CN102786942A - Gas reversing method for coal pyrolyzing furnace gas heater - Google Patents

Abstract

The invention discloses a gas reversing method for a coal pyrolyzing furnace gas heater. Equipment used in the method comprises an upper disc, a lower disc, a rotary reversing motor, an air fan, a gas fan and a waste gas fan. The method comprises the following steps that (1) air is sent out by the air fan through a first air branched passage, purified gas is sent out by the gas fan through a first gas branched passage, and meanwhile corresponding combustion waste gas is sucked by the waste gas fan and then is exhausted through a combustion waste gas main pipe; and (2) after the rotary reversing motor drives the upper disc to reversely rotate on the lower disc, the air is sent out by the air fan through a second air branched passage, the purified gas is sent out by the gas fan through a second gas branched passage, and meanwhile corresponding combustion waste gas is sucked into a first combustion waste gas branched passage by the waste gas fan and then is exhausted through the combustion waste gas main pipe. Alternative combustion of two groups of gas heaters and accumulated heat exchange of two groups of accumulated heat exchangers are realized in the work way that the air is induced for two times and exhausted for one time, so the gas heater is higher in combustion efficiency, and the coke is high in quality.

Description

The gas commutation method that a kind of coal cracking stove combustion heater is used

Technical field

The present invention relates to a kind of gas commutation method, particularly a kind of coal supply pyrolysis oven combustion heater provides the gas commutation method of the required purified gas of burning and air admission and discharging combustion exhaust.

Background technology

Coal cracking stove (pit kiln) in the market mostly adopts intermittent type coking, go into the stove coal proportioning, dewater, advance coal, preheating, charing, burnt upgrading, dried each process step such as put out is relatively independent, can not carry out continuous production, production efficiency is low; In addition, the raw gas that produces in the coal cracking process contains a lot of useful compositions, like H ₂S, HCH or the like sour gas, NH ₃Organism such as alkaline gas, tar class, benzene class, naphthalene class, washing oil class do not have the complete complete technology that raw gas derivation, reclaiming clean are used.

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

Summary of the invention

The invention provides the gas commutation method that a kind of coal cracking stove combustion heater is used; This method can either provide burning required purified gas and air admission by coal supply pyrolysis oven combustion heater; Can discharge combustion heat waste gas again, improve the combustion heater efficiency of combustion, save the coking cost.

The present invention realizes that the technical scheme that above-mentioned purpose is taked is:

The gas commutation method that a kind of coal cracking stove combustion heater is used; The employed equipment of gas commutation method comprises dish, lower wall, rotation reversing motor, air blower, gas fan, exhaust gas fan; Described lower wall is connected to an air person in charge respectively and first air is in charge of, second air is in charge of; Coal gas is responsible for and first gas manifold, second gas manifold; Combustion exhaust is responsible for and second combustion exhaust is in charge of, first combustion exhaust is in charge of, and wherein, second combustion exhaust is in charge of to be in charge of to be in charge of with first air with first combustion exhaust and is in charge of with second air and the setting of first gas manifold and second gas manifold is just exchanged; The described dish of going up rotates and is fitted in the lower wall top, on coil respectively that correspondence is provided with air pipe connecting, coal gas pipe connecting, combustion exhaust pipe connecting, described rotation reversing motor and last dish are in transmission connection, present method performing step is:

(1), drive to go up dish when the rotation reversing motor and on lower wall, rotate, air is responsible for first air and is in charge of when connecting, coal gas is responsible for first gas manifold and also is connected; Meanwhile, corresponding combustion exhaust is responsible for to be in charge of to be in second combustion exhaust and is connected; Air will be blasted to be in charge of through air pipe connecting and first air successively after air is responsible for by air blower and see off; Simultaneously; Raw gas will be seen off through coal gas pipe connecting first gas manifold after purified gas will be blasted the coal gas person in charge by gas fan through obtaining behind the reclaiming clean successively; Meanwhile, corresponding combustion exhaust is sucked by exhaust gas fan and is responsible for through the exhaust gas fan discharge through the second combustion exhaust pipe connecting and combustion exhaust successively after second combustion exhaust is in charge of;

(2), when driving, the rotation reversing motor goes up dish backward rotation on lower wall; Air is responsible for second air and is in charge of when being in on-state; Coal gas is responsible for and the second gas manifold on-state, and meanwhile, corresponding combustion exhaust is responsible for and first combustion exhaust also is in charge of and is connected; Air will be blasted to be in charge of through air pipe connecting and second air successively after air is responsible for by air blower and see off; Simultaneously; Raw gas will be seen off through coal gas pipe connecting second gas manifold after purified gas will be blasted the coal gas person in charge by gas fan through obtaining behind the reclaiming clean successively; Meanwhile, corresponding combustion exhaust is sucked by exhaust gas fan and is responsible for through the exhaust gas fan discharge through the first combustion exhaust pipe connecting and combustion exhaust successively after first combustion exhaust is in charge of.

The present invention advances the regenerative heat exchange that the mode of operation that outes can realize two groups of combustion heater alternate combustion and two groups of regenerative heat exchangers through gas two; Make that the combustion heater burning is more efficient; Guarantee required temperature and the heat of stove coal charing in the coal cracking stove, the coke quality of producing is high.

Description of drawings

Do further explain below in conjunction with the accompanying drawing specific embodiments of the invention.

Fig. 1 is a F-F place enlarged view among Figure 15;

Fig. 2 is an x-x place sectional view among Fig. 1;

Fig. 3 is a gas reverser synoptic diagram of the present invention;

Fig. 4 is a gas reverser upper lower burrs synoptic diagram of the present invention;

Fig. 5 is a c-c place schematic cross-section among Figure 14;

Fig. 5-the 1st, gas reverser of the present invention is connected synoptic diagram with the combustion heater pipe network;

Fig. 6 is a z-z place schematic cross-section among Figure 11;

Fig. 7 is a w-w place schematic cross-section among Figure 11;

Fig. 8 is a y-y place schematic cross-section among Figure 11;

Fig. 9 is the burnt modifying apparatus synoptic diagram (u-u place sectional view among Figure 11) of coal cracking stove involved in the present invention;

Figure 10 is the quirk bow synoptic diagram (t-t place sectional view among Figure 11) of coal cracking stove involved in the present invention;

Figure 11 is a coal cracking carbonizing apparatus synoptic diagram of the present invention;

Figure 12 is the dry coke quenching auxiliary synoptic diagram (H-H enlarged view among Figure 15) of coal cracking stove involved in the present invention;

The quenching bridge bow synoptic diagram of the dry coke quenching auxiliary of the coal cracking stove that Figure 13 is involved in the present invention;

Figure 14 be coal cracking stove involved in the present invention the industry control center be electrically connected synoptic diagram;

Figure 15 is a coal cracking stove general illustration involved in the present invention.

Embodiment

The specific embodiment of the gas commutation method that a kind of coal cracking stove of the present invention combustion heater is used is mainly introduced in following the 4th part first segment in detail.

First partly goes into stove coal proportioning and preparation

As select 5 kinds of different coals for use; They are respectively that bottle coal, rich coal, coking coal, 1/3rd coking coal, lean coal mix the fragmentation of sieving then earlier; Reach until crushed particles and to be formed into the stove coal below the 5mm; Certainly coal cracking stove of the present invention to other proportioning and particle size to go into the stove coal suitable equally, do not constitute the required restriction of going into the stove coal dust of coal cracking stove of the present invention.

Second partly goes into the stove coal dewatering

Go into dewatering of stove coal through going into stove coal dewatering device to what get into this coal cracking stove in advance, play energy-saving and cost-reducing effect.

Third part is gone into the stove coal and is advanced coal, preheating, adjusting, cooling

The stove coal process of going into after the dehydration carries the back temperature generally can reduce to normal temperature, and temperature may be lower, so need before getting into coking chamber, carry out preheating, adjusting, cooling to going into the stove coal.

First segment is gone into the stove coal and is advanced coal and advance device for coal and be used for importing and go into the stove coal after the dehydration

Second joint is gone into the top that stove coal preheating preheating unit is arranged at the below of device for coal into and is positioned at the coal cracking stove.Preheating unit with preheating to going into the stove coal through what carry that the back temperature reduces.

The go into stove coal of the 3rd joint after the preheating regulated and is arranged on upper of furnace body into stove coal surge bunker and is positioned at the preheating unit bottom, goes into stove coal surge bunker and is used for regulating and in the coking chamber of coal cracking stove, adds the amount of injecting the stove coal.

The 4th part is gone into stove coal cracking (charing heating, burnt upgrading, dry coke quenching)

First segment is gone into stove coal cracking charing heating

Shown in figure 15, coal cracking carbonizing apparatus 6 is arranged on body of heater 91 middle parts, comprises that mainly coking chamber 61, outer combustion gas heating unit 64, internal combustion heating unit 67, quirk bow 65 constitute; As shown in Figure 2: coking chamber 61 constitutes an annulus by the inside and outside ringwall 612,611 of fire-resistant thermally conductive material; Being centered around coking chamber exterior wall 611 ring peripheries is outer combustion gas heating unit 64; Wherein outer combustion gas heating unit 64 is mainly identical first combustion heater 62 of some groups of (these routine 9 groups) structures, second combustion heater 60 and gas reversing system 66 and constitutes; In addition; Shown in figure 15: because coking chamber 61 is highly higher, wherein outer combustion gas heating unit 64 mainly is divided into upper, middle and lower syllogic heating, and every section has identical first combustion heater 62 of 9 groups of structures, second combustion heater, 60 formations.

As shown in Figure 6: is internal combustion heating unit 67 in ringwall 612 rings in the coking chamber, internal combustion heating unit 67 is mainly by some groups of (these routine 3 groups) structures identical the 3rd combustion heater 68, the 4th combustion heater 69 and quenching waste gas heater 63.

As shown in Figure 1, described first combustion heater 62 comprises that mainly first combustion chamber 621, first coal gas get into the arm 622 and first regenerative heat exchanger 624.

As shown in Figure 2; Body of heater 91 exterior walls that first combustion chamber 621 is processed by refractory materials and fire-resistant thermally conductive material are processed 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 1, first coal gas entering arm 622 passes body of heater 91 exterior walls and leads in first combustion chamber 621.

Like Fig. 1, shown in 12: first regenerative heat exchanger 624 comprises the first accumulation of heat chamber 626, first heat storage 623, the first air admission arm 627 and the first combustion exhaust exhaust outlet 628; The first accumulation of heat chamber 626 is arranged in body of heater 91 exterior walls; First heat storage 623 is provided with in the first accumulation of heat chamber 626; The first accumulation of heat chamber, 626 1 ends lead to 621 bottoms, first combustion chamber, and the other end is connected to the first air admission arm 627 and the first combustion exhaust exhaust outlet 628 respectively.

As shown in Figure 2: as between the first air admission arm 627 and the first accumulation of heat chamber 626, to be provided with the first one-way air valve, 629, the first one-way air valves 629 and to allow air to flow into first combustion chamber 621 from the first air admission pipe 627 and the first accumulation of heat chamber 626; Between the first combustion exhaust exhaust outlet 628 and the first accumulation of heat chamber 626, be provided with the first unidirectional waste gas valve 620; The first unidirectional waste gas valve 620 allows the gas-fired waste gas first accumulation of heat chamber 626 of flowing through from first combustion chamber 621; Discharge (certainly from the first combustion exhaust exhaust outlet 628 at last; The gas reversing system 66 that employing is described below is responsible for 667 and first air when air and is in charge of 6671 connections, and the air person in charge 667 and second air is in charge of 6673 and is in cut-out; Meanwhile; The combustion exhaust person in charge 669 is in charge of 6691 with first combustion exhaust and also cuts off mutually; And corresponding combustion exhaust is responsible for 669 and second combustion exhaust and is in charge of 6693 and is in and is connected, and can play the effect of the replacement first one-way air valve 629 and the first unidirectional waste gas valve 620).

In like manner; As shown in Figure 2: identical second combustion heater 60 of structure comprises that mainly second combustion chamber 601, second coal gas get into the arm 602 and second regenerative heat exchanger 604; Body of heater 91 exterior walls that second combustion chamber 601 is processed by refractory materials and fire-resistant thermally conductive material are processed the gas-fired quirk that coking chamber outer ring wall 611 and outer quirk partition wall 625 surround a relative closure, and second coal gas gets into arm 602 and passes body of heater 91 exterior walls and lead in first combustion chamber 601.

As shown in Figure 2: second regenerative heat exchanger 604 comprises the second accumulation of heat chamber 606, second heat storage 603, the second air admission arm 607 and the second combustion exhaust exhaust outlet 608; The second accumulation of heat chamber 606 is arranged in body of heater 91 exterior walls; Second heat storage 603 is provided with in the second accumulation of heat chamber 606; The second accumulation of heat chamber, 606 1 ends lead to 601 bottoms, second combustion chamber; The other end is connected to the second air admission arm 607 and the second combustion exhaust exhaust outlet 608 respectively; Between the second air admission arm 607 and the second accumulation of heat chamber 606, being provided with the second one-way air valve, 609, the second one-way air valves 609 allows air to flow into second combustion chamber 601 from the second air admission pipe 607 and the second accumulation of heat chamber 606; Between the second combustion exhaust exhaust outlet 608 and the second accumulation of heat chamber 606, be provided with the second unidirectional waste gas valve 600; The second unidirectional waste gas valve 600 allows the gas-fired waste gas second accumulation of heat chamber 606 of flowing through from second combustion chamber 601; Discharge from the second combustion exhaust exhaust outlet 608 at last and (certainly, adopt the gas reversing system 66 that is described below, be responsible for 667 and first air when air and be in charge of 6671 cut-outs; The air person in charge 667 and second air is in charge of 6673 and is in connection; Meanwhile, the combustion exhaust person in charge 669 and first combustion exhaust is in charge of 6691 and also is connected, and the corresponding combustion exhaust person in charge 669 is in charge of 6693 also cut-outs mutually with second combustion exhaust; Can play the effect that replaces the second one-way air valve and the second unidirectional waste gas valve).

Like Fig. 1, shown in Figure 2; The top of outer quirk partition wall 625 is provided with combustion chamber through hole 6251 between first combustion chamber 621 and next-door neighbour's second combustion chamber 601; Combustion chamber through hole 6251 is connected first combustion chamber 621 and next-door neighbour's second combustion chamber 601 and is constituted related one group; In this example, outer combustion gas heating unit 64 is provided with quirk partition wall 625 partition walls outside 18 roads altogether, forms 9 groups of related burning groups; In addition, shown in figure 15; Because coking chamber 61 is highly higher, wherein outer combustion gas heating unit 64 mainly is divided into the heating of upper, middle and lower syllogic, and every section has identical first combustion heater 62 of 9 groups of structures, second combustion heater 60 to constitute.

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

1, when the coal gas in first combustion chamber 621 burns; Purified gas behind the raw gas reclaiming clean gets into arm 622 through first coal gas and enters in first combustion chamber 621; The first one-way air valve 629 is opened, and allows air to flow into first combustion chamber 621 from the first air admission pipe 627 and the first accumulation of heat chamber 626; The described first unidirectional waste gas valve 620 is closed; After the hot waste gas that produces gets into second combustion chamber 601 through logical 6251 holes, combustion chamber; Hot waste gas is during through second heat storage 603 in the second accumulation of heat chamber 606; 603 pairs of hot waste gass of second heat storage carry 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 second combustion chamber 601; Purified gas behind the raw gas reclaiming clean gets into arm 602 through second coal gas and enters in second combustion chamber 601; The second one-way air valve 609 is opened; Air enters into second combustion chamber, 601 processes from the second air admission arm 607 through the second accumulation of heat chamber 606, and air is become the gas-fired in combustion-supporting second combustion chamber 601 of warm air by the heat that second heat storage 603 discharges; Meanwhile; The described second unidirectional waste gas valve 600 is closed; After hot waste gas after the gas-fired in second combustion chamber 601 gets into first combustion chamber 621 through combustion chamber through hole 6251; Hot waste gas is during through first heat storage 623 in the first accumulation of heat chamber 626, and 623 pairs of hot waste gass of first heat storage carry 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 carried out with the 2nd step alternate cycles.

As shown in Figure 1: as on body of heater 91 exterior walls, also to be 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 the technician intuitively observes each combustion chamber; Be provided with chamber temperature table 6203 in the chamber temperature monitoring holes 6201 and be used for temperature monitoring, so that to the assessment of coal cracking process the combustion chamber.

Shown in figure 14: chamber temperature table 6203 links with industry control center 90, is gathered the temperature data of chamber temperature table 6203 automatically by industry control center 90.

Shown in Fig. 3, Fig. 4, Fig. 5-1; 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 air respectively and is responsible for 667 and first air and is in charge of 6671, second air and is in charge of 6673; Coal gas is responsible for 668 and first gas manifold 6681, second gas manifold 6683; The combustion exhaust person in charge 669 and second combustion exhaust is in charge of 6693, first combustion exhaust and is in charge of 6691; Wherein, second combustion exhaust is in charge of 6693 and first combustion exhaust and is in charge of 6691 and first air and is in charge of 6671 and second air and is in charge of the setting of 6673 and first gas manifold 6681 and second gas manifold 6683 and just exchanges (shown in Fig. 4, Fig. 5-1).

Shown in Fig. 3,15, Fig. 5-1: on coil 661 and be fitted in lower wall 662 tops; Last dish 661 correspondence respectively is provided with air pipe connecting 6672, coal gas pipe connecting 6682, combustion exhaust pipe connecting 6692; Go up dish 661 and on lower wall 662, back and forth rotate and realize that air is responsible for 667 and constantly is in charge of 6671 and second air with first air and is in charge of 6673 and connects and cut off conversion thereby rotation reversing motor 663 drives; Coal gas is responsible for 668 and is constantly connected and cut off conversion with first gas manifold 6681 and second gas manifold 6683, combustion exhaust be responsible for 669 constantly and second combustion exhaust be in charge of 6693 and first combustion exhaust and be in charge of 6691 and connect and cut off conversion (be in charge of 6671 and second air to be in charge of the switching of 6673 and first gas manifold 6681 and second gas manifold 6683 just opposite) with first air.

Shown in Fig. 1, Fig. 5-1, also be provided with two groups of bustle pipes in the periphery of body of heater 91, comprise the first air bustle pipe, 6674, the first coal gas bustle pipes, 6684, the first combustion exhaust bustle pipes 6694; The second air bustle pipe 6675, the second coal gas bustle pipe, 6685, the second combustion exhaust bustle pipes 6695.

Shown in Fig. 5-1: the first air bustle pipe 6674 is in charge of the 6671 and first air admission arm 627 with first air and is linked up, and first air is in charge of 6671, the first air bustle pipe 6674, the first air admission arm 627, the first accumulation of heat chamber 626 and first combustion chamber 621 constitutes same path; Meanwhile, the first coal gas bustle pipe 6684 gets into arm 622 with first gas manifold 6681 and first coal gas and links up, and first gas manifold 6681, the first coal gas bustle pipe 6684, first coal gas are got into arm 622 and the same path of first combustion chamber, 621 formations; This moment simultaneously; The first combustion exhaust bustle pipe 6694 is first combustion exhaust to be in charge of the 6681 and first combustion exhaust exhaust outlet 628 link up, with first combustion exhaust be in charge of 6681, the first combustion exhaust exhaust outlet 628, the first accumulation of heat chamber 626 constitutes same path with combustion chamber 621;

In like manner; The second air bustle pipe 6675 is in charge of the 6673 and second air admission arm 607 with second air and is linked up, and second air is in charge of 6673, the second air bustle pipe 6675, the second air admission arm 607, the second accumulation of heat chamber 606 and second combustion chamber 601 constitutes same path; Meanwhile; The second coal gas bustle pipe 6685 gets into arm 602 with second gas manifold 6683 and second coal gas and links up, with second gas manifold 6683, the second coal gas bustle pipe 6685 will, second coal gas gets into arm 602 and second combustion chamber 601 constitutes same path; Meanwhile; The second combustion exhaust bustle pipe 6695 is in charge of the 6693 and second combustion exhaust exhaust outlet 608 with second burning gas and is linked up, and second combustion exhaust is in charge of 6693, the second combustion exhaust exhaust outlet 608, the second accumulation of heat chamber 606 and second combustion chamber 601 constitutes same path.

In addition; Shown in figure 14; This example comprises that also gas reversing system unit 906 is used for rotation reversing motor 663, air blower 664, gas fan 665, exhaust gas fan 666 controls; Reversing system electric controller 906 links with upper industry control center 90 again; Certainly from electric control theory, rotation reversing motor 663, air blower 664, gas fan 665, exhaust gas fan 666 also can directly receive 90 controls of industry control center in this example, so the restriction that gas reversing system unit 906 does not constitute this routine protection domain is set here.

Like Fig. 1, Fig. 5-1 and Fig. 2～shown in Figure 5, the heating means of outer combustion gas heating unit 64 are:

(1) upward dish 661 rotation on lower wall 662 of rotation reversing motor 663 drives of gas reversing system 66, air is responsible for 667 and first air and is in charge of 6671 connections, and the air person in charge 667 and second air is in charge of 6673 and is in dissengaged positions; Simultaneously, coal gas is responsible for 668 and first gas manifold 6681 and also is connected, and coal gas is responsible for 668 and second gas manifold, 6683 dissengaged positions; Meanwhile, combustion exhaust is responsible for 669 and is in charge of 6691 with first combustion exhaust and also cuts off mutually, and the corresponding combustion exhaust person in charge 669 and second combustion exhaust is in charge of 6693 and is in the state of being connected;

(2) air blower 664 with air blast that air is responsible for 667, air successively through air pipe connecting 6672, first air be in charge of 6671, the first air bustle pipe 6674, the first air admission arm 627 enters into the first accumulation of heat chamber 626, the heat that utilizes first heat storage 623 to discharge heats the back to air and gets in first combustion chamber 621; Simultaneously; Gas fan 665 blasts the coal gas person in charge 668 with raw gas through obtaining purified gas behind the reclaiming clean; Coal gas gets into arm 622 through coal gas pipe connecting 6682, first gas manifold 6681, the first coal gas bustle pipe 6684, first coal gas successively and gets in first combustion chamber 621 and burn; Meanwhile; Because the combustion exhaust person in charge 669 is in charge of 6691 with first combustion exhaust and is in dissengaged positions mutually; And corresponding combustion exhaust is responsible for 669 and second combustion exhaust and is in charge of 6693 and is in the state of being connected; So the waste gas in first combustion chamber 621 after the gas-fired can only enter into second combustion chamber 601 through the combustion chamber through hole 6251 on outer quirk partition wall 625 tops, again through second heat storage 603 in the second accumulation of heat chamber 606 carry out behind the absorbing and cooling temperature from the second combustion exhaust exhaust outlet 608, the second combustion exhaust bustle pipe 6695, second combustion exhaust be in charge of 6693, combustion exhaust is responsible for 669 and discharges through exhaust gas fan 666;

(3) warp burning after a while; Dish 661 backward rotation on lower wall 662 is gone up in rotation reversing motor 663 drives of gas reversing system 66, and air is responsible for 667 and first air and is in charge of 6671 cut-outs, and the air person in charge 667 and second air is in charge of 6673 and is in on-state; Simultaneously; The coal gas person in charge 668 also cuts off with first gas manifold 6681 mutually, and coal gas is responsible for 668 and second gas manifold, 6683 on-states, meanwhile; Combustion exhaust is responsible for 669 and first combustion exhaust and is in charge of 6691 and also is connected, and the corresponding combustion exhaust person in charge 669 and second combustion exhaust are in charge of 6693 also dissengaged positions mutually;

(4) air blower 664 with air blast that air is responsible for 667, air successively through air pipe connecting 6672, second air be in charge of 6673, the second air bustle pipe 6675, the second air admission arm 607 enters into the second accumulation of heat chamber 606, the heat that utilizes second heat storage 603 in the second accumulation of heat chamber 606 to discharge heats the back to air and gets in second combustion chamber 601; Simultaneously; Gas fan 665 blasts the coal gas person in charge 668 with raw gas through obtaining purified gas behind the reclaiming clean; Coal gas gets into arm 602 through coal gas pipe connecting 6682, second gas manifold 6683, the second coal gas bustle pipe 6685, second coal gas successively and gets in second combustion chamber 601 and burn; Meanwhile; Because the combustion exhaust person in charge 669 and first combustion exhaust is in charge of 6691 and is connected; And corresponding combustion exhaust is responsible for 669 and is in charge of 6693 with second combustion exhaust and is in dissengaged positions mutually, thus in second combustion chamber 601 waste gas after the gas-fired can only combustion chamber through hole 6251 entering first combustion chamber 621 through outer quirk partition wall 625 tops in, again through the first accumulation of heat chamber 626; In first heat storage, 603 absorbing and cooling temperatures after, at last from the first combustion exhaust exhaust outlet 628, the first combustion exhaust bustle pipe 6694, first combustion exhaust be in charge of 6691, combustion exhaust is responsible for 669 and discharges through exhaust gas fan 666.

So; Through hole 6251 gets into second combustion chamber 601 to the waste gas that outer combustion gas heating unit 64 combustion principle are after gas-fired in first combustion chamber 621, to generate from the combustion chamber, through second combustion chamber 601 and the second accumulation of heat chamber 606 in second heat storage 603 to all the other thermal absorptions coolings after discharge.

Otherwise through hole 6251 gets into first combustion chamber 621 to the waste gas that after gas-fired in second combustion chamber 601, generates from the combustion chamber, and first heat storage 603 is discharged after all the other thermal absorptions are lowered the temperature in first combustion chamber 621 and the first accumulation of heat chamber 606.

In sum; This gas two through the gas reversing system advances the mode of operation of the regenerative heat exchange of the mode of operation that outes and regenerative heat exchanger; Realize two groups of combustion heater alternate combustion; Be that the gas reversing system is sent into air, purified gas burning to the combustion chamber of first combustion heater; Hot waste gas after sucking-off is burnt from the combustion chamber of second combustion heater simultaneously, hot waste gas become the relatively low low temperature waste gas of temperature through the second heat storage absorbing and cooling temperature in second regenerative heat exchanger of second combustion heater and discharge; In like manner; The gas reversing system is sent into air, purified gas burning to the combustion chamber of second combustion heater; Hot waste gas after sucking-off is burnt from the combustion chamber of first combustion heater simultaneously, hot waste gas become the relatively low low temperature waste gas of temperature through the first heat storage absorbing and cooling temperature in first regenerative heat exchanger of first combustion heater and discharge; This method of utilizing waste gas residual heat after the gas-fired to add warm air each other; Both played the waste gas residual heat after the gas-fired had been made full use of; Improve the efficiency of combustion of the coal gas in the combustion chamber, can carry out cooling to a certain degree to the waste gas after the gas-fired again, need not consume the external energy; Play energy saving purposes, save the coking cost.

Like Fig. 6, shown in Figure 15, internal combustion heating unit 67 is mainly by some groups of (these routine 3 groups) combustion heater 68,69 and quenching waste gas heaters 63 that structure is identical.

Like Figure 11, shown in Figure 8; 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 the quirk bow 65.

As shown in Figure 8; Internal-quirk 631 mainly by ringwall in the coking chamber 612 with the center ringwall 634 that is positioned at coking chamber ringwall 612 and at least internal-quirk partition wall 635 be divided into main internal-quirk 636 arranged side by side more than at least one group, secondary internal-quirk 637; As shown in Figure 8; 6 main internal-quirks 636 of this example and 6 secondary internal-quirks 637 form 6 groups of internal-quirks 631 altogether side by side.

Shown in figure 11, in the secondary internal-quirk 637 shutoff dividing plate 6371 is set, following shutoff dividing plate 6372 is divided into three sections of upper, middle and lower with 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; Quirk partition wall 635 between secondary internal-quirk 6375 of epimere and the main internal-quirk 636 is provided with waste gas and gangs up hole 6303; The secondary internal-quirk 6375 of epimere is offered hot waste gas exhaust channel 6306 with 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.

Like Figure 11, shown in Figure 8; On the quirk partition wall 635 between secondary internal-quirk 6373 of hypomere and the main internal-quirk 636 quirk is set and gangs up hole 6304; Quirk is ganged up hole 6304 near following shutoff dividing plate 6372 belows; As shown in Figure 8,6 quirks are ganged up hole 6304 and respectively secondary internal-quirk 6373 of 6 hypomeres and main internal-quirk 636 perforations are in the same place.

Shown in figure 11; Center ringwall 634 surrounds centre channel 638; With last shutoff dividing plate 6371 concordant places one channel partition 6382 is set in the centre channel 638; Centre channel 638 is separated into upper and lower two portions, and promptly the lower section forms high temperature combustible exhaust gas admission passage 6383, and top forms buffer zone 6381.

Like Fig. 9, shown in Figure 11; 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 get into hole 639, and ringwall 634 tops in center are provided with the waste gas that connects buffer zone 6381 and main internal-quirk 636 and the secondary internal-quirk 6375 of epimere and get into hole 6301.

Like Figure 11, Figure 10, shown in Figure 9: tonifying Qi circuit 633 is arranged on the 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 the inside that extends upward to the quirk partition wall 635 between major and minor internal-quirk 636,637 below the bar bow 651 of quirk bow 65.

Like Figure 11, shown in Figure 2: 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 down, and the shutoff dividing plate leads to main internal-quirk 636 and the secondary internal-quirk 6373 of hypomere respectively below 6372; Shown in figure 11; Secondary air compensating pipe 6322 also is 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 and last shutoff the dividing plate 6371 concordant or a little higher than shutoff dividing plates 6371 of going up, and leads to main internal-quirk 636.

Like Figure 11, shown in Figure 7; The secondary internal-quirk 6374 in stage casing forms the independent gas combustion chamber of relative closure; The secondary internal-quirk 6374 in a last stage casing connects into relevant one group with the secondary internal-quirk 6374 in next bar stage casing of next-door neighbour through chamber passage 6305; Chamber passage 6305 below last shutoff dividing plate 6371 and from pass the main internal-quirk 636 between next bar stage casing pair internal-quirk 6374 of secondary internal-quirk 6374 in stage casing and next-door neighbour; As shown in Figure 7,6 secondary internal-quirks 6374 in stage casing connect into 3 groups through 3 chamber passages 6305.

Like Figure 11, Fig. 6, shown in Figure 7; The secondary internal-quirks 6374 in two stage casings in the secondary internal-quirk 637 (be upper and lower shutoff dividing plate 6371, between 6372) are provided with the identical association of one group of structure the 3rd combustion heater 68, the 4th combustion heater 69; First burning heater 62 of its structure and combustion principle and above introduction, second burning heater 60 are almost completely identical, comprise that also the 3rd combustion heater 68 comprises that the 3rd combustion chamber 681, the 3rd coal gas get into arm 682, the 3rd accumulation of heat chamber 686, the 3rd heat storage 683, the 3rd air admission arm 687 and the 3rd combustion exhaust exhaust outlet 688.

Like Figure 11, shown in Figure 6, need explanation different be that the 3rd combustion chamber 681 of the 3rd burning heater 68 is the secondary internal-quirks 6374 in stage casing, promptly by upper and lower shutoff dividing plate 6371, airtight relatively gas-fired quirk between 6372.

Like Figure 11, Figure 10, shown in Figure 9: the 3rd coal gas gets into arm 682 and below the bar bow 651 of quirk bow 65, passes to extend upward through quirk partition wall 635 inside and lead to the 3rd combustion chamber 681 (being the secondary internal-quirk 6374 in stage casing); The 3rd accumulation of heat chamber 686 is arranged on the body of heater 91 that bar bends 651 belows; The 3rd heat storage 683 places the 3rd accumulation of heat chamber 686; The 3rd accumulation of heat chamber 686 1 ends pass below the bar bow 651 of quirk bow 65 through 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 the 3rd air admission arm 687 and the 3rd combustion exhaust exhaust outlet 688 respectively.

In like manner, the 4th combustion heater 69 structures are intact identical with the 3rd combustion heater 68, repeat no more here, and wherein the 4th combustion chamber 691 is connected through chamber passage 6305 with the 3rd combustion chamber 681 and constituted related one group (shown in Figure 7).

Wherein, Shown in Fig. 5-1; The 3rd coal gas of the 3rd combustion chamber 681 of the 3rd burning heater 68 gets into arm 682, the 3rd air admission arm 687 and the 3rd combustion exhaust exhaust outlet 688 and is in charge of 6671, first combustion exhaust through the first coal gas bustle pipe 6684, the first air bustle pipe, 6674, the first combustion exhaust bustle pipes 6694 and first gas manifold 6681, first air respectively and is in charge of 6691 and communicates.

Shown in Fig. 5-1, the 4th coal gas of the 4th combustion chamber 691 of the 4th burning heater 69 gets into arm 692, the 3rd air admission arm 697 and the 3rd combustion exhaust exhaust outlet 698 and is in charge of 6673, second combustion exhaust through the second coal gas bustle pipe 6685, the second air bustle pipe 6675, the second combustion exhaust bustle pipe 6695 and second gas manifold 6683, second air respectively and is in charge of 6693 and communicates.

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

These routine internal combustion heating unit 67 method principles are that the secondary internal-quirk 6375 of epimere is that the high temperature combustible exhaust gas that utilizes dry coke quenching to produce carries out tonifying Qi burning heating with secondary internal-quirk 6373 of hypomere and main internal-quirk 636, and the secondary internal-quirk 6374 in stage casing is the purified gas burning heating that utilize in addition behind the raw gas reclaiming clean.

These routine internal combustion heating unit 67 methods are: (1), get into from the high temperature combustible exhaust gas admission passage of centre channel 638 bottoms 6383 when the high temperature combustible exhaust gas; Getting into hole 639 through combustible exhaust gas gets in main internal-quirk 636 and the secondary internal-quirk 6373 of hypomere; The high temperature combustible exhaust gas temperature that has just got into is higher generally all at 1000 ℃～1100 ℃; But along with waste gas externally acting heat radiation of rising in the secondary internal-quirk 6373 of main internal-quirk 636 and hypomere, temperature can reduce;

(2), at this moment go into air for the benefit in main internal-quirk 636 and the secondary internal-quirk 6373 of hypomere through a blowdown pipe 6321; Thereby make the high temperature combustible exhaust gas obtain airborne oxygen burning; The amount of the combustible gas in the high-temperature combustible gas body is certain after all, is not enough to the heat and the temperature that provide coking chamber 61 coal cracking required;

(3) so; When passing through quirk through the waste gas after the 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; Mix rising in main quirk 636 with high-temperature combustible gas body in the main internal-quirk 636 and waste gas after burning; Along with mixed high-temperature combustible gas body and waste gas after burning can provide heat and externally acting for the coal cracking in the coking chamber 61 by ringwall 612 in through coking chamber in uphill process, temperature can reduce gradually;

(4) so need to get into short covering gas through secondary air compensating pipe 6322 once more in the middle and upper part of main internal-quirk 636; Make the further burning again of mixed high-temperature combustible gas body and waste gas after burning; This provides required heat and temperature not only for coking chamber 61 coal cracking; And the high-temperature combustible gas body is fully burnt, improve high-temperature combustible gas work by combustion efficient;

(5), in addition; Owing in the middle of the secondary internal-quirk 6375 of main internal-quirk 636 and epimere, have buffer zone 6381; Ringwall 634 tops in center are provided with the waste gas that connects buffer zone 6381 and main internal-quirk 636 and the secondary internal-quirk 6375 of epimere and get into hole 6301; Quirk partition wall 635 between the secondary internal-quirk 6375 of main internal-quirk 636 and epimere is provided with waste gas and gangs up hole 6303; Connect fully each other between the secondary internal-quirk 6375 of each bar master internal-quirk 636 and epimere; Make the waste gas after burning of tonifying Qi for the second time to mix fully mutually, belong to and reach samming between the secondary internal-quirk 6375 of main internal-quirk 636 and epimere and all press, isostatic heat and temperature are provided for the coal cracking on whole coking chamber 61 tops;

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

(7), meanwhile, in order to remedy the quantity not sufficient of the combustible gas in the high-temperature combustible gas body, be not enough to provide the required heat of coking chamber 61 coal cracking and the defective of temperature; And can making full use of to the raw gas that produces in the coal cracking process; Provide raw gas through the burning of the purified gas behind the reclaiming clean for the 3rd combustion chamber 681 and the 4th combustion chamber 691 of the 3rd combustion heater 68, the 4th combustion heater 69, promptly in the secondary internal-quirk 637 in stage casing, add heat, enough heat and temperature are provided not only for coking chamber 61 coal cracking; Improved simultaneously the utilization ratio of raw gas again; Minimizing is discharged in atmosphere, avoids atmospheric pollution, has protected environment.

The burnt upgrading of second joint

Because coal carries out the coke that pyrolysis forms afterwards in coking chamber, there is the inequality of being heated, the inhomogenous situation of coke briquette grain size; Preferably certain temperature and time are provided to coke; Make between the coke fully to contact, carry out heat passagely each other, this just needs burnt modifying apparatus 610.

Like Figure 12, Figure 11, Fig. 9, shown in Figure 15; Burnt modifying apparatus 610; Be arranged at and be positioned in the body of heater on the 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 the combustible exhaust gas that connects high temperature combustible exhaust gas admission passage 6383 and main internal-quirk 636, the secondary internal-quirk 6373 of hypomere and get into hole 639.

In addition; As shown in Figure 1: body of heater 91 exterior walls are provided with burnt upgrading temperature monitoring hole 6101; Burnt upgrading temperature monitoring hole is provided with a burnt upgrading thermometer 6012 in 6101 holes; Shown in figure 14, industry control center 90 is electrically connected with burnt upgrading thermometer 6012, and the burnt upgrading temperature signal of the upgrading thermometer 6012 of focusing is automatically monitored.

The method that this burnt modifying apparatus carries out upgrading is: outside body of heater exterior wall by the thermal insulation fire-resistant material is incubated; Inside then gets into hole 639 with the high temperature combustible exhaust gas from combustible exhaust gas and gets into main internal-quirk 636 bottoms, 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 that has particularly just got into just is fit to burnt upgrading between 1000 ℃～1100 ℃; Make coke in burnt upgrading chamber, retain certain hour, fully contact between the coke briquette grain, carry out heat passagely each other, reach evenly purpose of coke button size.

The 3rd joint quirk bow

Like Figure 11, shown in Figure 10; Because quirk partition wall 635, the center ringwall 634 of ringwall 612 and internal combustion heating unit 67 all are arranged in the furnace chamber in the coking chamber; Need quirk bow 65 for it provides support, the laying of various pipelines being provided for internal combustion heating unit 67 again simultaneously is like Figure 11, shown in Figure 10; Quirk bow 65 is arranged in the furnace chamber of coking chamber 61, internal combustion heating unit 67, burnt modifying apparatus 610 belows; Mainly comprise some bar bow 651, fiery bow center ringwall 652, ringwall 652 middle parts, fiery bow center form high temperature combustible exhaust gas passage 653, and bar bends 651 1 ends and is fixed on the fiery bow center ringwall 652; The other end is fixed on the body of heater 91; Bar bow 651 centers on ringwall 652 centers, the fiery bow center radial layout of scattering in interval at a certain angle, and the fire bow 651 in this example is 12 bows, and quantity is consistent with major and minor internal-quirk 636,637 sums of internal combustion heating unit 67.

Like Figure 11, shown in Figure 10; Article one, in the body of wall of fire bow 651 the extension passage 6861 that the 3rd coal gas gets into arm 682 and the 3rd accumulation of heat chamber 686 is set; The blowdown pipe 6321, the secondary air compensating pipe 6322 that are provided with in the body of wall of another tightly adjacent fire bow 651; Provide convenience for the pipeline laying of internal combustion heating unit 67, be set up in parallel the extension passage 6861 that 6 article of the 3rd coal gas gets into arm 682 and the 3rd accumulation of heat chamber 686 respectively in the body of wall of 6 fire bows 651,6 blowdown pipes 6321, the secondary air compensating pipe 6322 that are set up in parallel respectively in the body of wall of 6 fire bows 651 in addition; Make the various conduit arrangements of internal combustion heating unit 67 orderly, be unlikely to interfere.

The 4th joint dry coke quenching

Coke temperature through behind the upgrading is higher, generally all at 1000 ℃～1100 ℃, need cool off to make things convenient for to high temperature coke and carry and storage, needs the dried device 7 that puts out.

Like Figure 12, shown in Figure 13, the dried device 7 that puts out is arranged on quirk and bends 65 belows, comprises high temperature coke quencher 71, 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 high temperature coke quencher 71 and the low temperature coke quencher 72, and quenching bridge bow 73 comprises bridge bow 731, wind assembling set 74, the dried circuit 76 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc., the dried pipe 77 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc.; Article 6, the bridge bow is divided into spoke shape layout with high temperature coke quencher 71 with 72 centers of low temperature coke quencher at an angle in the middle of the dried 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 semisphere blast cap 78, and the lower openings 79 of wind assembling set 74 is towards low temperature coke quencher 72; The dried pipe 77 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc. is arranged in the bridge bow 731, and dried pipe 77 1 ends that relieve dizziness, high fever, infantile convulsions, epilepsy, etc. lead to wind assembling set 74, and the other end leads to the dried circuit 76 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc., and the dried circuit 76 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc. links through blast pipe 761 and quenching exhaust gas fan 75; Bottom opening 721 places of low temperature coke quencher 72 are provided with the valve 70 that discharges of the coke.

Shown in figure 12, on the exterior wall 91 of body of heater, be provided with the quenching temperature monitoring hole 711 of leading to high temperature coke quencher 71, quenching temperature monitoring hole is provided with quenching thermometer 712 in the hole.

Shown in figure 14; Quenching thermometer 712, quenching exhaust gas fan 75 and the valve 70 that discharges of the coke are electrically connected with industry control center 90; 90 pairs of quenching exhaust gas fans in industry control center 75 are controlled with the valve 70 that discharges of the coke automatically, monitor through 712 pairs of quenching temperature of quenching thermometer.Quenching thermometer 712, quenching exhaust gas fan 75 and the valve 70 that discharges of the coke are electrically connected with industry control center 90 through the dried Setup Controller 907 that puts out, and certainly from electric control theory, the dried Setup Controller 907 that puts out does not constitute the restriction to this routine protection domain in this example.

The dried method of utilizing low-temperature burning waste gas to carry out dry coke quenching of putting out device 7 of this example is:.

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

(2) utilize quenching exhaust gas fan 75 that low temperature waste gas is blasted in the wind assembling set Room 74 through blast pipe 761, the dried circuit 76 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc., the dried pipe 77 that relieves dizziness, high fever, infantile convulsions, epilepsy, etc. successively, low temperature waste gas converges in wind assembling set Room 74, because wind assembling set 74 adopts particular structure; The blast cap 78 at top is semisphere, and the middle part chamber is inversed taper platform shape structure, thus low temperature waste gas can be from lower openings 79 blowout and going out; Be blown in the low temperature coke quencher 72; Upwards seal in high temperature coke quencher 71 again, 71 neutralizations of high temperature coke quencher are lowered the temperature from the coke that high temperature coke quencher 71 falls to low temperature coke quencher 72, this example adopts air-cooled form STRENGTH ON COKE to lower the temperature; So be referred to as dried putting out

(3) in addition, the dried device 7 that puts out of this example also can produce a certain amount of high-temperature combustible gas body dried putting out in the process, because, contain the high temperature coke that a spot of moisture content runs into behind the burnt upgrading in one of which, the low temperature waste gas chemical reaction can take place, produce some inflammable gass; Two, also there is the not clean-burning inflammable gas of part in low temperature waste gas itself; Three, the also residual a part of inflammable gas of the high temperature coke behind the burnt upgrading itself; These inflammable gass upwards get into the high temperature combustible exhaust gas passage 653 at ringwall 652 middle parts, fiery bow center, thereby the major and minor quirk 636,637 of the internal combustion heating unit 67 of coal supply pyrolysis oven provides source of the gas.

The low temperature waste gas of being lifted in this example is meant the outer combustion gas heating unit of the purified gas process coal cracking stove behind the raw gas reclaiming clean that produces in the coal cracking process and the waste gas that the burning of the combustion heater in internal combustion heating unit back produces; Become cryogenic gas behind the heat storage absorbing and cooling temperature of this waste gas in the accumulation of heat chamber; Trunk puts out device and is also advantageous in that utilizing the incombustibility of combustion exhaust own to replace having now uses inert nitrogen to carry out dried putting out; Equipment is simple, and is with low cost, remarkable in economical benefits.This example is compared with the traditional wet quenching, more can a large amount of water-gas not take place because big 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 that produces in the coal cracking process again simultaneously.

The 5th joint Continuous coking device

Comprehensively above-mentioned, a big advantage of this coal cracking stove is the ability Continuous coking, replaces traditional coking at intermittence or native nest coking, compares traditional coal-coking process, has incomparable advantage.

Claims (1)

1. gas commutation method that coal cracking stove combustion heater is used; It is characterized in that: the employed equipment of present method comprises dish, lower wall, rotation reversing motor, air blower, gas fan, exhaust gas fan; Described lower wall is connected to an air person in charge respectively and first air is in charge of, second air is in charge of; Coal gas is responsible for and first gas manifold, second gas manifold; Combustion exhaust is responsible for and second combustion exhaust is in charge of, first combustion exhaust is in charge of, and wherein, second combustion exhaust is in charge of to be in charge of to be in charge of with first air with first combustion exhaust and is in charge of with second air and the setting of first gas manifold and second gas manifold is just exchanged; The described dish of going up rotates and is fitted in the lower wall top, on coil respectively that correspondence is provided with air pipe connecting, coal gas pipe connecting, combustion exhaust pipe connecting, described rotation reversing motor and last dish are in transmission connection, present method performing step is:

(1), drive to go up dish when the rotation reversing motor and on lower wall, rotate, air is responsible for first air and is in charge of when connecting, coal gas is responsible for first gas manifold and also is connected; Meanwhile, corresponding combustion exhaust is responsible for to be in charge of to be in second combustion exhaust and is connected; Air will be blasted to be in charge of through air pipe connecting and first air successively after air is responsible for by air blower and see off; Simultaneously; Raw gas will be seen off through coal gas pipe connecting first gas manifold after purified gas will be blasted the coal gas person in charge by gas fan through obtaining behind the reclaiming clean successively; Meanwhile, corresponding combustion exhaust is sucked by exhaust gas fan and is responsible for through the exhaust gas fan discharge through the second combustion exhaust pipe connecting and combustion exhaust successively after second combustion exhaust is in charge of;

(2), when driving, the rotation reversing motor goes up dish backward rotation on lower wall; Air is responsible for second air and is in charge of when being in on-state; Coal gas is responsible for and the second gas manifold on-state, and meanwhile, corresponding combustion exhaust is responsible for and first combustion exhaust also is in charge of and is connected; Air will be blasted to be in charge of through air pipe connecting and second air successively after air is responsible for by air blower and see off; Simultaneously; Raw gas will be seen off through coal gas pipe connecting second gas manifold after purified gas will be blasted the coal gas person in charge by gas fan through obtaining behind the reclaiming clean successively; Meanwhile, corresponding combustion exhaust is sucked by exhaust gas fan and is responsible for through the exhaust gas fan discharge through the first combustion exhaust pipe connecting and combustion exhaust successively after first combustion exhaust is in charge of.

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