CN201548016U - Fluidized-bed type lignite drying and quality raising device - Google Patents
Fluidized-bed type lignite drying and quality raising device Download PDFInfo
- Publication number
- CN201548016U CN201548016U CN 200920245442 CN200920245442U CN201548016U CN 201548016 U CN201548016 U CN 201548016U CN 200920245442 CN200920245442 CN 200920245442 CN 200920245442 U CN200920245442 U CN 200920245442U CN 201548016 U CN201548016 U CN 201548016U
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- hothouse
- drying
- air compartment
- brown coal
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Abstract
The utility model provides a fluidized-bed type lignite drying and quality raising device, comprising a drying chamber (9), wherein a wind chamber (8) is arranged at the lower of the drying chamber (9), an air distribution plate (6) with a hood is arranged between the wind chamber (8) and the drying chamber (9), the air distribution plate (6) is inclinedly arranged from a feeding tube to a discharging tube, the lower in the drying chamber (9) is a cross-section variable structure with smaller bottom sectional area and bigger upper sectional area, and may be a constant section structure; the lignite to be dried from the feeding tube (2) uniformly enters into a drying device (1) through a distributor (3); and the high-temperature dried medium through the air distribution plate (6) and with certain temperature uniformly enters into the drying device (1), and the lignite to be dried is fluidized and dried. The device of the utility model has features of perfect drying effect, reliable operation and simple system.
Description
Technical field
The utility model relates to a kind of drying and upgrading device, is specifically related to a kind of fluidized bed type brown coal drying and upgrading device.
Background technology
Brown coal are the minimum coals of degree of coalification, form for peat changes under modest pressure, degree of coalification between peat and bituminous coal, water content height, easy-weathering in air; Contain a certain amount of original humic acid; Phosphorus content is low, the oxygen content height, and hydrogen content changes greatly; Volatile matter generally between 45～55%, easily spontaneous combustion.Predict according to international geologist: whole world hard coal (comprising bituminous coal and anthracite) oil in place is about 6,000,000,000,000 t, accounts for 60% of coal gross reserves; The brown coal oil in place has 4,000,000,000,000 t approximately, accounts for coal reserves 40%.Wherein, the explored brown coal gross reserves of China reaches 1,303 hundred million t.
The characteristics of high volatile, high-moisture, low heat value, low ash smelting point cause brown coal to have easy spontaneous combustion, easy-weathering, are not easy to shortcomings such as storage, transportation, greatly reduce its value.
Therefore, the drying and upgrading technology is one of lignite resource important development direction of being fully used.After the brown coal dehydration, its quality is improved, and will more help utilizing, transports and store.The a large amount of designs of China's active service use the unit of bituminous coal, because coal source situation changes, fuel is in short supply, and cost is not according to height not down.If the fuel that can utilize brown coal drying to make is not carrying out under the situation of big technological transformation former boiler unit, directly mix to burn and use, can effectively utilize lignite resource, significantly improve the value of brown coal, be of great practical significance and good and economic.
Simultaneously, in the raw coal washing process, a large amount of coal slimes of association, directly utilization ratio is low, and is not easy to transportation, and its drying and upgrading also is very important.
Existing brown coal drying and upgrading device comprises tubular type steam dryer etc., and its technology is: high-temperature steam is in pipe, and brown coal carry out indirect heat exchange and reach the purpose of brown coal drying outside pipe.But because employing is indirect heat exchange, there is the low shortcoming of heat exchange efficiency, needs bigger heat exchange area, in order to reach desirable drying effect, need control brown coal granularity less than 3mm, the transportation of upgrading brown coal for convenience simultaneously, need carry out forming processes to the upgrading brown coal, energy consumption is bigger.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provides that a kind of drying effect is good, reliable, the simple fluidized bed type brown coal drying and upgrading device of system.
The technical solution of the utility model is achieved in that a kind of fluidized bed type brown coal drying and upgrading device, comprise hothouse 9, air compartment 8 is arranged in hothouse 9 bottoms, arrange the air distribution plate 6 that has blast cap between air compartment 8 and the hothouse 9, in the hothouse 9 more than one partition wall 5 can be set, partition wall 5 is divided into plural sub-hothouse with hothouse 9, in the air compartment 8 more than one air compartment baffle 11 can be set, air compartment baffle 11 is divided into plural sub-air compartment with air compartment 8, be connected with feed pipe 2 on the hothouse 9, drainage conduit 12, discharge pipe 10, feed pipe 2 lower disposed distributing devices 3, fluidizing agent flow duct 7 is connected with air compartment 8, the air distribution plate 6 of hothouse 9 inside is to drainage conduit from feed pipe and is in tilted layout, hothouse 9 interior lower end are that the bottom section is long-pending little, the variable section structure up and down that the top sectional area is big also can be the uiform section structure.
Feed pipe 2 is arranged in the top or the upper lateral part of hothouse 9.
The distributing device 3 of feed pipe 2 bottoms be shaped as down infundibulate or other helps the equally distributed structure of material.
The utlity model has following advantage:
1, the present invention can carry out the drying of multiple high moisture material such as brown coal, coal slime etc., and drying medium can adopt air, flue gas or other drying mediums that has uniform temperature.
2, can be according to the granularity and the dried moisture requirement of material to be dried, the structure of flexible design partition wall, installation site and layout quantity.
3 according to different raw meal particle sizes, design different air distribution plates and bottom variable section structure, and the fluidisation that can realize wide-size distribution brown coal particle is with dry.
4, adopt variable section structure, bottom fluidising air velocity height, guarantee the fluidisation of material, the top fluidizing velocity is low, can effectively reduce the ratio that fine granular materials is taken out of drying device, guarantees the productive rate of dry finished product.
5, the setting of material inlet below distributing device can make material to be dried evenly enter drying device.
Description of drawings
Fig. 1 is a structural front view of the present utility model.
Fig. 2 is a structure left view of the present utility model.
Fig. 3 is a structure vertical view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and operation principle are elaborated.
A kind of fluidized bed type brown coal drying and upgrading device, comprise hothouse 9, air compartment 8 is arranged in hothouse 9 bottoms, arrange the air distribution plate 6 that has blast cap between air compartment 8 and the hothouse 9, in the hothouse 9 more than one partition wall 5 can be set, partition wall 5 is divided into plural sub-hothouse with hothouse 9, in the air compartment 8 more than one air compartment baffle 11 can be set, air compartment baffle 11 is divided into plural sub-air compartment with air compartment 8, be connected with feed pipe 2 on the hothouse 9, drainage conduit 12, discharge pipe 10, feed pipe 2 lower disposed distributing devices 3, fluidizing agent flow duct 7 is connected with air compartment 8, the air distribution plate 6 of hothouse 9 inside is that level or be is in tilted layout from feed pipe to drainage conduit, and hothouse 9 interior lower end can be long-pending little for the bottom section, the variable section structure up and down that the top sectional area is big also can be the uiform section structure.
Operation principle of the present utility model is: the brown coal to be dried by the feed pipe 2 on the utility model top feeds through behind the distributing device 3, evenly enter drying device 1; Pass the high temperature drying medium that has uniform temperature (air or flue gas) of air distribution plate 6, evenly enter drying device 1, with brown coal fluidisation to be dried and carry out drying; In drying, brown coal are moved to drainage conduit 12 by feed pipe 2 gradually, and the material that granularity is bigger moves gradually from partition wall 5 bottoms that are arranged on drying device 1, and the less material of granularity climbs over partition wall 5, move to drainage conduit 12 gradually, both are finally discharged by drainage conduit 12; The rotation blow-off valve is established in drainage conduit 12 bottoms, avoids fluidizing agent to enter device for transporting objects; Dried gas is discharged through after the dedusting by air outlet.
The utility model is reasonable in design can effectively realize the wide-size distribution brown coal fluidisation, carry with dry, make the brown coal behind the drying and upgrading more help storage, transportation and utilization.
Adopt fluidization to carry out the drying of high moisture material, can give full play to that its contact area is big, heat and mass efficient height, advantage that drying effect is good, and system is simple and reliable.
Claims (4)
1. fluidized bed type brown coal drying and upgrading device, comprise hothouse (9), air compartment (8) is arranged in hothouse (9) bottom, arrange the air distribution plate (6) that has blast cap between air compartment (8) and the hothouse (9), it is characterized in that, in the hothouse (9) more than one partition wall (5) can be set, partition wall (5) is divided into plural sub-hothouse with hothouse (9), in the air compartment (8) more than one air compartment baffle (11) can be set, air compartment baffle (11) is divided into plural sub-air compartment with air compartment (8), be connected with feed pipe (2) on the hothouse (9), drainage conduit (12), discharge pipe (10), drying medium pipeline (7) is connected with air compartment (8), feed pipe (2) lower disposed distributing device (3), the inner air distribution plate (6) of hothouse (9) is that level or be is in tilted layout from feed pipe to drainage conduit, hothouse (9) interior lower end can be long-pending little for the bottom section, the variable section structure up and down that the top sectional area is big also can be the uiform section structure.
2. want 1 described fluidized bed type brown coal drying and upgrading device according to right, it is characterized in that, feed pipe (2) is arranged in the top or the upper lateral part of hothouse (9).
3. according to claims 1 described fluidized bed type brown coal drying and upgrading device, it is characterized in that, the distributing device (3) of feed pipe (2) bottom be shaped as down infundibulate or other helps the equally distributed structure of material.
4. fluidized bed type brown coal drying and upgrading device according to claim 1 is characterized in that, drainage conduit (12) is arranged in the bottom or the side lower part of (9) of hothouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920245442 CN201548016U (en) | 2009-11-25 | 2009-11-25 | Fluidized-bed type lignite drying and quality raising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920245442 CN201548016U (en) | 2009-11-25 | 2009-11-25 | Fluidized-bed type lignite drying and quality raising device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201548016U true CN201548016U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920245442 Expired - Lifetime CN201548016U (en) | 2009-11-25 | 2009-11-25 | Fluidized-bed type lignite drying and quality raising device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201548016U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102021A (en) * | 2010-12-02 | 2011-06-22 | 吴植仁 | Lignite upgrading furnace |
| CN102533302A (en) * | 2012-02-06 | 2012-07-04 | 无锡亿恩科技股份有限公司 | Internal heating type dryer for in-furnace coking coal dehumidification |
| CN103542694A (en) * | 2013-11-08 | 2014-01-29 | 山东科院天力节能工程有限公司 | Non-uniform air distribution interconnected fluidized bed drying device |
| CN105333724A (en) * | 2015-11-06 | 2016-02-17 | 西安热工研究院有限公司 | Safety storage and transportation method of dried brown coal |
| CN109210870A (en) * | 2018-09-06 | 2019-01-15 | 浙江工业大学 | A kind of back-shaped inert particles fluidized bed drying equipment and its drying means |
-
2009
- 2009-11-25 CN CN 200920245442 patent/CN201548016U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102021A (en) * | 2010-12-02 | 2011-06-22 | 吴植仁 | Lignite upgrading furnace |
| CN102102021B (en) * | 2010-12-02 | 2013-04-17 | 吴植仁 | Lignite upgrading furnace |
| CN102533302A (en) * | 2012-02-06 | 2012-07-04 | 无锡亿恩科技股份有限公司 | Internal heating type dryer for in-furnace coking coal dehumidification |
| CN103542694A (en) * | 2013-11-08 | 2014-01-29 | 山东科院天力节能工程有限公司 | Non-uniform air distribution interconnected fluidized bed drying device |
| CN103542694B (en) * | 2013-11-08 | 2015-08-05 | 山东科院天力节能工程有限公司 | The interconnected fluidized bed drying equipment of a kind of nonuniform air distribution |
| CN105333724A (en) * | 2015-11-06 | 2016-02-17 | 西安热工研究院有限公司 | Safety storage and transportation method of dried brown coal |
| CN109210870A (en) * | 2018-09-06 | 2019-01-15 | 浙江工业大学 | A kind of back-shaped inert particles fluidized bed drying equipment and its drying means |
| CN109210870B (en) * | 2018-09-06 | 2023-11-28 | 浙江工业大学 | Drying equipment and drying method for annular inert particle fluidized bed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |