CN219429939U - Wet deslagging energy-saving system of coal gasification furnace - Google Patents
Wet deslagging energy-saving system of coal gasification furnace Download PDFInfo
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- CN219429939U CN219429939U CN202223213709.9U CN202223213709U CN219429939U CN 219429939 U CN219429939 U CN 219429939U CN 202223213709 U CN202223213709 U CN 202223213709U CN 219429939 U CN219429939 U CN 219429939U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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Abstract
The utility model discloses a wet deslagging energy-saving system of a coal gasification furnace, which comprises a gasification furnace, a chilling chamber, a variable pressure lock hopper, a normal pressure slag slurry tank and a catalyst recovery unit; the slag water chute, the slag water intermediate tank and the transmission mechanism are also included; the slag water chute is of a tubular structure with two ends closed and arranged obliquely, and a rotating shaft parallel to the length direction of the slag water chute is arranged in the slag water chute; the stirring shaft of the stirrer is in transmission connection with the rotating shaft through a transmission mechanism. The advantages are that: through setting up the sediment water elephant trunk, make sediment water get into in the sediment water elephant trunk, under the effect of gravity, flow downwards along the incline direction of sediment water elephant trunk, drive helical blade and rotation axis simultaneously and take place to rotate. In the rotating process of the rotating shaft, the stirring shaft and the stirring blades can be driven to synchronously rotate, so that ash residues of the normal-pressure slag slurry tank are prevented from sinking. The stirrer does not need to consume electric energy, so that the stirring effect can be achieved on the slag water in the normal-pressure slag slurry tank, the electricity consumption can be saved, and the running cost of the system is further reduced.
Description
Technical field:
the utility model relates to the field of coal gasification, in particular to a wet deslagging energy-saving system of a coal gasification gasifier.
The background technology is as follows:
in the coal gasification process, the structure of the existing wet slag discharging system of the medium-high pressure gasification furnace is generally shown in fig. 1, and the wet slag discharging system comprises a gasification furnace 1, a chilling chamber 2, a variable pressure lock hopper 5 and an atmospheric slag slurry tank 6. When deslagging, the first shut-off valve 41 is opened, the second shut-off valve 51 is closed, and slag in the gasifier 1 is discharged into the variable pressure lock hopper 5 through the quench chamber 2. When a certain condition is reached, the first cut-off valve 41 is closed, and slag in the gasification furnace 1 falls into the chilling chamber 2 for temporary storage; simultaneously, the pressure of the pressure-variable lock hopper 5 starts to be relieved, and when the pressure of the pressure-variable lock hopper is reduced to normal pressure, the second cut-off valve 51 is opened, so that the slag water of the pressure-variable lock hopper 5 is discharged into the normal pressure slag slurry tank 6. After the slag water in the variable pressure lock hopper 5 is discharged, the second cut-off valve 51 is closed, then the variable pressure lock hopper 5 starts to charge pressure, when the pressure is equal to the pressure in the chilling chamber 2, the first cut-off valve 41 is opened to enable the chilling chamber 2 to be communicated with the variable pressure lock hopper 5, and at the moment, the slag in the gasification furnace 1 can be discharged into the variable pressure lock hopper 5 through the chilling chamber 2, and the circulation is performed in such a way, so that the slag discharging process in the gasification furnace 1 is realized. Because the slag-water mixture in the normal pressure slag-slurry tank 6 needs to be sent to the catalyst recovery unit 7 for the next process for treatment and application, the slag-water delamination of the normal pressure slag-slurry tank 6 needs to be ensured, so that a stirring device is arranged in the normal pressure slag-slurry tank 6, and the stirring device needs to be electrically driven, thereby increasing the power consumption of the system and increasing the operation cost.
The utility model comprises the following steps:
in order to solve the problems, the utility model aims to provide a wet deslagging energy-saving system of a coal gasification gasifier.
The utility model is implemented by the following technical scheme:
a wet deslagging energy-saving system of a coal gasification furnace comprises the gasification furnace, a chilling chamber, a variable pressure lock hopper, an atmospheric pressure slurry tank and a catalyst recovery unit; the slag water chute, the slag water intermediate tank and the transmission mechanism are also included;
the slag water chute is of a tubular structure with two ends closed and arranged obliquely, the top of the slag water chute is provided with a feed inlet, and the bottom of the slag water chute is provided with a discharge outlet; a rotating shaft parallel to the length direction of the slag water chute is arranged in the slag water chute, one end of the rotating shaft is rotationally connected with the top end of the slag water chute, and the other end of the rotating shaft is rotationally connected with the bottom end of the slag water chute and extends to the outside of the slag water chute; a spiral blade is fixedly arranged on the rotating shaft in the slag water chute;
the slag outlet at the bottom of the gasification furnace is communicated with the chilling chamber through a pipeline, the slag outlet of the chilling chamber is communicated with the feed inlet of the slag water chute through a pipeline, the discharge outlet of the slag water chute is communicated with the slag water inlet of the slag water intermediate tank through a pipeline, the slag water outlet of the slag water intermediate tank is communicated with the slag water inlet of the variable pressure lock hopper through a pipeline, the slag water outlet of the variable pressure lock hopper is communicated with the slag slurry inlet of the normal pressure slag slurry tank through a pipeline, and the slag slurry outlet of the normal pressure slag slurry tank is communicated with the slag slurry inlet of the catalyst recovery unit through a pipeline;
a first cut-off valve is arranged at the slag water inlet of the variable-pressure lock hopper, and a second cut-off valve is arranged at the slag water outlet of the variable-pressure lock hopper; a slurry pump is arranged on a pipeline which is used for communicating the normal pressure slurry tank with the catalyst recovery unit;
the stirring shaft of the stirrer is in transmission connection with the rotating shaft through the transmission mechanism.
Further, the transmission mechanism comprises at least one reversing bevel gear set and at least one transmission shaft, and each reversing bevel gear set comprises two mutually meshed bevel gears.
Further, the inclination angle of the slag water chute is not smaller than the accumulation angle of slag in water.
The utility model has the advantages that:
through setting up the sediment water elephant trunk, make sediment water get into in the sediment water elephant trunk, under the effect of gravity, flow downwards along the incline direction of sediment water elephant trunk, drive helical blade and rotation axis simultaneously and take place to rotate. Because the rotation axis passes through drive mechanism and (mixing) shaft transmission connection, consequently, in the rotatory in-process of rotation axis, can drive (mixing) shaft and stirring vane synchronous rotation to make the lime-ash of ordinary pressure sediment stuff tank not sunk. The stirrer does not need to consume electric energy, so that the stirring effect can be achieved on the slag water in the normal-pressure slag slurry tank, the electricity consumption can be saved, and the running cost of the system is further reduced.
Description of the drawings:
in order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a system connection of the background art;
fig. 2 is a schematic diagram of system connection in this embodiment.
In the figure: the gasification furnace 1, the chilling chamber 2, the slag water chute 3, the helical blade 31, the rotating shaft 32, the slag water intermediate tank 4, the first cut-off valve 41, the variable pressure lock hopper 5, the second cut-off valve 51, the normal pressure slag slurry tank 6, the stirring shaft 61, the catalyst recovery unit 7, the slag slurry pump 71, the transmission mechanism 8, the bevel gear 81 and the transmission shaft 82.
The specific embodiment is as follows:
the following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1:
the wet deslagging energy-saving system of the coal gasification gasifier shown in fig. 2 comprises a gasifier 1, a chilling chamber 2, a variable pressure lock hopper 5, an atmospheric slurry tank 6 and a catalyst recovery unit 7; the slag water treatment device is characterized by further comprising a slag water chute 3, a slag water intermediate tank 4 and a transmission mechanism 8;
the slag water chute 3 is of a tubular structure which is obliquely arranged and is sealed at two ends, and the inclination angle of the slag water chute 3 is not smaller than the accumulation angle of slag in water, so that accumulation on the inner wall of the slag water chute 3 can be avoided under any condition. A feed inlet is formed in the top of the slag water chute 3, and a discharge outlet is formed in the bottom of the slag water chute 3; a rotating shaft 32 parallel to the length direction of the slag water chute 3 is arranged in the slag water chute 3, one end of the rotating shaft 32 is rotationally connected with the top end of the slag water chute 3, and the other end of the rotating shaft 32 is rotationally connected with the bottom end of the slag water chute 3 and extends to the outside of the slag water chute 3; a spiral blade 31 is fixedly arranged on a rotating shaft 32 in the slag water chute 3; in this embodiment, the rotating shaft 32 is coaxially arranged with the slag water chute 3, and the spiral blades 31 are uniformly arranged in a plane perpendicular to the rotating shaft 32 with the rotating shaft 32 as a center, so that the slag water flow is ensured to be uniform, and no severe rapid and slow change of the rotating shaft 32 can be ensured.
The slag outlet at the bottom of the gasification furnace 1 is communicated with the chilling chamber 2 through a pipeline, the slag outlet of the chilling chamber 2 is communicated with the feed inlet of the slag water chute 3 through a pipeline, the discharge outlet of the slag water chute 3 is communicated with the slag water inlet of the slag water intermediate tank 4 through a pipeline, the slag water outlet of the slag water intermediate tank 4 is communicated with the slag water inlet of the variable-pressure lock bucket 5 through a pipeline, the slag water outlet of the variable-pressure lock bucket 5 is communicated with the slag slurry inlet of the normal-pressure slag slurry tank 6 through a pipeline, and the slag slurry outlet of the normal-pressure slag slurry tank 6 is communicated with the slag slurry inlet of the catalyst recovery unit 7 through a pipeline;
a first cut-off valve 41 door is arranged at the slag water inlet of the variable-pressure lock hopper 5, and a second cut-off valve 51 door is arranged at the slag water outlet of the variable-pressure lock hopper 5; a slurry pump 71 is arranged on a pipeline which is communicated with the normal pressure slurry tank 6 and the catalyst recovery unit 7;
a stirrer is arranged in the normal pressure slurry tank 6, and a stirring shaft 61 of the stirrer is in transmission connection with the rotating shaft 32 through a transmission mechanism 8.
In this embodiment, the transmission mechanism 8 comprises three sets of steering bevel gear sets and two transmission shafts 82, each set of steering bevel gear sets comprising two intermeshing bevel gears 81.
One end of the rotating shaft 32 is fixedly connected with an inner ring of one bevel gear 81 of the first group of steering bevel gear sets, the inner ring of the other bevel gear 81 of the first group of steering bevel gear sets is fixedly connected with one end of the first transmission shaft 82, the inner ring of one bevel gear 81 of the second group of steering bevel gear sets is fixedly connected with the other end of the first transmission shaft 82, the inner ring of the other bevel gear 81 of the second group of steering bevel gear sets is fixedly connected with one end of the second transmission shaft 82, the inner ring of the one bevel gear 81 of the third group of steering bevel gear sets is fixedly connected with the other end of the second transmission shaft 82, and the inner ring of the other bevel gear 81 of the third group of steering bevel gear sets is fixedly connected with the stirring shaft 61.
The working description:
in the running process of the gasification furnace 1, slag in the gasification furnace 1 firstly enters the chilling chamber 2 to be mixed with chilled water to form slag water, the slag water enters the slag water chute 3, flows downwards along the inclined direction of the slag water chute 3 under the action of gravity, and drives the spiral blades 31 and the rotating shaft 32 to rotate. After the slag water is discharged to the slag water intermediate tank 4 from the discharge port of the slag water chute 3, a first cut-off valve 41 is arranged between the slag water intermediate tank 4 and the variable-pressure lock hopper 5; a second cut-off valve 51 is arranged between the normal pressure slurry pipe and the pressure-variable lock hopper 5;
the pressure relief device of the pressure-variable lock hopper 5 can enable the pressure-variable lock hopper 5 to be unloaded to normal pressure, and the slag water in the pressure-variable lock hopper 5 can be discharged into the normal pressure slag slurry tank 6 by opening the second cut-off valve 51; when the slag slurry in the variable-pressure lock hopper 5 is discharged, the variable-pressure lock hopper 5 can be pressurized to the same pressure as the chilling chamber 2 by utilizing the pressurizing device of the variable-pressure lock hopper 5, so that the slag in the gasifier 1 can be discharged to the chilling chamber 2 by opening the first cut-off valve 41 as the pressure of the gasifier 1, and enters the slag water intermediate tank 4 through the slag water chute 3. The slag discharging operation of the gasification furnace 1 can be realized by repeating the steps
In this embodiment, since the rotation shaft 32 is in transmission connection with the stirring shaft 61 through the transmission mechanism 8, the stirring shaft 61 and the stirring blade can be driven to rotate synchronously during the rotation of the rotation shaft 32, so that the ash in the normal pressure slurry tank 6 does not sink, and the ash can be smoothly sent to the downstream catalyst recovery unit 7 through the slurry pump 71 for subsequent application. The stirrer can play a role in stirring the slag water in the normal-pressure slag slurry tank 6 without consuming electric energy, so that the electricity consumption can be saved, and the running cost of the system can be further reduced.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (3)
1. A wet deslagging energy-saving system of a coal gasification furnace comprises the gasification furnace, a chilling chamber, a variable pressure lock hopper, an atmospheric pressure slurry tank and a catalyst recovery unit; the slag water scraper is characterized by further comprising a slag water scraper pipe, a slag water middle tank and a transmission mechanism;
the slag water chute is of a tubular structure with two ends closed and arranged obliquely, the top of the slag water chute is provided with a feed inlet, and the bottom of the slag water chute is provided with a discharge outlet; a rotating shaft parallel to the length direction of the slag water chute is arranged in the slag water chute, one end of the rotating shaft is rotationally connected with the top end of the slag water chute, and the other end of the rotating shaft is rotationally connected with the bottom end of the slag water chute and extends to the outside of the slag water chute; a spiral blade is fixedly arranged on the rotating shaft in the slag water chute;
the slag outlet at the bottom of the gasification furnace is communicated with the chilling chamber through a pipeline, the slag outlet of the chilling chamber is communicated with the feed inlet of the slag water chute through a pipeline, the discharge outlet of the slag water chute is communicated with the slag water inlet of the slag water intermediate tank through a pipeline, the slag water outlet of the slag water intermediate tank is communicated with the slag water inlet of the variable pressure lock hopper through a pipeline, the slag water outlet of the variable pressure lock hopper is communicated with the slag slurry inlet of the normal pressure slag slurry tank through a pipeline, and the slag slurry outlet of the normal pressure slag slurry tank is communicated with the slag slurry inlet of the catalyst recovery unit through a pipeline;
a first cut-off valve is arranged at the slag water inlet of the variable-pressure lock hopper, and a second cut-off valve is arranged at the slag water outlet of the variable-pressure lock hopper; a slurry pump is arranged on a pipeline which is used for communicating the normal pressure slurry tank with the catalyst recovery unit;
the stirring shaft of the stirrer is in transmission connection with the rotating shaft through the transmission mechanism.
2. The wet deslagging energy-saving system of a coal gasification furnace according to claim 1, wherein the transmission mechanism comprises at least one reversing bevel gear set and at least one transmission shaft, and each reversing bevel gear set comprises two mutually meshed bevel gears.
3. The wet deslagging energy-saving system of a coal gasification furnace according to claim 1, wherein the inclination angle of the slag water chute is not smaller than the accumulation angle of slag in water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223213709.9U CN219429939U (en) | 2022-12-01 | 2022-12-01 | Wet deslagging energy-saving system of coal gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223213709.9U CN219429939U (en) | 2022-12-01 | 2022-12-01 | Wet deslagging energy-saving system of coal gasification furnace |
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| Publication Number | Publication Date |
|---|---|
| CN219429939U true CN219429939U (en) | 2023-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223213709.9U Active CN219429939U (en) | 2022-12-01 | 2022-12-01 | Wet deslagging energy-saving system of coal gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219429939U (en) |
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2022
- 2022-12-01 CN CN202223213709.9U patent/CN219429939U/en active Active
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