CN211713022U - Feeding control system of slurry coupling gasification furnace - Google Patents
Feeding control system of slurry coupling gasification furnace Download PDFInfo
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- CN211713022U CN211713022U CN201921901095.9U CN201921901095U CN211713022U CN 211713022 U CN211713022 U CN 211713022U CN 201921901095 U CN201921901095 U CN 201921901095U CN 211713022 U CN211713022 U CN 211713022U
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Abstract
The utility model provides a whitewashed thick liquid coupling gasifier material feeding control system, include: the pulverized coal burner oxygen emptying assembly, the coal slurry burner feeding assembly and the pulverized coal burner feeding assembly are respectively communicated with the gasification furnace, wherein at least two groups of the coal slurry burner oxygen emptying assemblies are arranged and are respectively communicated with the gasification furnace, and the coal slurry burner oxygen emptying assembly is used for emptying oxygen; the pulverized coal burner oxygen emptying component is used for emptying oxygen; the coal slurry burner feeding assembly is used for feeding coal slurry and oxygen into the gasification furnace; the pulverized coal burner feeding assembly is used for feeding pulverized coal and oxygen into the gasifier. Carry out oxygen blowdown through setting up fine coal nozzle oxygen unloading subassembly and coal slurry nozzle oxygen unloading subassembly, set up coal slurry nozzle feeding subassembly and fine coal nozzle feeding subassembly and put into coal slurry, fine coal and oxygen to the gasifier to carry out the coupling gasification of powder thick liquid, ensure the long period of powder thick liquid coupling gasification equipment, continuous stable safe operation production.
Description
Technical Field
The utility model relates to a whitewashed thick liquid coupling gasification technical field particularly, relates to a whitewashed thick liquid coupling gasifier material feeding control system.
Background
At present, the technology of slurry coupling gasification is to arrange a pulverized coal burner at the top of a gasification furnace, and arrange a plurality of coal water slurry burners on a plane at a certain distance from the pulverized coal burner, and change the gas-solid flow and reaction effect in the furnace by adjusting the angle of the coal water slurry burners. The technology not only can greatly reduce the slurry forming performance requirement of the coal, but also expands the application range of the coal types; meanwhile, the technology reduces the specific oxygen consumption and the specific coal consumption of the gasification furnace, improves the cold gas efficiency and the effective gas component, increases the gas production capacity of the gasification furnace, and is suitable for large-scale gasification furnaces.
However, the control of various materials is a complex control process, the reasonable control of slurry and powder is the guarantee of the safe and stable operation of the whole system of the gasification furnace, and a stable slurry control system is not provided at present.
Disclosure of Invention
In view of this, the utility model provides a whitewashed thick liquid coupling gasifier throws material control system aims at solving the problem that improves whitewashed thick liquid coupling gasifier and throws material control system's stability.
In one aspect, the utility model provides a whitewashed thick liquid coupling gasifier material feeding control system, include: a pulverized coal burner oxygen emptying component, a coal slurry burner feeding component and a pulverized coal burner feeding component which are respectively communicated with the gasification furnace, wherein,
the coal slurry burner oxygen emptying assemblies are at least provided in two groups and are respectively communicated with the gasification furnace, and the coal slurry burner oxygen emptying assemblies are used for emptying oxygen;
the pulverized coal burner oxygen emptying component is used for emptying oxygen;
the coal slurry burner feeding assemblies are at least provided with two groups and are respectively communicated with the gasification furnace, and the coal slurry burner feeding assemblies are used for feeding coal slurry and oxygen into the gasification furnace;
the pulverized coal burner feeding assembly is used for feeding pulverized coal and oxygen into the gasification furnace.
Further, the powder slurry coupling gasification furnace feeding control system further comprises: the coal slurry circulating assembly is communicated with the gasification furnace through the coal slurry burner feeding assembly and is used for establishing coal slurry circulating amount; the pulverized coal circulating assembly is communicated with the gasification furnace through the pulverized coal burner feeding assembly and is used for establishing pulverized coal circulating quantity.
Further, a pulverized coal burner and at least two coal slurry burners are arranged on the gasification furnace, wherein the pulverized coal burner oxygen emptying assembly and the pulverized coal burner feeding assembly are respectively communicated with the pulverized coal burner, and the pulverized coal circulating assembly is communicated with the pulverized coal burner through the pulverized coal burner feeding assembly; each coal slurry burner is respectively communicated with one coal slurry burner oxygen emptying component and one coal slurry burner feeding component, and the coal slurry circulating component is communicated with the coal slurry burner through the coal slurry burner feeding component.
Further, the pulverized coal burner is arranged at the upper end of the gasification furnace along the central axis direction of the gasification furnace; the coal slurry burners are arranged on the side wall of the gasification furnace in a direction perpendicular to the direction in which the pulverized coal burners are arranged, and at least two coal slurry burners are arranged annularly along the circumferential direction of the gasification furnace.
Furthermore, the coal slurry burner feeding assembly comprises a coal slurry feeding assembly and a coal slurry burner oxygen feeding assembly, the coal slurry feeding assembly and the coal slurry burner oxygen feeding assembly are respectively communicated with the coal slurry burner, the coal slurry feeding assembly is used for feeding coal slurry into the gasification furnace, and the coal slurry burner oxygen feeding assembly is used for feeding oxygen into the gasification furnace.
Further, fine coal nozzle feeding subassembly includes fine coal feeding subassembly and fine coal nozzle oxygen feeding subassembly, fine coal feeding subassembly and fine coal nozzle oxygen feeding subassembly respectively with fine coal nozzle intercommunication, fine coal feeding subassembly be used for to put in the gasifier fine coal, fine coal nozzle oxygen feeding subassembly be used for to put in oxygen in the gasifier.
Further, the coal slurry burner oxygen emptying assembly comprises a coal slurry burner oxygen flow regulating valve and a coal slurry burner oxygen emptying valve which are respectively communicated with the coal slurry burner, and the coal slurry burner oxygen emptying valve is arranged between the coal slurry burner oxygen flow regulating valve and the coal slurry burner; the pulverized coal burner oxygen emptying assembly comprises a pulverized coal burner oxygen flow regulating valve and a pulverized coal burner oxygen emptying valve which are communicated with the pulverized coal burner respectively, and the pulverized coal burner oxygen emptying valve is arranged between the pulverized coal burner oxygen flow regulating valve and the pulverized coal burner.
Further, coal slurry feeding subassembly include with the first shut-off valve of coal slurry and the coal slurry second trip valve of coal slurry nozzle intercommunication, coal slurry nozzle oxygen feeding subassembly include in proper order with the coal slurry nozzle oxygen flow meter, coal slurry nozzle oxygen flow control valve, the first shut-off valve of coal slurry nozzle oxygen, coal slurry nozzle oxygen pipeline current-limiting orifice plate, coal slurry nozzle oxygen check valve, coal slurry nozzle center oxygen flow meter, coal slurry nozzle center oxygen governing valve and the central oxygen check valve of coal slurry nozzle intercommunication.
Further, the pulverized coal feeding assembly comprises a pulverized coal flow meter, a pulverized coal three-way valve and a pulverized coal shut-off valve which are sequentially communicated with the pulverized coal burner; the pulverized coal burner oxygen feeding assembly comprises a pulverized coal burner oxygen flow meter, a pulverized coal burner oxygen flow regulating valve, a pulverized coal burner oxygen first cut-off valve, a pulverized coal burner oxygen pipeline flow limiting orifice plate and a pulverized coal burner oxygen check valve which are sequentially communicated with the pulverized coal burner.
Further, the slurry circulation assembly comprises a slurry circulation valve; the pulverized coal circulation component comprises a pulverized coal three-way valve and a pulverized coal circulation valve.
Compared with the prior art, the beneficial effects of the utility model reside in that, carry out oxygen evacuation through setting up fine coal nozzle oxygen evacuation subassembly and coal slurry nozzle oxygen evacuation subassembly, set up coal slurry nozzle feeding subassembly and fine coal nozzle feeding subassembly and put in coal slurry, fine coal and oxygen to the gasifier in to carry out the coupling gasification of whitewashed thick liquid, simultaneously, throw the material process and receive logic control, ensure the long period of whitewashed thick liquid coupling gasification equipment, continuous stable safe operation production.
Furthermore, a plurality of groups of coal slurry burner oxygen emptying assemblies and coal slurry burner feeding assemblies are respectively communicated with different coal slurry burners to feed; the fine coal nozzle oxygen emptying assembly and the fine coal nozzle feeding assembly are respectively communicated with the fine coal nozzle to feed materials, so that the fine coal and coal slurry are fed through different nozzles, the feeding success rate is improved, misoperation caused by human factors is reduced, and safety and reliability of the gasification device during feeding operation can be effectively guaranteed.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a first block diagram of a feeding control system of a slurry coupling gasification furnace provided in an embodiment of the present invention;
fig. 2 is a second structural block diagram of a feeding control system of a slurry coupling gasification furnace provided in the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a feeding control system of a slurry coupling gasification furnace provided in an embodiment of the present invention;
fig. 4 is a feeding control schematic diagram of a feeding control system of a slurry coupled gasification furnace provided in an embodiment of the present invention;
in the figure: 1. a coal slurry pump, 2, a coal slurry flow meter, 3, a coal slurry first cut-off valve, 4, a coal slurry circulating valve, 5, a coal slurry second cut-off valve, 6, a coal slurry burner manual valve, 7, a coal slurry burner oxygen main valve, 8, a coal slurry burner oxygen flow meter, 9, a coal slurry burner oxygen flow regulating valve, 10, a coal slurry burner oxygen air release valve, 11, a coal slurry burner oxygen first cut-off valve, 12, a coal slurry burner oxygen high-pressure nitrogen fire wall valve, 13, a coal slurry burner oxygen second cut-off valve, 14, a coal slurry burner oxygen pipeline nitrogen valve, 15, a coal slurry burner oxygen burner head oxygen flow valve, 16, a coal slurry burner oxygen pipeline flow limiting orifice plate, 17, a coal slurry burner oxygen check valve, 18, a coal slurry burner central oxygen flow meter, 19, a coal slurry burner central oxygen regulating valve, 20, a coal slurry burner central oxygen check valve, 21, pulverized coal, 22, a cut-off valve, 23, a coal slurry circulating valve, a pulverized coal circulating valve, 24, a gasification furnace, 25, a pulverized coal burner, 26, a coal slurry burner, 27, a pulverized coal burner oxygen main valve, 28, a pulverized coal burner oxygen flow meter, 29, a pulverized coal burner oxygen flow regulating valve, 30, a pulverized coal burner oxygen blow-down valve, 31, a pulverized coal burner oxygen first cut-off valve, 32, a pulverized coal burner oxygen high-pressure nitrogen firewall valve, 33, a pulverized coal burner oxygen second cut-off valve, 34, a pulverized coal burner oxygen line nitrogen valve, 35, a pulverized coal burner oxygen burner manual valve, 36, a pulverized coal burner oxygen line restricted orifice plate, 37, a pulverized coal burner oxygen check valve, 38, a coal slurry line nitrogen valve, 39, a pulverized coal line nitrogen valve, 40, a pulverized coal flow meter, 100, a pulverized coal burner blow-down oxygen assembly, 110, a pulverized coal burner feeding assembly, 111, a pulverized coal feeding assembly, 112, a pulverized coal burner oxygen feeding assembly, 120, 200. the device comprises a coal slurry burner oxygen emptying component, a coal slurry burner feeding component, a coal slurry circulating component, a coal slurry burner oxygen emptying component, a coal slurry burner 210, a coal slurry burner feeding component, a coal slurry feeding component 211, a coal slurry feeding component 212, a coal slurry burner oxygen feeding component 220 and a coal slurry circulating component.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to fig. 3, the present embodiment discloses a feeding control system for a slurry coupling gasification furnace, including: a pulverized coal burner oxygen blowdown assembly 100, a slurry burner oxygen blowdown assembly 200, a slurry burner feed assembly 210, and a pulverized coal burner feed assembly 110, each of which is in communication with the gasifier 24.
Specifically, the coal slurry burner oxygen emptying assemblies 200 are at least arranged in two groups, the two groups of coal slurry burner oxygen emptying assemblies 200 are respectively communicated with the gasification furnace 24, and the coal slurry burner oxygen emptying assemblies 200 are used for emptying oxygen.
Specifically, the pulverized coal burner oxygen evacuation assembly 100 is in communication with the gasifier 24, and is used for oxygen evacuation.
Specifically, the coal slurry burner feeding assemblies 210 are at least arranged in two groups, the two groups of coal slurry burner feeding assemblies 210 are respectively communicated with the gasification furnace 24, and the coal slurry burner feeding assemblies 210 are used for feeding coal slurry and oxygen into the gasification furnace 24.
Specifically, the pulverized coal burner feed assembly 110 communicates with the gasifier 24 and is used to feed pulverized coal and oxygen into the gasifier 24.
Specifically, the operation of the pulverized coal burner oxygen blowdown assembly 100, the slurry burner oxygen blowdown assembly 200, the slurry burner feed assembly 210, and the pulverized coal burner feed assembly 110 is logically controlled.
It can be seen that the pulverized coal burner oxygen emptying assembly 100 and the coal slurry burner oxygen emptying assembly 200 are arranged for emptying oxygen, the coal slurry burner feeding assembly 210 and the pulverized coal burner feeding assembly 110 are arranged for feeding coal slurry, pulverized coal and oxygen into the gasification furnace 24 for coupled gasification of the coal slurry, and meanwhile, the feeding process is logically controlled, so that long-period, continuous and stable safe operation production of the coal slurry coupled gasification device is ensured.
Furthermore, a plurality of groups of coal slurry burner oxygen emptying assemblies 200 and coal slurry burner feeding assemblies 210 are respectively communicated with different coal slurry burners to feed; powder coal nozzle oxygen emptying subassembly 100, powder coal nozzle feeding subassembly 110 throw the material with powder coal nozzle intercommunication respectively for the throwing in of powder coal and coal slurry throws the material through the nozzle of difference, has not only improved and has thrown the material success rate, has reduced the maloperation that the human factor produced, can also effectual guarantee gasification equipment throw the security, the reliability of material during the operation.
Specifically, the slurry coupling gasification furnace feeding control system further comprises: a slurry circulation assembly 220 and a pulverized coal circulation assembly 120.
Specifically, the slurry circulation assembly 220 is in communication with the gasifier 24 via the slurry burner feed assembly 210, and the slurry circulation assembly 220 is configured to establish a slurry circulation volume. Specifically, the coal slurry circulation assembly 220 is communicated with the coal slurry burner feeding assembly 210 so as to input the established coal slurry circulation amount to the coal slurry burner feeding assembly 210, and the coal slurry burner feeding assembly 210 outputs the coal slurry to the gasification furnace 24.
Preferably, the coal slurry circulation assembly 220 is disposed opposite to the coal slurry burner feeding assembly 210, that is, the coal slurry circulation assembly 220 and the coal slurry burner feeding assembly 210 are disposed in the same number, so that each coal slurry circulation assembly 220 provides a coal slurry circulation amount for one coal slurry burner feeding assembly 210, and each coal slurry burner feeding assembly 210 is ensured to have sufficient coal slurry input, thereby ensuring that sufficient coal slurry is input into the gasification furnace 24, and improving the operation stability of the pulverized coal slurry coupling gasification furnace. It is understood that the number of the coal slurry circulation assembly and the coal slurry burner feeding assembly 210 can be set according to practical situations, and is not limited herein.
Specifically, the pulverized coal circulation assembly 120 communicates with the gasifier 24 through the pulverized coal burner feed assembly 110, and the pulverized coal circulation assembly 120 is used to establish a pulverized coal circulation volume. Specifically, the pulverized coal circulation assembly 120 is in communication with the pulverized coal burner feed assembly 110 such that the established pulverized coal circulation amount is input to the pulverized coal burner feed assembly 110, and the pulverized coal burner feed assembly 110 outputs the pulverized coal into the gasifier 24.
Preferably, the pulverized coal circulation component 120 is arranged opposite to the pulverized coal burner feeding component 110, that is, the pulverized coal circulation component 120 is the same as the pulverized coal burner feeding component 110 in number, so that each pulverized coal circulation component 120 provides a pulverized coal circulation amount for one pulverized coal burner feeding component 110, and each pulverized coal burner feeding component 110 is ensured to have enough pulverized coal input, so that enough pulverized coal is input into the gasification furnace 24, and the operation stability of the slurry-powder coupling gasification furnace 24 is improved. It is understood that the number of the slurry circulation assemblies and the pulverized coal burner feed assembly 110 can be set according to practical situations, and is not limited herein.
It can be seen that by the arrangement of the coal slurry circulation component 220 and the pulverized coal circulation component 120, pulverized coal and coal slurry can be continuously and circularly fed into the gasification furnace 24, so that sufficient input of the pulverized coal and the coal slurry in the gasification furnace 24 is ensured, the feeding efficiency and the feeding success rate of the gasification furnace 24 are improved, the safety and the reliability of the feeding operation period of the powder slurry coupling gasification furnace 24 are ensured, and the powder slurry coupling gasification furnace 24 can continuously, safely and stably operate.
Specifically, the gasification furnace 24 is provided with a pulverized coal burner 25 and at least two slurry burners 26.
Specifically, the pulverized coal burner oxygen emptying assembly 100 and the pulverized coal burner feeding assembly 110 are respectively communicated with the pulverized coal burner 25, and the pulverized coal circulation assembly 120 is communicated with the pulverized coal burner 25 through the pulverized coal burner feeding assembly 110.
Specifically, each coal slurry burner 26 is respectively communicated with a coal slurry burner oxygen emptying assembly 200 and a coal slurry burner feeding assembly 210, and the coal slurry circulating assembly 220 is communicated with the coal slurry burner 26 through the coal slurry burner feeding assembly 210.
Specifically, the coal slurry burners 26 are arranged opposite to the coal slurry burner feeding assemblies 210, that is, the coal slurry burners 26 and the coal slurry burner feeding assemblies 210 are arranged in the same number, and the specific number of the coal slurry burners can be set according to actual conditions, which is not limited herein.
Specifically, the pulverized coal burner 25 is provided at the upper end of the gasification furnace 24 along the central axis direction of the gasification furnace 24, that is, the pulverized coal burner 25 is provided at the upper end of the gasification furnace 24 and communicates with the gasification furnace 24, and the pulverized coal burner 25 is provided along the central axis direction of the gasification furnace 24 and overlaps the central axis of the gasification furnace 24.
Specifically, the coal slurry burners 26 are provided on the side wall of the gasification furnace 24 in the direction perpendicular to the direction in which the pulverized coal burners 25 are provided, and at least two coal slurry burners 26 are arranged in a ring shape in the circumferential direction of the gasification furnace 24. That is, the plurality of coal slurry burners 26 are communicated with the side wall of the gasification furnace 24, the coal slurry burners 26 are arranged in the direction perpendicular to the side wall of the gasification furnace 24, and the plurality of coal slurry burners 26 are arranged in a uniform ring shape along the circumferential direction of the side wall of the gasification furnace 24.
It can be seen that by arranging at least two coal slurry burners 26, the number of coal slurry to be fed into the gasification furnace 24 can be increased, the feeding efficiency of the coal slurry is improved, and the feeding success rate of the coal slurry is also improved.
Specifically, the coal slurry burner feeding assembly 210 includes a coal slurry feeding assembly 211 and a coal slurry burner oxygen feeding assembly 212, the coal slurry feeding assembly 211 and the coal slurry burner oxygen feeding assembly 212 are respectively communicated with the coal slurry burner 26, the coal slurry feeding assembly 211 is used for feeding coal slurry into the gasification furnace 24, and the coal slurry burner oxygen feeding assembly 212 is used for feeding oxygen into the gasification furnace 24.
Specifically, the coal slurry circulation component 220 is communicated with the coal slurry feeding component 211, the coal slurry circulation component 220 inputs the coal slurry into the coal slurry feeding component 211, and the coal slurry feeding component 211 inputs the received coal slurry into the gasification furnace 24 through the coal slurry burner 26; also, the slurry burner oxygen feed assembly 212 communicates with the slurry burner 26 to input oxygen into the gasifier 24 through the slurry burner 26. Preferably, the slurry burner oxygen feed assembly 212 is also in air separation communication to provide a source of oxygen to the slurry burner oxygen feed assembly 212 via air separation.
Specifically, the pulverized coal burner feeding assembly 110 includes a pulverized coal burner feeding assembly 111 and a pulverized coal burner oxygen feeding assembly 112, the pulverized coal burner feeding assembly 111 and the pulverized coal burner oxygen feeding assembly 112 are respectively communicated with the pulverized coal burner 25, the pulverized coal feeding assembly 111 is used for feeding pulverized coal into the gasification furnace 24, and the pulverized coal burner oxygen feeding assembly 112 is used for feeding oxygen into the gasification furnace 24.
Specifically, the pulverized coal circulation assembly 120 is communicated with the pulverized coal feeding assembly 111, the pulverized coal circulation assembly 120 inputs pulverized coal into the pulverized coal feeding assembly 111, and the pulverized coal feeding assembly 111 inputs the received pulverized coal into the gasification furnace 24 through the pulverized coal burner 25; also, the pulverized coal burner oxygen feed assembly 112 communicates with the pulverized coal burner 25 to input oxygen into the gasifier 24 through the pulverized coal burner 25. Preferably, the pulverized coal burner oxygen feed assembly 112 is also in air separation communication to provide a source of oxygen to the pulverized coal burner oxygen feed assembly 112 through air separation.
Continuing to refer to fig. 3, specifically, the coal slurry burner oxygen emptying assembly 200 includes a coal slurry burner oxygen flow regulating valve 9 and a coal slurry burner oxygen emptying valve 10 respectively communicated with the coal slurry burner 26, the coal slurry burner oxygen emptying valve 10 is disposed between the coal slurry burner oxygen flow regulating valve 9 and the coal slurry burner 26, that is, the coal slurry burner oxygen emptying valve 10 is disposed on a passage between the coal slurry burner oxygen flow regulating valve 9 and the coal slurry burner 26, the coal slurry burner oxygen flow regulating valve 9 is used for regulating the input amount of oxygen, and the coal slurry burner oxygen emptying valve 10 is used for discharging oxygen.
Specifically, the pulverized coal burner oxygen emptying assembly 100 includes a pulverized coal burner oxygen flow regulating valve 29 and a pulverized coal burner oxygen emptying valve 30 which are respectively communicated with the pulverized coal burner 25, the pulverized coal burner oxygen emptying valve 30 is arranged between the pulverized coal burner oxygen flow regulating valve 29 and the pulverized coal burner 25, namely, the pulverized coal burner oxygen emptying valve 30 is arranged on a passage between the pulverized coal burner oxygen flow regulating valve 29 and the pulverized coal burner 25, the pulverized coal burner oxygen flow regulating valve 29 is used for regulating the input amount of oxygen, and the pulverized coal burner oxygen emptying valve 30 is used for discharging oxygen.
Specifically, the coal slurry feeding assembly 211 comprises a coal slurry first cut-off valve 3 and a coal slurry second cut-off valve 5 which are sequentially communicated with the coal slurry burner 26, the coal slurry first cut-off valve 3 and the coal slurry second cut-off valve 5 are arranged on a coal slurry conveying pipeline between the coal slurry burner 26 and the coal slurry circulating assembly 220, the coal slurry second cut-off valve 5 is arranged close to the coal slurry burner 26, and the first cut-off valve and the coal slurry second cut-off valve 5 are used for controlling the on-off of the coal slurry conveying pipeline.
Preferably, the coal slurry feeding assembly 211 further comprises a coal slurry flow meter 2, a coal slurry furnace end manual valve 6 and a coal slurry pipeline nitrogen valve 38, wherein the coal slurry flow meter 2 is arranged on the coal slurry circulating pipeline, and the coal slurry furnace end manual valve 6 is arranged on a passage between the coal slurry second cut-off valve 5 and the coal slurry burner 26; the coal slurry pipeline nitrogen valve 38 is arranged between the coal slurry furnace end manual valve 6 and the coal slurry second cut-off valve 5, one side of the coal slurry pipeline nitrogen valve 38 is communicated with a passage between the coal slurry furnace end manual valve 6 and the coal slurry second cut-off valve 5, the other side of the coal slurry pipeline nitrogen valve 38 is communicated with the high-pressure nitrogen output device, and the coal slurry pipeline nitrogen valve 38 is used for controlling the output of high-pressure nitrogen into the passage between the coal slurry furnace end manual valve 6 and the coal slurry second cut-off valve 5.
Specifically, the coal slurry burner oxygen feeding assembly 212 includes a coal slurry burner oxygen flow meter 8, a coal slurry burner oxygen flow regulating valve 9, a coal slurry burner oxygen first cut-off valve 11, a coal slurry burner oxygen pipeline flow limiting orifice plate 16, a coal slurry burner oxygen check valve 17, a coal slurry burner central oxygen flow meter 18, a coal slurry burner central oxygen regulating valve 19 and a coal slurry burner central oxygen check valve 20 which are communicated with the coal slurry burner 26.
Specifically, one side of a coal slurry burner oxygen flowmeter 8 is communicated with an air separator, the other side of the coal slurry burner oxygen flowmeter is communicated with a coal slurry burner oxygen flow regulating valve 9, the coal slurry burner oxygen flow regulating valve 9 is communicated with a coal slurry burner oxygen first cut-off valve 11, the coal slurry burner oxygen first cut-off valve 11 is communicated with a coal slurry burner oxygen pipeline flow limiting orifice plate 16, the coal slurry burner oxygen pipeline flow limiting orifice plate 16 is communicated with a coal slurry burner oxygen check valve 17, and the coal slurry burner oxygen check valve 17 is communicated with a coal slurry burner 26; a branch passage is arranged on a passage between the coal slurry burner oxygen first cut-off valve 11 and the coal slurry burner oxygen pipeline flow limiting orifice plate 16, one side of a coal slurry burner central oxygen flow meter 18 is communicated with the passage between the coal slurry burner oxygen first cut-off valve 11 and the coal slurry burner oxygen pipeline flow limiting orifice plate 16 and is communicated with the coal slurry burner central oxygen flow meter 18, the other side of the coal slurry burner central oxygen flow meter 18 is communicated with a coal slurry burner central oxygen regulating valve 19, the coal slurry burner central oxygen regulating valve 19 is communicated with a coal slurry burner central oxygen check valve 20, and the coal slurry burner central oxygen check valve 20 is communicated with a coal slurry burner 26, namely, the coal slurry burner central oxygen flow meter 18, the coal slurry burner central oxygen regulating valve 19 and the coal slurry burner central oxygen check valve 20 are arranged on the branch passage between the coal slurry burner oxygen first cut-off valve 11 and the coal slurry burner oxygen pipeline flow limiting orifice plate 16.
Preferably, the coal slurry burner oxygen feeding assembly 212 further comprises a coal slurry burner oxygen burner manual valve 15, a coal slurry burner oxygen second cut-off valve 13, a coal slurry burner oxygen high-pressure nitrogen firewall valve 12 and a coal slurry burner oxygen pipeline nitrogen valve 14, wherein the coal slurry burner oxygen first cut-off valve 11 is communicated with the coal slurry burner oxygen pipeline flow-limiting orifice plate 16 through the coal slurry burner oxygen second cut-off valve 13, that is, the coal slurry burner oxygen second cut-off valve 13 is arranged between the coal slurry burner oxygen first cut-off valve 11 and the coal slurry burner oxygen pipeline flow-limiting orifice plate 16; one side of the coal slurry burner oxygen high-pressure nitrogen firewall valve 12 is communicated with a passage between the coal slurry burner oxygen first cut-off valve 11 and the coal slurry burner oxygen second cut-off valve 13, the other side of the coal slurry burner oxygen high-pressure nitrogen firewall valve 12 is communicated with a high-pressure nitrogen output device, and the coal slurry burner oxygen high-pressure nitrogen firewall valve 12 is used for controlling the high-pressure nitrogen output device to input high-pressure nitrogen into the passage between the coal slurry burner oxygen first cut-off valve 11 and the coal slurry burner oxygen second cut-off valve 13; the coal slurry burner oxygen burner manual valve 15 is arranged on a passage between the coal slurry burner oxygen second cut-off valve 13 and the coal slurry burner oxygen pipeline flow-limiting orifice plate 16, namely, the coal slurry burner oxygen second cut-off valve 13 is communicated with the coal slurry burner oxygen pipeline flow-limiting orifice plate 16 through the coal slurry burner oxygen burner manual valve 15; one side of the coal slurry burner oxygen pipeline nitrogen valve 14 is communicated with a passage between the coal slurry burner oxygen second cut-off valve 13 and the coal slurry burner oxygen burner manual valve 15, the other side of the coal slurry burner oxygen pipeline nitrogen valve 14 is communicated with a high-pressure nitrogen output device, and the coal slurry burner oxygen pipeline nitrogen valve 14 is used for controlling the high-pressure nitrogen output device to input high-pressure nitrogen into the passage between the coal slurry burner oxygen second cut-off valve 13 and the coal slurry burner oxygen burner manual valve 15.
Specifically, the coal slurry burner oxygen relief valve 10 is communicated with a passage between the coal slurry burner oxygen flow control valve 9 and the coal slurry burner oxygen first shut-off valve 11.
Specifically, fine coal feeding subassembly 111 includes fine coal flowmeter 40, fine coal three-way valve 22 and the fine coal trip valve 21 that communicate with fine coal nozzle 25 in proper order, and fine coal flowmeter 40 sets up on the fine coal circulation route, and fine coal flowmeter 40 and fine coal three-way valve 22 intercommunication, fine coal three-way valve 22 and fine coal trip valve 21 intercommunication, fine coal three-way valve 22 still communicate with the fine coal circulation route, and fine coal trip valve 21 and fine coal nozzle 25 communicate.
Preferably, the pulverized coal feeding assembly 111 further comprises a pulverized coal pipeline nitrogen valve 39, one side of the pulverized coal pipeline nitrogen valve 39 is communicated with a passage between the pulverized coal shut-off valve 21 and the pulverized coal burner 25, the other side of the pulverized coal pipeline nitrogen valve is communicated with a high-pressure nitrogen output device, and the pulverized coal burner 25 is used for controlling the high-pressure nitrogen output device to input high-pressure nitrogen into the pulverized coal burner 25.
Specifically, the pulverized coal burner oxygen feeding assembly 112 includes a pulverized coal burner oxygen flow meter 28, a pulverized coal burner oxygen flow regulating valve 29, a pulverized coal burner oxygen first cut-off valve 31, a pulverized coal burner oxygen line flow limiting orifice plate 36 and a pulverized coal burner oxygen check valve 37 which are sequentially communicated with the pulverized coal burner 25, specifically, one side of the pulverized coal burner oxygen flow meter 28 is communicated with an air separation, the other side of the pulverized coal burner oxygen flow regulating valve 29 is communicated with the pulverized coal burner oxygen flow regulating valve 29, the pulverized coal burner oxygen flow regulating valve 29 is communicated with the pulverized coal burner oxygen first cut-off valve 31, the pulverized coal burner oxygen first cut-off valve 31 is communicated with the pulverized coal burner oxygen line flow limiting orifice plate 36, the pulverized coal burner oxygen line flow limiting orifice plate 36 is communicated with the pulverized coal burner oxygen check valve 37, the pulverized coal burner oxygen check valve 37, The first pulverized coal burner oxygen cut-off valve 31, the pulverized coal burner oxygen pipeline flow-limiting orifice plate 36 and the pulverized coal burner oxygen check valve 37 are communicated in sequence to form a passage.
Specifically, the pulverized coal burner oxygen release valve 30 communicates with a passage between the pulverized coal burner oxygen flow rate adjustment valve 29 and the pulverized coal burner oxygen first shutoff valve 31.
Preferably, the pulverized coal burner oxygen feeding assembly 112 further comprises a pulverized coal burner oxygen line nitrogen valve 34, a pulverized coal burner oxygen second cut-off valve 33, a pulverized coal burner oxygen burner manual valve 35 and a pulverized coal burner oxygen high-pressure nitrogen firewall valve 32, specifically, the pulverized coal burner oxygen second cut-off valve 33 is arranged on a passage between the pulverized coal burner oxygen first cut-off valve 31 and the pulverized coal burner oxygen line flow limiting orifice plate 36, that is, the pulverized coal burner oxygen first cut-off valve 31 is communicated with the pulverized coal burner oxygen line flow limiting orifice plate 36 through the pulverized coal burner oxygen second cut-off valve 33; the pulverized coal burner oxygen burner manual valve 35 is arranged on a passage between the pulverized coal burner oxygen second cut-off valve 33 and the pulverized coal burner oxygen pipeline flow-limiting orifice plate 36, namely, the pulverized coal burner oxygen second cut-off valve 33 is communicated with the pulverized coal burner oxygen pipeline flow-limiting orifice plate 36 through the pulverized coal burner oxygen burner manual valve 35; one side of the pulverized coal burner oxygen high-pressure nitrogen fire wall valve 32 is communicated with a passage between the pulverized coal burner oxygen first cut-off valve 31 and the pulverized coal burner oxygen second cut-off valve 33, the other side of the pulverized coal burner oxygen high-pressure nitrogen fire wall valve 32 is communicated with a high-pressure nitrogen output device, and the pulverized coal burner oxygen high-pressure nitrogen fire wall valve 32 is used for controlling the high-pressure nitrogen output device to input high-pressure nitrogen into the passage between the pulverized coal burner oxygen first cut-off valve 31 and the pulverized coal burner oxygen second cut-off valve; one side of the pulverized coal burner oxygen pipeline nitrogen valve 34 is communicated with a passage between the pulverized coal burner oxygen second cut-off valve 33 and the pulverized coal burner oxygen burner manual valve 35, the other side of the pulverized coal burner oxygen pipeline nitrogen valve is communicated with a high-pressure nitrogen output device, and the pulverized coal burner oxygen pipeline nitrogen valve 34 is used for controlling the high-pressure nitrogen output device to input high-pressure nitrogen into the passage between the pulverized coal burner oxygen second cut-off valve 33 and the pulverized coal burner oxygen burner manual valve 35.
Specifically, the coal slurry burner oxygen line nitrogen valve 14 and the pulverized coal burner oxygen line nitrogen valve 34 are communicated with the same high-pressure nitrogen output device.
Specifically, the coal slurry circulation assembly 220 includes a coal slurry circulation valve 4, and the coal slurry circulation valve 4 is disposed on the coal slurry circulation path to control the on-off of the coal slurry circulation path.
Preferably, a coal slurry pump 1 is further disposed on the coal slurry circulation path, the coal slurry pump 1 is configured to drive the coal slurry to circulate in the coal slurry circulation path, and input the coal slurry into the coal slurry conveying pipeline, and the coal slurry conveying pipeline conveys the coal slurry into the coal slurry burner 26.
Preferably, the coal slurry circulation path is further provided with a coal slurry flow meter 2.
Specifically, the pulverized coal circulation module 120 includes a pulverized coal three-way valve 22 and a pulverized coal circulation valve 23, and the pulverized coal circulation valve 23 is disposed on the pulverized coal circulation path to control on/off of the pulverized coal circulation path. The pulverized coal circulation path is communicated with the pulverized coal path through a pulverized coal three-way valve 22.
As shown in fig. 3, in a specific implementation, the pulverized coal slurry is coupled with the air separation output oxygen of the gasifier feed control system, and the air separation output oxygen is divided into two paths, one is a pulverized coal oxygen path and the other is a coal slurry oxygen path, i.e., the pulverized coal oxygen path and the coal slurry oxygen path are simultaneously communicated with the air separation, and the oxygen output by the air separation is received and input into the gasifier 24.
Specifically, a pulverized coal burner oxygen main valve 27 is arranged on the pulverized coal oxygen passage, and oxygen sequentially enters a pulverized coal burner oxygen flow meter 28, a pulverized coal burner oxygen flow regulating valve 29, a pulverized coal burner oxygen first cut-off valve 31, a pulverized coal burner oxygen second cut-off valve 33, a pulverized coal burner oxygen manual valve 35, a pulverized coal burner oxygen pipeline flow limiting orifice plate 36, a pulverized coal burner oxygen check valve 37 after passing through the pulverized coal burner oxygen main valve 27, then enters the pulverized coal burner 25, and enters the gasifier 24 after passing through the pulverized coal burner 25. Namely, the pulverized coal burner oxygen main valve 27, the pulverized coal burner oxygen flow meter 28, the pulverized coal burner oxygen flow regulating valve 29, the pulverized coal burner oxygen first cut-off valve 31, the pulverized coal burner oxygen second cut-off valve 33, the pulverized coal burner oxygen burner manual valve 35, the pulverized coal burner oxygen line flow-limiting orifice plate 36 and the pulverized coal burner oxygen check valve 37 are communicated in sequence to form a pulverized coal oxygen passage.
Specifically, a pulverized coal burner oxygen emptying branch communicated with the pulverized coal burner oxygen flow regulating valve 29 and the pulverized coal burner oxygen first cut-off valve 31 is arranged on a passage between the pulverized coal burner oxygen flow regulating valve 29 and the pulverized coal burner oxygen first cut-off valve 31, a pulverized coal burner oxygen emptying valve 30 is arranged on the pulverized coal burner oxygen emptying branch, and the pulverized coal burner oxygen emptying branch is used for discharging oxygen in the pulverized coal oxygen passage so as to perform oxygen emptying operation.
Specifically, a first pulverized coal nitrogen branch communicated with a passage between the first pulverized coal nozzle oxygen cutoff valve 31 and the second pulverized coal nozzle oxygen cutoff valve 33 is arranged on the passage, a pulverized coal nozzle oxygen high-pressure nitrogen firewall valve 32 is arranged on the first pulverized coal nitrogen branch, and the first pulverized coal nitrogen branch is communicated with a high-pressure nitrogen output device so as to input nitrogen into the pulverized coal oxygen passage.
Specifically, a second pulverized coal nitrogen branch communicated with a passage between the second pulverized coal burner oxygen shut-off valve 33 and the manual pulverized coal burner oxygen valve 35 is arranged on the passage, a pulverized coal burner oxygen pipeline nitrogen valve 34 is arranged on the second pulverized coal nitrogen branch, and the second pulverized coal nitrogen branch is communicated with a high-pressure nitrogen output device so as to input nitrogen into the pulverized coal oxygen passage.
Specifically, a coal slurry burner oxygen main valve 7 is arranged on the coal slurry oxygen passage, and oxygen passes through the coal slurry burner oxygen main valve 7 and then sequentially enters a coal slurry burner oxygen flowmeter 8, a coal slurry burner oxygen flow regulating valve 9, a coal slurry burner oxygen first cut-off valve 11, a coal slurry burner oxygen second cut-off valve 13, a coal slurry burner oxygen burner manual valve 15, a coal slurry burner oxygen pipeline flow limiting hole plate 16, a coal slurry burner oxygen check valve 17, then enters the coal slurry burner, passes through the coal slurry burner and then enters a gasifier 24. Namely, oxygen is communicated in sequence through a coal slurry burner oxygen main valve 7, a coal slurry burner oxygen flowmeter 8, a coal slurry burner oxygen flow regulating valve 9, a coal slurry burner oxygen first cut-off valve 11, a coal slurry burner oxygen second cut-off valve 13, a coal slurry burner oxygen manual valve 15, a coal slurry burner oxygen pipeline flow limiting orifice plate 16 and a coal slurry burner oxygen check valve 17 to form a coal slurry oxygen passage.
Specifically, a passage between the coal slurry burner oxygen flow regulating valve 9 and the coal slurry burner oxygen first cut-off valve 11 is provided with a coal slurry burner oxygen emptying branch communicated with the passage, the coal slurry burner oxygen emptying branch is provided with a coal slurry burner oxygen emptying valve 10, and the coal slurry burner oxygen emptying branch is used for discharging oxygen in the coal slurry oxygen passage so as to perform oxygen emptying operation.
Specifically, a first coal slurry nitrogen branch communicated with a passage between the first coal slurry burner oxygen cutoff valve 11 and the second coal slurry burner oxygen cutoff valve 13 is arranged on the passage, a coal slurry burner oxygen high-pressure nitrogen fire-proof wall valve 12 is arranged on the first coal slurry nitrogen branch, and the first coal slurry nitrogen branch is communicated with a high-pressure nitrogen output device so as to input nitrogen into the coal slurry oxygen passage.
Specifically, a second coal slurry nitrogen branch communicated with a passage between the second coal slurry burner oxygen stop valve 13 and the manual coal slurry burner end valve 15 is arranged on the passage, a coal slurry burner oxygen pipeline nitrogen valve 14 is arranged on the second coal slurry nitrogen branch, and the second coal slurry nitrogen branch is communicated with a high-pressure nitrogen output device so as to input nitrogen into the coal slurry oxygen passage.
Specifically, the second pulverized coal nitrogen branch and the second coal slurry nitrogen branch are communicated with the same high-pressure nitrogen output device.
Preferably, a coal slurry burner center oxygen branch is further arranged on the coal slurry oxygen passage, one end of the coal slurry burner center oxygen branch is communicated with a passage between the coal slurry burner oxygen burner end manual valve 15 and the coal slurry burner end oxygen pipeline flow-limiting orifice plate 16, and the other end of the coal slurry burner end center oxygen branch is communicated with the coal slurry burner 26.
Preferably, a coal slurry burner center oxygen flow meter 18, a coal slurry burner center oxygen regulating valve 19 and a coal slurry burner center oxygen check valve 20 are sequentially arranged on the coal slurry burner center oxygen branch, that is, the coal slurry burner center oxygen flow meter 18, the coal slurry burner center oxygen regulating valve 19 and the coal slurry burner center oxygen check valve 20 are sequentially communicated to form the coal slurry burner center oxygen branch.
As shown in fig. 3, in specific implementation, the feeding control system of the slurry coupling gasification furnace is further provided with a slurry circulation path and a slurry delivery path, wherein the slurry circulation path is a circulation path and is used for circulating slurry; the coal slurry circulating passage is provided with a coal slurry pump 1, a coal slurry flow meter 2 and a coal slurry circulating valve 4.
Specifically, the slurry circulation path communicates with the slurry transport path to transport the slurry into the slurry transport path, which transports the slurry into the slurry burner 26. The coal slurry conveying passage is sequentially provided with a coal slurry first cut-off valve 3, a coal slurry second cut-off valve 5 and a coal slurry furnace end manual valve 6, and the coal slurry furnace end manual valve 6 is arranged close to the coal slurry burner 26, namely, the coal slurry first cut-off valve 3, the coal slurry second cut-off valve 5 and the coal slurry furnace end manual valve 6 are sequentially communicated to form the coal slurry conveying passage.
Specifically, a coal slurry nitrogen branch communicated with a passage between the coal slurry second cut-off valve 5 and the coal slurry furnace end manual valve 6 is arranged on the passage, a coal slurry pipeline nitrogen valve 38 is arranged on the coal slurry nitrogen branch, and the coal slurry nitrogen branch is communicated with a high-pressure nitrogen output device so as to input nitrogen into the coal slurry conveying passage.
In specific implementation, the feeding control system of the slurry coupling gasification furnace is also provided with a pulverized coal circulation passage and a pulverized coal conveying passage, wherein the pulverized coal circulation passage is a circulation passage and is used for circulating pulverized coal; the pulverized coal circulation path is provided with a pulverized coal three-way valve 22, a pulverized coal circulation valve 23, and a pulverized coal flow meter 40.
Specifically, the pulverized coal circulation path communicates with the pulverized coal conveyance path through the pulverized coal three-way valve 22 to convey the pulverized coal into the pulverized coal conveyance path, and the pulverized coal conveyance path conveys the pulverized coal into the pulverized coal burner 25. The pulverized coal conveying path is provided with a pulverized coal shut-off valve 21.
Specifically, a pulverized coal nitrogen branch communicated with the pulverized coal shut-off valve 21 and the pulverized coal burner 25 is arranged on the pulverized coal conveying passage, a pulverized coal pipeline nitrogen valve 39 is arranged on the pulverized coal nitrogen branch, and the pulverized coal nitrogen branch is communicated with a high-pressure nitrogen output device so as to input nitrogen into the pulverized coal conveying passage.
It can be seen that the feeding process of the powder slurry coupling gasification furnace feeding control system is logically controlled by arranging the coal slurry circulation component 220, the pulverized coal circulation component 120, the pulverized coal burner oxygen emptying component 100, the coal slurry burner oxygen emptying component 200, the coal slurry burner feeding component 210 and the pulverized coal burner feeding component 110, and the powder slurry coupling gasification furnace feeding control system not only improves the feeding success rate, reduces misoperation caused by human factors, and ensures the safety and reliability of a gasification device during feeding operation.
Referring to fig. 4, the control steps of the slurry-coupled gasifier feed control system will be described below by taking two sets of slurry burner feed assemblies 210 as an example.
Specifically, the gasification furnace 24 has feeding conditions, and after the coal slurry circulation, the pulverized coal circulation and the oxygen emptying reach preset requirements, the first group of coal slurry burner feeding, the second group of coal slurry burner feeding and the pulverized coal feeding assembly 111 simultaneously or respectively feed coal and oxygen into the pulverized coal slurry coupling gasification reaction device, and perform pressure boosting and temperature raising operations on the pulverized coal slurry coupling gasification device, so that the pulverized coal slurry coupling gasification device works under preset pressure and temperature.
Specifically, if the feeding assembly of the first group of coal slurry burners has a problem, stopping the feeding assembly of the first group, starting a system purging program of the first group of coal slurry burners, and introducing shielding gas; if the feeding assembly of the second group of coal slurry burners has a problem, stopping the feeding assembly of the second group of coal slurry burners, starting a purging program of the feeding assembly of the second group of coal slurry burners, and introducing shielding gas; if the pulverized coal feeding component 111 has a problem, stopping the pulverized coal feeding component 111, starting a purging program of the pulverized coal feeding component 111, and introducing protective gas; if two feeding assemblies have problems, the two feeding systems are stopped simultaneously, and the purging procedures of the two feeding assemblies are started simultaneously and protective gas is introduced.
Preferably, the coal slurry first cut-off valve 3, the coal slurry circulating valve 4, the coal slurry second cut-off valve 5, the coal slurry burner oxygen blow-off valve 10, the coal slurry burner oxygen first cut-off valve 11, the coal slurry burner oxygen high-pressure nitrogen fire-proof wall valve 12, the coal slurry burner oxygen second cut-off valve 13, the coal slurry burner oxygen pipeline nitrogen valve 14, the pulverized coal cut-off valve 21, the pulverized coal three-way valve 22, the pulverized coal circulating valve 23, the pulverized coal burner oxygen blow-off valve 30, the pulverized coal burner oxygen first cut-off valve 31, the pulverized coal burner oxygen high-pressure nitrogen fire-proof wall valve 32, the pulverized coal burner oxygen second cut-off valve 33, the pulverized coal burner oxygen pipeline nitrogen valve 34, the coal slurry pipeline nitrogen valve 38 and the pulverized coal pipeline nitrogen valve 39 are preferably cylinder type spring reset pneumatic cut-off ball valves, and are respectively electrically connected with an SIS system (SIS, safety instrument system), and are controlled by the SIS system.
Preferably, the coal slurry burner oxygen main valve 7, the coal slurry burner oxygen flow regulating valve 9, the coal slurry burner center oxygen regulating valve 19, the pulverized coal burner oxygen main valve 27 and the pulverized coal burner oxygen flow regulating valve 29 are preferably pneumatic thin-film sleeve structure regulating valves, and are respectively electrically connected with and controlled by a DCS (Distributed Control System).
Therefore, the valves are interlocked and controlled through the SIS system and the DCS system respectively, so that the control efficiency of the feeding control system of the powder slurry coupling gasification furnace is greatly improved, and the feeding efficiency and the working efficiency of the feeding control system of the powder slurry coupling gasification furnace are further improved.
The specific control steps of the feeding control system of the slurry coupling gasification furnace are as follows:
the first step is as follows: confirming the existence of the charging conditions of the gasification furnace 24
The second step is that: initialization
Specifically, the gasifier 24 is confirmed to reach the gasifier 24 charging condition, and the gasifier 24 "initialize" button is activated.
Specifically, the oxygen emptying valve 10, the coal slurry circulating valve 4 and the pulverized coal burner oxygen emptying valve 30 are opened from being closed, the coal slurry burner oxygen high-pressure nitrogen firewall valve 12 and the pulverized coal burner oxygen high-pressure nitrogen firewall valve 32 are closed from being opened, and the pulverized coal three-way valve 22 is in a circulating position.
The third step: system reset
Specifically, the coal slurry burner oxygen high-pressure nitrogen fire prevention wall valve 12 and the pulverized coal burner oxygen high-pressure nitrogen fire prevention wall valve 32 are opened, the coal slurry burner oxygen flow regulating valve 9 and the pulverized coal burner oxygen flow regulating valve 29 are controllable, and the coal slurry pump 1 is allowed to be started.
Specifically, a coal slurry circulation component 220, a pulverized coal circulation component 120, a coal slurry burner oxygen emptying component 200 and a pulverized coal burner oxygen emptying component 100 are built.
(1) Establishing coal slurry circulation;
specifically, a start coal slurry circulation is established, the coal slurry first cut-off valve 3 and the coal slurry second cut-off valve 5 are in a closed state, the coal slurry pump 1 is allowed to be started, the coal slurry circulation amount is established, the coal slurry flow meter 2 displays the specified value, and the coal slurry pressure is adjusted to the specified value.
(2) Establishing a pulverized coal circulation;
specifically, the start-up pulverized coal circulation is established, the pulverized coal cutoff valve 21 is in a closed state, and the pulverized coal circulation volume is established to be a preset value.
(3) Establishing oxygen emptying;
the coal slurry burner oxygen flow regulating valve 9 and the pulverized coal burner oxygen flow regulating valve 29 are controllable, and the coal slurry burner oxygen high-pressure nitrogen fire wall valve 12 and the pulverized coal burner oxygen high-pressure nitrogen fire wall valve 32 are opened from being closed. And preparing oxygen to be discharged, establishing oxygen flow, and adjusting the oxygen flow meter 8 of the coal slurry burner, the oxygen flow meter 28 of the pulverized coal burner and the oxygen pressure to a specified value.
The fourth step: first coal slurry feed assembly 211 for commissioning
(1) Starting an A/B burner button of the coal slurry burner 26, and feeding materials to an A/B burner of the gasification furnace;
specifically, a coal slurry second cut-off valve 5, a coal slurry first cut-off valve 3, a coal slurry burner oxygen second cut-off valve 13 and a coal slurry burner oxygen first cut-off valve 11 are opened, and a coal slurry circulating valve 4, a coal slurry burner oxygen high-pressure nitrogen firewall valve 12 and a coal slurry burner oxygen emptying valve 10 are closed; the coal slurry burner oxygen pipeline nitrogen valve 14 is closed after being opened for a preset time, and the coal slurry and the oxygen enter the gasification furnace 24 at the same time.
(2) Confirming that the furnace temperature of the gasification furnace 24 is firstly reduced and then increased, the system pressure is increased, the feeding of the gasification furnace 24 is successful, adjusting various process parameters, and keeping the gasification furnace 24 stable.
The fifth step: second group of slurry feed assemblies 211 for commissioning
Specifically, a C/D burner start button of the coal slurry burner 26 is started, the gasifier C/D burner is fed, the valve action is similar to that of the A/B burner, and the gasification furnace 24 is kept stable by adjusting various process parameters.
And a sixth step: pulverized coal burner feed assembly 110 commissioning
(1) Starting a start button of the pulverized coal burner 25, and feeding materials into the gasification furnace 24 through the pulverized coal burner 25;
specifically, the pulverized coal shut-off valve 21, the pulverized coal burner oxygen second shut-off valve 33 and the pulverized coal burner oxygen first shut-off valve 31 are opened, the pulverized coal three-way valve 22 is opened from the circulation position to the feeding position, the pulverized coal burner oxygen pipeline nitrogen valve 34 is opened for a preset time and then closed, the pulverized coal burner oxygen high-pressure nitrogen fire-proof wall valve 32 and the pulverized coal burner oxygen emptying valve 30 are closed, and pulverized coal and oxygen enter the gasifier 24 simultaneously.
(2) And adjusting the loads of the coal slurry and the pulverized coal to specified values, and adjusting all parameters to be normal.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a whitewashed thick liquid coupling gasifier control system that throws which characterized in that includes: a pulverized coal burner oxygen emptying component, a coal slurry burner feeding component and a pulverized coal burner feeding component which are respectively communicated with the gasification furnace, wherein,
the coal slurry burner oxygen emptying assemblies are at least provided in two groups and are respectively communicated with the gasification furnace, and the coal slurry burner oxygen emptying assemblies are used for emptying oxygen;
the pulverized coal burner oxygen emptying component is used for emptying oxygen;
the coal slurry burner feeding assemblies are at least provided with two groups and are respectively communicated with the gasification furnace, and the coal slurry burner feeding assemblies are used for feeding coal slurry and oxygen into the gasification furnace;
the pulverized coal burner feeding assembly is used for feeding pulverized coal and oxygen into the gasification furnace.
2. The charging control system of the slurry coupling gasification furnace according to claim 1, further comprising: a slurry circulation assembly and a pulverized coal circulation assembly, wherein,
the coal slurry circulating assembly is communicated with the gasification furnace through the coal slurry burner feeding assembly and is used for establishing coal slurry circulating amount;
the pulverized coal circulating assembly is communicated with the gasification furnace through the pulverized coal burner feeding assembly and is used for establishing pulverized coal circulating quantity.
3. The charging control system of slurry coupling gasification furnace according to claim 2,
the gasification furnace is provided with a pulverized coal burner and at least two coal slurry burners, wherein,
the pulverized coal burner oxygen emptying component and the pulverized coal burner feeding component are respectively communicated with the pulverized coal burner, and the pulverized coal circulating component is communicated with the pulverized coal burner through the pulverized coal burner feeding component;
each coal slurry burner is respectively communicated with one coal slurry burner oxygen emptying component and one coal slurry burner feeding component, and the coal slurry circulating component is communicated with the coal slurry burner through the coal slurry burner feeding component.
4. The charging control system of the slurry coupling gasification furnace according to claim 3,
the pulverized coal burner is arranged at the upper end of the gasification furnace along the central axis direction of the gasification furnace;
the coal slurry burners are arranged on the side wall of the gasification furnace in a direction perpendicular to the direction in which the pulverized coal burners are arranged, and at least two coal slurry burners are arranged annularly along the circumferential direction of the gasification furnace.
5. The charging control system of the slurry coupling gasification furnace according to claim 3,
the coal slurry burner feeding assembly comprises a coal slurry feeding assembly and a coal slurry burner oxygen feeding assembly, the coal slurry feeding assembly and the coal slurry burner oxygen feeding assembly are respectively communicated with the coal slurry burner, the coal slurry feeding assembly is used for feeding coal slurry into the gasification furnace, and the coal slurry burner oxygen feeding assembly is used for feeding oxygen into the gasification furnace.
6. The charging control system of the slurry coupling gasification furnace according to claim 3,
the fine coal nozzle feeding assembly comprises a fine coal nozzle feeding assembly and a fine coal nozzle oxygen feeding assembly, the fine coal nozzle feeding assembly and the fine coal nozzle oxygen feeding assembly are respectively communicated with the fine coal nozzle, the fine coal nozzle feeding assembly is used for feeding fine coal into the gasification furnace, and the fine coal nozzle oxygen feeding assembly is used for feeding oxygen into the gasification furnace.
7. The charging control system of the slurry coupling gasification furnace according to claim 3,
the coal slurry burner oxygen emptying assembly comprises a coal slurry burner oxygen flow regulating valve and a coal slurry burner oxygen emptying valve which are respectively communicated with the coal slurry burner, and the coal slurry burner oxygen emptying valve is arranged between the coal slurry burner oxygen flow regulating valve and the coal slurry burner;
the pulverized coal burner oxygen emptying assembly comprises a pulverized coal burner oxygen flow regulating valve and a pulverized coal burner oxygen emptying valve which are communicated with the pulverized coal burner respectively, and the pulverized coal burner oxygen emptying valve is arranged between the pulverized coal burner oxygen flow regulating valve and the pulverized coal burner.
8. The charging control system of the slurry coupling gasification furnace according to claim 5,
the coal slurry feeding assembly comprises a coal slurry first cut-off valve and a coal slurry second cut-off valve which are sequentially communicated with the coal slurry burner;
the coal slurry burner oxygen feeding assembly comprises a coal slurry burner oxygen flow meter, a coal slurry burner oxygen flow regulating valve, a coal slurry burner oxygen first cut-off valve, a coal slurry burner oxygen pipeline flow limiting orifice plate, a coal slurry burner oxygen check valve, a coal slurry burner central oxygen flow meter, a coal slurry burner central oxygen regulating valve and a coal slurry burner central oxygen check valve which are communicated with the coal slurry burner.
9. The charging control system of slurry coupling gasification furnace according to claim 6,
the pulverized coal feeding assembly comprises a pulverized coal flow meter, a pulverized coal three-way valve and a pulverized coal shut-off valve which are sequentially communicated with the pulverized coal burner;
the pulverized coal burner oxygen feeding assembly comprises a pulverized coal burner oxygen flow meter, a pulverized coal burner oxygen flow regulating valve, a pulverized coal burner oxygen first cut-off valve, a pulverized coal burner oxygen pipeline flow limiting orifice plate and a pulverized coal burner oxygen check valve which are sequentially communicated with the pulverized coal burner.
10. The slurry coupling gasification furnace charging control system according to any one of claims 2 to 9,
the slurry circulation assembly comprises a slurry circulation valve;
the pulverized coal circulation component comprises a pulverized coal three-way valve and a pulverized coal circulation valve.
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