CN221192085U - Chemical chain gasification device - Google Patents
Chemical chain gasification device Download PDFInfo
- Publication number
- CN221192085U CN221192085U CN202323091041.XU CN202323091041U CN221192085U CN 221192085 U CN221192085 U CN 221192085U CN 202323091041 U CN202323091041 U CN 202323091041U CN 221192085 U CN221192085 U CN 221192085U
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- Prior art keywords
- chain grate
- temperature control
- furnace body
- shaped
- chamber
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- 238000002309 gasification Methods 0.000 title claims abstract description 24
- 239000000126 substance Substances 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000002485 combustion reaction Methods 0.000 claims abstract description 25
- 238000011084 recovery Methods 0.000 claims abstract description 11
- 239000000446 fuel Substances 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 4
- 230000036760 body temperature Effects 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 12
- 238000005192 partition Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- Solid-Fuel Combustion (AREA)
Abstract
The utility model discloses a chemical chain gasification device, which comprises a gasification furnace, a water storage tank, a hot water storage tank and a water vapor generator, wherein the gasification furnace is connected with the water storage tank; the gasification furnace comprises a furnace body, wherein a heat exchange chamber and a combustion chamber are arranged in the furnace body, the arc-shaped end of a U-shaped chain grate is arranged in the furnace body and positioned in the combustion chamber, the U-shaped chain grate is arranged at two ends outside the furnace body, one end of the U-shaped chain grate is a feeding end, a feeding device is arranged above the U-shaped chain grate, the other end of the U-shaped chain grate is a discharging end, a residue recovery container is arranged below the U-shaped chain grate, a heat exchanger is arranged on the discharging end and positioned in the heat exchange chamber, one end of a water vapor pipe is arranged below the arc-shaped end of the U-shaped chain grate, the combustion chamber is divided into a first temperature control chamber, a second temperature control chamber and a third temperature control chamber by a partition plate, and the U-shaped chain grate is used for reducing the occupied area and the space of the furnace body.
Description
Technical Field
The utility model relates to a chemical chain gasification device, and belongs to the technical field of synthesis gas preparation by chemical chain gasification.
Background
Chemical looping technology is an emerging technology that enables efficient use of fuel. Chemical looping techniques include chemical looping gasification, chemical looping combustion, and chemical looping reforming. The chemical chain gasification process refers to a process of oxidizing a carbon-containing raw material and reducing and converting water into hydrogen by using a high-efficiency oxidation reactor and a reduction reactor and adopting a high-activity oxygen-carrying particle circulation mode. The main device of the chemical chain gasification process is a gasification furnace, fuel reacts in the gasification furnace, and generated combustible gas is discharged from a gas outlet. A chain grate furnace is one type of gasification furnace, and is used in many disclosed chemical chain gasification-related utility models.
The chain grate furnace mainly comprises a feeding device, a chain grate, a slag discharging device, a heat exchange device and a furnace body, raw materials fall to the chain grate from the feeding device, react and exchange heat in a combustion chamber in the furnace body along with the transmission of the grate, residues enter the slag discharging device, and gas is discharged and collected from a gas outlet.
The application number 201320303765.3 discloses an environment-friendly biomass chain grate furnace, which comprises a coal feeding device, a chain grate, a slag discharging device, a heat exchange device, a furnace body and a blast device, wherein the furnace body is divided into a combustion chamber, a heat exchange chamber and a smoke discharging channel from bottom to top. 201620638341.6 discloses a mixed fuel chain grate furnace, wherein a furnace body mainly comprises a discharging hopper, a combustion chamber, an air duct arranged at the bottom of the combustion chamber, a chain grate in the combustion chamber and an exhaust pipe. Most of the prior art adopts an in-line chain grate and is not provided with temperature control partitions, so that the combustion temperature of certain fuels cannot be controlled more accurately in complex reactions, the occupied area is large, the occupied space is large, and the heat is not recycled after heat exchange.
Disclosure of utility model
According to the chemical chain gasification device, the chain grate is U-shaped, the device space is reduced, continuous preparation of gas and recovery of residual waste heat can be realized in a smaller space, and temperature requirements of different reactions in the fuel combustion process can be met more accurately by arranging the temperature control partition.
The utility model relates to a chemical chain gasification device, which comprises a gasification furnace, a water storage tank, a hot water storage tank and a steam generator, wherein the gasification furnace comprises a furnace body, a heat exchange chamber and a combustion chamber are arranged in the furnace body, the arc-shaped end of a U-shaped chain grate is arranged in the furnace body and positioned in the combustion chamber, the U-shaped chain grate is arranged at two ends outside the furnace body, one end is a feeding end, a feeding device is arranged above the feeding end, the other end is a discharging end, a residue recovery container is arranged below the discharging end, the heat exchanger is arranged at the discharging end and positioned in the heat exchange chamber, the water storage tank is communicated with a water inlet of the heat exchanger through a water pump, the heat exchanger is respectively communicated with the hot water storage tank and the steam generator through pipelines, one end of the steam pipe is arranged below the arc-shaped end of the U-shaped chain grate, the other end is communicated with the steam generator, the U-shaped chain grate is provided with small and dense holes, the hole diameters are smaller than the fuel particle diameters, the combustion chamber is divided into a first temperature control chamber, a second temperature control chamber and a third temperature control chamber by a partition plate, the U-shaped chain grate penetrates through the partition plate, a temperature control heater is arranged in each temperature control chamber, and the furnace body is provided with a gas outlet and is positioned on the combustion chamber.
One end of the steam pipe, which is arranged below the arc-shaped end of the U-shaped chain grate, is an arc-shaped pipe with a pressurizing hole.
Valves are arranged on pipelines of the heat exchanger, the hot water storage tank, the steam generator and the water storage tank, and a gas flow control valve is arranged on the steam pipe.
An insulating layer is arranged outside the pipeline connecting the heat exchanger and the steam generator.
The working process of the chemical chain gasifier device comprises the following steps:
The fuel is added to the U-shaped chain grate of continuous transmission from the feeding device, then enters the combustion chamber, water vapor sprayed by the water vapor pipe is in contact reaction with the fuel through holes 15 on the U-shaped chain grate, and the three temperature control areas can adjust different temperatures through the temperature control heater, so that the raw materials are fully reacted; the residue after reaction enters the heat exchange chamber along with the transmission of the U-shaped chain grate, the temperature of the residue is reduced in the heat exchange chamber through the heat exchanger, the residue falls into the residue recovery container after coming out of the heat exchange chamber, and hot water enters the water vapor generating device through the pipeline after heat exchange of the heat exchanger so as to realize waste heat recovery, thereby saving energy.
The utility model has the beneficial effects that: the device utilizes the U-shaped chain grate to reduce the floor area and the space of the furnace body, and simultaneously adopts three temperature control devices to adjust the temperature of different stages of the fuel reaction, and when the reaction is completed, the heat exchange device is utilized to realize heat recovery and reutilization.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic top view of the present utility model;
Wherein: 1-water storage tank, 2-water pump, 3-hot water storage tank, 4-heat exchanger, 5-furnace body, 6-gas outlet, 7-temperature control heater, 8-steam pipe, 9-steam generator, 10-combustion chamber, 101-temperature control first chamber, 102-temperature control second chamber, 103-temperature control third chamber, 11-heat exchange chamber, 12-residue recovery container, 13-U-shaped chain grate, 14-loading device, 15-hole, 16-booster hole.
Detailed Description
The utility model will be further described with reference to the following specific embodiments.
Example 1: as shown in fig. 1 and 2, the chemical looping gasifier device of the embodiment comprises a gasifier, a water storage tank, a hot water storage tank and a steam generator, wherein the gasifier comprises a gasifier body 5, a heat exchange chamber 11 and a combustion chamber 10 are arranged in the gasifier body, the arc-shaped end of a U-shaped chain grate 13 is arranged in the gasifier body 5 and positioned in the combustion chamber 10, the U-shaped chain grate is arranged at two ends outside the gasifier body, one end is a feeding end and the upper part thereof is provided with a feeding device 14, the other end is a discharging end and the lower part thereof is provided with a residue recovery container 12, a heat exchanger 4 is arranged on the discharging end and positioned in the heat exchange chamber 11, the water storage tank 1 is communicated with the water inlet of the heat exchanger 4 through a water pump 2, the heat exchanger 4 is respectively communicated with the hot water storage tank 3 and the steam generator 9 through pipelines, valves are arranged on pipelines connected with the hot water storage tank 3, the water vapor generator 9 and the water storage tank 1 by the heat exchanger 4, one end of a water vapor pipe 8 is arranged below the arc-shaped end of the U-shaped chain grate, the other end of the water vapor pipe 8 is communicated with the water vapor generator 9, one end of the water vapor pipe 8 below the arc-shaped end of the U-shaped chain grate is an arc-shaped pipe with pressurizing holes 16, small and dense holes 15 are formed in the U-shaped chain grate, the hole diameters of the holes are smaller than the fuel particle diameters, the combustion chamber 10 is divided into a temperature control first chamber 101, a temperature control second chamber 102 and a temperature control third chamber 103 by a partition plate, a temperature control heater 7 is arranged in each temperature control chamber, a gas outlet 6 is formed in the top of the furnace body 5 and is respectively positioned on the temperature control first chamber 101, the temperature control second chamber 102 and the temperature control third chamber 103, and a gas flow control valve is arranged on the water vapor pipe 8;
The device is applied to preparing water gas (CO, H 2 synthetic gas), a U-shaped chain grate is started and rotates at the speed of 2m/H, pulverized coal fuel is added to the feeding end of the U-shaped chain grate 13 through a feeding device 14, the fuel enters a temperature-control first chamber 101 under the conveying of the transmitted U-shaped chain grate, the temperature of the temperature-control first chamber 101 is controlled to be 750-800 ℃, fuel preheating is realized in the temperature-control first chamber 101, meanwhile, water vapor sprayed out of a water vapor pipe 8 is in primary contact with the fuel through a hole 15 on the U-shaped chain grate for reaction, then enters a temperature-control second chamber 102 for further reaction, and the temperature of the temperature-control second chamber 102 is controlled to be 850-900 ℃; and then the pulverized coal enters a temperature control three-chamber, the temperature of the temperature control three-chamber is controlled to be 800-850 ℃, and the full reaction of the residual pulverized coal fuel is ensured. The steam pipe 8 continuously sprays steam throughout the combustion chamber 10; after the reaction is finished, the temperature of the fuel residues is reduced in the heat exchange chamber 11 through a heat exchanger, the residues fall into the residue recovery container 12 after coming out of the heat exchange chamber, and hot water enters the water vapor generating device 9 through a pipeline after heat exchange in the heat exchanger so as to realize waste heat recovery, thereby saving energy.
Claims (5)
1. A chemical looping gasification device, characterized in that: including gasifier, the storage water tank, the hot water storage water tank, vapor generator, wherein the gasifier includes furnace body (5), be provided with heat exchange chamber (11) in the furnace body, combustion chamber (10), U type chain grate (13) arc end setting is in furnace body (5) and is arranged in combustion chamber (10), U type chain grate setting is at the both ends outside the furnace body, one end is the feed end and its top is provided with loading attachment (14), the other end is the discharge end and its below is provided with residue recovery container (12), heat exchanger (4) set up on the discharge end and be located heat exchange chamber (11), storage water tank (1) are through water pump (2) and heat exchanger (4) water inlet intercommunication, heat exchanger (4) are through pipeline and hot water storage water tank (3), vapor generator (9) intercommunication respectively, steam pipe (8) one end sets up in U type chain grate's arc end below, the other end is with vapor generator (9) intercommunication, it has a plurality of holes (15) and aperture to be less than fuel particle diameter to open on the U type chain grate, combustion chamber (10) are by baffle one, two control room temperature control room (103), two control room (101) temperature control room (13) are located the combustion chamber (6) temperature control room temperature of fire grate, the top temperature control room (13) is located in the furnace body temperature control room (6), the top temperature control room (13) is all through the pipeline.
2. The chemical looping gasification apparatus according to claim 1, wherein: one end of the steam pipe (8) arranged below the arc-shaped end of the U-shaped chain grate is an arc-shaped pipe with a pressurizing hole (16).
3. The chemical looping gasification apparatus according to claim 1, wherein: valves are arranged on pipelines connected with the hot water storage tank (3), the steam generator (9) and the water storage tank (1) by the heat exchanger (4).
4. The chemical looping gasification apparatus according to claim 1, wherein: an insulation layer is arranged outside a pipeline connected with the heat exchanger (4) and the steam generator (9).
5. The chemical looping gasification apparatus according to claim 1, wherein: the steam pipe (8) is provided with a gas flow control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323091041.XU CN221192085U (en) | 2023-11-16 | 2023-11-16 | Chemical chain gasification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323091041.XU CN221192085U (en) | 2023-11-16 | 2023-11-16 | Chemical chain gasification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221192085U true CN221192085U (en) | 2024-06-21 |
Family
ID=91526530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323091041.XU Active CN221192085U (en) | 2023-11-16 | 2023-11-16 | Chemical chain gasification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221192085U (en) |
-
2023
- 2023-11-16 CN CN202323091041.XU patent/CN221192085U/en active Active
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