CN206570283U - A kind of Dual-Phrase Distribution of Gas olid pyroreaction system particles retracting device - Google Patents
A kind of Dual-Phrase Distribution of Gas olid pyroreaction system particles retracting device Download PDFInfo
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- CN206570283U CN206570283U CN201720131556.3U CN201720131556U CN206570283U CN 206570283 U CN206570283 U CN 206570283U CN 201720131556 U CN201720131556 U CN 201720131556U CN 206570283 U CN206570283 U CN 206570283U
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- cyclone separator
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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
- Y02P20/10—Process efficiency
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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
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model discloses a kind of Dual-Phrase Distribution of Gas olid pyroreaction system particles retracting device.Described device includes gasification furnace, the gasification furnace is connected by the first cyclone separator, the second cyclone separator with the useless pot of high temperature, the useless pot of high temperature is connected with the useless pot of convection current, high temperature gives up pot, the useless pot of convection current with being connected at the top of grey warehouse, grey warehouse is sequentially connected ash circulation lock hopper, flying dust sending cans, flying dust sending cans and gasification furnace；The top of the useless pot of convection current and soot blower is connected, and soot blower is connected with the top of grey warehouse.The utility model employs full-dry method ash discharge and deslagging, arranged flying dust is all re-circulated into gasification furnace and realizes second gasification, and the unified form with slag discharges gasification furnace after gasification, efficiency of carbon con version is greatly improved, efficiency of energy utilization is realized to maximize and water resources consumption minimumization, suitable for the industry fuel gas preparation system such as ceramics, Industrial Stoves, glass furnace, steel-making, with the bright prospects as coal fuel gas station owner's Flow Technique.
Description
Technical field
The utility model is related to a kind of Dual-Phrase Distribution of Gas olid pyroreaction system particles retracting device, belongs to Coal Gasification Technology neck
Domain.
Background technology
With the continuous improvement of environmental requirement, traditional static bed coal gasification fuel gas and fixed bed coal gas producer system
Unstripped gas technology will be because the problems such as environmental requirement is not up to standard, environmental protection treatment is costly, will gradually be eliminated.But, natural gas money
The country of source scarcity relatively still wishes selection coal as alternate resources, therefore traditional coal gasification urgent need obtains upgrading and changed
Generation, market capacity is huge.
Because fuel gas industry is mainly used as the not high low heat value of waste relative requirement using colm and low-order coal
Fuel gas, therefore in terms of gasification technology, the forced air bed gasification technology for having been carried out maximization can not meet technology
Cost-effectiveness requirement, its huge investment and operating cost are generally acknowledged by industry.
Fluidized gasification is as one of technology recycled after coal is gasified earliest, for the profit of the low-order coals such as lignite
With with unique advantage, low-order coal relatively more economically feasible is handled similar to fluidized-bed combustion boiler.Therefore, at fluidized gasification
Managing the low-order coals such as lignite has generally acknowledged advantage as follows：
1st, powder and particle mixed feeding, prepared by raw material and feeding system is relatively easy；
2nd, high water content brown coal can be handled, relatively low is required to raw material calorific value, ash content and ash fusion point；
3rd, output flow rate is higher, and system effectiveness is relatively low；
4th, oxygen-enriched or air gasification can be used, public work is simple, invests low.
But, fluidized gasification belongs to high temperature gasification dry method ash discharge/slag technology, and there are the following problems：
1st, system efficiency of carbon con version is low；
2nd, unburned carbon in flue dust is high, is difficult to utilize directly as construction material；
3rd, fly ash granule is superfine, and shipping storage difficulty is big；
4th, system reliability is low.
The phosphorus content of flying dust is typically up to 70% or so, and it has had a strong impact on system effectiveness and output, makes unit output
Consumed than oxygen and more high than coal consumption, and cause live dust pollution, how to solve the gasification of ciculation fluidized bed gasification system
Flying dust has become the key element for restricting ciculation fluidized bed gasification technology development.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of Dual-Phrase Distribution of Gas olid pyroreaction system particles recovery side
Method and device, place dust pollution.
In order to solve the above-mentioned technical problem, to there is provided a kind of Dual-Phrase Distribution of Gas olid high temperature anti-for the technical solution of the utility model
Answer system particles retracting device, including gasification furnace, the both sides of gasification furnace provided with two spray guns, be connected with gasification furnace to dipleg,
Feed back leg, gasification furnace bottom is provided with air compartment wind entrance, central tube, scum pipe, and deslagging bottom of the tube is slag-drip opening, and scum pipe is provided with
Deslagging manage-style entrance, it is characterised in that the gasification furnace passes through the useless pot of the first cyclone separator, the second cyclone separator and high temperature
Connection, the bottom of the useless pot of high temperature and the top of the useless pot of convection current are connected, and high temperature gives up pot, the bottom of the useless pot of convection current by grey lock hopper two
With being connected at the top of grey warehouse, grey warehouse is sequentially connected the spray gun of ash circulation lock hopper, flying dust sending cans, flying dust sending cans and gasification furnace
One or central tube connection；The bottom of the useless pot of convection current and the top of soot blower are connected, and the top of soot blower is exported provided with raw gas, is removed
The bottom of grey device is connected by grey lock hopper three with the top of grey warehouse；
Connected mode between the useless pot of gasification furnace, the first cyclone separator, the second cyclone separator and high temperature is following
One of two ways：
The top of gasification furnace connects the first cyclone separator, and the top of the first cyclone separator connects the second cyclonic separation
Top at the top of device, the second cyclone separator with the useless stove of high temperature is connected, and the bottom of the first cyclone separator is provided with flue-dust retainer one, collection
Ash bucket one connects material returning device one, and material returning device one connects the feed back leg one of gasification furnace；The bottom of second cyclone separator is provided with collection ash
Bucket two, flue-dust retainer two is connected by grey lock hopper one with the top of grey warehouse；
Or the top of gasification furnace connects the first cyclone separator, the top of the first cyclone separator connects the second whirlwind point
From device, the top at the top of the second cyclone separator with the useless stove of high temperature is connected, and the bottom of the first cyclone separator is provided with flue-dust retainer one,
Flue-dust retainer one connects material returning device one, and material returning device one connects the feed back leg one of gasification furnace；The bottom of second cyclone separator is provided with collection
Ash bucket two, the connection material returning device two of flue-dust retainer two, material returning device two connects the feed back leg two of gasification furnace.
Preferably, all grey lock hoppers are connected by flying dust air lift cooling tank with the top of grey warehouse.
Preferably, all grey lock hoppers and the grey warehouse, ash circulation lock hopper, flying dust sending cans are interior provided with insulated lining.
The particle of main loop is respectively from the first cyclone separator, the second cyclone separator, the useless pot of high temperature in the device
Bottom ash discharge and soot blower ash discharge.
The flying dust air lift cooling tank is used for 950 DEG C of the second cyclone separator bottom ash, the useless the bottom of a pan ash of 500 DEG C of high temperature
Cooling down is carried out to 80 DEG C with the mixture of 200 DEG C of soot blower bottom ash.
The flying dust warehouse can ensure the flying dust Coutinuous store of 6~10 hours as being collected after three road flying dust coolings temporarily.
The second described cyclone separator can be using independent material returning device independence feed back to gasification according to coal dust burdening difference
Stove carries out second gasification, realizes the particle circulation and stress of the part.
The setting of flying dust air lift cooling tank, or the equipment such as grey lock hopper, grey warehouse and grey sending cans use insulated lining, be for
Resistance high temperature flying dust high temperature.
The utility model stable and reliable operation, be easy to maximization amplification, environmental protection and energy saving, compared with prior art, this practicality newly
Type has the advantages that：
(1) the utility model recycles gasification using ciculation fluidized bed gasification system flying dust, realizes total system flying dust zero-emission
Put, and use dry process process, no water consume, no dust pollution；
(2) flying dust carbon residue is further gasified in system after flying dust recycling, and coal ash content passes through bottom ash form completely
Discharge, system efficiency of carbon con version obtains larger raising；
(3) flying dust process recycling is independently arranged using a plurality of line, operates more flexible, especially the second cyclone separator
Independent loops return the setting of gasification furnace, can avoid the influence to the first cyclone separator, operate simpler.
Brief description of the drawings
Fig. 1 is the schematic diagram for the Dual-Phrase Distribution of Gas olid pyroreaction system particles retracting device that embodiment 1 is provided；
Fig. 2 is the schematic diagram for the Dual-Phrase Distribution of Gas olid pyroreaction system particles retracting device that embodiment 2 is provided；
Fig. 3 is the schematic diagram for the Dual-Phrase Distribution of Gas olid pyroreaction system particles retracting device that embodiment 3 is provided.
Embodiment
To become apparent the utility model, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Embodiment 1
As shown in figure 1, a kind of Dual-Phrase Distribution of Gas olid pyroreaction system particles retracting device provided for the present embodiment, it is wrapped
Gasification furnace 1 is included, the both sides of gasification furnace 1, which are provided with two spray guns, gasification furnace 1, to be connected with to dipleg 3, feed back leg, the bottom of gasification furnace 1
Provided with air compartment wind entrance 6, central tube 9, scum pipe, deslagging bottom of the tube is slag-drip opening 8, and scum pipe is provided with deslagging manage-style entrance 7.
The gasification furnace 1 is connected by the first cyclone separator 10, the second cyclone separator 11 with the useless pot 13 of high temperature, the useless pot 13 of high temperature
The give up top of pot 14 of bottom and convection current be connected, high temperature give up pot 13, convection current give up pot 14 bottom by the grey 17b of lock hopper two and grey storage
The top of storehouse 19 is connected, and grey warehouse 19 is sequentially connected ash circulation lock hopper 20, flying dust sending cans 23, flying dust sending cans 23 and gasification furnace 1
Central tube 9 connect；The bottom of the useless pot 14 of convection current is connected with the top of soot blower 15, and the top of soot blower 15 goes out provided with raw gas
Mouth 16, the bottom of soot blower 15 is connected by the grey 17c of lock hopper three with the top of grey warehouse 19.All grey lock hoppers pass through flying dust
Air lift cooling tank 18 is connected with the top of grey warehouse 19.
Connected mode between the useless pot 13 of gasification furnace 1, the first cyclone separator 10, the second cyclone separator 11 and high temperature
For：The top of gasification furnace 1 connects the first cyclone separator 10, and the top of the first cyclone separator 10 connects the second cyclone separator
11, the top of the second cyclone separator 11 is connected with the top of the useless pot 13 of high temperature, and the bottom of the first cyclone separator 10 is provided with collection ash
Struggle against a 12a, the 4a of one 12a connections material returning device of flue-dust retainer one, the 5a of feed back leg one of the 4a connections gasification furnace 1 of material returning device one；Second whirlwind
The bottom of separator 11 is connected provided with flue-dust retainer two 12b, the 12b of flue-dust retainer two by the grey 17a of lock hopper one with the top of grey warehouse 19.
A kind of Dual-Phrase Distribution of Gas olid pyroreaction system particles recovery method：
Step 1：The particle of raw gas entrainment is separated in the first cyclone separator 10 first, and particle directly passes through feed back
Device and transfer pipeline return to gasification furnace from the side of gasification furnace 1；
Step 2：The raw gas and the particle of entrainment come out from the first cyclone separator 10 enters the second cyclone separator 11,
The particle separated in the second cyclone separator 11 directly returns gasification furnace 1 by material returning device, or is arranged by the grey 17a of lock hopper one
Ash enters the ash charge circulatory system；
Step 3：The grey solid impurity particle of raw gas entrainment enters the useless pot 13 of high temperature from the outlet of the second cyclone separator 11, and high temperature gives up
Pot 13 uses vertical, and the grey solid impurity particle in part is under gravitational settling effect in the useless bottom deposit of pot 13 of high temperature, the part lime-ash
Particle cools down laggard ash charge warehouse 19 by the grey 17b of lock hopper two decompressions and flying dust air lift cooling tank 18；Air lift cool down gas 22 from fly
The grey bottom of air lift cooling tank 18 enters tank body；
Step 4：Raw gas removes most particles by soot blower 15, granule content in raw gas is down to 20mg/
N·m3Hereinafter, the bottom flying dust of soot blower 15 cools down laggard ash charge by the grey 17c of lock hopper three decompressions and flying dust air lift cooling tank 18 and stored up
Storehouse 19；
Step 5：Fly ash granule passes sequentially through ash circulation lock hopper 20 and flying dust sending cans 23 in grey warehouse 19, in conveying gas 21
In the presence of ash particle is delivered to again gasification furnace 1 central tube 9 or the side of gasification furnace 1 the 2a of spray gun one enter gasification furnace 1
Inside regasify.Ash circulation lock hopper 20 is sent ash by being pressurizeed after ash from grey warehouse 19 to flying dust sending cans 23, and flying dust is normal from grey warehouse 19
Pressure condition goes to pressurized state and delivers to flying dust sending cans 23, ensures that flying dust can continuous pressure transmission.
The fly ash granule average grain diameter that second cyclone separator 11 is separated is 50 microns, and temperature is 950 DEG C；The height
The mean particle size of the useless bottom ash of pot 13 of temperature and the bottom ash of soot blower 15 is 30 microns, and temperature is 500 DEG C.
By taking the recirculating fluidized bed gasification process system for handling 500 tons of amount of coal (empty butt) in a set of day as an example.The coal of bunker coal
Prime number evidence is shown in Table 1.The design parameter of gasification reactor apparatus is as follows：
Operating pressure：0.4MPaG；
Operation temperature：1000℃；
Gasifying agent：Oxygen-enriched 35% and water vapour；
Broken coal fuel particle diameter：0~15mm, average grain diameter 6mm, gross mass accounting 50%；
Circulate particle size of fly ash：0~200 μm, 65 μm of average grain diameter, gross mass accounting 35% is conveyed using superheated vapour；
Low slag is all sent outside battery limit (BL) as construction material.
Residual neat recovering system richness production superheated steam grade：1.6MPa, about 320 DEG C, 28t/h.
Table 1
Gasification reaction exiting syngas predominant gas is constituted：
CO：22.26；H2：24.13；CH4：3.05；CO2：13.26；H2O：7.97；N2：29.27
Synthesize throughput：59287Nm3/h；
Synthesis gas temperature：992℃；
Water vapour is consumed：6450kg/h；
Oxygen is consumed：7526kg/h；
Nitrogen is consumed：19966Nm3/h；
Gasification system efficiency of carbon con version：98.5%；
Efficiency of energy utilization：92%；
Flying dust output：2.07t/h, has higher combustibility containing carbon residue 65%, all send gasification furnace, ashless discharge.
It can draw, be reclaimed using particle after regasifying, described recirculating fluidized bed gasification process system from data above
And its gasification process is better than domestic and international similar technique on the consumption indicators such as oxygen consumption, water vapour consumption, efficiency of carbon con version is higher by
More than about 5 percentage points, operation temperature is moderate, when using fine coal and broken coal feed vaporization simultaneously is realized, flying dust back boiler fires
Efficiency of carbon con version is burnt up to more than 98%, and simultaneously harmless treatment can be utilized as building materials by producing cinder.Full residual neat recovering system makes thermal effect
Rate improves 10~15%, and water consume is preferably minimized, and total system is without sewage and discharge of wastewater, and realizing ultra-clean coal gasifying process will
Ask.
In summary, the utility model is applicable to provide valency of fine quality for industries such as ceramics, Industrial Stoves, glass, steel-making
Honest and clean fuel gas, substitutes high-priced gas and the fixed bed coal gas producer device of high pollution.
Embodiment 2
As shown in Fig. 2 a kind of Dual-Phrase Distribution of Gas olid pyroreaction system particles retracting device provided for the present embodiment, its with
The difference of embodiment 1 is that flying dust sending cans 23 are connected with the 2a of spray gun one of gasification furnace 1.
Embodiment 3
As shown in figure 3, a kind of Dual-Phrase Distribution of Gas olid pyroreaction system particles retracting device provided for the present embodiment, its with
The difference of embodiment 1 is, gasification furnace 1, the first cyclone separator 10, the second cyclone separator 11 and high temperature give up pot 13 it
Between connected mode be：The top of gasification furnace 1 connects the first cyclone separator 10, the top connection of the first cyclone separator 10 the
Two cyclone separators 11, the top of the second cyclone separator 11 is connected with the top of the useless pot 13 of high temperature, the first cyclone separator 10
Bottom is provided with the 12a of flue-dust retainer one, the 4a of one 12a connections material returning device of flue-dust retainer one, the feed back leg one of the 4a connections gasification furnace 1 of material returning device one
5a；The bottom of second cyclone separator 11 is provided with the 12b of flue-dust retainer two, two 12b connections material returning device of flue-dust retainer two 4b, the 4b of material returning device two
Connect the 5b of feed back leg two of gasification furnace 1.
Claims (3)
1. a kind of Dual-Phrase Distribution of Gas olid pyroreaction system particles retracting device, including gasification furnace (1), the both sides of gasification furnace (1) are set
Have and be connected with two spray guns, gasification furnace (1) to dipleg (3), feed back leg, gasification furnace (1) bottom provided with air compartment wind entrance (6),
Central tube (9), scum pipe, deslagging bottom of the tube are slag-drip opening (8), and scum pipe is provided with deslagging manage-style entrance (7), and its feature exists
In, the gasification furnace (1) is connected by the first cyclone separator (10), the second cyclone separator (11) with the useless pot (13) of high temperature,
The top of high temperature gives up the bottom of pot (13) and convection current is given up pot (14) be connected, high temperature give up pot (13), the useless pot (14) of convection current bottom it is equal
By grey lock hopper two (17b) with being connected at the top of grey warehouse (19), grey warehouse (19) is sequentially connected ash circulation lock hopper (20), flying dust hair
Tank sending (23), flying dust sending cans (23) are connected with the spray gun one (2a) or central tube (9) of gasification furnace (1)；Convection current is given up pot (14)
Bottom is connected with the top of soot blower (15), and the top of soot blower (15) is provided with raw gas outlet (16), the bottom of soot blower (15)
Portion is connected by grey lock hopper three (17c) with the top of grey warehouse (19)；
Connection side between the useless pot (13) of gasification furnace (1), the first cyclone separator (10), the second cyclone separator (11) and high temperature
Formula is one of following two ways：
The top of gasification furnace (1) connects the first cyclone separator (10), and the top connection second of the first cyclone separator (10) is revolved
Top at the top of wind separator (11), the second cyclone separator (11) with the useless pot (13) of high temperature is connected, the first cyclone separator
(10) bottom is provided with flue-dust retainer one (12a), flue-dust retainer one (12a) connection material returning device one (4a), material returning device one (4a) connection gas
Change the feed back leg one (5a) of stove (1)；The bottom of second cyclone separator (11) is provided with flue-dust retainer two (12b), flue-dust retainer two (12b)
It is connected by grey lock hopper one (17a) with the top of grey warehouse (19)；
Or the top of gasification furnace (1) connects the first cyclone separator (10), the top connection the of the first cyclone separator (10)
Top at the top of two cyclone separators (11), the second cyclone separator (11) with the useless pot (13) of high temperature is connected, the first cyclonic separation
The bottom of device (10) is provided with flue-dust retainer one (12a), flue-dust retainer one (12a) connection material returning device one (4a), material returning device one (4a) connection
The feed back leg one (5a) of gasification furnace (1)；The bottom of second cyclone separator (11) is provided with flue-dust retainer two (12b), flue-dust retainer two
(12b) connection material returning device two (4b), the feed back leg two (5b) of material returning device two (4b) connection gasification furnace (1).
2. Dual-Phrase Distribution of Gas olid pyroreaction system particles retracting device as claimed in claim 1, it is characterised in that all ashes
Lock hopper is connected by flying dust air lift cooling tank (18) with the top of grey warehouse (19).
3. Dual-Phrase Distribution of Gas olid pyroreaction system particles retracting device as claimed in claim 1, it is characterised in that all ashes
Lock hopper and the grey warehouse (19), ash circulation lock hopper (20), flying dust sending cans (23) are interior provided with insulated lining.
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| CN201720131556.3U CN206570283U (en) | 2017-02-14 | 2017-02-14 | A kind of Dual-Phrase Distribution of Gas olid pyroreaction system particles retracting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675659A (en) * | 2017-02-14 | 2017-05-17 | 上海锅炉厂有限公司 | Particle recovering device and method of high-temperature reaction system of gas-solid two phase flow |
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- 2017-02-14 CN CN201720131556.3U patent/CN206570283U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675659A (en) * | 2017-02-14 | 2017-05-17 | 上海锅炉厂有限公司 | Particle recovering device and method of high-temperature reaction system of gas-solid two phase flow |
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