阅读说明：本技术 一种新型熔渣气化炉的液态排渣装置 (Novel slag tapping device of slag gasifier ) 是由 楚灼夫 郑西欧 桂春辉 郑小伦 陈海东 于 2021-09-01 设计创作，主要内容包括：本发明涉及一种新型熔渣气化炉的液态排渣装置,是一种新型熔渣气化反应炉的最核心的部分,属于煤化工、焦炭气化、燃气领域并涉及化学工程、化工机械、热力学、流体力学等技术领域。它包括气化炉炉底、渣口、燃烧短节、激冷罐、锁渣阀、盛渣罐和下渣阀；本发明为一种能稳定运行的液态排渣系统装置,以及结构布置合理的熔渣气化炉渣口、燃烧短节,解决在熔渣气化炉液态排渣时的托渣等问题,保证在气化炉稳定运行时能成功托举液渣,排渣时不熄火,不产生大量还原性气体,确保排渣的通畅,系统达到长周期运行。(The invention relates to a liquid slag discharging device of a novel slag gasification furnace, which is the most core part of a novel slag gasification reaction furnace, belongs to the fields of coal chemical industry, coke gasification and gas and relates to the technical fields of chemical engineering, chemical machinery, thermodynamics, hydrodynamics and the like. The device comprises a gasification furnace bottom, a slag hole, a combustion short section, a quenching tank, a slag locking valve, a slag containing tank and a slag discharging valve; the invention relates to a slag tapping system device capable of stably operating, and a slag port and a combustion nipple of a slag gasifier with reasonable structural arrangement, which solve the problems of slag supporting and the like when slag tapping is carried out on the slag gasifier, ensure that liquid slag can be successfully lifted when the gasifier stably operates, and the slag tapping is not flamed out, a large amount of reducing gas is not generated, ensure smooth slag tapping and ensure long-period operation of the system.)

1. The utility model provides a novel slag gasifier's slag tapping device which characterized in that: the device comprises a gasification furnace bottom (13), a slag hole (12), a combustion nipple (7), a quenching tank (4), a slag locking valve (3), a slag containing tank (2) and a slag discharging valve (1);

the gasification furnace bottom (13) comprises a gasification agent inlet (16), a gasification agent nozzle (14), a gasification agent nozzle cooling water inlet (17) and a gasification agent nozzle cooling water outlet (15), the side surface of the gasification agent nozzle (14) is provided with the gasification agent nozzle cooling water inlet (17) and the gasification agent nozzle cooling water outlet (15), and the gasification agent nozzle (14) is provided with the gasification agent inlet (16);

the bottom (13) of the gasification furnace is connected with the slag hole (12);

the slag hole (12) comprises a slag hole cooling water inlet (11) and a slag hole cooling water outlet (18);

the slag hole (12) is connected with a large flange of the combustion nipple (7);

the combustion nipple (7) comprises a burner (8), an automatic ignition device (19), a water jacket (21) and a sight glass (20), and the automatic ignition device (19), the water jacket (21) and the sight glass (20) are arranged on the side surface of the combustion nipple (7);

the burner (8) comprises a gas inlet (9) and an oxygen inlet (10);

the combustion nipple (7) is connected with a large flange of the quenching tank (4);

the chilling tank (4) comprises a chilling ring (6) and an automatic liquid level regulator (5); the chilling tank (4) is connected with the slag locking valve (3) and a flange of the slag containing tank (2), and the liquid level automatic regulator (5) is arranged on the side surface of the chilling tank (4);

the slag containing tank (2) is connected with an upper flange of the slag discharging valve.

2. The slag tapping device of the slag gasifier according to claim 1, wherein:

the gasification furnace bottom (13), the slag hole (12), the combustion nipple (7), the quenching tank (4), the slag locking valve (3), the slag containing tank (2) and the slag discharging valve (1) are of a split structure;

the bottom (13) of the gasification furnace is connected with the slag hole (12) by a flange, and the bottom and the slag hole are detachably separated;

the slag hole (12) and the combustion nipple (7) are connected by a flange, and the slag hole and the combustion nipple can be detached and separated;

the combustion nipple (7) and the quenching tank (4) are connected by a flange and can be detached and separated;

the quenching tank (4) is connected with the slag locking valve (3) by a flange, and the quenching tank and the slag locking valve can be detached and separated;

the slag locking valve (3) is connected with the slag containing tank (2) by a flange, and the slag locking valve and the slag containing tank can be detached and separated;

the slag containing tank (2) is connected with the slag discharging valve (1) by a flange, and the slag containing tank and the slag discharging valve can be detached and separated.

3. The slag tapping device of the slag gasifier according to claim 1, wherein:

the gasification agent nozzle (14) and the combustion nipple burner (8) are of split structures, the gasification agent nozzle (14) is connected with the bottom of the gasification furnace (13) through a flange, and the combustion nipple burner (8) is connected with the combustion nipple (7) through a flange.

4. The slag tapping device of the slag gasifier according to claim 1, wherein:

the chilling ring (6) is positioned at the upper part of the chilling tank (4), and the chilling ring (6) is connected with the housing of the chilling tank and the chilling water inlet in a welding mode to form a chilling water ring cavity.

5. The slag tapping device of the slag gasifier according to claim 1, wherein:

the furnace bottom gasifying agent nozzle (14), the combustion nipple burner (8) and the combustion nipple water jacket (20) are all cooled by adopting a cooling water indirect heat exchange mode so as to prolong the service life of the equipment.

6. The slag tapping device of the slag gasifier according to claim 1, wherein: the water-cooled wall of the gasifier bottom (13) is internally cooled by adopting demineralized water forced circulation to protect a furnace shell, and is matched with a steam pocket to produce low-pressure steam as a byproduct.

7. The slag tapping device of the slag gasifier according to claim 1, wherein: the gasification agent nozzle (14) comprises a nozzle (21), a quick cooling water channel (22), a hollow heat-insulating layer (23), a connecting flange (24), a leakage-proof cooling water outlet (25), a gasification agent inlet (16), a temperature-resistant sight glass (27) and a leakage-proof cooling water inlet (28);

the nozzle (21) is positioned at the end part of the gasifying agent nozzle (14), a quick cooling water channel (22) is formed between the hollow heat-insulating layer (23) and the inner wall of the gasifying agent nozzle (14), the side surface of the gasifying agent nozzle (14) is provided with a leakage-proof cooling water outlet (25) and a leakage-proof cooling water inlet (28), and the temperature-resistant sight glass (27) is positioned at the tail part of the gasifying agent nozzle (14).

Technical Field

The invention relates to a liquid-state slag discharging device of a novel slag gasifier, belongs to the field of coal chemical industry and coke gasification, and relates to the technical fields of chemical engineering, chemical machinery, thermodynamics, hydrodynamics and the like.

Background

The traditional fixed bed gasification furnace adopts a solid slag discharging furnace with a simple structure, the produced water-gas has low effective components, and the running equipment is difficult to meet the requirement of long-period running. The effective gas component proportion of the water gas can be effectively improved by improving the reaction temperature in the gasification furnace through mechanism research and engineering experience analysis. The reaction temperature of the reaction zone of the gasification furnace can be effectively increased by adopting slag gasification so as to increase the effective gas components of the water gas.

The slag gasifier is characterized in that a slag tapping mode is adopted, the traditional slag tapping is changed into slag tapping, and meanwhile, a plurality of technical problems are caused, wherein the most important is the overall design of a slag tapping system and the design of a combustion short joint. The whole slag tapping system needs to meet the requirements of smoothly tapping slag, no slag coagulation and no flameout when the gasification furnace operates stably, and the long-period operation of the gasification furnace is achieved.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art and provides a novel liquid slag discharging device of a slag gasification reaction furnace.

In order to achieve the purpose, the invention adopts the following technical scheme:

a novel liquid slag discharging device of a slag gasifier comprises a gasifier bottom, a slag hole, a combustion nipple, a quenching tank, a slag locking valve, a slag containing tank and a slag discharging valve;

the bottom of the gasification furnace comprises a gasification agent inlet, a gasification agent nozzle cooling water inlet and a gasification agent nozzle cooling water outlet, wherein the side surface of the gasification agent nozzle is provided with the gasification agent nozzle cooling water inlet and the gasification agent nozzle cooling water outlet, and the gasification agent nozzle is provided with the gasification agent inlet;

the bottom of the gasification furnace is connected with a slag hole;

the slag hole comprises a slag hole cooling water inlet and a slag hole cooling water outlet;

the slag hole is connected with a large flange of the combustion nipple;

the combustion nipple comprises a burner, an automatic ignition device, a water jacket and a sight glass, and the side surface of the combustion nipple is provided with the automatic ignition device water jacket and the sight glass;

the burner comprises a gas inlet and an oxygen inlet;

the combustion short section is connected with a large flange of the quenching tank;

the chilling tank comprises a chilling ring and an automatic liquid level regulator; the quenching tank is connected with the slag locking valve and a flange of the slag containing tank, and the liquid level automatic regulator is arranged on the side surface of the quenching tank;

the slag containing tank is connected with an upper flange of the slag discharging valve.

The scheme can make liquid slag from the furnace bottom slag pool enter the quenching tank through the slag hole and the combustion nipple, and the liquid slag is quenched and cooled at high temperature to form fine glass bodies which fall into the slag containing tank and are discharged intermittently.

Further, the bottom of the gasification furnace, the slag hole, the combustion short section, the quenching tank, the slag locking valve, the slag containing tank and the slag discharging valve are of a split structure;

the bottom of the gasification furnace is connected with the slag hole by a flange, and the bottom of the gasification furnace and the slag hole are detachably separated;

the slag hole and the combustion short section are connected by a flange, and the slag hole and the combustion short section can be detached and separated;

the combustion nipple and the chilling tank are connected by a flange and can be detached and separated;

the quenching tank and the slag locking valve are connected by a flange, and the quenching tank and the slag locking valve can be detached and separated;

the slag locking valve and the slag containing tank are connected by a flange and can be detached and separated;

the slag containing tank and the slag discharging valve are connected by a flange and can be detached and separated.

Further, the gasifying agent nozzle and the combustion nipple burner are of split structures, the gasifying agent nozzle is connected with the bottom of the gasification furnace through a flange, and the combustion nipple burner is connected with the combustion nipple through a flange.

Furthermore, the chilling ring is positioned at the upper part of the chilling tank and is connected with the shell of the chilling tank and the chilling water inlet in a welding mode to form a chilling water ring cavity.

Further, the furnace bottom gasifying agent nozzle, the combustion nipple burner and the combustion nipple water jacket are all cooled in a cooling water indirect heat exchange mode, so that the service life of the equipment is prolonged.

Furthermore, a furnace shell is protected by adopting demineralized water forced circulation cooling in a water-cooled wall at the bottom of the gasification furnace, and a steam pocket is matched to produce low-pressure steam as a byproduct.

The gasification agent nozzle comprises a nozzle, a quick cooling water channel, a hollow heat insulation layer, a connecting flange, a leakage-proof cooling water outlet, a gasification agent inlet, a temperature-resistant viewing mirror and a leakage-proof cooling water inlet;

the nozzle is positioned at the end part of the gasification agent nozzle, a quick cooling water channel is formed between the hollow heat-insulating layer and the inner wall of the gasification agent nozzle, the side surface of the gasification agent nozzle is provided with a leakage-proof cooling water outlet and a leakage-proof cooling water inlet (28), and the temperature-resistant sight glass is positioned at the tail part of the gasification agent nozzle.

The chilling adopts a novel chilling ring water spraying chilling and chilling circulating cooling structure;

the gasification agent nozzle is characterized in that a water jacket is arranged outside the gasification agent nozzle, a water jacket water inlet and a water jacket water outlet are formed in the water jacket, the outer wall of the water jacket is thickened and can resist scouring and corrosion, cooling water is discharged from the water jacket water inlet and discharged from the water jacket water outlet, and a water jacket water inlet pipe extends into the bottom of the water jacket, so that effective flowing of the cooling water of the gasification agent nozzle is ensured, the protection nozzle can absorb heat generated by the nozzle, and the gasification agent nozzle is good in cooling effect and strong in high-temperature radiation resistance. See fig. 2.

The furnace shell of the gasification furnace is made of steel, and the pressure resistance is designed to be 30 KPa-4.0 MPa.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

the invention relates to a slag tapping system device capable of stably operating, and a slag port and a combustion nipple of a slag gasifier with reasonable structural arrangement, which solve the problems of slag supporting and the like when slag tapping is carried out on the slag gasifier, ensure that liquid slag can be successfully lifted when the gasifier stably operates, and the slag tapping is not flamed out, a large amount of reducing gas is not generated, so that smooth slag tapping is ensured, the operation is simple and easy, the working condition is stable, and the system can operate for a long period.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of a gasifying nozzle according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A novel liquid slag discharging device of a slag gasifier comprises a gasifier bottom 13, a slag hole 12, a combustion nipple 7, a chilling tank 4, a slag locking valve 3, a slag containing tank 2 and a slag discharging valve 1;

the gasification furnace bottom 13 comprises a gasification agent inlet 16, a gasification agent nozzle 14, a gasification agent nozzle cooling water inlet 17 and a gasification agent nozzle cooling water outlet 15, the side surface of the gasification agent nozzle 14 is provided with the gasification agent nozzle cooling water inlet 17 and the gasification agent nozzle cooling water outlet 15, and the gasification agent nozzle 14 is provided with the gasification agent inlet 16;

the bottom 13 of the gasification furnace is connected with a slag hole 12;

the slag hole 12 comprises a slag hole cooling water inlet 11 and a slag hole cooling water outlet 18;

the slag hole 12 is connected with a large flange of the combustion nipple 7;

the combustion nipple 7 comprises a burner 8, an automatic ignition device 19, a water jacket 21 and a sight glass 20, and the automatic ignition device 19, the water jacket 21 and the sight glass 20 are arranged on the side surface of the combustion nipple 7;

the burner 8 comprises a gas inlet 9 and an oxygen inlet 10;

the combustion nipple 7 is connected with a large flange of the chilling tank 4;

the chilling tank 4 comprises a chilling ring 6 and an automatic liquid level regulator 5; the chilling tank 4 is connected with the slag locking valve 3 and a flange of the slag containing tank 2, and the liquid level automatic regulator 5 is arranged on the side surface of the chilling tank 4;

the slag containing tank 2 is connected with an upper flange of the slag discharging valve.

The invention can lead the liquid slag from the slag pool 13 at the bottom of the furnace to enter the quenching tank 4 through the slag hole 12 and the combustion short section 7, and the liquid slag is quenched and cooled at high temperature to form fine glass bodies which fall into the slag containing tank 2 and are discharged intermittently.

Further, the bottom 13 of the gasification furnace, the slag hole 12, the combustion nipple 7, the chilling tank 4, the slag locking valve 3, the slag containing tank 2 and the slag discharging valve 1 are of a split structure;

the bottom 13 of the gasification furnace is connected with the slag hole 12 by a flange, and the bottom 13 and the slag hole are detachably separated;

the slag hole 12 and the combustion nipple 7 are connected by a flange, and the slag hole and the combustion nipple can be detached and separated;

the combustion nipple 7 and the chilling tank 4 are connected by a flange, and can be detached and separated;

the quenching tank 4 and the slag locking valve 3 are connected by a flange, and the quenching tank 4 and the slag locking valve can be detached and separated;

the slag locking valve 3 is connected with the slag containing tank 2 through a flange, and the two are detachably separated;

the slag containing tank 2 and the slag discharging valve 1 are connected through flanges, and can be detached and separated.

Further, the gasifying agent nozzle 14 and the combustion nipple burner 8 are of split structures, the gasifying agent nozzle 14 is connected with the bottom 13 of the gasification furnace through a flange, and the combustion nipple burner 8 is connected with the combustion nipple 7 through a flange.

Furthermore, a chilling ring 6 is positioned at the upper part of the chilling tank 4, and the chilling ring 6 is connected with the housing of the chilling tank and a chilling water inlet in a welding mode to form a chilling water ring cavity.

Further, the furnace bottom gasifying agent nozzle 14, the combustion nipple burner 8 and the combustion nipple water jacket 20 are all cooled by adopting a cooling water indirect heat exchange mode so as to prolong the service life of the equipment.

Furthermore, the furnace shell is protected by forced circulation cooling of demineralized water in the water-cooled wall of the gasifier bottom 13, and a steam pocket is provided to produce low-pressure steam as a byproduct.

Furthermore, the outside of the gasifying agent nozzle is provided with a water jacket, the water jacket is provided with a water jacket water inlet and a water jacket water outlet, the outer wall of the water jacket is thickened, and the water jacket is resistant to scouring and corrosion, cooling water is discharged from the water jacket water inlet and discharged from the water jacket water outlet, and a water jacket water inlet pipe is deep into the bottom of the water jacket, so that the cooling water of the gasifying agent nozzle effectively flows, the protecting nozzle can absorb heat generated by the nozzle, and the gasifying agent nozzle has the advantages of good cooling effect and strong high-temperature radiation resistance.

The gasification agent nozzle 14 comprises a nozzle 21, a quick cooling water channel 22, a hollow heat insulation layer 23, a connecting flange 24, a leakage-proof cooling water outlet 25, a gasification agent inlet 16, a temperature-resistant viewing mirror 27 and a leakage-proof cooling water inlet 28;

the nozzle 21 is positioned at the end part of the gasifying agent nozzle 14, a quick cooling water channel 22 is formed between the hollow heat-insulating layer 23 and the inner wall of the gasifying agent nozzle 14, the side surface of the gasifying agent nozzle 14 is provided with a leakage-proof cooling water outlet 25 and a leakage-proof cooling water inlet 28, and the temperature-resistant sight glass 27 is positioned at the tail part of the gasifying agent nozzle 14. See fig. 2.

Furthermore, the furnace shell of the gasification furnace is made of steel, and the pressure resistance is designed to be 30 KPa-4.0 MPa.

Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and those skilled in the art can make simple modifications or substitutions on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.