WO2014166396A1

WO2014166396A1 - Water/gas reaction apparatus for pyrolysis and gasification of coal gangue

Info

Publication number: WO2014166396A1
Application number: PCT/CN2014/075020
Authority: WO
Inventors: 王新民
Original assignee: 山西鑫立能源科技有限公司
Priority date: 2013-04-10
Filing date: 2014-04-09
Publication date: 2014-10-16
Also published as: CN103194268B; CN103194268A

Abstract

Disclosed is a water/gas reaction apparatus for pyrolysis and gasification of coal gangue, comprising a pyrolysis and gasification chamber, a material cooling apparatus, and a steam-generating apparatus. The material cooling apparatus comprises a high temperature cooling chamber, a low temperature cooling chamber, and a cooling chamber bridging arch. The top part of the high temperature cooling chamber is in communication with the bottom part of the pyrolysis and gasification chamber. The cooling chamber bridging arch is arranged between the high temperature cooling chamber and the low temperature cooling chamber and comprises a bridging arch, a steam-collecting chamber, and a steam entry pipe. A lower part opening of the steam-collecting chamber in the middle part of the bridging arch faces the low temperature cooling chamber. One end of the steam entry pipe leads to the steam-collecting chamber. The steam-generating apparatus comprises an annular hollow metal chassis, a steam drum, a steam drum input pipe, and a steam drum output pipe. A furnace water drum is formed within the annular hollow metal chassis. A steam drum input pipe of the furnace body water drum is in communication with the steam drum. A steam drum output pipe of the steam drum is in communication with another end of the steam entry pipe. The present invention utilizes the residual heat of a solid product from the pyrolysis and gasification of coal gangue to generate superheated steam, thus facilitating a water/gas reaction.

Description

Coal gangue pyrolysis gasification water gas reaction device

技术领域 Technical field

The invention relates to a technology for pyrolysis gasification of coal gangue, in particular to a water gas reaction device for pyrolysis gasification of coal gangue.

背景技术 Background technique

Coal gangue--the stone selected from the raw coal is the waste residue of the coal preparation plant. It is not easy to handle. China has hundreds of millions of tons of coal gangue that cannot be used every year, and it continues to discharge every year. 100Mt not only accumulates land, but also spontaneously pollutes air or causes fire, causing serious environmental pollution.

Due to billions of years of coalification, coal gangue contains 20-30% of carbon, oil and gas, of which oil and gas account for 11-15%, carbon accounted for 7-15%. Pyrolysis and gasification of coal gangue to obtain oil and gas products and 70-80% Solid product (components of silicon dioxide, aluminum oxide, ferric oxide, titanium dioxide, calcium oxide, magnesium oxide, potassium oxide, sodium oxide, phosphorus pentoxide, manganese oxide, sulfur trioxide, etc.) Aluminum clinker clinker) has economic value and social benefits.

The inventors have long studied the physical properties of coal gangue and the pyrolysis gasification process of high temperature coal, and innovated a new set of high-temperature pyrolysis gasification integrated process and device for coal gangue.

发明内容 Summary of the invention

The invention provides a water gas reaction device for pyrolysis and gasification of coal gangue, which uses the waste heat of the solid product obtained by pyrolysis and gasification of coal gangue to generate water vapor, and then directly contacts the solid product with water vapor to generate superheated steam to promote The water gas reaction is more complete, while saving energy, reducing the temperature of the solid product, and facilitating the discharge of solid products.

The technical solution adopted to achieve the above objectives is:

a coal gas pyrolysis gasification reaction device comprising a pyrolysis gasification chamber, a material cooling device, and a steam generating device; The pyrolysis gasification chamber is the same chamber as the pyrolysis gasification chamber of the coal gangue pyrolysis device, and the pyrolysis gasification chamber is located above the central support bow; the material cooling device and the steam generating device are located below the central support bow, Material cooling device Including high temperature cooling chamber, low temperature cooling chamber, cooling chamber bridge bow, the top of the high temperature drop greenhouse is connected to the bottom of the pyrolysis gasification chamber. The high temperature drop greenhouse and the low temperature drop greenhouse are arranged above and below, and the greenhouse bow is disposed between the high temperature drop greenhouse and the low temperature drop greenhouse, and the descending greenhouse bridge bow includes a bridge bow, a steam collecting chamber, and a steam entering the through pipe; Forming a steam collecting chamber, the lower opening of the steam collecting chamber faces the low temperature falling greenhouse, the steam entering the connecting tube is disposed in the bridge bow, the steam enters the one end of the through tube and leads to the collecting chamber, and the other end extends out of the furnace; The steam generating device comprises an annular hollow metal box body, a steam bag and a steam drum inlet pipe, a steam drum output pipe, the annular hollow metal box body is installed at the bottom of the furnace body, and the inner ring cavity of the annular hollow metal box body is connected to the material cooling device. Low temperature cooling In the lower part of the chamber, a ring-shaped hollow metal box body is formed with a relatively sealed water body for storing water, the water body of the furnace body is connected with an inlet pipe and a steam drum inlet pipe, the inlet pipe is connected with the water storage tank, and the steam inlet pipe and the steam are connected. Package phase, steam package The steam drum outlet pipe communicates with the steam of the material cooling device at the other end of the pipe.

The descending greenhouse bow of the material cooling device is arranged in a radial shape at a certain angular interval between the high temperature falling greenhouse and the low temperature falling greenhouse shaft center.

The collecting chamber of the greenhouse lowering bow of the material cooling device is a cylindrical chamber, and a hemispherical hood is arranged at the top of the collecting chamber.

The inner ring cavity of the annular hollow metal casing of the steam generating device has a large upper and lower funnel shape.

The invention utilizes the waste heat of the solid product with relatively low temperature after pyrolysis and gasification of coal gangue to carry out heat transfer to generate water vapor, and then utilizes water vapor and high temperature. The solid product directly contacts the superheated steam to reach the required temperature of the water gas reaction, promotes the water gas reaction more fully, saves energy consumption, lowers the temperature of the solid product, facilitates discharge of solid products, and prevents damage of related equipment.

附图说明 DRAWINGS

The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

Figure 1 is a schematic view of a coal gangue pyrolysis gasification furnace of the present invention;

Figure 2 is a schematic view of a gas commutator of the present invention;

Figure 3 is a schematic view of the upper plate of the gas commutator of the present invention;

Figure 4 is a schematic view of the lower tray of the gas commutator of the present invention;

Figure 5 is a cross-sectional view taken along line c-c of Figure 3;

Figure 6 is a schematic view showing the connection of the gas commutator and the gas heater pipe network of the present invention;

Figure 7 is a schematic cross-sectional view of the t-t in Figure 1;

Figure 8 is a schematic cross-sectional view taken along line u-u of Figure 1;

Figure 9 is a schematic cross-sectional view taken along line v-v of Figure 1;

Figure 10 is a schematic view of the central support bow of the present invention (a schematic cross-sectional view taken at x-x in Figure 1);

Figure 11 is a view of the steam passage of the present invention (a schematic cross-sectional view at y-y in Figure 1);

Figure 12 is a schematic view of a steam packet line of the present invention (a schematic cross-sectional view taken at z-z in Figure 1);

Figure 13 is a schematic view showing the electrical connection of the industrial control center of the present invention.

具体实施方式 detailed description

Specific examples of the comprehensive utilization of the coal gangue pyrolysis gasification of the present invention are mainly described below.

Part I Coal Gangue Particle Size Control

The coal gangue is processed into a particle size of 0 to 20 mm, and the coal gangue scrap is dehydrated and dried in this particle size range, and the drying is sufficient, and the dehydration efficiency is high. However, this does not constitute a limitation on the coal gangue required for the present invention.

Part II Coal gangue conditioning and dehydration

The hot exhaust gas generated after the combustion of the net gas produced by the high-temperature pyrolysis of coal gangue and the waste gasification produced by the water gas reaction is used for the crushed The coal gangue pellets are subjected to humidity conditioning and dewatering before being placed in the furnace.

In order to keep the environment clean and tidy, after the humidity is dehydrated, the exhaust gas is discharged through the water and purified.

Part III High temperature pyrolysis gasification of coal gangue (pyrolysis heating, water gas generation)

Section 1 High temperature pyrolysis heating of coal gangue

As shown in Fig. 1, the coal gangue pyrolysis device 6 is disposed in the middle of the furnace body 91, mainly including a pyrolysis gasification chamber 61 and an external gas heating device. 64, internal gas heating device 67, gas reversing device 66, central support bow 65; as shown in Figure 8, Figure 9: pyrolysis gasification chamber 61 from the refractory heat conductive material inner and outer ring wall 612, 611 constitutes an annular space around the outer periphery of the pyrolysis gasification outdoor wall 611 ring for external gas heating device 64, pyrolysis gasification indoor ring wall 612 ring for internal gas heating device 67 The external gas heating device 64 is mainly composed of a plurality of groups (the 9th group of the present example) having the same structure of the first gas heater 62 and the second gas heater 60 (see FIG. 1 and FIG. 2), as shown in FIG. Figure 8 and Figure 9: Because the pyrolysis gasification chamber 61 has a high height, the external gas heating device 64 is mainly divided into upper, middle and lower sections, and each section has 9 sets of first gas with the same structure. Heater 62, the second gas heater 60, the internal gas heating device 67 is mainly divided into upper and lower two-stage heating, each section has 6 sets of the same phase of the third phase gas heater 68, the fourth gas heater 69 Composition.

As shown in FIG. 1 and FIG. 9, the first gas heater 62 mainly includes a first combustion chamber 621 and a first gas inlet branch pipe. 622 and the first heat storage heat exchanger 624, the first gas inlet branch pipe 622 passes through the outer wall of the furnace body 91 to the first combustion chamber 621.

As shown in Fig. 1 and Fig. 9, the first combustion chamber 621 is made of a refractory material. The outer wall, and the refractory and thermally conductive material are made into a pyrolysis gasification outdoor ring wall 611 and an outer fire channel partition wall 625 to form a relatively closed gas burning fire channel.

As shown in FIG. 1 and FIG. 9, the first heat storage heat exchanger 624 includes a first heat storage chamber 626 and a first heat storage body 623. The first air entering branch pipe 627 and the first combustion exhaust gas exhausting branch pipe 628; the first heat accumulating chamber 626 is disposed in the outer wall of the furnace body 91, and the first heat accumulator 623 is disposed in the first heat accumulating chamber 626 The first regenerator 626 has one end leading to the bottom of the first combustion chamber 621, and the other end is connected with a first air inlet branch 627 and a first combustion exhaust gas exhaust branch 628, respectively.

As shown in FIG. 9, a first one-way air valve 629 is disposed between the first air inlet branch 627 and the first heat storage chamber 626. The first one-way air valve 629 allows air to flow from the first air inlet pipe 627 and the first heat storage chamber 626 into the first combustion chamber 621; the first combustion exhaust gas discharge branch pipe 628 and the first heat storage chamber A first one-way exhaust valve 620 is disposed between 626, and the first one-way exhaust valve 620 allows the gas combustion exhaust gas to flow from the first combustion chamber 621 through the first heat storage chamber 626. Finally, it is discharged from the first combustion exhaust gas discharge branch pipe 628 (of course, using the gas reversing device 66 as described below, when the air main pipe 667 is connected to the first air pipe 6671, the air main pipe 667 At the same time as the second air manifold 6673 is cut off; at the same time, the combustion exhaust gas main 669 is also disconnected from the first combustion exhaust gas branch 6691, and the corresponding combustion exhaust gas main pipe 669 and the second combustion exhaust gas main pipe are separated. The 6693 is in phase connection and can function as a substitute for the first one-way air valve 629 and the first one-way exhaust valve 620).

Similarly, as shown in FIG. 9 : the second gas heater 60 having the same structure mainly includes a second combustion chamber 601 and a second gas inlet branch pipe. 602 and a second heat storage heat exchanger 604.

As shown in Figure 9, the second combustion chamber 601 is made of refractory material, the outer wall of the 91, and the refractory and heat-conducting material is made into a pyrolysis gasification outdoor ring wall. 611 and the outer fire door partition 625 enclose a relatively closed gas burning fire.

As shown in Fig. 1 and Fig. 9, the second gas inlet branch pipe 602 passes through the outer wall of the furnace body 91 to the first combustion chamber 601.

As shown in FIG. 9, the second heat storage heat exchanger 604 includes a second heat storage chamber 606, a second heat storage body 603, and a second air inlet branch pipe. 607 and a second combustion exhaust gas discharge branch 608, the second heat storage chamber 606 is disposed in the outer wall of the furnace body 91, and the second heat storage body 603 is disposed in the second heat storage chamber 606, and the second heat storage chamber 606 One end leads to the bottom of the second combustion chamber 601, and the other end is respectively connected with a second air inlet branch 607 and a second combustion exhaust gas discharge branch 608, and the second air enters the branch pipe 607 and the second heat storage chamber 606. Between the second one-way air valve 609 is provided, the second one-way air valve 609 allows air to flow from the second air inlet pipe 607 and the second heat storage chamber 606 into the second combustion chamber 601; A second one-way exhaust valve 600 is disposed between the second combustion exhaust gas discharge branch 608 and the second heat storage chamber 606, and the second one-way exhaust valve 600 allows the gas to burn the exhaust gas from the second combustion chamber 601. It flows through the second regenerator 606 and is finally discharged from the second combustion off-gas discharge branch 608 (of course, using the gas reversing device 66 as described below, when the air main 667 and the first air sub-pipe 6671 When cut, the air main pipe 667 is connected to the second air pipe 6673, and at the same time, the combustion exhaust gas main pipe 669 and the first combustion exhaust gas pipe 6691 are also connected, and the corresponding combustion exhaust gas main pipe 669 It is also cut off from the second combustion exhaust pipe 6693; it can function as a substitute for the second one-way air valve 609 and the second one-way exhaust valve 600).

As shown in FIG. 1 and FIG. 8, the outer combustion passage partition wall 625 between the first combustion chamber 621 and the immediately adjacent second combustion chamber 601 The top of the furnace is provided with a combustion chamber through hole 6251. The combustion chamber through hole 6251 connects the first combustion chamber 621 and the immediately adjacent second combustion chamber 601 to form a group. In this example, the external gas heating device 64 There are 18 external fire passage partition walls 625 partition walls, forming 9 groups of associated combustion groups; in addition, as shown in Figure 1; because the pyrolysis gasification chamber 61 has a high height, the external gas heating device 64 It is mainly divided into upper, middle and lower sections, and each section has 9 sets of the same structure and is associated with the first gas heater 62 and the second gas heater 60.

As shown in Figure 1: Each combustion chamber on the outer wall of the furnace body 91 is also provided with a combustion chamber temperature monitoring hole 6201 and a combustion chamber observation hole. 6202, combustion chamber observation hole 6202 facilitates the technician to visually observe the gas combustion of each combustion chamber. The combustion chamber temperature monitoring hole 6201 is provided with a combustion chamber temperature table 6203. Used to monitor the temperature of the combustion chamber to facilitate the evaluation of the coal pyrolysis process.

As shown in Figure 13, the combustion chamber temperature meter 6203 is connected to the industrial control center 90, and the industrial control center 90 automatically collects the combustion chamber temperature table. Temperature data for 6203.

As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, the gas reversing device 66 includes the upper plate 661 and the lower plate 662. Rotating reversing motor 663, air fan 664, gas fan 665, exhaust fan 666, lower plate 662 are respectively connected with an air main pipe 667 and a first air pipe 6671 , a second air pipe 6673 , a gas main pipe 668 and a first gas pipe 6681 , a second gas pipe 6683 , a combustion exhaust pipe 669 and a second combustion exhaust pipe 6693 a first combustion exhaust pipe 6691, wherein the second combustion exhaust pipe 6693 and the first combustion exhaust pipe 6691 and the first air pipe 6671 and the second air pipe 6673 The setting of the first gas pipe 6681 and the second gas pipe 6683 is just reversed (Figure 3, Figure 4, Figure 6).

As shown in Figure 3, Figure 4, Figure 5, Figure 6: The upper plate 661 fits over the lower plate 662, the upper plate 661 Correspondingly, an air connection pipe 6672, a gas connection pipe 6682, a combustion exhaust pipe connection pipe 6692, a rotary reversing motor 663 are driven to drive the upper plate 661 at the lower plate 662 The upper and lower reciprocating rotations enable the air main pipe 667 to continuously switch on and off with the first air pipe 6671 and the second air pipe 6673, and the gas main pipe 668 continuously and the first gas pipe 6681 And the second gas pipe 6683 is switched on and off, the combustion exhaust pipe 669 is continuously connected with the second combustion exhaust pipe 6693 and the first combustion exhaust pipe 6691 Switching on and off is performed (as opposed to switching between the first air branch 6671 and the second air branch 6673 and the first gas manifold 6681 and the second gas manifold 6683).

As shown in Fig. 1 and Fig. 6, there are two sets of surrounding pipes on the outer circumference of the furnace body 91, including a first air surrounding pipe 6674, and a first gas surrounding pipe. 6684, a first combustion exhaust pipe 6694; a second air pipe 6675, a second gas pipe 6685, and a second combustion exhaust pipe 6695.

As shown in Fig. 1 and Fig. 6, the first air main pipe 6674 enters the first air pipe 6671 and the first air into the branch pipe 627. Coupling, the first air branch 6671, the first air enclosure 6674, the first air inlet branch 627, the first regenerator 626 and the first combustion chamber 621 form the same passage;

At the same time, the first gas sewer 6684 enters the first gas branch 6681 and the first gas into the branch 622 Connecting, the first gas pipe 6681, the first gas pipe 6684, the first gas inlet pipe 622 and the first combustion chamber 621 form the same passage;

At this time, the first combustion exhaust gas pipe 6694 is the first combustion exhaust gas pipe 6691 and the first combustion exhaust gas discharge pipe branch 628. Connecting, the first combustion exhaust gas branch 6691, the first combustion exhaust gas surrounding pipe 6694, the first combustion exhaust gas discharge branch pipe 628, the first heat storage chamber 626 and the combustion chamber 621 Form the same path.

Similarly, the second air conduit 6675 enters the second air branch 6673 and the second air into the branch 607 Connected, the second air branch 6673, the second air trap 6675, the second air inlet branch 607, the second regenerator 606 and the second combustion chamber 601 form the same passage;

At the same time, the second gas sewer 6685 enters the second gas branch 6683 and the second gas into the branch 602 Connecting, the second gas pipe 6683, the second gas pipe 6685, the second gas entering branch pipe 602 and the second combustion chamber 601 form the same passage;

At the same time, the second combustion exhaust gas conduit 6695 discharges the second combustion gas branch pipe 6693 and the second combustion exhaust gas exhaust pipe branch 608. Connecting, the second combustion exhaust pipe 6693, the second combustion exhaust pipe 6695, the second combustion exhaust gas exhaust pipe 608, the second heat storage chamber 606 and the second combustion chamber 601 Form the same path.

In addition, as shown in FIG. 13, this example further includes a gas reversing device controller 906 for rotating the reversing motor 663 and an air fan. 664, gas blower 665, exhaust fan 666 control, gas commutation device electrical controller 906 is also connected with the upper industrial control center 90, of course, in terms of electrical control principle, this example of the rotary commutation motor 663, air blower 664, gas blower 665, exhaust fan 666 can also be directly controlled by the industrial control center 90, so here set the gas reversing device controller 906 It does not constitute a limitation on the scope of protection of this example.

As shown in Fig. 1, Fig. 2 to Fig. 5, Fig. 6, and Fig. 13, the heating method of the external gas heating device 64 is:

(1) Industrial Control Center 90 Start Rotary Directional Motor 663 Drive Upper Disk 661 Rotate on Lower Disk 662, Air Supervisor 667 is connected to the first air pipe 6671, the air main pipe 667 and the second air pipe 6673 are cut off; at the same time, the gas main pipe 668 and the first gas pipe 6681 Also connected, the gas main pipe 668 and the second gas sub-pipe 6683 are in a cut-off state; at the same time, the combustion exhaust gas main pipe 669 is also cut off from the first combustion exhaust gas pipe 6691, and the corresponding combustion exhaust gas main pipe is also cut off. 669 is in phase connection with the second combustion exhaust pipe 6693;

(2) Industrial Control Center 90 Start air blower 664, gas blower 665, exhaust fan 666; air blower 664 Air is blown into the air main 667, and the air enters the air connecting pipe 6672, the first air pipe 6671, the first air pipe 6674, and the first air entering pipe 627. Entering the first regenerator 626, the air released by the first regenerator 623 is heated to enter the first combustion chamber 621; meanwhile, the gas blower 665 After the waste gas is recovered and purified by chemical production, the net gas is blown into the gas main pipe 668, and the gas enters the gas connection pipe 6682, the first gas pipe 6681, and the first gas pipe 6684. The first gas entering branch pipe 622 enters the first combustion chamber 621 for combustion, and at the same time, because the combustion exhaust gas main pipe 669 and the first combustion exhaust gas pipe are 6691 In the phase cut-off state, the corresponding combustion exhaust gas main pipe 669 and the second combustion exhaust gas main pipe 6693 are in an on state, so that the exhaust gas in the first combustion chamber 621 can only pass through the outer fire passage partition wall 625 The upper combustion chamber through hole 6251 enters the second combustion chamber 601, passes through the second regenerator 606, and passes through the second regenerator 603 in the second regenerator 606. After the endothermic cooling, the second combustion exhaust gas exhaust pipe 608, the second combustion exhaust gas pipe 6695, the second combustion exhaust gas pipe 6693, and the combustion exhaust gas main pipe 669 are discharged through the exhaust gas fan 666;

(3) The set burning time is reached, the industrial control center 90 starts the rotary reversing motor 663 drives the upper plate 661 in the lower plate 662 In the reverse rotation, the air main pipe 667 is disconnected from the first air pipe 6671, and the air main pipe 667 and the second air pipe 6673 are in an ON state, and at the same time, the gas main pipe 668 and the first gas pipe are connected. 6681 is also cut off, the gas main pipe 668 and the second gas pipe 6683 are connected, at the same time, the combustion exhaust gas main 669 and the first combustion exhaust gas pipe 6691 It is also connected, and the corresponding combustion exhaust gas main pipe 669 and the second combustion exhaust gas main pipe 6693 are also cut off;

(4) Air blower 664 Air is blown into the air main 667, and the air enters the air connecting pipe 6672 in sequence. The second air pipe 6673, the second air pipe 6675, and the second air inlet pipe 607 enter the second heat storage chamber 606, and the second heat storage body 603 in the second heat storage chamber 606 is utilized. The released heat heats the air and enters the second combustion chamber 601. At the same time, the gas blower 665 recovers the waste gas and then obtains the net gas into the gas main pipe 668, and the gas enters the gas connecting pipe in turn. 6682, the second gas pipe 6683, the second gas pipe 6685, the second gas entering branch pipe 602 enter the second combustion chamber 601 for combustion, and at the same time, because of the combustion exhaust pipe 669 is connected to the first combustion exhaust gas branch 6691, and the corresponding combustion exhaust gas main pipe 669 and the second combustion exhaust gas main pipe 6693 are in a phase cut state, so the second combustion chamber 601 The exhaust gas after the combustion of the medium gas can only enter the first combustion chamber 621 through the upper combustion chamber through hole 6251 of the outer fire passage partition wall 625, and then passes through the first regenerator chamber 626 and passes through the first regenerator chamber 626. After the first heat accumulator 603 is subjected to heat absorption and cooling, finally, the first combustion exhaust gas discharge branch pipe 628, the first combustion exhaust gas surrounding pipe 6694, the first combustion exhaust gas pipe 6691, and the combustion exhaust gas main pipe 669 Exhaust by the exhaust fan 666, the external gas heating device 64 is based on the principle that the exhaust gas generated after the combustion of the gas in the first combustion chamber 621 enters the second combustion chamber from the combustion chamber through hole 6251. The second heat accumulator 603 in the second combustion chamber 601 and the second regenerator 606 is cooled after the remaining heat absorption, and conversely, the exhaust gas generated after the combustion of the gas in the second combustion chamber 601 is through the combustion chamber through hole. 6251 enters the first combustion chamber 621, and is cooled by the first heat storage body 603 in the first combustion chamber 621 and the first heat storage chamber 606 to cool down the remaining heat absorption.

In summary, the two-in-one operation mode of the gas through the gas reversing device and the heat storage heat exchange operation mode of the regenerative heat exchanger realize the alternating combustion of the two gas heaters associated with the two groups, that is, the gas exchange Feeding air to the combustion chamber of the first gas heater to the combustion chamber, and combusting the hot exhaust gas from the combustion chamber of the second gas heater, and the second heat storage of the hot exhaust gas through the second gas heater The heat absorption and cooling of the second heat storage body in the heat exchanger is changed to a low temperature exhaust gas with a relatively low temperature; similarly, the gas reversing device sends air to the combustion chamber of the second gas heater, and the net gas is burned. At the same time, the hot exhaust gas after combustion is sucked from the combustion chamber of the first gas heater, and the hot exhaust gas is cooled to a relatively low temperature by the first heat storage body in the first heat storage heat exchanger of the first gas heater. The low-temperature exhaust gas is discharged; the method of heating the air by using the waste heat of the exhaust gas after combustion of the gas not only makes full use of the waste heat of the exhaust gas after the combustion of the gas, but also improves the combustion efficiency of the gas in the combustion chamber, and can burn the gas after the gas is burned. The exhaust gas is cooled to a certain extent, without consuming external energy, saving energy and reducing consumption, and saving coal gangue pyrolysis gasification cost.

Through the automatic heating control of the external gas heating device 64, the labor cost is reduced, the control precision of the coal pyrolysis process is improved, and automation is realized.

As shown in Fig. 1 and Fig. 10, the internal gas heating device 67 mainly consists of several groups (the 6 groups of this example) having the same structure of gas heaters 68 69, because the pyrolysis gasification chamber 61 high-height internal gas heating device 67 is mainly divided into two parts, which are mainly divided into upper and lower sections, each of which has 6 sets of associated third gas heaters with the same structure. The fourth gas heater 69 has a composition and a combustion principle which are almost identical to the first combustion heater 62 and the second combustion heater 60 described above, and the third gas heater 68 Also included is a third combustion chamber 681, a third gas inlet branch 682, a third regenerator chamber 686, a third regenerator 683, a third air inlet branch 687, and a third combustion exhaust gas exhaust branch 688. .

As shown in Fig. 1, Fig. 9, and Fig. 10, the third combustion chamber 681 is made of a refractory heat conductive material to be a pyrolysis gasification indoor ring wall 612. And the inner fire lane partition 635 encloses a relatively closed gas burning fire.

As shown in Fig. 1 and Fig. 10, the lower third gas enters the branch pipe 682 from the center support bow 65. The lower portion passes through to the third combustion chamber 681, the third regenerator chamber 686 is disposed on the furnace body 91 below the strip 651, and the third regenerator 683 is disposed in the third regenerator chamber 686. The third regenerator 686 has one end extending from the underside of the strip 651 of the central support bow 65 through the extension passage 6861 to the bottom of the third combustion chamber 681, and the third regenerator 686 The other end is connected to a third air inlet branch 687 and a third combustion exhaust gas outlet branch 688, respectively.

As shown in Fig. 1, Fig. 9, and Fig. 10, the upper third gas enters the branch pipe 682 from the center support bow 65. The lower portion passes through the upper fire passage partition 635 to the third combustion chamber 681, the third regenerator chamber 686 is disposed on the furnace body 91 below the strip 651, and the third regenerator 683 is placed in the third regenerator chamber. In 686, one end of the third regenerator chamber 686 extends from the underside of the strip 651 of the central support bow 65 through the extension passage 6861 through the passage of the fire passage partition 635 to the third combustion chamber 681 At the bottom, the other end of the third regenerator 686 is connected with a third air inlet branch 687 and a third combustion exhaust gas outlet branch 688, respectively.

Similarly, as shown in FIG. 9 and FIG. 10, the fourth gas heater 69 structure and the third gas heater 68 The same is not repeated here, and the fourth combustion chamber 691 and the third combustion chamber 681 are connected to each other through the combustion chamber passage 6305 to form a group (shown in FIG. 1 and FIG. 8).

Wherein, as shown in FIG. 6, the third gas of the third combustion chamber 681 of the third combustion heater 68 enters the branch pipe 682. The third air inlet branch pipe 687 and the third combustion exhaust gas exhaust pipe branch 688 pass through the first gas enclosure pipe 6684, the first air enclosure pipe 6674, and the first combustion exhaust gas enclosure pipe 6694, respectively. It is in communication with the first gas pipe 6681, the first air pipe 6671, and the first combustion exhaust pipe 6691.

As shown in FIG. 1, FIG. 6, and FIG. 10, the fourth gas entering the branch of the fourth combustion chamber 691 of the fourth combustion heater 69 692, the fourth air inlet branch pipe 697 and the fourth combustion exhaust gas discharge branch pipe 698 pass through the second gas enclosure pipe 6685, the second air enclosure pipe 6675, and the second combustion exhaust gas enclosure pipe 6695, respectively. It is in communication with the second gas pipe 6683, the second air pipe 6673, and the second combustion exhaust pipe 6693.

In summary, the combustion principle of the third combustion heater 68 and the fourth gas heater 69 and the above first combustion heater 62 The second combustion heater 60 is almost identical and will not be described again here.

As shown in Figures 1 and 10, the center support bow 65, because of the pyrolysis gasification of the indoor ring wall 612 and the internal combustion heating device 67 The fire channel partitions 635 are all located in the furnace cavity and require a central support bow 65 to provide support while providing various piping for the internal combustion heating unit 67.

As shown in Fig. 1 and Fig. 10, the center support bow 65 is disposed in the pyrolysis gasification chamber 61 and the internal combustion heating device 67. In the lower chamber, The utility model mainly comprises a plurality of strips 651 and a fire bow center ring wall 652. One end of the strip bow 651 is fixed on the fire ring center ring wall 652, the other end is fixed on the furnace body 91, and the strip bow 651 surrounds the center of the fire bow center ring wall 652. Radially scattered at an angular interval, the fire bow 651 in this example is 12 bows, the number and The interrelated third combustion heaters 68 of the internal combustion heating device 67 have the same total number of fourth combustion heaters 69.

As shown in Fig. 1 and Fig. 10, a third gas entering the branch pipe 682 and the third heat storage chamber 686 is arranged in the wall of a fire bow 651. The extension passage 6861, the fourth gas entering the branch wall 692 and the extension passage 6961 of the fourth regenerator chamber 696 disposed in the wall of another adjacent fire bow 651, the internal combustion heating device The pipe laying of 67 facilitates the ordering of the various pipes of the internal combustion heating unit 67 without interference.

Section 2 Water Gas Reaction

Since the temperature of the coal gangue in the pyrolysis gasification chamber is high, the coal gangue is introduced into the water vapor, and the charcoal in the product after the coal gangue pyrolysis meets the superheated steam to react with water gas to form water gas (carbon monoxide and hydrogen).

As shown in Fig. 1, Fig. 10, Fig. 11, the water gas reaction device 7 includes a pyrolysis gasification chamber 61, and a material cooling device 70. , steam generating device 75 .

As shown in Fig. 1, the pyrolysis gasification chamber 61 is located above the central support bow 65, the material cooling device 70, and the steam generating device 75. Located below the center support bow 65.

As shown in Fig. 1 and Fig. 11, the material cooling device 70 is disposed at a lower portion of the furnace body 91, including a high temperature cooling chamber 701. The low temperature cooling chamber 702 and the cooling chamber bridge bow 703; the top of the high temperature falling greenhouse 701 is connected to the bottom of the pyrolysis gasification chamber 61; the high temperature falling greenhouse 701 and the low temperature falling greenhouse 702 Up and down setting, the greenhouse bridge bow 703 is set between the high temperature drop greenhouse 701 and the low temperature drop greenhouse 702, and the greenhouse bow 703 includes the bridge bow 7031, the steam collecting chamber 704, and the steam entering the pipe 707 ; 4 bridge bows 7031 with high temperature drop greenhouse 701 and low temperature drop greenhouse 702 axis center is arranged at a certain angle to form a radial arrangement, the middle of the bridge 7031 forms a steam collecting chamber 704 , the steam collecting chamber 704 is a cylindrical chamber. The top of the steam collecting chamber 704 is provided with a hemispherical hood 708. The lower opening of the steam collecting chamber 704 faces the low temperature falling greenhouse 702. The steam enters the through tube 707 and is disposed at the bridge bow. In 7031, the steam inlet pipe 707 has one end leading to the steam collecting chamber 704 and the other end extending out of the furnace body 91.

As shown in FIG. 1 and FIG. 12, the steam generating device 75 includes an annular hollow metal casing 755, a steam package 754, and The steam drum inlet pipe 751 and the steam drum outlet pipe 752 are arranged at the bottom of the furnace body 91, and the inner ring cavity 758 of the annular hollow metal casing 755 is connected to the material cooling device. 70 low temperature cooling chamber 702 lower part, inner ring cavity 758 annular cavity is upper and lower small funnel shape, annular hollow metal box 755 box forms a relatively sealed furnace water bag for storing water 753 The furnace water bag 753 is connected with an inlet pipe 756 and a steam inlet pipe 751, the inlet pipe 756 is connected to the water storage tank 757, the steam inlet pipe 751 and the steam package 754 When the phase is turned on, the steam drum output pipe 752 of the steam package 754 communicates with the steam inlet pipe 707 at the other end of the material cooling device 70.

The principle of the water gas reaction principle of the present invention is:

(1) The steam in the steam package 754 passes through the steam inlet pipe 752 and the steam enters the pipe 707 to the material cooling device. The low temperature cooling chamber 702 of 70 is supplied with water vapor, and the water vapor is blown to the low temperature cooling chamber 702, except for the low temperature cooling chamber 702. In addition to the cooling of the solid product after the pyrolysis gasification, the water vapor is cascaded into the high temperature cooling chamber 701, and falls from the pyrolysis gasification chamber 61 into the high temperature cooling chamber 701. A large amount of pyrolysis and gasification of the high-temperature solid product is cooled, and the steam is cooled by the pyrolysis gasification solids, and the steam temperature is increased to form superheated steam;

(2), the superheated steam passes through the central support bow 65 into the pyrolysis gasification chamber 61, and with the pyrolysis gasification chamber 61 The high temperature coal gangue pyrolysis material contacts, after the coal gangue pyrolysis, the carbon in the solid product meets the superheated steam to react with water gas to form water gas (carbon monoxide and hydrogen);

(3) The solid product after pyrolysis and gasification of coal gangue falls from the pyrolysis gasification chamber 61 into the high temperature drop greenhouse of the material cooling device 70 In the 701 and low temperature falling greenhouse 702, the water vapor that has passed through the low temperature falling greenhouse 702 and the high temperature falling greenhouse 701 into the pyrolysis gasification chamber 61 is reheated into superheated high temperature steam. At the same time, the solid product after pyrolysis and gasification of coal gangue is cooled, and then the waste heat of the solid product in the low temperature drop greenhouse 702 is heated to form water vapor in the water of the furnace body water bag 753, and the water vapor passes through the steam drum inlet pipe. 751 Entering the steam package 754, the steam package 754 is replenished with a large amount of water vapor consumed by the water gas reaction, so that the water gas reaction can be continuously performed without interruption.

The large amount of water gas reaction of the present invention is generated in the pyrolysis gasification chamber 61 The middle and lower parts are carried out because the coal gangue in the pyrolysis gasification chamber in this section has been relatively pyrolyzed and the temperature is relatively high, at this time from the pyrolysis gasification chamber 61 The bottom of the water is heated by high temperature and superheated water. The superheated steam and the carbon in the solid product after the coal gangue pyrolysis produce a large amount of water gas; of course, the water vapor is in the high temperature drop greenhouse 701 and the low temperature drop greenhouse 702 Medium During the cooling process of the solid product after pyrolysis and gasification of coal gangue, the residual carbon in the solid product after pyrolysis and gasification of coal gangue also produces water gas, but the amount produced is relatively small, which is related to the pyrolysis gasification of coal gangue. The amount of residual carbon in the subsequent solid product is not much, The water vapor temperature is not too high.

The present invention utilizes a relatively low temperature solid product after pyrolysis gasification from coal gangue The waste heat is transferred by heat to generate water vapor, and then the steam is directly contacted with the solid product with higher temperature to generate superheated steam to reach the required temperature of the water gas reaction, thereby promoting the water gas reaction more fully, both reducing the solid product. At the same time of temperature, water vapor and superheated steam are generated. This technical method that does not require additional energy is in line with the concept of sustainable energy conservation and sustainable development that we advocate today.

Section 3 Waste gas exporting device

Coal gangue produces a gas containing many useful components in the high-temperature pyrolysis gasification process. After the coal gangue pyrolysis, the carbon in the product reacts with the superheated steam to produce water gas (carbon monoxide and hydrogen), which is collectively referred to as waste gas. The waste gas is exported for use.

As shown in Fig. 1, Fig. 8, and Fig. 9, the waste gas derivation device 8 includes a waste gas concentration chamber 81 and an inner outlet passage 82. , the outer lead passage 83, the lead main passage 84, the lead loop 85; the waste gas concentration chamber 81 is disposed at the top of the pyrolysis gasification chamber 61 and is integrally formed with the pyrolysis gasification chamber 61; as shown in Fig. 1 and Fig. 8 As shown, the six inner outlet channels 82 are set in the fire channel partition 635, and the inner outlet channel inlet 821 passes through the inner ring wall 612 to the middle of the pyrolysis gasification chamber 61, and the inner outlet channel outlet 822 passes through the inner ring wall 612 to the waste gas concentration chamber 81 at the top of the pyrolysis gasification chamber; as shown in Fig. 1 and Fig. 8, 6 outer outlet passages 83 are provided in the outer wall of the furnace body 91, Outer outlet channel inlet 831, upper and outer outlet channel inlet 834 through outer ring wall 611 central to pyrolysis gasification chamber 61, outer outlet passage outlet 832 through outer ring wall 611 A waste gas concentration chamber leading to the top of the pyrolysis gasification chamber 81 .

As shown in Fig. 1 and Fig. 7, the main channel 84 is set in the outer wall of the furnace body 91 of the coal pyrolysis furnace, and the main channel inlet is exported. It is connected to the waste gas concentration chamber 81 and then extends upward to the outer wall portion of the furnace body 91. The outlet loop 85 is provided with a waste gas outlet 851 and a waste gas outlet 852. .

As shown in Fig. 1, Fig. 7, Fig. 8, and Fig. 9, in this example, since the pyrolysis gasification chamber 61 has an annular chamber, the waste gas concentration chamber 81 is also correspondingly an annular chamber, and six inner outlet passages 82 are respectively disposed in six fire passage partition walls 635, passing through the inner annular wall 612 to the pyrolysis gasification chamber 61, and 6 outer outlet passages. 83 are respectively disposed in the middle of the outer wall of the furnace body 91 and the outer fire passage partition wall 625 and the outer annular wall 611 lead to the pyrolysis gasification chamber 61, wherein the pyrolysis gasification chamber 61 The circumference of the inner circumference wall 612 and the outer ring wall 611 of the pyrolysis gasification chamber 61 are respectively provided with six inner outlet passage inlets 821 and lower outer outlet passage inlets 831. The channel inlet 834 is exported to the outside, and because the height of the pyrolysis gasification chamber 61 is high, the channel inlet 821 and the lower outlet channel inlet 831 and the upper and outer outlet channel inlet 831 are extracted. Up and down staggered settings, as shown in Figure 1, the inner outlet channel inlet 821 is higher than the lower outer outlet channel inlet 831, but lower than the upper and outer outlet channel inlet 834, this example can be used to decompose the gasification chamber The waste gas generated in different sections of 61 can be better exported. In addition, there are 6 large-scale waste gas main passages 84 connected to the waste gas concentration room. The purpose of this setting is to facilitate the export of a large amount of waste gas in the waste gas concentration room 81.

As shown in Fig. 1, a waste gas temperature monitoring hole 811 leading to the waste gas concentration chamber 81 is provided on the outer wall of the furnace body 91. , the waste gas temperature monitoring hole 811 is placed in the waste gas temperature gauge 812.

As shown in Figure 13, the waste gas temperature gauge 812 is electrically connected to the industrial control center 90, and the industrial control center 90 passes the waste gas temperature gauge. 812 Monitoring the temperature in the waste gas concentration room 81.

In this example, the waste gas generated in different sections of the pyrolysis gasification chamber 61 is separately led out from the inlet of the passage 821 into the inner outlet passage 82 The middle and lower outer channel entrances 831, the upper and outer export channel inlets 834 enter the outer export channel outlets 83 and reassemble the waste gas concentration chambers 81, of course, the pyrolysis gasification chambers 61 The large amount of waste gas in the water is directly pumped into the waste gas concentration room 81, and is led to the outlet loop 85 through the outlet main passage 84, and finally discharged from the waste gas outlet 851.

Section 4 Continuous Pyrolysis Gasification

In summary, the example is characterized in that coal gangue pyrolysis, gasification (water gas reaction), steam generation, and waste gas derivation process are integrated into the same furnace body, so that coal gangue pyrolysis, gasification (water gas reaction), steam generation The waste gas is continuously realized.

As shown in Fig. 1, the coal gangue pyrolysis gasification furnace 9 comprises a furnace body 91, a furnace silo 92, a coal gangue pyrolysis gasification device 93, a waste gas export device 8, a hinge cage sealing discharge device 96, and a product silo. 94 ; coal gangue pyrolysis gasification device 93 including coal gangue pyrolysis device 6, water gas reaction device 7, coal gangue pyrolysis device 6, water gas reaction device 7, the specific structure of the waste gas export device 8 see above; into the charge The silo 92 is disposed at the top of the furnace body 91, and the furnace fabric passage 921 is arranged at the top of the furnace body 91. The upper end of the furnace fabric passage 921 communicates with the furnace silo 92, and the lower end of the furnace fabric passage 921 is pyrolyzed with the coal gangue pyrolysis device 6. The gasification chamber 61 is open at the top , and the cage seal discharger 96 is disposed at the bottom of the inner ring cavity 758 of the annular hollow metal casing 755 of the steam generating device 75 of the water gas reaction device 7, and the product silo 94 is placed at the bottom of the furnace body 91. The product silo 94 is connected with a hinged cage sealing discharger 96, and the hinged cage sealing discharger 96 belongs to the prior art, such as a sealed discharger, a seal returner, a sealing feeder and the like on the market.

The method of continuous pyrolysis gasification in this example is:

(1), by controlling the coal gangue belt conveyor 95 into the furnace, the coal gangue pellets after conditioning and dewatering are sent into the furnace silo 92 And entering the pyrolysis gasification chamber 61 of the coal gangue pyrolysis device 6 through the inlet cloth passage 921;

(2) The external gas heating device 64 passing through the coal gangue pyrolysis device 6 and the internal gas heating device 67 The purified gas is burned to the pyrolysis gasification chamber 61 to provide a heat source, and the coal gangue is pyrolyzed in a high temperature environment in the pyrolysis gasification chamber 61;

(3) passing through the water gas reaction device 7 from the lower portion of the pyrolysis gasification chamber 61 to the high temperature steam, and the pyrolysis gasification chamber 61 The high temperature hot coal gangue pyrolysis material contacts, the carbon in the solid product after coal gangue pyrolysis meets the superheated steam to react with water gas to form water gas;

(4) The solid product after pyrolysis and gasification of coal gangue falls from the pyrolysis gasification chamber 61 into the high temperature drop greenhouse of the material cooling device 70 In the 701 and low temperature drop greenhouse 702, the low temperature drop greenhouse 702 and the high temperature drop greenhouse 701 are directed upward into the pyrolysis gasification chamber. The water vapor is again heated to become superheated high-temperature steam, and at the same time, the solid product after pyrolysis and gasification of the coal gangue is cooled, and then the waste heat of the solid product in the greenhouse 702 is used to supply the steam generating device. The water in the annular water-filled metal box 755 of the furnace body 753 is heated to form water vapor, and the water vapor enters the steam package 754 through the steam drum inlet pipe 751, and the steam package 754 Replenishing a large amount of water vapor consumed by the water gas reaction;

(5), steam package 754 through the steam inlet pipe 752 and steam into the pipe 707 and then to the material cooling device 70 The low temperature drop greenhouse 702 is flooded with water vapor so that the water gas reaction can continue uninterrupted;

(6), The gas generated by coal gangue in the high-temperature pyrolysis process and the water gas reaction to form water gas (carbon monoxide and hydrogen) are collectively referred to as waste gas, and the waste gas passes through the waste gas exporting device provided on the furnace body. Exported for chemical recovery and utilization, while higher temperature waste gas enters the main channel of the waste gas exporting device from the top of the pyrolysis gasification chamber 61. The process is again from the incoming cloth passage 921 The incoming coal pyrite chamber at the top of the pyrolysis gasification chamber 61 is preheated;

(7) According to the degree of pyrolysis gasification of coal gangue, timely control of the hinged cage seal discharger 96 to open or close, the low temperature drop greenhouse 702 and Inner ring cavity 758 The solid product of coal gangue high temperature pyrolysis gasification and cooling is discharged into the product silo.

In this example, the coal gangue pyrolysis gasification process is integrated into the same coal thermal furnace body to realize continuous coal gangue pyrolysis gasification, high production efficiency, small plant surface required for equipment, low labor cost, and gasification after pyrolysis The residual heat in the solid product produces water vapor, and the high-temperature pyrolysis gasification of the solid product is cooled by steam to produce the high-humidity superheated steam required for the water gas reaction, which has the characteristics of low consumption and environmental protection.

The fourth part, the comprehensive recycling of coal pyrolysis gases

Chapter 1 Recovery and Utilization of Waste Gas (Chemical Production)

Section 1 Waste gas condensing device

Coal gangue pyrolysis gasification The temperature of the discharged waste gas is relatively high. In order to facilitate the transportation of the high-temperature waste gas before the chemical production and recovery, the high-temperature waste gas is sprayed with ammonia water for cooling.

Section 2 Recovery and purification of waste gas

Abandoned gas after spraying ammonia water Gas-liquid separation, gas-liquid separation of the mixture contains a variety of useful organic components such as phenol oil, naphthalene oil, washing oil, eucalyptus oil, etc. for industrial refining of other ancillary products, gas separation after gas-liquid separation by air cooling After that, it is purified and recovered by dry method to become net gas, and the net gas can be stored for combustion.

Chapter II Combustion and Utilization of Waste Gas Recovery and Purification

Section 1 Net gas combustion after waste gas recovery and purification

The adsorbed net gas is used for combustion to provide a heat source for pyrolysis and gasification of coal gangue.

Section 2 Regeneration and heating of saturated activated coke after exhaust gas combustion

The hot exhaust gas after the combustion of the net gas is used for the saturated activated coke which is purified by adsorption and purification of the waste gas, and is regenerated into unsaturated unsaturated coke by evaporation heating.

In the third section, the hot exhaust gas after the combustion of the net gas is used to adjust the moisture of the coal gangue particles.

The hot exhaust gas after the combustion of the net gas is used for humidity conditioning and dewatering of the coal gangue pellets before entering the furnace.

Chapter III Thermal Cycle Continuous Coal Gangue Pyrolysis Gasification Synthesis

The first section of the thermal cycle continuous coal gangue pyrolysis gasification and humidity control and exhaust gas purification

The hot exhaust gas after the net gas combustion is used to regulate the dewatering and dehydration of the coal gangue pellets before the furnace, and the hot exhaust gas After dehydration, the water is purified and cooled, and finally the clean low temperature discharge is achieved.

The second section of the thermal cycle continuous coal gangue pyrolysis gasification comprehensive process

Based on the above contents, a comprehensive process of thermal cycle continuous coal gangue pyrolysis gasification is completed, including coal gangue hot exhaust gas conditioning and dehydration, Coal gangue pyrolysis gasification, waste gas condensation, waste gas recovery and purification, exhaust gas purification.

Section III Control of Comprehensive Process of Thermal Cycle Continuous Coal Gangue Pyrolysis Gasification

The invention is characterized by pyrolysis gasification of coal gangue, Various electrical equipment used in the process of waste gas recovery and purification, net gas combustion, and waste heat utilization after combustion are controlled, so that the thermal cycle continuous coal gangue pyrolysis gasification can be smoothly carried out.

The above description is only an example of a thermal cycle continuous coal gangue pyrolysis gasification integrated device and process, and does not constitute a heat of the case. Circulating continuous coal gangue pyrolysis gasification integrated device and process protection limits.

Claims

1. A coal gas reaction device for pyrolysis gasification of coal gangue, characterized in that: comprising a pyrolysis gasification chamber, a material cooling device, a steam generating device; The pyrolysis gasification chamber is the same chamber as the pyrolysis gasification chamber of the coal gangue pyrolysis device, and the pyrolysis gasification chamber is located above the central support bow; the material cooling device and the steam generating device are located below the central support bow, Material cooling device Including high temperature cooling chamber, low temperature cooling chamber, cooling chamber bridge bow, the top of the high temperature drop greenhouse is connected to the bottom of the pyrolysis gasification chamber. The high temperature drop greenhouse and the low temperature drop greenhouse are arranged above and below, and the greenhouse bow is disposed between the high temperature drop greenhouse and the low temperature drop greenhouse, and the descending greenhouse bridge bow includes a bridge bow, a steam collecting chamber, and a steam entering the through pipe; Forming a steam collecting chamber, the lower opening of the steam collecting chamber faces the low temperature falling greenhouse, the steam entering the connecting tube is disposed in the bridge bow, the steam enters the one end of the through tube and leads to the collecting chamber, and the other end extends out of the furnace; The steam generating device comprises an annular hollow metal box body, a steam bag and a steam drum inlet pipe, a steam drum output pipe, the annular hollow metal box body is installed at the bottom of the furnace body, and the inner ring cavity of the annular hollow metal box body is connected to the material cooling device. Low temperature cooling In the lower part of the chamber, a ring-shaped hollow metal box body is formed with a relatively sealed water body for storing water, the water body of the furnace body is connected with an inlet pipe and a steam drum inlet pipe, the inlet pipe is connected with the water storage tank, and the steam inlet pipe and the steam are connected. Package phase, steam package The steam drum outlet pipe communicates with the steam of the material cooling device at the other end of the pipe.

2. The coal gas pyrolysis gasification water gas reaction apparatus according to claim 1, wherein: said material cooling device The greenhouse bow is arranged in a radial arrangement at a certain angular interval between the high temperature drop greenhouse and the low temperature drop greenhouse shaft center.

3. The coal gas pyrolysis gasification water gas reaction apparatus according to claim 1, wherein: said material cooling device The collecting chamber of the greenhouse bow is a cylindrical chamber, and the top of the collecting chamber is provided with a hemispherical hood.

4. The coal gas pyrolysis gasification water gas reaction apparatus according to claim 1, wherein: said steam generating device has an annular hollow metal casing. The inner ring cavity is in the shape of a large upper and a small funnel.