CN103756689B - Coke oven capable of horizontally heating in reciprocating manner and vertically extracting coke - Google Patents
Coke oven capable of horizontally heating in reciprocating manner and vertically extracting coke Download PDFInfo
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- CN103756689B CN103756689B CN201410043735.2A CN201410043735A CN103756689B CN 103756689 B CN103756689 B CN 103756689B CN 201410043735 A CN201410043735 A CN 201410043735A CN 103756689 B CN103756689 B CN 103756689B
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Abstract
A coke oven capable of horizontally heating in a reciprocating manner and vertically extracting coke comprises coking chambers, combustion chambers, and heat storage chambers arranged on the two sides of each of the combustion chambers, wherein an automatic oven door is arranged at the bottom of the coking chamber, a coke processing chamber internally provided with a conveyor is arranged below the coking chamber and the combustion chamber, a dry quenching furnace is arranged at the tail end of the conveyor, the combustion chamber is internally provided with a large number of horizontal flame paths separated by clapboard bricks, a lean gas/smoke port and an air/smoke port are respectively arranged at the two ends of each horizontal flame path, and each horizontal flame path in the combustion chamber is connected with the corresponding heat storage chamber. The coke oven heats quantitatively and is convenient to regulate when the gas is heated, the gas flow path is short, the gas is heated uniformly, the coke oven can automatically extract, convey and quench the coke in a closed environment at the lower part of the coke oven and utilizes the nitrogen gas to cool in a circulating manner and remove dust, therefore, the problems aiming at environmental protection and energy saving are solved fundamentally, meanwhile, oven doors on the two sides of the coke oven and a large-scale auxiliary coke oven machinery are cancelled, and the productivity is increased. As a result, the cost of the coke oven is lowered, and the operation cost is saved.
Description
Technical field
The present invention relates to the heating of a kind of transverse reciprocating, vertical coke discharging formula pit kiln, belong to the conventional coking technology field of metallurgical industry coking industry.
Background technology
Existing large-scale conventional mechanical pit kiln is all made up of coal charge carbonization system and gas heating system.In upper of furnace body, dozens of coking chamber and dozens of combustion chamber distribute alternately, and in a combustion chamber, heated air is burnt, and by furnace wall, heat is passed to coking chamber, and in coking chamber, coal charge is heated charing; In the middle part of body of heater, be dispersed with dozens of regenerator, for replacing Mist heat recovering and preheating heated air; At lower portion of furnace body, be dispersed with heat gas lines and reversing valve, stopping valve, variable valve etc., also have bottom flue, point flue, exhaust gas disc etc. simultaneously, for supply and adjustment heated air, derive flue gas.
In coal charge carbonization system, coal charger loads coking chamber coal charge by hole of coalingging at furnace roof, after a coking cycles, homonymy coking chamber fire door is opened at the pushing machine of pusher side, release the coke that charing is ripe, opening homonymy coking chamber fire door at the coke guide of coke side leads Jiao simultaneously, and quenching car meets Jiao at coke guide side-lower, and hot coke is transported to the place's quenching of stove end stand; In order to cleaner production, environmental protection and energy saving, avoid uncontrollable discharge, and also supporting construction large-scale ground negative pressure dust removing device, has dry coke quenching facility in stove end stand position.Because the material of existing large-scale conventional mechanical pit kiln coal charge carbonization system is all that enterprising side goes out, discharge of the coke in open environment, transport Jiao, the supporting construction coke oven both sides fire door so have to, pushing machine, coke guide, quenching car, ground dedusting device, dry coke quenching facility.So technical process is unreasonable, coke oven auxiliary machinery is many, and running cost is high, and investment is large.
In gas heating system, be made up of more than 30 flues in each combustion chamber of upper of furnace body, every two flues partner twinflue, one of them combustion gas flowing walking to rise, another flue gas walking to decline, and the cycle hockets; In the middle part of body of heater, have dozens of regenerator equally, heat storage is equipped with in inside, and regenerator top is connected by long and short chute with bottom of combustion chamber, and regulates flue heating gas flow by the adjusting brick of outlet; The double-edged fine-toothed comb brick distributed by its top at the horizontal bottom flue of lower portion of furnace body is connected with regenerator bottom, double-edged fine-toothed comb brick vertically becomes laterally/vertical discharged gas fume or the heated air becoming transverse direction for adjusting distribution, horizontal bottom flue is communicated with a point flue by exhaust gas disc, switches heated air and discharged gas fume by exchange board.Visible, existing pit kiln upper, middle and lower--gas heating district, heat-accumulating area, heated air and flue gas pass in and out, regulatory region, not only form complicated connection up and down, horizontal flow and adjustment relation of confluxing; The more important thing is hinder material system utilize natural gravity coke discharging.Therefore, furnace binding is unreasonable, and heating system is complicated, operational difficulty, and resistance is large.
Since this century, in order to improve production capacity and labour productivity, existing coke oven is simply towards coking chamber Gao Xianghua, wide to change, the maximized road for development of length, thus, the bilateral fire door that coking chamber is supporting and coke over machinery have to maximize, supporting ground dedusting device, dry coke quenching facility also has to maximize, the processing power of coke over machinery again limit the quantity of coke furnace carbonization chamber conversely, height and length, the pushing ram of pushing machine causes infringement to coking chamber wall again, reduce coke oven furnace life, coke oven throughput is not effectively discharged, coke oven discharges of the coke pollution, power loss is not solved at all.
Summary of the invention
The object of this invention is to provide the heating of a kind of transverse reciprocating, vertical coke discharging formula pit kiln, complicated furnace binding is vertically heated for changing existing pit kiln, change irrational technical process of laterally the discharging of the coke, reduce supporting coke oven auxiliary machinery, avoid in open environment, the discharging of the coke problem, the problem includes: problems such as pollution, energy consumption height, simplify production operation, reduce investment.
To achieve these goals, the present invention is by the following technical solutions:
Transverse reciprocating heating, vertical coke discharging formula pit kiln, comprise multiple top and be provided with the coking chamber in the hole of coalingging of band port lid, multiple combustion chamber, with the regenerator split on each both sides, combustion chamber, described coking chamber and interval, combustion chamber are arranged, and each coking chamber is forward and backward is provided with a combustion chamber;
It is characterized in that described coking chamber four sides are built by laying bricks or stones by silica brick to form, this bottom of carbonization chamber is provided with auto stove-door, is provided with airtight coke disposal room in the below of coking chamber and combustion chamber,
In coke disposal room, be positioned at below auto stove-door and be provided with two centroclinal Jiao Tai that slip, being positioned at two and slipping Jiao Tai outlet below and be provided with coke transfer roller in coke disposal room, is provided with at the end of coke transfer roller and dryly puts out stove; Described combustion chamber is built by laying bricks or stones into rectangular-shaped by silica brick;
Each combustion chamber sets up multiple horizontal quirk up and down separately, separates between each horizontal quirk by dividing plate brick, is provided with low-grade gas/flue gas port and air/smoke port respectively at the two ends of each horizontal quirk,
The each horizontal quirk of combustion chamber is connected with corresponding regenerator respectively, and described regenerator is used for the fume afterheat of combustion chamber discharge and heated air to hocket in regenerator heat exchange.
Above-mentioned coking chamber includes vertical silica brick partition wall and coking chamber is isolated into two chambers in left and right; About two airtight coke disposal rooms are side by side set in the below of coking chamber and combustion chamber, and coke disposal room, two, left and right lays respectively at immediately below coking chamber left chamber, combustion chamber left chamber and the right chamber of coking chamber, the right chamber in combustion chamber; Auto stove-door is respectively equipped with in the bottom of coking chamber two chambers,
In coke disposal room, be positioned at below auto stove-door and be provided with two centroclinal Jiao Tai that slip, being positioned at two and slipping Jiao Tai outlet below and be provided with coke transfer roller in coke disposal room, is provided with at the end of coke transfer roller and dryly puts out stove.
Each regenerator inside is separated into multiple heat exchanger channels up and down, heat exchanger channels and one_to_one corresponding identical with combustion chamber horizontal quirk quantity, each heat exchanger channels comprises horizontal low-grade gas/flue gas heat exchange subchannel and air/smoke heat exchange subchannel, in heat exchanger channels, heat storage is housed;
Low-grade gas/flue gas inner port and low-grade gas/flue gas external port is respectively equipped with at the two ends of each low-grade gas/flue gas heat exchange subchannel; Air/smoke inner port and air/smoke external port is respectively equipped with at the two ends of each air/smoke heat exchange subchannel;
Described low-grade gas/flue gas inner port level connection joint is in the low-grade gas/flue gas port of each self-corresponding combustion chamber quirk; Described air/smoke inner port level connection joint is in each self-corresponding air/smoke port;
Described low-grade gas/flue gas external port is connected with flue gas standpipe with low-grade gas standpipe with the regenerator air/smoke pipe connecting of band reversing valve respectively by the regenerator low-grade gas/flue gas pipe connecting of band reversing valve;
Described air/smoke external port is connected with flue gas standpipe with air standpipe with the regenerator air/smoke pipe connecting of band reversing valve respectively by the regenerator low-grade gas/flue gas pipe connecting of band reversing valve.
Above-mentioned horizontal quirk two ends are also respectively equipped with coke-oven gas port, and described coke-oven gas port is connected with coke-oven gas standpipe by the coke-oven gas pipe connecting of band stopping valve.
The pit kiln body of heater external surface shape that above-mentioned coking chamber and interval, combustion chamber arrange and formed is cuboid;
Wherein, the inner chamber of coking chamber is vertical section is trapezoidal structure, up-narrow and down-wide, and side direction section is rectangle; Correspondingly, the structure of the inner chamber of above-mentioned combustion chamber to be vertical section be inverted trapezoidal, wide at the top and narrow at the bottom, and side direction section is rectangle;
The upper limb of each described coking chamber inner chamber and lower edge are all higher than upper limb and the lower edge of combustion chamber, both sides inner chamber before and after it, and the lateral length of each coking chamber inner chamber is all shorter than the lateral length of combustion chamber, both sides inner chamber before and after it.
Briefly coking chamber is higher than combustion chamber, and narrower than combustion chamber.
The above-mentioned cross-sectional shape being positioned at the auto stove-door of bottom of carbonization chamber is circular arc, and the below of circular arc fire door is provided with hydraulic lifting arm, for automatically opening fire door when coke destructive distillation is ripe, closes fire door when coalingging.
Advantage of the present invention: combustion chamber transverse reciprocating heats, multiple horizontal quirk bidirectional reciprocating heating is established in combustion chamber, regenerator splits on coke oven both sides, the each heat exchanger channels of regenerator is communicated with the horizontal quirk of corresponding combustion chamber respectively, enormously simplify existing pit kiln structure, can realize quantitative heating, heated air is easy to adjust, gas flowing path is short, and systemic resistance is little, homogeneous heating; The short chute of the chute head of district can be cancelled, reduce special shaped brick quantity, the more important thing is as the vertical coke discharging of coking chamber creates favourable conditions.The vertical coke discharging of coking chamber, automatic coke discharging in the closed environment of coke oven bottom, fortune Jiao, quenching, utilize nitrogen circulation cooling, dedusting, fundamentally solve environmental protection, power saving; Coke oven both sides fire door can be cancelled simultaneously, cancel pushing machine, coke guide, quenching car, cancel ground dedusting device, reasonable arrangement dry coke quenching facility locations; Coking chamber quantity can also be increased, increase coking chamber length, increase height, can prolonging furnace age, improve production capacity.Thus reduce pit kiln investment, save running cost, simplify production operation.
Accompanying drawing explanation
The structural representation that Fig. 1-7 is coking chambers when being single chamber; The structural representation that Fig. 8-14 is coking chambers when being two-chamber, and Fig. 1-7 corresponds respectively to Fig. 8-14;
Fig. 1 is transverse reciprocating heating, vertical coke discharging formula pit kiln longitudinal sectional view (A-A)
Fig. 2 is transverse reciprocating heating, vertical coke discharging formula pit kiln transverse sectional view (B-B)
Fig. 3 is transverse reciprocating heating, vertical coke discharging formula pit kiln side sectional view (C-C)
I.e. low-grade gas/the sectional view of flue gas heat exchange subchannel 8 from low-grade gas standpipe place of combustion chamber and regenerator, meanwhile, combustion chamber is identical with this figure from the structure of the sectional view at air standpipe place with the air/smoke heat exchange subchannel 9 of regenerator.
Fig. 4 is transverse reciprocating heating, vertical coke discharging formula pit kiln side sectional view (D-D)
I.e. low-grade gas/the sectional view of flue gas heat exchange subchannel 8 from flue gas standpipe place of combustion chamber and regenerator, meanwhile, combustion chamber is identical with this figure from the structure of the sectional view at flue gas standpipe place with the air/smoke heat exchange subchannel 9 of regenerator.
Fig. 5 is transverse reciprocating heating, the horizontal part sectioned view (E-E) of vertical coke discharging formula pit kiln
Fig. 6 is transverse reciprocating heating, vertical coke discharging formula pit kiln side partial sectional view (F-F)
Fig. 7 is the coking chamber side sectional view (indicating the conventional conduit such as the upcast of coking chamber in G-G, figure) of transverse reciprocating heating, vertical coke discharging formula pit kiln
Fig. 8 is transverse reciprocating heating, vertical coke discharging formula pit kiln longitudinal sectional view (H-H), and the H-H sectional structure shown in Fig. 8 is identical with Fig. 1.
Fig. 9 is transverse reciprocating heating, vertical coke discharging formula pit kiln transverse sectional view (I-I), and Fig. 9 has the silica brick partition wall of coking chamber compared with Fig. 2.
Figure 10 is transverse reciprocating heating, vertical coke discharging formula pit kiln side sectional view (J-J), and compared with the difference of Fig. 3, Figure 10 is that two cover transfer rollers are arranged at bottom, other structures illustrate identical with Fig. 3.
Figure 11 is transverse reciprocating heating, vertical coke discharging formula pit kiln side sectional view (K-K), and compared with the difference of Fig. 4, Figure 11 is that two cover transfer rollers are arranged at bottom, other structures illustrate identical with Fig. 4.
Figure 12 is transverse reciprocating heating, the horizontal part sectioned view (L-L) of vertical coke discharging formula pit kiln, and Figure 12 has the silica brick partition wall of coking chamber compared with Fig. 5.
Figure 13 is transverse reciprocating heating, vertical coke discharging formula pit kiln side partial sectional view (M-M), and compared with the difference of Fig. 6, Figure 13 is that two cover transfer rollers are arranged at bottom, other structures illustrate identical with Fig. 6.
Figure 14 is the coking chamber side sectional view (N-N) of transverse reciprocating heating, vertical coke discharging formula pit kiln, and Fig. 7 and Figure 14 embodies the structure of single chamber coking chamber and two-chamber coking chamber respectively, and Figure 14 comparatively Fig. 7 has silica brick partition wall.
Wherein, 1, coking chamber, 2, combustion chamber, 3, regenerator, 4, furnace wall, 5, horizontal quirk, 6, dividing plate brick, 7, heat exchanger channels, 8, low-grade gas/flue gas heat exchange subchannel, 9, air/smoke heat exchange subchannel,
10, low-grade gas standpipe, 11, air standpipe, 12, flue gas standpipe, 13, coke-oven gas standpipe,
14, low-grade gas/flue gas port, 15, air/smoke port, 16, coke-oven gas port, 17, low-grade gas/flue gas inner port, 18, air/smoke inner port, 19, low-grade gas/flue gas external port, 20, air/smoke external port,
21, combustion chamber low-grade gas/flue gas pipe connecting, 22, combustion air/flue gas pipe connecting, 23, coke-oven gas pipe connecting, 24, regenerator low-grade gas/flue gas pipe connecting, 25, regenerator air/smoke pipe connecting,
26, flue gas arm, 27, low-grade gas arm, 28, air arm, 29, coke-oven gas arm;
A2, port lid, A3, auto stove-door, A4, hole of coalingging, A5, the Jiao Tai that slips, A6, coke transfer roller, A7, furnace wall, A9, upcast, A10, bridge tube, A11, effuser, A12, coke disposal room, A13, insulated wall, A14, silica brick partition wall, A15, dryly put out stove, A16, entrance, A17, outlet, A18, dryly put out the cold nitrogen inlet of stove, A19, dryly put out the cold nitrogen outlet of stove, the cold nitrogen inlet of A20, treatment chamber, the cold nitrogen outlet of A21, treatment chamber.
Embodiment
As follows to the detailed description of the invention below in conjunction with accompanying drawing:
Transverse reciprocating heating, vertical coke discharging formula pit kiln, comprise coking chamber 1, multiple combustion chamber 2 that multiple top is provided with the hole A2 that coalings of band port lid, with the regenerator 3 split on both sides, each combustion chamber 2, described coking chamber 1 and interval, combustion chamber 2 are arranged, and each coking chamber 1 is forward and backward is provided with a combustion chamber 2;
It is characterized in that described coking chamber 1 four sides are built by laying bricks or stones by silica brick to form, bottom this coking chamber A1, be provided with auto stove-door A3, be provided with airtight coke disposal room A12 in the below of coking chamber A1 and combustion chamber 2,
In the A12 of coke disposal room, be positioned at and be provided with two below auto stove-door A3 and centroclinally slip burnt platform A5, being positioned at two and slipping burnt platform A5 and export below and be provided with coke transfer roller A6 at coke disposal room A12, be provided with at the end of coke transfer roller A6 and dryly put out stove A15;
Described combustion chamber 2 is built by laying bricks or stones into rectangular-shaped by silica brick;
Inside, each combustion chamber 2 sets up multiple horizontal quirk 5 up and down separately, separates between each horizontal quirk by dividing plate brick 6, is provided with low-grade gas/flue gas port one 4 and air/smoke port one 5 respectively at the two ends of each horizontal quirk,
The each horizontal quirk 5 of combustion chamber 2 is connected with corresponding regenerator 3 respectively, and described regenerator 3 to hocket heat exchange for the fume afterheat of being discharged combustion chamber and heated air in regenerator 3.
The situation of above structure to be the inner cavity chamber of coking chamber be single chamber, after the structures such as the inner cavity chamber of above-mentioned coking chamber and the coke disposal room of below thereof are redesigned, the another set of structure parallel with above-mentioned single chamber coking chamber scheme can be obtained, as seen in figures 8-14, above-mentioned coking chamber 1 includes vertical silica brick partition wall A14 and coking chamber 1 is isolated into two chambers in left and right; About two airtight coke disposal room A12 are side by side set in the below of coking chamber 1 and combustion chamber 2, and two, left and right coke disposal room A12 lays respectively at immediately below coking chamber 1 left chamber, combustion chamber 2 left chamber and the right chamber of coking chamber 1, the right chamber in combustion chamber 2; Auto stove-door A3 is respectively equipped with in the bottom of coking chamber 1 two chambers,
In the A12 of coke disposal room, be positioned at and be provided with two below auto stove-door A3 and centroclinally slip burnt platform 5, being positioned at two and slipping burnt platform A5 and export below and be provided with coke transfer roller A6 at coke disposal room A12, be provided with at the end of coke transfer roller A6 and dryly put out stove A15.
Shown in Fig. 2-4 be provided by the invention a kind of optimize after regenerator, its structure is as follows: each regenerator 3 inside is separated into multiple heat exchanger channels 7 up and down, heat exchanger channels 7 and one_to_one corresponding identical with combustion chamber horizontal quirk 5 quantity, each heat exchanger channels 7 comprises horizontal low-grade gas/flue gas heat exchange subchannel 8 and air/smoke heat exchange subchannel 9, in heat exchanger channels 7, heat storage is housed;
Low-grade gas/flue gas inner port 17 and low-grade gas/flue gas external port 19 is respectively equipped with at the two ends of each low-grade gas/flue gas heat exchange subchannel 8; Air/smoke inner port 18 and air/smoke external port 20 is respectively equipped with at the two ends of each air/smoke heat exchange subchannel 9;
Described low-grade gas/flue gas inner port 17 level connection joint is in the low-grade gas/flue gas port one 4 of each self-corresponding combustion chamber quirk; Described air/smoke inner port 18 level connection joint is in each self-corresponding air/smoke port one 5;
Described low-grade gas/flue gas external port 19 is connected with flue gas standpipe 12 with low-grade gas standpipe 10 with the regenerator air/smoke pipe connecting 25 of band reversing valve respectively by the regenerator low-grade gas/flue gas pipe connecting 24 of band reversing valve;
Described air/smoke external port 20 is connected with flue gas standpipe 12 with air standpipe 11 with the regenerator air/smoke pipe connecting 25 of band reversing valve respectively by the regenerator low-grade gas/flue gas pipe connecting 24 of band reversing valve.
Obviously, because regenerator 3 and coking chamber 1 are relatively independent in structural relation, this regenerator 3 can simultaneous adaptation in the dissimilar coking chamber such as single chamber or dual cavity.
Following improvement is carried out on the basis of said structure, can realize utilizing coke-oven gas to carry out compound heating: as shown in Fig. 2,5, above-mentioned horizontal quirk 5 two ends are also respectively equipped with coke-oven gas port one 6, and described coke-oven gas port one 6 is connected with coke-oven gas standpipe 13 by the coke-oven gas pipe connecting 23 of band stopping valve.
In order to improve coke discharging and heats, need improve accordingly the inner chamber of coking chamber, and keep the outer shape of its cuboid simultaneously, specific as follows: the pit kiln body of heater external surface shape that above-mentioned coking chamber 1 and interval, combustion chamber 2 arrange and formed is cuboid;
Wherein, the inner chamber of coking chamber 1 is vertical section is trapezoidal structure, up-narrow and down-wide, and side direction section is rectangle; Correspondingly, the structure of the inner chamber of above-mentioned combustion chamber 2 to be vertical sections be inverted trapezoidal, wide at the top and narrow at the bottom, and side direction section is rectangle;
The upper limb of each described coking chamber 1 inner chamber and lower edge are all higher than upper limb and the lower edge of combustion chamber, both sides 2 inner chamber before and after it, and the lateral length of each coking chamber 1 inner chamber is all shorter than the lateral length of combustion chamber, both sides 2 inner chamber before and after it.Briefly coking chamber 1 is than combustion chamber 2 height (as Fig. 1), and narrower than combustion chamber 2 (as Fig. 2).
As shown in Figure 1, the cross-sectional shape of above-mentioned auto stove-door A3 is circular arc, and the below of circular arc fire door is provided with hydraulic lifting arm, for automatically opening fire door A3 when coke destructive distillation is ripe, closes fire door when coalingging.
Each flue gas standpipe 12 of the present invention is all connected on flue gas arm 26; Each low-grade gas standpipe 10 is all connected on low-grade gas arm 27, and each air standpipe 11 is all connected on air arm 28, and each coke-oven gas standpipe 13 is all connected on coke-oven gas arm 29.
Low-grade gas/flue gas the port one 4 at each horizontal quirk two ends and air/smoke port one 5, respectively by combustion chamber low-grade gas/flue gas pipe connecting 21 and combustion air/flue gas pipe connecting 22, are connected with air/smoke inner port 18 level with the low-grade gas/flue gas inner port 17 of the regenerator heat exchanger channels corresponding to both sides.
Spaced by furnace wall 4 between combustion chamber 2 and coking chamber 1; Heated air is burnt in combustion chamber 2, by furnace wall 4, heat is supplied to coking chamber 1, coal charge be heated in coking chamber 1 destructive distillation generate coke.
The technological process that use the present invention carries out coking is as follows:
Vertical coke discharging periodical operation, when a coking cycles starts, charging hole lid A2 opened by mobile coal charger, by coalingging, hole A4 loads coking chamber 1 coal charge, coking chamber and combustion chamber furnace wall A7 are that silica brick is built by laying bricks or stones, coal charge is heated high temperature carbonization in coking chamber, when coke is ripe, coking chamber furnace bottom fire door A3 opens automatically, furnace bottom fire door is by hydraulic stem automatic lifting, metal fire door is inlaid with circular arc lagging material, ripe coke drops to two by self gravitation and slips on burnt sloping platform A5, and be slipped on stove group hot coke transfer roller A6 along slipping burnt sloping platform, slip to have between burnt sloping platform and hot coke transfer roller and keep off burnt plate, the burnt sloping platform that slips is supported by support, hot coke transfer roller is fixed by support.
Hot coke conveying A6 machine is transported to dry coke quenching facility quenching in platform position between stove coke, and hot coke enters the dry stove A15 that puts out through charcoal conveying A6 from the dry stove entrance A16 that puts out, and then discharges from the dry outlet of still A17 that puts out; Coke disposal room A12 is connected with water cooler, fly-ash separator, nitrogen blower fan, coke disposal room A12 pressure-fired nitrogen circulation, cooling, dedusting, specifically cold nitrogen puts out stove cold nitrogen inlet A18, treatment chamber cold nitrogen inlet A20 respectively by dry and enter treatment chamber and dryly put out after stove cools, and discharges from the dry stove cold nitrogen outlet A19 and the cold nitrogen outlet A21 for the treatment of chamber that puts out; In dry coke quenching facility, coke is cooled, and the coke of cooling is transported to next process.
Destructive distillation goes out raw gas and enters effuser A11 by upcast A9 through cross under A10, enters next process, as Fig. 7,14.Brick insulation A13 insulation around whole coke oven.
Heat-processed of the present invention is as follows:
Within a heating period, when heating with low-grade gas, low-grade gas and air are respectively by low-grade gas standpipe 10 and the air standpipe 11 of side, by the pipe connecting 24 of the band reversing valve of homonymy, enter low-grade gas heat exchange subchannel 8 and the air heat-exchange subchannel 9 of homonymy, in respective heat exchange subchannel, the heat of low-grade gas and absorption of air heat storage, low-grade gas after preheating and air, respectively by respective pipe connecting 21, the 22 horizontal quirks 5 entering combustion chamber 2, in horizontal quirk, low-grade gas and air diffuser burning, release heat, flue gas after burning, by the pipe connecting 21 of another port, two combustion chambers, 22 low-grade gas heat exchange subchannel 8 and the air heat-exchange subchannels 9 entering opposite side, in respective heat exchange subchannel, flue gas release waste-heat heat storage, release the flue gas after waste heat, respectively by the pipe connecting 25 of the band reversing valve of opposite side regenerator, enter flue gas standpipe 12.
Within next heating period, low-grade gas and air are respectively by the other side low-grade gas standpipe 10 and air standpipe 11, by the pipe connecting 24 of this side band reversing valve, enter the heat exchanger channels 7 of homonymy regenerator 3, the horizontal quirk 5 of combustion chamber 2, the heat exchanger channels 7 of opposite side regenerator 3, repeat to absorb preheating, combustion heat release, release waste heat process, move in circles, go round and begin again.
Equally, within a heating period, when melting down heating with coke-oven gas, in order to avoid the pre-thermo-cracking of coke-oven gas, the low-grade gas standpipe 10 of side and air standpipe 11, low-grade gas heat exchange subchannel 8 and air heat-exchange subchannel 9 all walk air, air after preheating is by two connecting tubes 21, 22, enter two port ones 4 of the horizontal quirk of combustion chamber, 15, coke-oven gas is then without preheating, by the pipe connecting 23 of this side coke-oven gas standpipe 13 by band stopping valve, directly enter the port one 6 at the horizontal quirk center of combustion chamber, in horizontal quirk, coke-oven gas and two airflow diffusion combustions, release heat, flue gas after burning enters low-grade gas heat exchange subchannel 8 and the air heat-exchange subchannel 9 of the other side, release waste heat, vice versa.
In transverse reciprocating heating system, each horizontal quirk of institute's combuster, each heat exchanger channels of all both sides regenerator, all controls running according to above-mentioned rule by computer program.
Claims (6)
1. transverse reciprocating heating, vertical coke discharging formula pit kiln, comprise coking chamber (1), multiple combustion chamber (2) that multiple top is provided with the hole of coalingging (A2) of band port lid, with the regenerator (3) split on each combustion chamber (2) both sides, described coking chamber (1) and combustion chamber (2) interval are arranged, and each coking chamber (1) is forward and backward is provided with a combustion chamber (2);
It is characterized in that described coking chamber (1) four side is built by laying bricks or stones by silica brick to form, this coking chamber (1) bottom is provided with auto stove-door (A3),
Airtight coke disposal room (A12) is provided with at coking chamber (1) and the below of combustion chamber (2),
In coke disposal room (A12), be positioned at auto stove-door (A3) below and be provided with two centroclinal Jiao Tai (A5) that slip, being positioned at two and slipping Jiao Tai (A5) outlet below and be provided with coke transfer roller (A6) at coke disposal room (A12), is provided with at the end of coke transfer roller (A6) and dryly puts out stove (A15);
Described combustion chamber (2) is built by laying bricks or stones into rectangular-shaped by silica brick;
Each combustion chamber (2) inside sets up multiple horizontal quirk (5) up and down separately, separate by dividing plate brick (6) between each horizontal quirk, low-grade gas/flue gas port (14) and air/smoke port (15) is provided with respectively at the two ends of each horizontal quirk
The each horizontal quirk (5) of combustion chamber (2) is connected with corresponding regenerator (3) respectively, and described regenerator (3) to hocket heat exchange for the fume afterheat of being discharged combustion chamber and heated air in regenerator (3).
2. transverse reciprocating heating as claimed in claim 1, vertical coke discharging formula pit kiln, is characterized in that above-mentioned coking chamber (1) includes vertical silica brick partition wall (A14) and coking chamber (1) is isolated into two chambers in left and right; About two airtight coke disposal rooms (A12) are side by side set in the below of coking chamber (1) and combustion chamber (2), and two, left and right coke disposal room (A12) lays respectively at immediately below coking chamber (1) left chamber, combustion chamber (2) left chamber and the right chamber of coking chamber 1, combustion chamber (2) right chamber; Auto stove-door (A3) is respectively equipped with in the bottom of coking chamber (1) two chamber,
In coke disposal room (A12), be positioned at auto stove-door (A3) below and be provided with two centroclinal Jiao Tai (5) that slip, being positioned at two and slipping Jiao Tai (A5) outlet below and be provided with coke transfer roller (A6) at coke disposal room (A12), is provided with at the end of coke transfer roller (A6) and dryly puts out stove (A15).
3. transverse reciprocating heating as claimed in claim 1 or 2, vertical coke discharging formula pit kiln, it is characterized in that each regenerator (3) inside is separated into multiple heat exchanger channels (7) up and down, heat exchanger channels (7) and one_to_one corresponding identical with combustion chamber horizontal quirk (5) quantity, each heat exchanger channels (7) comprises horizontal low-grade gas/flue gas heat exchange subchannel (8) and air/smoke heat exchange subchannel (9), and heat exchanger channels is equipped with heat storage in (7);
Low-grade gas/flue gas inner port (17) and low-grade gas/flue gas external port (19) is respectively equipped with at the two ends of each low-grade gas/flue gas heat exchange subchannel (8); Air/smoke inner port (18) and air/smoke external port (20) is respectively equipped with at the two ends of each air/smoke heat exchange subchannel (9);
Described low-grade gas/flue gas inner port (17) level connection joint is in the low-grade gas/flue gas port (14) of each self-corresponding combustion chamber quirk; Described air/smoke inner port (18) level connection joint is in each self-corresponding air/smoke port (15);
Described low-grade gas/flue gas external port (19) is connected with flue gas standpipe (12) with low-grade gas standpipe (10) with the regenerator air/smoke pipe connecting (25) of band reversing valve respectively by the regenerator low-grade gas/flue gas pipe connecting (24) of band reversing valve;
Described air/smoke external port (20) is connected with flue gas standpipe (12) with air standpipe (11) with the regenerator air/smoke pipe connecting (25) of band reversing valve respectively by the regenerator low-grade gas/flue gas pipe connecting (24) of band reversing valve.
4. transverse reciprocating heating as claimed in claim 1 or 2, vertical coke discharging formula pit kiln, it is characterized in that above-mentioned horizontal quirk (5) two ends are also respectively equipped with coke-oven gas port (16), described coke-oven gas port (16) is connected with coke-oven gas standpipe (13) by the coke-oven gas pipe connecting (23) of band stopping valve.
5. transverse reciprocating heating as claimed in claim 1 or 2, vertical coke discharging formula pit kiln, is characterized in that the pit kiln body of heater external surface shape that above-mentioned coking chamber (1) and combustion chamber (2) interval arrange and formed is cuboid;
Wherein, the inner chamber of coking chamber (1) is vertical section is trapezoidal structure, up-narrow and down-wide, and side direction section is rectangle; Correspondingly, the structure of the inner chamber of above-mentioned combustion chamber (2) to be vertical section be inverted trapezoidal, wide at the top and narrow at the bottom, and side direction section is rectangle;
The upper limb of described each coking chamber (1) inner chamber and lower edge are all higher than upper limb and the lower edge of combustion chamber, both sides (2) inner chamber before and after it, and the lateral length of each coking chamber (1) inner chamber is all shorter than the lateral length of combustion chamber, both sides (2) inner chamber before and after it.
6. transverse reciprocating heating as claimed in claim 1 or 2, vertical coke discharging formula pit kiln, it is characterized in that the above-mentioned cross-sectional shape being positioned at the auto stove-door (A 3) of coking chamber (1) bottom is circular arc, the below of circular arc fire door is provided with hydraulic lifting arm.
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| CN201410043735.2A CN103756689B (en) | 2014-01-29 | 2014-01-29 | Coke oven capable of horizontally heating in reciprocating manner and vertically extracting coke |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103952159A (en) * | 2014-04-16 | 2014-07-30 | 青岛伊诺威能源化工新技术有限公司 | Heat storage device for transversely heating vertical coke exhaust coke oven |
| CN103923664A (en) * | 2014-04-23 | 2014-07-16 | 青岛伊诺威能源化工新技术有限公司 | Transverse reciprocating heating device of vertical coke-discharging coke oven |
| CN106085471A (en) * | 2016-07-22 | 2016-11-09 | 华电重工股份有限公司 | A kind of device for improving quality of low-order coal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB245190A (en) * | 1924-09-25 | 1925-12-28 | Stewart Roy Illingworth | Improvements in apparatus for use in the carbonization of fuel |
| US3988210A (en) * | 1975-02-28 | 1976-10-26 | Politechnika Slaska Im Wincentego Pstrowskiego | Furnace for manufacturing high calorific gas and coke from coal |
| CN1005570B (en) * | 1987-07-23 | 1989-10-25 | 冶金工业部鞍山焦化耐火材料设计研究院 | A vertical carbonizing oven with heat accumulating chamber and double carbonizing chamber |
| JP2889166B2 (en) * | 1995-11-06 | 1999-05-10 | 川崎製鉄株式会社 | Furnace wall repair equipment for coke ovens |
| CN1490379A (en) * | 2002-10-15 | 2004-04-21 | 李成福 | Vertical coke oven |
| CN1242024C (en) * | 2004-05-02 | 2006-02-15 | 程相魁 | Heat transfer room type heat recovery coke-oven |
| CN201071352Y (en) * | 2006-06-19 | 2008-06-11 | 王松录 | Tubular shaped vertical coke furnace for closed destructive distillation and delamination charing |
| CN101712878B (en) * | 2009-11-23 | 2013-04-24 | 北京神雾环境能源科技集团股份有限公司 | Moving-bed retorting furnace heated comprehensively by radiant tube and circulating airflow |
| CN203683452U (en) * | 2014-01-29 | 2014-07-02 | 刘运良 | Transverse reciprocating heating and vertical coke discharging type coke oven |
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