CN203823748U - Ash cooler combining with fluidized beds - Google Patents
Ash cooler combining with fluidized beds Download PDFInfo
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- CN203823748U CN203823748U CN201420262392.4U CN201420262392U CN203823748U CN 203823748 U CN203823748 U CN 203823748U CN 201420262392 U CN201420262392 U CN 201420262392U CN 203823748 U CN203823748 U CN 203823748U
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- fluidized bed
- cooler
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- ash
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Abstract
The utility model discloses an ash cooler combining with fluidized beds. The ash cooler comprises a cooler body, wherein a particle outlet is formed in the bottom of the cooler body; a hot ash inlet oblique pipe and an air outlet are formed in the side wall of the cooler body; the air outlet is located above the hot ash inlet oblique pipe; a bubbling fluidized bed and a circulating fluidized bed are arranged inside the cooler; a first air guiding pipe communicated with an air distributing nozzle and a second air guiding pipe communicated with the fluidized bed are arranged on the cooler body. The ash cooler is used together with the fluidized bed combustion reactor or a coal gasification reactor, and is good in ash cooling effect.
Description
Technical field
?the utility model relates to a kind of cooler, specifically a kind of combined fluidized bed ash cooler.
Background technology
coal combustion and Coal Gasification be at high temperature operation conventionally.In combustion furnace, adopt 10 times of above air of coal consumption for burning.In coal gasification furnace, air or steam and purity oxygen are for gasification.The organic moiety of coal flue gas in combustion process is burnt or synthesized gasification in gasification furnace, and the mineral part of coal becomes as ash.As a typical mode of operation, fluidized-bed reactor operates in 800～1150 ° of C and coal ash remains on loose solid particle state.Ash is accumulated in reaction system, needs constantly from reaction system, to get rid of.The challenge of the cooling design and running that is all the time coal gasification and coal combustion systems of high temperature coal ash.Traditional cooler is designed to metal heat-exchange face, by indirectly absorbing ash content sensible heat with hydro-thermal medium.The problem that the complexity of cooler and operational reliability are normally main.Use the bed burner of fluidisation or power supply/chemical industry to use fluid bed/circle fluidized-bed gasification furnace in modern electric industry, the common operating pressure of system is high, need to, at high pressure, cooling ash, more in system and operation, add more difficulty.Solids treatment is main key link in pressure operation system, affects to a great extent the reliabilty and availability of system.
Summary of the invention
The technical problems to be solved in the utility model is to provide the combined fluidized bed ash cooler of a kind of gas-solid direct contact type high temperature coal ash, and good cooling results effectively promotes the stability of the reliability of whole device.
In order to solve the problems of the technologies described above, the utility model is taked following technical scheme:
A kind of combined fluidized bed ash cooler, comprise cooler body, described cooler body bottom is provided with particle outlet, cooler body sidewall is provided with hot grey entrance inclined tube and gas vent, gas vent is positioned at hot grey entrance inclined tube top, in cooler body, be provided with bubbling fluidized bed and recirculating fluidized bed, be provided with cloth tuyere in bubbling fluidized bed, cooler body is provided with first gas introduction tube of leading to cloth tuyere.
In described bubbling fluidized bed, be provided with dividing plate, this dividing plate will be divided into the hot-zone and the cold-zone that are connected in bubbling fluidized bed, and hot-zone communicates with hot grey entrance inclined tube.
Described recirculating fluidized bed comprises circulation fluidized bed riser, and this circulation fluidized bed riser lower end extends to bottom, upper end in cooler body and extends to cooler body top, and cooler body is provided with guides gas into the second gas introduction tube in circulation fluidized bed riser.
Described circulation fluidized bed riser bottom opening is horn-like opening.
Described circulation fluidized bed riser top is provided with circulation fluidized bed separation hood.
In described circulation fluidized bed separation hood, be provided with circulating bed dust removing device.
Described cooler body sidewall is provided with to the water jet of hot-zone water spray.
Angle between the grey entrance inclined tube of described heat and horizontal direction is 30～60 degree.
The utility model is used in conjunction with the fluidized bed plant that solid coal is converted into available gas, directly contacts with solid particle at cooler internal gas, and the gas after heat exchange can be got back to again in fluid bed and again utilize, and plays heat recovery effect, saves the energy.
Brief description of the drawings
Accompanying drawing 1 is cut structural representation open for the utility model;
Accompanying drawing 2 is the utility model example structure schematic diagram;
Accompanying drawing 3 is the combination schematic diagram of the utility model lifting and circulation fluidized bed separation hood.
Detailed description of the invention
For the ease of those skilled in the art's understanding, below in conjunction with accompanying drawing, the utility model will be further described.
As accompanying drawing 1, shown in 2 and 3, a kind of combined fluidized bed ash cooler, comprise cooler body 1, described cooler body 1 bottom is provided with particle outlet 5, cooler body 5 sidewalls are provided with hot grey entrance inclined tube 4 and gas vent 3, gas vent 3 is positioned at hot grey entrance inclined tube 4 tops, gas vent is arranged on cooler body 1 side wall upper part under normal circumstances, in cooler body 1, be provided with bubbling fluidized bed 7 and recirculating fluidized bed, in bubbling fluidized bed 7, be provided with cloth tuyere 6, cooler body 1 is provided with first gas introduction tube 11 of leading to cloth tuyere 6, gas enters into bubbling fluidized bed 7 through the first gas introduction tube 11.Angle between the grey entrance inclined tube 4 of heat and horizontal direction is 30～60 degree.The position of the first gas introduction tube can arrange as required flexibly.In bubbling fluidized bed, be provided with dividing plate 14, this dividing plate 14 will be divided into the hot-zone 15 and the cold-zone 16 that are connected in bubbling fluidized bed, and hot-zone communicates with hot grey entrance inclined tube, and hot-zone 15 and cold-zone 16 communicate, and therefore can keep the same controlling level 8.
In addition, recirculating fluidized bed comprises circulation fluidized bed riser 9, these circulation fluidized bed riser 9 lower ends extend to the interior bottom of cooler body 1, upper end extends to cooler body 1 top, cooler body 1 is provided with guides gas into the second gas introduction tube 12 in circulation fluidized bed riser, the second gas introduction tube 12 is directly introduced circulation fluidized bed riser 9 bottoms by reacting gas and is entered and risen by circulation fluidized bed riser 9 bottoms, and the solid particle in bubbling bed is along with gas enters together circulation fluidized bed riser and rises.Be provided with circulation fluidized bed separation hood 2 on circulation fluidized bed riser top, realize gas-solid initial gross separation.In circulation fluidized bed separation hood 2, be also provided with circulating bed dust removing device 10, further realize gas solid separation.Be that circulation fluidized bed riser, circulation fluidized bed separation hood and the second gas introduction tube are combined into recirculating fluidized bed.So, recirculating fluidized bed is obtained solid material from hot-zone, and the solid that collect at circulation fluidized bed top is fallen and got back to bubbling fluidized bed by gravity.Be provided with the water jet 13 to hot-zone water spray at cooler body 1 hot-zone sidewall, convenient auxiliary cooling to spraying into a certain amount of cooling water in cooler body, improve cooling effect, the particular location of water jet can be set flexibly.The position of the second gas introduction tube can be set as required flexibly, and the loudspeaker that generally guiding tube rises to expand mouthful interior and higher a little than edge at the bottom of a horn mouth position.The bottom opening of circulation fluidized bed riser 9 is made as horn-like opening, makes the bottom inlet of the second gas introduction tube can allow solid particle conveniently enter.
When the utility model cooler and coal treating apparatus are used in conjunction with as fluidized-bed gasification furnace or combustion furnace, hot grey entrance inclined tube is communicated with the high-temperature reactor bottom of coal treating apparatus, and gas vent is communicated with bottom pipeline and high-temperature reactor.From different passages; in high-temperature reactor, hot ash particle mixture after treatment enters in cooler through the grey entrance inclined tube of heat; be introduced into bubbling fluidized bed; solid particle rolls in bubbling fluidized bed; make the abundant heat exchange of solid particle and gas; heat exchange is more even, and the heat of solid particle is declined.Circulation fluidized bed can adopt the gas of larger flow and higher speed is provided, through after bubbling fluidized bed preliminary cooling, gas-solid mixture enters into circulation fluidized bed riser again, along with the gas being filled with by the second gas introduction tube enters together, continues and gas heat-shift.Heat ash obtains cooling along with climbing of height.Finally carry out one time gas solid separation at circulation fluidized bed top, the cold-zone that turns back to bubbling bed of part first separation, the solid of another first separation falls into hot-zone, and the fine powder thing that circulating bed dust removing device is collected is discharged to cold-zone through dipleg, solid turns back to circulation fluidized bed riser bottom and discharges through particle outlet, and gas enters into high-temperature reactor and recycles.Can also in cooler, spray into a certain amount of cooling water, strengthen cooling effect.Cooled particle can be discharged by the particle outlet of bottom, cooler cold-zone.
Claims (8)
1. a combined fluidized bed ash cooler, comprise cooler body (1), it is characterized in that, described cooler body bottom is provided with particle outlet (5), cooler body sidewall is provided with hot grey entrance inclined tube (4) and gas vent (3), gas vent is positioned at hot grey entrance inclined tube top, in cooler body, be provided with bubbling fluidized bed (7) and recirculating fluidized bed, in bubbling fluidized bed, be provided with one group of cloth tuyere (6), cooler body is provided with first gas introduction tube (11) of leading to cloth tuyere.
2. combined fluidized bed ash cooler according to claim 1, it is characterized in that, in described bubbling fluidized bed, be provided with dividing plate (20), this dividing plate will be divided into the hot-zone (15) and cold-zone (16) that are connected in bubbling fluidized bed, and hot-zone communicates with hot grey entrance inclined tube.
3. combined fluidized bed ash cooler according to claim 1 and 2, it is characterized in that, described recirculating fluidized bed comprises circulation fluidized bed riser (9), this circulation fluidized bed riser lower end extends to bottom, upper end in cooler body and extends to cooler body top, and cooler body is provided with guides gas into the second gas introduction tube (12) in circulation fluidized bed riser.
4. combined fluidized bed ash cooler according to claim 3, is characterized in that, described circulation fluidized bed riser bottom opening is horn-like opening.
5. combined fluidized bed ash cooler according to claim 4, is characterized in that, described circulation fluidized bed riser top is provided with circulation fluidized bed separation hood (2).
6. combined fluidized bed ash cooler according to claim 5, is characterized in that, is provided with circulating bed dust removing device (10) in described circulation fluidized bed separation hood.
7. combined fluidized bed ash cooler according to claim 6, is characterized in that, described cooler body sidewall is provided with the water jet (13) of (15) water spray to hot-zone.
8. combined fluidized bed ash cooler according to claim 7, is characterized in that, the angle between the grey entrance inclined tube of described heat and horizontal direction is 30～60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420262392.4U CN203823748U (en) | 2014-05-22 | 2014-05-22 | Ash cooler combining with fluidized beds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420262392.4U CN203823748U (en) | 2014-05-22 | 2014-05-22 | Ash cooler combining with fluidized beds |
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| Publication Number | Publication Date |
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| CN203823748U true CN203823748U (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420262392.4U Active CN203823748U (en) | 2014-05-22 | 2014-05-22 | Ash cooler combining with fluidized beds |
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| CN (1) | CN203823748U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112334584A (en) * | 2018-07-11 | 2021-02-05 | 安赛乐米塔尔公司 | Method for controlling the cooling of flat metal products |
| JP2021529886A (en) * | 2018-07-11 | 2021-11-04 | アルセロールミタル | Heat transfer methods and related equipment |
-
2014
- 2014-05-22 CN CN201420262392.4U patent/CN203823748U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112334584A (en) * | 2018-07-11 | 2021-02-05 | 安赛乐米塔尔公司 | Method for controlling the cooling of flat metal products |
| JP2021529886A (en) * | 2018-07-11 | 2021-11-04 | アルセロールミタル | Heat transfer methods and related equipment |
| JP2021531402A (en) * | 2018-07-11 | 2021-11-18 | アルセロールミタル | How to control the cooling of flat metal products |
| JP7232313B2 (en) | 2018-07-11 | 2023-03-02 | アルセロールミタル | How to control the cooling of flat metal products |
| JP7324270B2 (en) | 2018-07-11 | 2023-08-09 | アルセロールミタル | Heat transfer method and related equipment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |