CN202953980U - Wild coal gas condensing device of coal pyrolysis furnace - Google Patents

Abstract

The utility model discloses a wild coal gas condensing device of a coal pyrolysis furnace. The wild coal gas condensing device of the coal pyrolysis furnace comprises a wild condensing shell body, an adjustment wheel sealing cover, a thread adjustment lever, a water-sealed valve cover, a water-sealed valve seat, a gas collection pipe and an ammonia water nozzle, wherein the condensing shell body is in a long barrel shape, a wild gas inlet is formed in the upper portion of the side wall of the condensing shell body, the ammonia water nozzle is arranged at the neck portion of the condensing shell body, one end of the thread adjustment lever extends out of a neck portion through hole of the condensing shell body and is connected with an adjustment wheel in a threaded mode, the sealing cover is arranged on the thread adjustment lever in a sleeved mode and fixed on the condensing shell body, the other end of the thread adjustment lever is fixedly connected with the water-sealed valve cover, the water-sealed valve seat is arranged at the middle lower portion in the condensing shell body and divides the condensing shell body into an upper portion and a lower portion, a segment of an opening bottleneck which is in a barrel shape protrudes upward in the middle of the water-sealed valve seat, the water-sealed valve cover is reversely covered on the opening bottleneck, and the gas collection pipe is arranged at the bottom of the condensing shell body. The wild coal gas condensing device of the coal pyrolysis furnace can control the pressure of the wild coal gas of a wild coal gas centralized room and play an auxiliary role in control of the coal pyrolysis of a carbonization chamber.

Description

A kind of raw gas condensing works of coal heat decomposition stove

Technical field

The utility model relates to a kind of condensing works, particularly a kind of raw gas condensing works of coal heat decomposition stove.

Background technology

Coal heat decomposition stove in the market (pit kiln) mostly adopts intermittent type coking, enter the stove coal proportioning, dewater, advance coal, preheating, charing, burnt upgrading, dried each processing step such as put out is relatively independent, can not produce continuously, production efficiency is low; In addition, the raw gas that produces in the pyrolysis of coal process contains a lot of useful compositions, as H ₂S, HCH etc. sour gas, NH ₃The organism such as alkaline gas, tar class, benzene class, naphthalene class, washing oil class do not have the complete complete technique that raw gas derivation, reclaiming clean are used.

This impel the inventor to explore to create the complete Continuous coking of a cover and to raw gas derive, the reclaiming clean complete technique of recycle in addition.

Summary of the invention

The utility model provides a kind of raw gas condensing works of coal heat decomposition stove, and this condensing works can be controlled the raw gas pressure of raw gas concentration chamber, and booster action is played in the pyrolysis of coal process control of coking chamber.

Realize that the technical scheme that above-mentioned purpose is taked is:

A kind of raw gas condensing works of coal heat decomposition stove comprises waste condensation housing, regulating wheel sealing cover, threaded adjusting bar, water seal valve gap, water seal valve seat, effuser, ammoniacal liquor shower nozzle; The condensation housing is long barrel shape, its side wall upper part offers the raw gas admission port, the ammoniacal liquor shower nozzle is arranged on the top of condensation housing, threaded adjusting bar one end stretches out and the regulating wheel thread connection from the top through hole of condensation housing, sealing cover is nested with and is fixed on the condensation housing on the threaded adjusting bar, the threaded adjusting bar the other end and water seal valve gap are connected to a fixed, the water seal valve seat is arranged in the condensation housing middle and lower part and divides two ones of up and down with the condensation housing, the water seal valve seat middle part one section barrel-shaped opening bottleneck that raises up, the water seal valve gap tips upside down on the opening bottleneck; Effuser is arranged on the condensation housing bottom.

Preferably, described regulating wheel is manual.

Preferably, described regulating wheel is the automatic regulating wheel with stepper-motor, and automatically regulating wheel is connected with the industry control central electrical, the industry control center to regulating wheel rotation automatically control.

constructional feature of the present utility model is to discharge from the raw gas export mouth when the raw gas of common 600 ℃～650 ℃ to enter the condensation housing by the raw gas admission port, run into raw gas that the ammoniacal liquor of ammoniacal liquor shower nozzle ejection lowered the temperature together with the mixed solution of coal tar and ammoniacal liquor, enter the condensation lower housing portion from flowing through between water seal valve gap and barrel-shaped opening bottleneck, carry by effuser at last and carry out follow-up purification recovery, this example moves up and down by the rotation drive threaded adjusting bar of regulating wheel, thereby drive the degree of depth of water-sealed valve cover buckle on the opening bottleneck and play the raw gas pressure of controlling the raw gas concentration chamber, booster action is played in pyrolysis of coal process control to coking chamber.

Description of drawings

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

Fig. 1 is F place enlarged view in Fig. 4;

Fig. 2 is w-w place schematic cross-section in Fig. 5;

Fig. 3 is the electrical connection schematic diagram at the industry control center of the related coal heat decomposition stove of the utility model;

Fig. 4 is the utility model continuous coking apapratus general illustration in coal heat decomposition stove;

Fig. 5 is the raw gas take-up gear assembling schematic diagram (in Fig. 4 G place enlarged view) of the raw gas condensing works of the utility model coal heat decomposition stove and coal heat decomposition stove;

Fig. 6 is the raw gas condensing works schematic diagram of the utility model coal heat decomposition stove;

Fig. 7 is the related afterburning air heating apparatus schematic diagram of the utility model;

Fig. 8 is d-d schematic cross-section in Fig. 7;

Fig. 9 is activated coke dry method withdrawer, activated coke bucket elevator, activated coke revivifier, cut tower, the oil gas air cooler assembling schematic diagram of the related raw gas reclaiming clean device of the utility model;

Figure 10 is cut tower, the oil gas air cooler assembling schematic diagram of the related raw gas reclaiming clean device of the utility model;

Figure 11 is gas-liquid separator, air cooler, the gas fan group assembling schematic diagram of the related raw gas reclaiming clean device of the utility model.

Embodiment

The specific embodiment of the raw gas condensing works of a kind of coal heat decomposition stove of the utility model is mainly introduced in following the 5th part chapter 1 second section in detail.

First is divided into stove coal proportioning and preparation

A kind of coal heat decomposition stove that the utility model is related can enter stove coal proportioning according to different, obtains the different coke of grade.

Following steps: 1) select 5 kinds of different coals, they are respectively bottle coal, rich coal, coking coal, 1/3rd coking coal, lean coal.2) bottle coal 20%～40% wherein; Rich coal 10%～20%; Coking coal 10%～20%; / 3rd coking coal 15%～30%; Lean coal 10%～15%, first mix the fragmentation of then sieving, until reaching, crushed particles is formed into the stove coal below 5mm, certainly the utility model coal heat decomposition stove to other proportioning and granular size to enter the stove coal applicable equally, do not consist of the required restriction that enters the stove coal dust of the utility model coal heat decomposition stove, just by above entering stove coal proportioning and can reaching more than 40% the weakly caking coal amount of allocating into of lifting, reduced the cost that enters the stove coal and can obtain the coke of better quality again simultaneously, had fine competitive power on market.

Second section enters the stove coal dewatering

Pit kiln in the market mostly adopts intermittent type coking, enters the stove coal charge and is wet coal, so power consumption has increased the cost of coking, enters dewatering of stove coal by entering stove coal dewatering device to what enter this coal heat decomposition stove in advance, plays energy-saving and cost-reducing effect.

Third part enters the stove coal and advances coal, preheating, adjusting, cooling

Entering the stove coal and generally can be down to normal temperature through temperature after carrying after dehydration, particularly winter temperature is lower, temperature may be lower, but but wish during coking to enter stove coal temperature remain between 200C to 300 ℃ more suitable, so need to carry out preheating, adjusting, cooling before entering the coking chamber of coal heat decomposition stove to entering the stove coal.

First segment enters the stove coal and advances coal

Advancing device for coal is used for inputting and enters the stove coal after dehydration

Second section enters the preheating of stove coal

Primary heater unit is arranged at into the below of device for coal and is positioned at the top of coal heat decomposition stove.Primary heater unit enters the stove coal with preheating to what reduce through temperature after carrying.

The stove coal that enters after the 3rd joint preheating is regulated

Enter stove coal surge bunker and be arranged on upper of furnace body and be positioned at the primary heater unit bottom, enter stove coal surge bunker and be used for regulating in the coking chamber of coal heat decomposition stove and add the amount of injecting the stove coal.

The 4th part enters stove pyrolysis of coal (charing heating, burnt upgrading, dry coke quenching)

First segment enters stove pyrolysis of coal charing heating

Enter to be heated in the coking chamber that the stove coal enters coal heat decomposition stove and carry out pyrolysis charring, the purified gas that the raw gas that produces in profit pyrolysis of coal process carries out after reclaiming clean carries out combustion heating, and utilizes the waste gas after burning to carry out the dried generation high-temperature combustible gas body combustion heating again that puts out.

The burnt upgrading of second section

carry out the coke that pyrolysis forms afterwards in coking chamber due to coal, the existence inequality of being heated, the situation that coke briquette grain size is irregular, preferably provide certain temperature and time to coke, make between coke and fully contact, mutually carry out heat transmission, this just need to carry out burnt upgrading, 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 that has particularly just entered just is fit to burnt upgrading between 1000 ℃～1100 ℃, make coke retain certain hour in burnt upgrading chamber, fully contact between the coke briquette grain, carry out each other heat transmission, reach evenly purpose of coke button size.

The 3rd joint quirk bow

The laying of various pipes when providing support, is provided to the internal combustion heating unit again in the effect of quirk bow.

The 4th joint dry coke quenching

Higher through the coke temperature after upgrading, generally all at 1000 ℃～1100 ℃, need to carry out cooling could the convenience to high temperature coke and carry and store, need to carry out dried putting out.

The 5th joint continuous coking apapratus

Comprehensively above-mentioned, the characteristics of this routine Continuous coking are, with pyrolysis of coal charing, upgrading, the dried process integration that puts out in the hot body of heater of same coal, make charing, upgrading, dried putting out be able to continuous realization, overcome the discontinuous production efficiency of existing intermittent type coking technology technique low, how required the assorted plant area of equipment be large, the problem that human cost is high.

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

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

First segment raw gas take-up gear

The raw gas that produces in the pyrolysis of coal process contains a lot of useful compositions, as H ₂S, HCH etc. sour gas, NH ₃The organism such as alkaline gas, tar class, benzene class, naphthalene class, washing oil class need to be derived in order to utilize raw gas.

As Fig. 5, raw gas take-up gear 8 comprises raw gas concentration chamber 81, interior derivation passage 82, outer derivation passage 83, derives main channel 84, derives 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 Fig. 2, shown in Figure 5, interior derivation passage 82 arranges in quirk partition wall 635, and interior derivation feeder connection 821 passes interior ringwall 612 middle parts and leads to coking chamber 61, and interior derivation channel outlet 822 is passed the raw gas concentration chamber 81 that interior ringwall 612 leads to the coking chamber top; As Fig. 2, Fig. 5, shown in Figure 1, 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 pass outer ring wall 613 middle parts and lead to coking chamber 61, and outer derivation channel outlet 832 is passed the raw gas concentration chamber 81 that outer ring wall 613 leads to the coking chamber top.

As shown in Figure 5, 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 Fig. 5, Fig. 2, shown in Figure 1, in this example because coking chamber 61 annular chamber, so raw gas concentration chamber 81 is corresponding annular chamber also, article 6, deriving passage 82 in is separately positioned in 6 road quirk partition walls 635, pass interior ringwall 612 and lead to coking chamber 61, article 6, the outer passage 83 of deriving is separately positioned on to pass with outer quirk partition wall 625 and outer ring wall 613 in the middle of body of heater 91 exterior walls and leads to coking chamber 61, wherein, because the circumference of coking chamber 61, so interior ringwall 612 at coking chamber 61, be respectively arranged with a plurality of interior derivation feeder connections 821 and lower outside derivation feeder connection 831 on outer ring wall 613, 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 Fig. 5, interior derivation feeder connection 821 shown in Figure 1 is 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 different sections in coking chamber 91 produce, also being provided with 4 the larger raw gas of sectional area main channels 84 around raw gas concentration chamber 81 in addition leads to and derives circuit 85, the purpose that arranges like this can conveniently derive a large amount of raw gas in raw gas concentration chamber 81.

As shown in Figure 5, be provided with the raw gas temperature monitoring holes 811 that leads to raw gas concentration chamber 81 on the exterior wall of body of heater 91, place raw gas temperature table 812 in raw gas temperature monitoring holes 811.

As shown in Figure 3, 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.

The raw gas that will be in the coking chamber 61 different sections of these routine characteristics produce enters interior derivation passage 82 and outer derivation passage from interior derivation feeder connection 821 and lower outside derivation feeder connection 831, upper outside derivation feeder connection 834 respectively and collects in raw gas concentration chamber 81 going out 83 again, 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, discharge from raw gas export mouth 851 at last.

Second section raw gas condensing works

As shown in Figure 5, higher from raw gas export mouth 851 discharge raw gas temperatures,, need to use 86 pairs of high temperature raw gas of raw gas condensing works and carry out cooling changing antenatal the conveying for the ease of the high temperature raw gas.

As shown in Figure 6, raw gas condensing works 86 comprises, condensation housing 861, regulating wheel 862, sealing cover 860, threaded adjusting bar 863, water seal valve gap 864, water seal valve seat 865, effuser 867, ammoniacal liquor shower nozzle 868; Condensation housing 861 is long barrel shape, its side wall upper part offers raw gas admission port 869, ammoniacal liquor shower nozzle 868 is arranged on the top of condensation housing 861, threaded adjusting bar 863 1 ends stretch out and regulating wheel 862 thread connection from the top through hole 8611 of condensation housing 861, sealing cover 860 is nested with and is fixed on condensation housing 861 on threaded adjusting bar 863, be used for shutoff top through hole 8611, prevent that raw gas from releasing from top through hole 8611; Threaded adjusting bar 863 the other ends and water seal valve gap 864 are connected to a fixed, water seal valve seat 865 is arranged on condensation housing 861 interior middle and lower part with two ones of condensation housing 861 minutes up and down, the water seal valve seat 865 middle parts one section barrel-shaped opening bottleneck 8651 that raises up, water seal valve gap 864 tips upside down on opening bottleneck 8651; Effuser 867 is arranged on condensation housing 861 bottoms.

In addition, regulating wheel 862 can manual adjustment wheel, can also be the automatic regulating wheel with stepper-motor, and 90 pairs, industry control center regulating wheel 862 rotates and automatically controls as shown in Figure 3.

these routine characteristics are: when the raw gas of common 600 ℃～650 ℃ enter condensation housing 861 by raw gas admission port 869 from 851 discharges of raw gas export mouth, run into raw gas that the ammoniacal liquor of ammoniacal liquor shower nozzle 868 ejection lowered the temperature together with the mixed solution of coal tar and ammoniacal liquor, enter condensation housing 861 bottoms from flowing through between water seal valve gap 864 and barrel-shaped opening bottleneck 8651, carry by effuser 867 at last and carry out follow-up purification recovery, this example moves up and down by the rotation drive threaded adjusting bar 863 of regulating wheel 862, thereby the degree of depth that drive water seal valve gap 864 is buckled on opening bottleneck 8651 plays the raw gas pressure of controlling raw gas concentration chamber 81, booster action is played in pyrolysis of coal process control to coking chamber 61.

Comprehensive above first and second joint is described, and a kind of raw gas of coal heat decomposition stove is derived the condensation autocontrol method, and present method relates generally to and comprises raw gas take-up gear 8, raw gas condensing works 86, industry control center 90, and the step of present method realization is:

(1), by raw gas take-up gear 8, the raw gas that pyrolysis of coal in coking chamber 61 produces is derived;

(2), the raw gas of deriving is passed into raw gas condensing works 8 and carry out ammoniacal liquor sprinkling cooling formation raw gas together with the mixed solution of coal tar and ammoniacal liquor;

(3), automatically regulate the regulating wheels of raw gas condensing workss by industry control center 90, thereby regulate raw gas together with the circulation realization of the mixed solution of coal tar and the ammoniacal liquor pressure-controlling to the raw gas in coking chamber 60, play the automatic control to the pyrolysis of coal process.

The reclaiming clean of the 3rd joint raw gas

Raw gas after ammoniacal liquor 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, contain multiple useful organic component such as carbolic oil, naphtalene oil, washing oil, carbolineum etc. in mixed solution after gas-liquid separation and be used for other auxiliary product of industry refinement, coal gas after gas-liquid separation is after the air cooling cooling, become purified gas after the dry back receiving apparatus purifies recovery, purified gas can store for burning.

As Figure 11, Fig. 9, shown in Figure 10, raw gas reclaiming clean device 4 comprises gas-liquid separator 42, air cooler 43, gas fan group 44, activated coke dry method withdrawer 45, activated coke bucket elevator 46, activated coke revivifier 47, cut tower 48, oil gas air cooler 49.

as Figure 11, shown in Figure 9, raw gas and coal tar and ammonia water mixture enter respectively in two branch roads through gas-liquid separation, raw gas upwards leads to air cooler 43 through one road heating gas transfer lime 412, coal tar and ammonia water mixture lead to coal tar ammonia precipitation process groove 42 downwards through another road mixed solution pipe 413, and coal tar ammonia precipitation process groove 42 separates coal tar with ammonia precipitation process, air cooler 43 comprises air cooling housing 431, coal gas cooling pipe network (figure does not look out), the inner formation air cooling of air cooling housing 431 chamber, coal gas cooling pipe network (figure do not look out) forms independent loop and is placed in the air cooling chamber, coal gas cooling pipe network entrance links with heating gas transfer lime 412 by the first air cooling gate valve 432, coal gas cooling pipe network outlet 433 also is provided with the second air cooling gate valve 434, gas fan group 44 links by the first air cooling gas conveying tube 414 and the second air cooling gate valve 434, activated coke dry method withdrawer 45 communicates with gas fan group 44 by the second air cooling gas conveying tube 415.

As shown in Figure 9, activated coke dry method withdrawer 45 comprises that recycling shell collector 453, absorption storehouse 458, unsaturated activated coke enter storehouse 454, saturated active coke storage silo 456, recycling shell collector 453 is a cavity container, recycling shell collector 453 top purified gas output tubes 416, recycling shell collector 453 bottoms and the second gas conveying tube 415 link; Absorption storehouse 458 is arranged in sky recycling shell collector 453 between purified gas output tube 416 and the second gas conveying tube 415, top 4581, the bottom 4582 in absorption storehouse 458 are the filtration net structure, absorption top, storehouse 4581 enters storehouse 454 with the unsaturated activated coke that is arranged on recycling shell collector 453 tops and links, and absorption top, storehouse 4581 enters with unsaturated activated coke the first recovery gate valve 455 is set between storehouse 454; Absorption storehouse bottom 4582 be arranged on recycling shell collector 453 bottoms with saturated active coke storage silo 456 links, be provided with the second recovery gate valve 457 between bottom 4582, absorption storehouse and saturated active coke storage silo 456.

As shown in Figure 9, activated coke revivifier 47 comprises revivifier housing 471, hot waste gas evaporation pipe network 472, unsaturated activated coke recovery bin 476, revivifier housing 471 is a cavity container, revivifier housing 471 tops are provided with saturated active coke and enter gate valve 475, the bottom is provided with unsaturated activated coke discharging gate valve 474, unsaturated activated coke discharging gate valve 474 belows are provided with unsaturated activated coke recovery bin 476, also are provided with evaporation exhaust of oil pipe 473 on revivifier housing 471; 472 one-tenth independent loops of waste gas evaporation pipe network are arranged in revivifier housing 471 chambeies, the bottom of waste gas evaporation pipe network 472 is provided with hot waste gas and enters pipe 477, the top is provided with hot waste gas delivery pipe 479, in order to increase hot waste gas at the flow velocity of waste gas evaporation pipe network 472, be provided with waste gas circulation pipeline 478 at waste gas evaporation pipe network 472 middle parts, waste gas circulation pipeline 478 stretch out revivifier housing 471 outer and hot waste gas blower fan (figure does not look out) link.

As shown in Figure 9, activated coke bucket elevator 46 comprises saturated active coke bucket elevator 461, unsaturated activated coke bucket elevator 462, saturated active coke bucket elevator 461 1 ends are arranged in the saturated active coke storage silo 456 of activated coke dry method withdrawer 45 belows, and the saturated active coke that the other end leads to activated coke revivifier 47 tops enters gate valve 475; Unsaturated activated coke bucket elevator 462 1 ends are arranged in unsaturated activated coke recovery bin 476, and the unsaturated activated coke that the other end leads to activated coke dry method withdrawer 45 enters in storehouse 454.

as shown in figure 10, cut tower 48 comprises cut tower shell 481, crude benzol return channel 482, cut net 483, mixed triolein oil trap 484, carbolineum medial launder 485, cut tower shell 481 is a cavity container, the top of cut tower shell 481 is provided with light oil crude benzene vapor vent pipe 417, and cut tower shell 481 bottoms are carbolineum medial launder 485, cut net 483 is arranged in cut tower shell 481 and is positioned at the top of carbolineum medial launder 485, cut net 483 comprises lower cut net 4831, middle cut net 4832, upper cut net 4833, wherein descend cut net 4831, middle cut net 4832, upper cut net 4833 is disposed in cut tower shell 481 successively from top to bottom, lower cut net 4831, between middle cut net 4832, the evaporation exhaust of oil pipe 473 of cavity and activated coke revivifier 47 links, middle cut net 4832, upper cut net 4833 is provided with mixed triolein oil trap 484, between the top of upper cut net 4833 and cut tower shell 481, crude benzol return channel 482 is set.

As shown in figure 10, carbolineum medial launder 485 is mainly used to deposit carbolineum, and it is the common cooling structure of an industry (referring to the structrual description of following mixed triolein water cooler 487) that carbolineum medial launder 485 connects a carbolineum water cooler 486 with circulation pipe network.

as shown in figure 10, mixed triolein oil trap 484 comprises oil trap dividing plate 4841, oil trap is every cap 4842, raise up a split ring along 4843 in the middle of oil trap dividing plate 4841, oil trap every cap 4842 cover put split ring along 4843 on, split ring along 4843 and cut tower shell 481 between form oil-collecting tank 4844, oil-collecting tank 4844 slot parts are provided with the mixed triolein transfer lime 418 that passes cut tower shell 481, mixed triolein transfer lime 418 communicates with mixed triolein water cooler 487, mixed triolein water cooler 487 is common cooling structure, comprise and form waterway 4872 in cooler casing 4871, contaminated product cooling pipe network 4873 forms independent loop and is placed in waterway 4872, the entrance of contaminated product cooling pipe network 4873 communicates with mixed triolein transfer lime 418, the outlet of contaminated product cooling pipe network 4873 communicates with mixed triolein medial launder 488, mixed triolein medial launder 488 is mainly used to deposit mixed triolein.

As shown in figure 10, oil gas air cooler 49 comprises air cooler support body 491, air cooler pipe network 492, air cooling blower fan 493, air cooler support body 491 upper and lower parts form respectively airtight upper chamber 497, lower chamber 498, communicate by air cooler pipe network 492 between upper chamber 497 and lower chamber 498, upper chamber 497 communicates with light oil crude benzene vapor vent pipe 417, lower chamber 498 is led in water-and-oil separator 495 and crude benzol backflash 496,495 industry common structures of water-and-oil separator repeat no more.

This routine raw gas reclaiming clean technique is,

1, raw gas and coal tar ammonia water mixture are through gas-liquid separation, raw gas upwards leads to air cooler 43 through one road heating gas transfer lime 412 and carries out coolingly, and the coal tar ammonia water mixture flows to tar ammonia settling bath 42 downwards through another road mixed solution pipe 413 and carries out precipitate and separate;

2, cooling raw gas is delivered in activated coke dry method withdrawer 45 through gas fan group 44 and is carried out charcoal absorption, saturated gac falls into saturated active coke storage silo 456, send into activated coke revivifier 47 through saturated activity charcoal bucket elevator 462 and evaporate regeneration, unsaturated activated coke after evaporation falls into unsaturated activated coke recovery bin 476, again send in activated coke dry method withdrawer 45 through unsaturated activated coke bucket elevator 46 and enter absorption, so repeatedly carry out, being transported to combustion heater through the purified gas after absorption by purified gas output tube 416 burns,

3, evaporate the light oil that contains of regeneration through activated coke revivifier 47, crude benzol, mixed triolein, the compositions such as carbolineum enter cut tower 48 at oil gas by evaporation exhaust of oil pipe 473 and carry out cut, the carbolineum that proportion is larger flows in the carbolineum medial launder by lower cut net 4833, the slightly heavy mixed triolein of proportion flows in the oil-collecting tank 4844 of mixed triolein oil trap 484, enter in mixed triolein water cooler 487 cooling by mixed triolein transfer lime 418, store at last in mixed triolein medial launder 488, the light oil that proportion is lighter and crude benzol steam enter from light oil crude benzene vapor vent pipe 417 and carry out condensation oil gas air cooler 49, phlegma enters water-and-oil separator 495 and carries out oily water separation, light oil and crude benzol solution enter in crude benzol backflash 496, wherein a part is used for returning stream, part overflow is to light oil crude benzol medial launder.

Chapter 2, the recycle after the raw gas reclaiming clean (burning, driedly put out, burnt upgrading, again burn, enter the preheating of stove coal, enter the stove coal dewatering, the tonifying Qi air heating)

The first segment raw gas purifies the purified gas burning after reclaiming

Raw gas is through after purifying recovery, the part purified gas be transported to this example above introduce enter combustion heater in the outer combustion gas heating unit described in stove pyrolysis of coal charing part and the combustion heater in the internal combustion heating unit burns, provide thermal source to pyrolysis of coal.

Dried 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 the internal combustion heating unit outside, utilizing not cmpletely, combustion exhaust carries out the dried 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 simultaneously remaining volatile combustible gases after the high temperature coke upgrading, the final high-temp waste gas that contains the 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 the 3rd dried the putting out of joint

High temperature combustible exhaust gas temperature after dried 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 the introduction of above dry coke quenching chapters and sections to repeat no more here.

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

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

Hot waste gas after the 5th joint tonifying Qi burning enters the preheating of stove coal

Waste gas after the quenching waste gas heater burning of internal combustion heating unit is discharged in exhaust air chamber, then carries out preheating by the coal primary heater unit to entering the stove coal.

The 6th joint afterburning air heating

Being transported to tubular heat exchanger through the waste gas after the preheating of coal preheater heats entering quenching waste gas heater Air, do not need extra thermal source to air heating, need not increase additional cost, both played the waste heat through the hot waste gas after the preheating of coal preheater had further been utilized, can give in the quenching waste gas heater again and fill into warm air, make that in the quenching waste gas heater, the high temperature combustible exhaust gas fully burns.

as Fig. 7, shown in Figure 8, described tubular heat exchanger 40, comprise heat exchange housing 401, metal heat-exchange pipe network 403, hot waste gas admission passage 407, heat exchange waste gas exhaust channel 404, the interior formation waste gas heat radiation of heat exchange housing 401 chamber 402, hot waste gas admission passage 407 and heat exchange waste gas exhaust channel 404 are separately positioned on heat exchange housing 401 and communicate with waste gas heat radiation chamber 402, metal heat-exchange pipe network 403 is placed in waste gas heat radiation chamber 402, metal heat-exchange pipe network 403 comprises that air enters pipe 409 and Bas Discharged pipe 408, air enters pipe 409 and Bas Discharged pipe 408 stretches out respectively heat exchange housing 401 outsides.

As Fig. 5, Fig. 7, Fig. 8, shown in Figure 4, exhaust air chamber 391 is assembled circuit 395 by heating by the exhaust gases passage 392 and waste gas and is communicated, the hot waste gas outlet 3951 that waste gas is assembled circuit 395 is connected to hot waste gas admission passage 407 by pipeline, the air airduct 6641 that air enters the air blower 664 of pipe 409 by pipeline and gas reversing system 66 links, Bas Discharged pipe 408 is mended pipe 632 with air and is linked, and heat exchange waste gas exhaust channel 404 is discharged main channel 405 with heat exchange waste gas and linked.

this routine afterburning air heating Method And Principle is: the master of internal combustion heating unit, waste gas after secondary internal-quirk burning enters exhaust air chamber 391 from the bottom admission passage 3911 of exhaust air chamber 391 successively, enter waste gas gathering circuit 395 after entering the preheating of stove coal by 392 pairs, heating by the exhaust gases passage, assemble the waste gas primary outlet 3951 of circuit 395 discharges from waste gas, the temperature of this moment is generally all 1000 ℃ of left and right, enter into waste gas heat radiation chamber 402 by hot waste gas admission passage 407 again and carry out heat exchange with metal heat-exchange pipe network 403, the waste heat that had both played hot waste gas further utilizes, can heat the afterburning air again, promote the master of internal combustion heating unit, the high temperature combustible exhaust gas of secondary internal-quirk fully burns.

The 7th joint enters the stove coal dewatering

The hot waste gas process is to after the 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 entering the stove coal dewatering.

The 8th joint saturated active coke regeneration heating

The hot waste gas process is to after the 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, as shown in Figure 3, the pyrolysis of coal automatic control device comprises that industry control center 90 and above introduction connect thermometer and motor with industry control center 90.

The pyrolysis of coal automation control method comprises entering the stove coal dewatering, enter the preheating of stove coal, entering the controls such as the adjusting of stove coal coal, the burning of outer combustion gas heating unit, the commutation of gas reversing system, the adjusting of raw gas pressure of above introduction.

The 7th part: thermal cycling continuous and automatic coal heat decomposition stove

Comprehensively above-mentioned, thermal cycling continuous and automatic coal heat decomposition stove comprise above concrete introduction enter that the stove coal advances coal, preheating, coal, cooling, charing, burnt upgrading, driedly puts out, raw gas derivation etc.

Claims (3)

1. the raw gas condensing works of a coal heat decomposition stove, is characterized in that: comprise waste condensation housing, regulating wheel sealing cover, threaded adjusting bar, water seal valve gap, water seal valve seat, effuser, ammoniacal liquor shower nozzle; The condensation housing is long barrel shape, its side wall upper part offers the raw gas admission port, the ammoniacal liquor shower nozzle is arranged on the top of condensation housing, threaded adjusting bar one end stretches out and the regulating wheel thread connection from the top through hole of condensation housing, sealing cover is nested with and is fixed on the condensation housing on the threaded adjusting bar, the threaded adjusting bar the other end and water seal valve gap are connected to a fixed, the water seal valve seat is arranged in the condensation housing middle and lower part and divides two ones of up and down with the condensation housing, the water seal valve seat middle part one section barrel-shaped opening bottleneck that raises up, the water seal valve gap tips upside down on the opening bottleneck; Effuser is arranged on the condensation housing bottom.

2. the raw gas condensing works of a kind of coal heat decomposition stove according to claim 1, it is characterized in that: described regulating wheel is manual adjustment wheel.

3. the raw gas condensing works of a kind of coal heat decomposition stove according to claim 1, it is characterized in that: described regulating wheel is the automatic regulating wheel with stepper-motor, automatically regulating wheel is connected with the industry control central electrical, the industry control center to regulating wheel rotation automatically control.

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