quenching of this routine dry coke quenching auxiliary 7 is:.

(1) waste gas after gas-fired in the 3rd combustion heater 68 of the first burning heater 62, the second burning heater 60 and the internal combustion heating unit 67 of outer gas-operated thermal bath facility 64, the 4th combustion heater 69 is introduced to quenching exhaust gas fan 75, because the waste gas after gas-fired naturally becomes the relatively low low temperature waste gas of temperature respectively after heat storage heat absorption;

(2) utilize quenching exhaust gas fan 75 that low temperature waste gas is passed through to blast pipe 761 successively, the dry circuit 76 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc., the dry pipe 77 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc. blasts in wind assembling set Room 74, low temperature waste gas converges in wind assembling set Room 74, because wind assembling set 74 adopts unique structure, the blast cap 78 at top is semisphere, middle part chamber is inversed taper platform shape structure, so low temperature waste gas can be from lower openings 79 blowout and going out, be blown in low temperature coke quencher 72, upwards seal in again high temperature coke quencher 71, high temperature coke quencher " smokeless char " of 71 neutralizations from the 71Luo Xiang of high temperature coke quencher low temperature coke quencher 72 lowered the temperature, this example adopts air-cooled form to lower the temperature to " smokeless char ", therefore be referred to as dry putting out,

(3) in addition, this routine dry coke quenching auxiliary 7 also can produce a certain amount of high-temperature combustible gas body dry in putting out process, because, in one, low temperature waste gas, contain a small amount of moisture content run into high temperature after burnt upgrading " can there is chemical reaction in " smokeless char ", produce some inflammable gass; Also there is the not clean-burning inflammable gas of part in low temperature waste gas itself two; Three, the high temperature after burnt upgrading " " smokeless char " itself residual a part of inflammable gas also; these inflammable gass upwards enter the high temperature combustible exhaust gas passage 653 at ringwall 652 middle parts, Huo Gong center, thus to the major and minor quirk 636,637 of the internal combustion heating unit 67 of coal heat decomposition stove, provide source of the gas.

The low temperature waste gas of lifting in this example refers to the waste gas that the raw gas that produces in the lower-grade metamorphic bituminous pyrolytic process purified gas after recovery of chemical products purifies produces after the outer gas-operated thermal bath facility of coal heat decomposition stove and the burning of the combustion heater in internal combustion heating unit, this waste gas becomes cryogenic gas after the heat storage absorbing and cooling temperature in accumulation of heat chamber, this dry coke quenching auxiliary is also advantageous in that and utilizes the incombustibility of combustion exhaust own to replace existing use inert nitrogen to carry out dry putting out, equipment is simple, with low cost, remarkable in economical benefits.This example is compared with traditional wet quenching, more can a large amount of water-gas not occur because large water gaging runs into high temperature coke and to airborne release, atmospheric pollution is little, and water saving, can make full use of the raw gas producing in pyrolysis of coal process again simultaneously.

The 5th joint Continuous coking

Comprehensively above-mentioned, this routine feature be by pyrolysis of coal charing, upgrading, the dry process integration that puts out in the hot body of heater of same coal, make charing, upgrading, dry putting out be able to continuous realization, so lower-grade metamorphic bituminous after preheating after dehydrating, carry out again charing, upgrading, dry putting out and finally become coke, or it is more definite to be referred to as " smokeless char ".

The comprehensive cyclic utilization of the 5th part, pyrolysis of coal gas

Chapter 1, the reclaiming clean utilization of raw gas (derivation, condensation, change are produced)

First segment raw gas take-up gear

The lower-grade metamorphic bituminous raw gas producing in high-temperature coal pyrolytic process, containing a lot of useful compositions, need to be derived to utilize raw gas.

As Figure 26, raw gas take-up gear 8, comprises raw gas concentration chamber 81, interior derivation passage 82, and outer derivation passage 83, derivation main channel 84, derive circuit 85; It is integrally formed that raw gas concentration chamber 81 is arranged on top and the coking chamber 61 of coking chamber 61; As shown in Figure 17, Figure 26, interior derivation passage 82 arranges in quirk partition wall 635, and interior derivation feeder connection 821 leads to coking chamber 61 through interior ringwall 611 middle parts, the raw gas concentration chamber 81 that interior derivation channel outlet 822 is led to coking chamber top through interior ringwall 611; As shown in Figure 17, Figure 26, Figure 11, outer derivation passage 83 arranges in the exterior wall of body of heater 91, lower outside derivation feeder connection 831, upper outside derivation feeder connection 834 lead to coking chamber 61 through outer ring wall 612 middle parts, the raw gas concentration chamber 81 that outer derivation channel outlet 832 is led to coking chamber top through outer ring wall 612.

As shown in figure 26, deriving main channel 84 is arranged in the exterior wall of body of heater 91 of coal heat decomposition stove, derivation main channel entrance 841 communicates with raw gas concentration chamber 81 and extends up in the exterior wall top derivation circuit 85 that body of heater 91 is set again, and derives circuit 85 a raw gas export mouth 851 is set.

As Figure 26, Figure 17, shown in Figure 11, in this example because coking chamber 61 annular chamber, so raw gas concentration chamber 81 is corresponding annular chamber also, article 6, in, deriving passage 82 is separately positioned in 6 road quirk partition walls 635, through interior ringwall 611, lead to coking chamber 61, article 6, 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 612 lead to coking chamber 61, wherein, because the circumference of coking chamber 61, so interior ringwall 611 at coking chamber 61, on outer ring wall 612, be respectively arranged with a plurality of interior derivation feeder connections 821 and lower outside derivation feeder connection 831, upper outside derivation feeder connection 834, again because the height of coking chamber 61 is high, interior derivation feeder connection 821 and lower outside derivation feeder connection 831, the setting of staggering up and down of upper outside derivation feeder connection 834, as Figure 26, in shown in Figure 11, derive feeder connection 821 higher than lower outside derivation feeder connection 831, but lower than upper outside derivation feeder connection 834 places, this example adopts this structure better to derive the raw gas that in coking chamber 91, different sections produce, around raw gas concentration chamber 81, be also provided with 4 the larger raw gas of sectional area main channels 84 in addition and lead to derivation circuit 85, the object arranging like this can conveniently derive a large amount of raw gas in raw gas concentration chamber 81.

As shown in figure 26, on the exterior wall of body of heater 91, be provided with the raw gas temperature monitoring holes 811 that leads to raw gas concentration chamber 81, in raw gas temperature monitoring holes 811, place raw gas temperature table 812.

As shown in figure 24, raw gas temperature table 812 and 90 electrical connections of industry control center, industry control center 90 is by temperature in raw gas temperature table 812 monitoring raw gas concentration chamber 81.

This routine feature by the raw gas that different sections produce in coking chamber 61 respectively from interior derivation feeder connection 821 and lower outside derivation feeder connection 831, upper outside derivation feeder connection 834 enter interior derivation passage 82 and derivation passage collect again in raw gas concentration chamber 81 in going out 83, certainly a large amount of raw gas in coking chamber 61 are directly to rise up in raw gas concentration chamber 81, raw gas a large amount of in raw gas concentration chamber 81 enter derivation circuit 85 by deriving main channel 84, finally from raw gas export mouth 851, discharge.

Second section raw gas condensing works

As shown in figure 26, from raw gas export mouth, discharge 852 raw gas temperatures higher, for the ease of high temperature raw gas, changing antenatal conveying, need to use 86 pairs of high temperature raw gas of raw gas condensing works and carry out cooling.

The reclaiming clean of the 3rd joint raw gas

The raw gas of raw gas after the ammoniacal liquor of raw gas condensing works sprays is transported to gas-liquid separation device together with the mixed solution of coal tar and ammoniacal liquor through effuser and carries out gas-liquid separation, in mixed solution after gas-liquid separation, contain multiple useful organic component and for industry, refine other auxiliary product as carbolic oil, naphtalene oil, washing oil, carbolineum etc., coal gas after gas-liquid separation is after air cooling cooling, after dry back receiving apparatus purifies recovery, become purified gas, purified gas can store for burning.

Chapter 2, the recycle after raw gas reclaiming clean (burning, dryly put out, burnt upgrading, burning, lower-grade metamorphic bituminous preheating, lower-grade metamorphic bituminous dehydration, tonifying Qi air heating again)

First segment raw gas purifies the purified gas burning after reclaiming

Raw gas is after recovery of chemical products purifies recovery, part purified gas is transported to combustion heater in the outer gas-operated thermal bath facility described in the above lower-grade metamorphic bituminous pyrolysis charring part of introducing of this example and the combustion heater in internal combustion heating unit burns, and to pyrolysis of coal, provides thermal source.

Dry the putting out of waste gas after the burning of second section purified gas

Purified gas burning cmpletely in the combustion heater in gas-operated thermal bath facility and the combustion heater in internal combustion heating unit outside, utilize not combustion exhaust cmpletely to carry out the dry cooling of putting out to high temperature coke, generation water-gas can react when the moisture content in combustion exhaust does not contact with high temperature coke cmpletely, take away again remaining volatile combustible gases after high temperature coke upgrading simultaneously, the final high-temp waste gas that contains inflammable gas composition that forms, specifically see the introduction of above dry coke quenching chapters and sections, repeat no more here.

The burnt upgrading of high temperature combustible exhaust gas after dry the putting out of the 3rd joint

High temperature combustible exhaust gas temperature after dry putting out can reach 1000 ℃～1100 ℃, and burnt upgrading just in time need to be incubated upgrading at this temperature section, specifically how to be incubated upgrading, specifically sees and the introduction of above dry coke quenching chapters and sections repeats no more here.

High temperature combustible exhaust gas tonifying Qi burning again after dry the putting out of the 4th joint.

High temperature combustible exhaust gas is externally acting in STRENGTH ON COKE upgrading process, temperature can reduce, can drop to 900 ℃～1000 ℃, and pyrolysis of coal charing is temperature required higher in coking chamber, on average all at 1400 ℃～1500 ℃, so fill into air for the first time to high temperature combustible exhaust gas, carry out combustion heating, because coking chamber height is higher, and combustiblecomponents exists a certain amount of in high temperature combustible exhaust gas, so need to increase and have the 3rd combustion heater at internal combustion heating unit middle part, the 4th combustion heater is to supplement the required heat of pyrolysis of coal, finally on internal combustion heating unit top, fill into for the second time again air and carry out again abundant combustion heating by high temperature combustible exhaust gas, both reached to pyrolysis of coal and provided outside thermal source acting, can allow again high temperature combustible exhaust gas fully burn, the pollution of minimizing to atmospheric environment, specifically see the narration in above lower-grade metamorphic bituminous pyrolysis charring, here repeat no more.

Hot waste gas after the 5th joint tonifying Qi burning is to lower-grade metamorphic bituminous preheating

As shown in figure 25, the waste gas after the quenching waste gas heater of internal combustion heating unit 67 burning, is discharged in exhaust air chamber, then carries out preheating by 3 pairs of coal supply apparatus are lower-grade metamorphic bituminous, specifically sees the introduction of above third and fourth part.

The 6th joint afterburning air heating

As Figure 26, Figure 13, Figure 11, shown in Figure 21, another air arm 6641 that another of gas reversing system 66 is connected with air blower 664 is mended pipe 632 with the air of quenching waste gas heater 63 and is connected after tubular heat exchanger 4, air blower 664 blasts air tubular heat exchanger 4, to carry out heat exchange from air arm 6641, heated air enters air and mends pipe 632, thereby give the afterburning air heating of quenching waste gas heater 63, after coal supply apparatus 3 hot waste gas be transported to the middle air that 4 pairs of tubular heat exchangers enter quenching waste gas heater 63 and heat, do not need extra thermal source to air heating, do not need to increase additional cost, both played the waste heat of the hot waste gas after preheating had further been utilized, can give in quenching waste gas heater 63 and fill into warm air again, high temperature combustible exhaust gas in quenching waste gas heater 63 is fully burnt.

The lower-grade metamorphic bituminous dehydration of the 7th joint

Hot waste gas is through to after afterburning air heating, and temperature decreases, and generally can drop to below 800 ℃, and for the relatively high hot waste gas of such temperature, a part can be used for, to lower-grade metamorphic bituminous dehydration, specifically seeing the introduction of above second, repeat no more here.

The 8th joint saturated active coke regeneration heating

Hot waste gas is through to after afterburning air heating, and temperature decreases, and generally can drop to below 800 ℃, and for the relatively high hot waste gas of such temperature, another part can be used for to saturated active coke regeneration heating.

The 6th part: pyrolysis of coal automatic control device

Comprehensively above-mentioned, pyrolysis of coal automatic control device comprises that industry control center and above introduction connect thermometer and motor with industry control center.

The 7th part: lower-grade metamorphic bituminous comprehensive utilization device

The warm pyrolysis of height that first segment is lower-grade metamorphic bituminous

The lower-grade metamorphic bituminous coal of comprehensive above-mentioned concrete introduction, charing, burnt upgrading, dryly put out, the content such as raw gas derivation draws a kind of lower-grade metamorphic bituminous coal heat decomposition stove and pyrolysis of coal method.

As shown in figure 25, a kind of lower-grade metamorphic bituminous coal heat decomposition stove 9, comprise body of heater 91, coal supply apparatus 3, pyrolysis of coal carbonizing apparatus 6, burnt modifying apparatus 610, dry coke quenching auxiliary 7, raw gas take-up gear 8, wherein, pyrolysis of coal carbonizing apparatus 6 mainly comprises that coking chamber 61, outer gas-operated thermal bath facility 64, internal combustion heating unit 67, quirk bow 65 form.

The concrete structure of described coal supply apparatus 3 is shown in third part introduction, the concrete structure of described pyrolysis of coal carbonizing apparatus 6 and coking chamber 61 thereof, outer gas-operated thermal bath facility 64, internal combustion heating unit 67, quirk bow 65 is shown in the 4th part introduction, and the concrete structure of raw gas take-up gear 8 is shown in the 5th part chapter 1 first segment content.

A lower-grade metamorphic bituminous pyrolysis of coal method, step is:

(1), lower-grade metamorphic bituminous after the dehydration in the coal bunker of hot waste gas dewatering unit 1 14 joined to adding in coal bunker 31 of coal supply apparatus 3 by existing transfer roller 15 (enclosed belt conveyer or bucket are carried transfer roller);

(2), hot waste gas after burning is entered from hot waste gas admission passage 3911, by heating by the exhaust gases passage 392, entering waste gas assembles in circuit 395, can carry out heat transmission to the skin of the primary heater unit 39 between two preheating chambers 394, thereby to falling into the lower-grade metamorphic bituminous heating preheating of coal preheating channel 3931, the lower-grade metamorphic bituminous steam giving out of heating preheating upwards enters and adds in coal bunker 31, from add the steam outlet orifice 321 of coal bunker 31 surroundings, discharge again, simultaneously to lower-grade metamorphic bituminous heating preheating, water evaporation can be lowered the temperature to the hot waste gas of discharging after burning from exhaust air chamber 391 again, finally from waste gas, assemble waste gas primary outlet 3951 discharges of circuit 395,

(3), through the lower-grade metamorphic bituminous conduct of heating preheating, enter stove coal, by intermediate bin, regulate coal bunker 33 and blanking road 34 to enter in the coking chamber 61 of coal heat decomposition stove 9 and heat high temperature pyrolysis charing;

(4) lower-grade metamorphic bituminous the becoming " smokeless char " that, high temperature pyrolysis completes directly drops in burnt modifying apparatus 610 and carries out burnt upgrading;

(5), directly drop into the gas cigarette charcoal in dry coke quenching auxiliary 7 after using low temperature waste gas after burning to complete upgrading " carry out the dry cooling of putting out, produce the flammable hot waste gas of high temperature simultaneously;

(6), the dry bottom opening 721 that puts out " smokeless char " the last low temperature coke quencher 72 from dry coke quenching auxiliary 7 after cooling is discharged.

The raw gas that wherein in (3) step, heating means produce the lower-grade metamorphic bituminous high temperature pyrolysis in pyrolysis of coal carbonizing apparatus 6 is derived, utilize the purified gas of raw gas after recovery of chemical products purifies to carry again burning to provide required heat and temperature to lower-grade metamorphic bituminous high temperature pyrolysis, comprise the purified gas burning heating method in outer combustion gas heating means and internal combustion heating means, described outer combustion gas heating means and internal combustion heating means are specifically shown in the introduction in the 4th part the first chapters and sections.

The comprehensive utilization device that second section is lower-grade metamorphic bituminous

The lower-grade metamorphic bituminous dehydration of comprehensive above-mentioned concrete introduction, coal, charing, burnt upgrading, dryly put out, the content such as raw gas derivation draws a kind of lower-grade metamorphic bituminous comprehensive utilization device and method.

As shown in Figure 25, Figure 26, Figure 10, a kind of lower-grade metamorphic bituminous comprehensive utilization device, comprise hot waste gas dewatering unit 1, coal heat decomposition stove 9, transfer roller 15, hot waste gas connecting tube 17, concrete structure and annexation see above second, third, the 4th, the 5th, the introduction of the 7th part, here repeat no more, here introduce the annexation between them, what transfer roller 15 was connected to lower coal bunker 14 bottoms of hot waste gas dewatering unit 1 and coal supply apparatus 3 adds coal bunker 31 tops; Described hot waste gas connecting tube 17 is communicated with the waste gas primary outlet 3951 of the primary heater unit in coal supply apparatus 3 39 with the hot waste gas admission passage 131 of waste gas heat exchange water trap 13 in hot waste gas dewatering unit 1.

Here introduce a kind of lower-grade metamorphic bituminous method of comprehensive utilization, step is:

(1), lower-grade metamorphic bituminous after the dehydration in the lower coal bunker 14 of hot waste gas dewatering unit 1 joined to adding in coal bunker 31 of coal supply apparatus 3 by existing transfer roller 15 (enclosed belt conveyer or bucket are carried transfer roller);

(2), hot waste gas after burning is entered from hot waste gas admission passage 3911, by heating by the exhaust gases passage 392, entering waste gas assembles in circuit 395, can carry out heat transmission to the preheating skin 3933 of the preheater 393 between two preheating chambers 394, thereby to falling into the lower-grade metamorphic bituminous heating preheating of coal preheating channel 3931, the lower-grade metamorphic bituminous steam giving out of heating preheating upwards enters and adds in coal bunker 31, from add the steam outlet orifice 321 of coal bunker 31 surroundings, discharge again, simultaneously to lower-grade metamorphic bituminous heating preheating, water evaporation can be lowered the temperature to the hot waste gas of discharging after burning from exhaust air chamber 391 again, finally from waste gas, assemble waste gas primary outlet 3951 discharges of circuit 395,

(3), through the lower-grade metamorphic bituminous conduct of heating preheating, enter stove coal, by intermediate bin, regulate coal bunker 33 and blanking road 34 to enter in the coking chamber 61 of coal heat decomposition stove 9 and heat high temperature pyrolysis charing;

(4) lower-grade metamorphic bituminous the becoming " smokeless char " that, high temperature pyrolysis completes directly drops in burnt modifying apparatus 610 and carries out burnt upgrading;

(5), " smokeless char " that directly drop in dry coke quenching auxiliary 7 after using low temperature waste gas focusing upgrading after burning to complete carry out the dry cooling of putting out, and produces the flammable hot waste gas of high temperature simultaneously;

(6), the dry bottom opening 721 that puts out " smokeless char " the last low temperature coke quencher 72 from dry coke quenching auxiliary 7 after cooling is discharged;

(7), the deriving from coking chamber 61 by raw gas take-up gear 8 by the raw gas that in (3) step, lower-grade metamorphic bituminous high temperature pyrolysis charing produces, raw gas becomes purified gas after condensation recovery of chemical products purifies, purified gas after purifying is sent into the first combustion heater 62 of outer gas-operated thermal bath facility 64 by the gas fan 665 of gas reversing system 66, the 3rd combustion heater 68 of the second combustion heater 60 and internal combustion heating unit 67, in the 4th combustion heater 69, burn, waste gas after burning becomes the relatively low low temperature waste gas of temperature and discharges by the exhaust gas fan 666 of gas reversing system 66 after regenerative heat exchange,

(8), the purified gas burning in (7) step is discharged to low temperature waste gas by exhaust gas fan 666 and introduce quenching exhaust gas fan 75, be blown in low temperature coke quencher 72, upwards seal in again high temperature coke quencher 71, high temperature coke quencher " smokeless char " of 71 neutralizations from the 71Luo Xiang of high temperature coke quencher low temperature coke quencher 72 carried out to the dry cooling of putting out, realize with above-mentioned (5) step;

(9), utilize in (8) step " smokeless char " that at the dry flammable hot waste gas of high temperature producing in putting out process, first by 610 pairs of high temperature pyrolysis of burnt modifying apparatus, complete to carry out upgrading, realize with above-mentioned (4) step;

(10), the gas firing that covers of the quenching waste gas heater 63 by internal combustion heating unit 67 by the flammable hot waste gas of high temperature after burnt upgrading in (9) step, thereby the hot waste gas exhaust channel 6306 by the hot waste gas after tonifying Qi burning by quenching waste gas heater 63 enters in the hot waste gas admission passage 3911 of the primary heater unit 39 in coal supply apparatus 3 and enters exhaust air chamber 391, realizes above-mentioned (2) step;

(11), by above-mentioned (2) step, from waste gas primary outlet 3951 discharge hot waste gass, the hot waste gas admission passage 131 by corresponding hot waste gas connecting tube 17 and hot waste gas dewatering unit 1 passes into hot waste gas surge chamber 132, by radiating pipe, be connected in series passage 134 again and flow into lower-grade metamorphic bituminous the carry out dewatered drying large to water content in radiating pipe 133, hot waste gas reduces through heat-exchange temperature simultaneously, and last Low Temperature Thermal waste gas is discharged from low temperature waste gas exhaust channel 136 by waste gas transition passage 135;

(12), lower-grade metamorphic bituminous in the cavity of housing 11 during through radiating pipe 133 heated baking, water in lower-grade metamorphic bituminous will evaporate in a large number, water vapor will enter water vapor outlet orifice 121 from the top of the cavity 111 of housing 11, flowing into water vapor hole gangs up in pipeline 122 again, the water vapor of high temperature is ganged up pipeline 122 and is upwards sealed in water vapor conduit 123 and pool together discharge from water vapor hole, the be cooled water vapor of cooling of some becomes and from water vapor hole, gangs up pipeline 122 after water of condensation and flow into condensation water collection pipeline 124 and pool together discharge downwards;

(13), the lower-grade metamorphic bituminous lower coal bunker 14 that finally falls into housing 11 bottoms after dehydrating, by transfer roller 15, constantly the lower-grade metamorphic bituminous coal supply apparatus 3 of delivering to dehydrating in lower coal bunker 14 is added in coal bunker 31, with this along connecing above-mentioned (1) step;

(14), use an enclosed belt conveyer 10 by the large lower-grade metamorphic bituminous cavity 111 that enters into housing 11 from coal inlet 112 of water content, realize lower-grade metamorphic bituminous in hot waste gas dewatering unit 1 constantly supplemented.

Comprehensively above-mentioned, lower-grade metamorphic bituminous comprehensive utilization device and method that this example is introduced, lower-grade metamorphic bituminous continuous dehydration and high temperature pyrolysis that realization is large to water content, and the waste gas of the purified gas after utilizing raw gas recovery of chemical products that low rotten cigarette self high temperature pyrolysis produces to purify after burning and burn dewaters, do not need to consume the external energy, can provide to the blast furnace of Iron And Steel Industry or power plant " smokeless char " of high-quality, " the smokeless char of the by-product of raw gas purification or the use that gasifies is provided can to again other coalification industry, having reached the large lower-grade metamorphic bituminous utilization to water content maximizes.

Claims (1)

1. a lower-grade metamorphic bituminous method of comprehensive utilization, it is characterized in that: the related equipment of present method comprises hot waste gas dewatering unit, coal heat decomposition stove, transfer roller, hot waste gas connecting tube, described coal heat decomposition stove mainly comprises coal supply apparatus, pyrolysis of coal carbonizing apparatus, burnt modifying apparatus, dry coke quenching auxiliary, raw gas take-up gear, and step is:

(1), will by existing transfer roller, deliver to coal supply apparatus through lower-grade metamorphic bituminous after hot waste gas dewatering unit dehydration;

(2), the hot waste gas after burning is passed into and in coal supply apparatus, carries out preheating;

(3), the lower-grade metamorphic bituminous stove coal that enters as pyrolysis of coal carbonizing apparatus through heating preheating heats high temperature pyrolysis charing;

(4) lower-grade metamorphic bituminous the becoming " smokeless char " that, high temperature pyrolysis completes directly drops into and in burnt modifying apparatus, carries out burnt upgrading;

(5), " smokeless char " that directly drop in dry coke quenching auxiliary after using low temperature waste gas focusing upgrading after burning to complete carry out the dry cooling of putting out, and produces the flammable hot waste gas of high temperature simultaneously;

(6), dry " smokeless char " putting out after cooling finally discharged from dry coke quenching auxiliary;

(7), the raw gas that in (3) step, lower-grade metamorphic bituminous high temperature pyrolysis charing produces is derived by raw gas take-up gear, raw gas becomes purified gas after condensation recovery of chemical products purifies, purified gas after purifying is sent into by the gas fan of gas reversing system in the 3rd combustion heater, the 4th combustion heater of the first combustion heater, the second combustion heater and the internal combustion heating unit of the outer gas-operated thermal bath facility of pyrolysis of coal carbonizing apparatus and burnt, the waste gas after burning becomes the relatively low low temperature waste gas of temperature and discharges after regenerative heat exchange;

(8), waste gas after the purified gas burning in (7) step is passed in dry coke quenching auxiliary, " smokeless char " carried out to the dry cooling of putting out, realize with above-mentioned (5) step;

(9), utilize in (8) step " smokeless char " that at the dry flammable hot waste gas of high temperature producing in putting out process, first by burnt modifying apparatus, high temperature pyrolysis completed to carry out upgrading, realize with above-mentioned (4) step;

(10), the gas firing that covers of the quenching waste gas heater by the internal combustion heating unit of pyrolysis of coal carbonizing apparatus by the flammable hot waste gas of high temperature after burnt upgrading in (9) step, hot waste gas exhaust channel by the hot waste gas after tonifying Qi burning by quenching waste gas heater enters in coal supply apparatus lower-grade metamorphic bituminous after dehydration is carried out to preheating, realizes above-mentioned (2) step;

(11), by discharging hot waste gas in above-mentioned (2) step, by corresponding hot waste gas connecting tube, pass into hot waste gas dewatering unit, lower-grade metamorphic bituminous the carry out dewatered drying large to water content, hot waste gas discharge after heat-exchange temperature reduces simultaneously;

(12), lower-grade metamorphic bituminously in hot waste gas dewatering unit, be heated when dehydration, the water in lower-grade metamorphic bituminous is evaporated and becomes steam and discharge;

(13) lower-grade metamorphic bituminous, after dehydrating is constantly sent in coal supply apparatus by transfer roller, with this along connecing above-mentioned (1) step;

(14), by large lower-grade metamorphic bituminous being transported in hot waste gas dewatering unit of water content, to give, in hot waste gas dewatering unit, constantly supplement large lower-grade metamorphic bituminous of new water content.

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