CN202346963U - Vertical drying retort furnace for lignite - Google Patents
Vertical drying retort furnace for lignite Download PDFInfo
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- CN202346963U CN202346963U CN2011205023124U CN201120502312U CN202346963U CN 202346963 U CN202346963 U CN 202346963U CN 2011205023124 U CN2011205023124 U CN 2011205023124U CN 201120502312 U CN201120502312 U CN 201120502312U CN 202346963 U CN202346963 U CN 202346963U
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Abstract
The utility model discloses a vertical drying retort furnace for lignite, which solves the problems of low dewatering efficiency, large energy consumption and the like in the prior art, and is characterized by comprising a drying tower and a dry distillation tower in a combination manner, wherein heat exchange vent pipes are arranged in the drying tower and the dry distillation tower, combustion chambers for providing a heat source and heat circulating pipelines connected with a smoke exhaust fan are arranged on the tower bodies, steam discharge pipe mouths are arranged on the upper parts of the towers, scattering type material distribution vibrating sieves are arranged on the tower tops, and discharge holes are arranged on supporting frames at the tower bottoms. The lignite is dried by the drying tower, so that the moisture content is reduced to less than 13%, and after dry distillation, the lignite can reach quality of a coke finished product.
Description
One, technical field
The utility model belongs to the dry materials distillation apparatus, relates in particular to a kind of vertical drying and carbonization stove of brown coal that can improve materials quality.
Two, background technology
Brown coal are that a kind of metamorphic grade is lower, and fugitive constituent and all higher coal of inherent moisture content, simultaneously, brown coal also have the characteristic of meeting the easy weathering of air and meeting the easy argillization of water.Domestic general steam coal washing mill, most of brown coal washing mill is the open coal mine adequate and systematic service, the feed coal of coal separating plant directly is transported to coal separating plant from surface mines transporting something containerized rubber conveyer or high capacity car and united by coal measures.The equipment that domestic brown coal processing is adopted is with generally the employed equipment of coal separating plant is the same; Maximization equipment is as first-selection; Adopt main equipment, topmost purpose is the residence time that reduces in the brown coal assorting room, reduces because the cracked link in the sorting brown coal process.But be exposed to ground for a long time for brown coal and be prone to cause burning; The weathering of bulk nature is cracked, simultaneously, and calorific value decline 300～500 card/kg; During the brown coal dressing of coal by washing; Coal yard ground should not be considered too big, should get low value, and therefore this main equipment has shortcomings such as cost of investment is high, floor space is big, control is dumb are also arranged.Adopt novel vertical drying and carbonization stove both to save investment and floor space, strengthened mechanical control handiness again, have promotion prospect widely.
At present, combined type dry coal separation as the coal discharge refuse, effective practical technique of sulphur is fallen, but both conserve water resources; Can avoid the black water secondary pollution again,, be fit to the demand of coal enterprises in China and obtain the velocity of sound and apply with its exclusive characteristics though technology is simple, less investment, production cost are low; For coal processing provides a kind of economical and practical coal preparation method, but because brown coal moisture content excessive (brown coal chocolate, full moisture content 38%; Granularity 30-150mm; Coal cinder seasoning spring easy to crack is broken, coal crusher to 25mm, angle of repose 46
0, bulk density 0.72), can not directly select dry coal preparation technology for use, therefore need the needs that a kind of drying and carbonization equipment that improves the brown coal quality satisfies vast Coal Production enterprise badly.
Three, summary of the invention
The purpose of the utility model be to provide a kind of simple and reasonable, control the vertical drying and carbonization stove of brown coal easy, that improve the quality of products.
The technical scheme that the utility model is taked is: the vertical dry distillation tower two that the vertical drying tower that it is made up of six sections dryer section and six sections retort section constitute is partly formed; Evenly arranged in the I dryer section of said drying tower and had the ventpipe of aperture on the body; The one of which sidewall is provided with the draining vapor outlet port, II to VI dryer section) in the atresia ventpipe of then evenly having arranged, cat head feeding warehouse bottom is provided with the formula cloth vibratory screening apparatus that is scattered; One sidewall of drying tower is provided with two combustion chambers; Indoor being provided with by air-supply duct provides fuel and by combustion-supporting airduct the burner of combustion air is provided, and the combustion chamber, top communicates with ventpipe in the I dryer section, and lower combustion chamber communicates with ventpipe in II to the VI dryer section; The opposite side of drying tower is provided with smoke exhaust fan; Its intake stack is extracted out through the hot blast after pipeline and the heat exchange of II to VI dryer section and mouthful is linked to each other, and its air outlet communicates with combustion chamber and feeding warehouse respectively with air main and arm through pipeline, and discharge port is set at the bottom of the tower; The said dry distillation tower top retort section ventpipe of evenly having arranged; Its blast inlet communicates with the combustion chamber that is arranged at the tower side; The bottom retort section is provided with combustion air blast inlet and air outlet, and blast inlet links to each other with the burner blower that is arranged on the dry distillation tower bottom through pipeline, and its air outlet links to each other with the combustion-supporting airduct import of the burner of combustion chamber through pipeline; Be provided with burner in the combustion chamber; Link to each other with gas pipeline through air-supply duct, the top retort section is provided with the air draft mouth of pipe and links to each other with the blast inlet of smoke exhaust fan through pipeline, and its air outlet communicates with combustion chamber and feeding warehouse respectively through main pipe line and arm; Be provided with product offtake at the bottom of the tower, be provided with the formula cloth vibratory screening apparatus that is scattered in the cat head feeding warehouse.The said formula cloth vibratory screening apparatus that is scattered is to be made up of the screen cloth that is arranged at tripper, funnel and bottom in the feeding warehouse, and screen cloth places under the funnel, links to each other with crank on the cam through connecting rod, and cam is installed on the rotating shaft two ends of electric reducer transmission.
The beneficial effect of the utility model is; Owing to adopt drying tower and dry distillation tower machinery, both can a large amount of moisture content in the brown coal fully be discharged, simultaneously can also be with the flammable fugitive constituent recycling in the brown coal; Not only can improve the brown coal quality product greatly; And, the production cost of enterprise being reduced greatly for manufacturing enterprise saves mass energy, production efficiency is improved significantly.
Below in conjunction with accompanying drawing the utility model is described further.
Four, description of drawings
Fig. 1 is the utility model one-piece construction synoptic diagram;
Fig. 2 is the utility model drying tower structural representation;
Fig. 3 is the utility model drying tower vent-pipe front view of arranging;
Fig. 4 is the utility model drying tower vent-pipe sectional view of arranging;
Fig. 5 is the utility model dry distillation tower structural representation;
Fig. 6 is the utility model dry distillation tower vent-pipe front view of arranging;
Fig. 7 is the utility model dry distillation tower vent-pipe sectional view of arranging;
Fig. 8 is the utility model formula cloth Structure of Vibrating Screen front view that is scattered;
Fig. 9 is the utility model formula cloth Structure of Vibrating Screen vertical view that is scattered.
Among the figure: 1 is the I dryer section, and 2,3,4,5,6 is II to VI dryer section, and 7 for having the ventpipe of aperture, and 8 is the atresia ventpipe, 9 feeding warehouses, and 10 for being scattered formula cloth vibratory screening apparatus; 11 is air-supply duct, and 12 is combustion-supporting airduct, and 13 is burner, and 14 is the combustion chamber, top, and 15 is lower combustion chamber, and 16 is smoke exhaust fan; 17 is intake stack, and 18 is pipeline, and 19 are hot blast extraction mouth, and 20 is pipeline, and 21 is air main, and 22 is arm; 23 is discharge port, and 24 is ventpipe, and 25 is the combustion chamber, and 26 is blast inlet, and 27 is air outlet, and 28 is pipeline; 29 is burner blower, and 30 is pipeline, and 31 is burner, and 32 is air-supply duct, and 33 are the air draft mouth of pipe, and 34 is smoke exhaust fan; 36 is product offtake, and 37 is the feed bin opening for feed, and 38 is funnel, and 39 is screen cloth, and 40 is connecting rod, and 41 is bearing pin; 42 is electric reducer, and 43 are rotating shaft, and 44 is the combustion-supporting airduct of burner, and 45 is tripper, and 46 is cam.
Five, embodiment
As shown in Figure 1; Get steel plate and make 6 of the rectangular parallelepiped sheet frames that length is respectively 3000 millimeters, 2000 millimeters, 2000 millimeters, ventpipe 7, one sidewalls that have aperture of wherein evenly arranging in sheet frame are provided with the atresia ventpipe 8 of all arranging in all the other five sheet frames of draining vapour outlet; Then it is installed on the bracing frame that is provided with discharge port 23 according to being fixed; Connect in aggregatesly up and down, and make the sheet frame of the ventpipe 7 that has aperture place the superiors, cat head is provided with feeding warehouse 9; Be provided with the formula cloth vibratory screening apparatus 10 that is scattered of screen cloth 39 formations of tripper 45, funnel 38 and bottom in the feeding warehouse; Screen cloth 39 places under the funnel 38, links to each other with bearing pin 41 on the cam through connecting rod 40, and cam is installed on rotating shaft 43 two ends of electric reducer 42 transmissions.One sidewall of tower is provided with two combustion chambers; Indoor install combustion device 13; With combustion-supporting airduct 12 energy is provided through being installed in tower outer air-supply duct 11, combustion chamber, top 14 communicates with I dryer section 1 interior ventpipe 7, and lower combustion chamber 15 communicates with ventpipe 8 in II to the VI dryer section; The opposite side of drying tower is provided with smoke exhaust fan 16; Its intake stack 17 is extracted mouthfuls 19 out through the hot blast after pipeline 18 and the heat exchange of II to VI dryer section and is linked to each other, and its air outlet communicates with combustion chamber 14,15 and feeding warehouse 9 respectively with air main 21 and arm 22 through pipeline 20, and discharge port 23 is set at the bottom of the tower.As shown in Figure 2; Get steel plate making length equally and be respectively 3000 millimeters, 2000 millimeters, 2000 millimeters 6 of the rectangular parallelepiped sheet frames and the atresia ventpipe 24 of in sheet frame, evenly arranging; Being fixed then is installed on the bracing frame that is provided with product offtake 36, connects in aggregates up and down.The blast inlet of the ventpipe 24 that this dry distillation tower is inner communicates with the combustion chamber that is arranged at the tower side 25; The bottom retort section is provided with combustion air blast inlet 26 and air outlet 27; Blast inlet 26 links to each other with the burner blower that is arranged on the dry distillation tower bottom 29 through pipeline 28; Its air outlet 27 links to each other with combustion-supporting airduct 12,44 imports of the burner of combustion chamber 14,15,25 through pipeline 30, is provided with burner 31 in the combustion chamber 25, links to each other with gas pipeline through air-supply duct 32; The top retort section is provided with the air draft mouth of pipe 33 and links to each other with the blast inlet of smoke exhaust fan 34 through pipeline; Its air outlet communicates with combustion chamber 25 and feeding warehouse 35 respectively through main pipe line and arm, is provided with product offtake 36 at the bottom of the tower, and the cat head feeding warehouse is provided with the formula cloth vibratory screening apparatus 10 that is scattered for 9 li.When implementing the utility model; Brown coal are input to before the drying tower in the lift through the screw feeder that is provided with before the drying tower through pulverizing the back, and brown coal are delivered to the high vertical dry cat head of 18.5m through lift and got in the feeding warehouses 9 through feed bin opening for feed 37, the brown coal in the feeding warehouse 9 through hopper sieve 10 with the brown coal formula cloth that is scattered; Raw material is through drying tower top I dryer section; Through combustion chamber, top 14 burning generate high-temperature flue gas allocate into reach 650 ℃ after the smoke evacuation outlet cold flue gas after, directly be blown into tower internal heating material and make it draining through having aperture ventpipe 7 in the tower, the hot blast utilising efficiency reaches more than 75%; Material is in a large amount of bleeding stages simultaneously; A large amount of steam are outside draining vapour outlet pipeline is discharged tower, and this moment, temperature of charge can not surpass 150 ℃, to guarantee that material does not have the fugitive constituent benefit and goes out in drying oven.Generating high-temperature flue gas by the lower combustion chamber burning in the atresia ventpipe 8 in II to the VI dryer section allocates into and reaches 650 ℃ after the smoke evacuation outlet cold flue gas hot blast is provided; Material to through this section carries out indirect heat exchange; Make the interior residue of material moisture content carry out indirect heating; Moisture content becomes and steams the mouth of pipe from draining behind the water vapor and discharge, guarantee dry moisture content (make brown coal drying fall the moisture content 25% or more, greater than 10 tons of water/hour) time assurance Control for Kiln Temperature at 150 ℃; Temperature of charge can not surpass 150 ℃, to guarantee that material does not have fugitive constituent and overflows in drying oven.The dried material of process drying tower is after discharge port 23 is delivered to the vertical elevator of dry distillation tower through spiral conveyer; In feed bin opening for feed 37 is admitted to the feeding warehouse 9 of destructive distillation cat head; Formula cloth vibratory screening apparatus 10 disperses material to be uniformly distributed with in the entering dry distillation tower through being scattered; Raw material is through after making the material draining through high temperature ventpipe 24 indirect heating frame modes in the gas retort; The cold wind of sending into through the burner blower that is arranged at tower bottom carries out heat exchange to the material through this retort section, after furnace bottom is through cooling, obtains the finished product coke and discharges from product relief outlet 36, then sends into burner combustion through the combustion-supporting airduct 30 that air outlet 27 connects through the combustion-supporting hot blast after the heat exchange.This equipment is not only simple in structure, easy to operate, and can save mass energy, and the brown coal product quality is improved significantly.
Claims (2)
1. vertical drying and carbonization stove of brown coal; The vertical dry distillation tower two that the vertical drying tower that it is made up of six sections dryer section and six sections retort section constitute is partly formed; It is characterized in that: the ventpipe (7) of evenly having arranged and having had aperture on the body in the I dryer section (1) of said drying tower; The one of which sidewall is provided with the draining vapor outlet port; The atresia ventpipe (8) of then evenly having arranged in II to the VI dryer section (2,3,4,5,6); Cat head feeding warehouse (9) bottom is provided with the formula cloth vibratory screening apparatus (10) that is scattered, and a sidewall of drying tower is provided with two combustion chambers, and indoor being provided with by air-supply duct (11) provides fuel and the burner (13) of combustion air is provided by combustion-supporting airduct (12); Combustion chamber, top (14) communicates with the interior ventpipe (7) of I dryer section (1); Lower combustion chamber (15) communicates with ventpipe (8) in II to the VI dryer section, and the opposite side of drying tower is provided with smoke exhaust fan (16), and its intake stack (17) is extracted mouth (19) out through the hot blast after pipeline (18) and the heat exchange of II to VI dryer section and linked to each other; Its air outlet communicates with combustion chamber (14,15) and feeding warehouse (9) respectively with air main (21) and arm (22) through pipeline (20), and discharge port (23) is set at the bottom of the tower; The said dry distillation tower inside ventpipe (24) of evenly having arranged; Its blast inlet communicates with the combustion chamber that is arranged at the tower side (25); The bottom retort section is provided with combustion air blast inlet (26) and air outlet (27); Blast inlet (26) links to each other with the burner blower that is arranged on the dry distillation tower bottom (29) through pipeline (28); Its air outlet (27) links to each other with the combustion-supporting airduct of burner (44) import of combustion chamber (14,15,25) through pipeline (30), is provided with burner (31) in combustion chamber (25), links to each other with gas pipeline through air-supply duct (32); The top retort section is provided with the air draft mouth of pipe (33) and links to each other with the blast inlet of smoke exhaust fan (34) through pipeline; Its air outlet communicates with combustion chamber (25) and feeding warehouse (9) respectively through main pipe line and arm, is provided with product offtake (36) at the bottom of the tower, is provided with the formula cloth vibratory screening apparatus (10) that is scattered in the cat head feeding warehouse (9).
2. the vertical drying and carbonization stove of brown coal according to claim 1; It is characterized in that: the said formula cloth vibratory screening apparatus that is scattered is to be made up of the screen cloth (39) that is arranged at tripper (45), funnel (38) and bottom in the feeding warehouse (9); Screen cloth (39) places under the funnel (38); Link to each other with bearing pin (41) on the cam (46) through connecting rod (40), cam (46) is installed on rotating shaft (43) two ends of electric reducer (42) transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205023124U CN202346963U (en) | 2011-12-06 | 2011-12-06 | Vertical drying retort furnace for lignite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205023124U CN202346963U (en) | 2011-12-06 | 2011-12-06 | Vertical drying retort furnace for lignite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202346963U true CN202346963U (en) | 2012-07-25 |
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ID=46535980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205023124U Expired - Fee Related CN202346963U (en) | 2011-12-06 | 2011-12-06 | Vertical drying retort furnace for lignite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202346963U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178190A (en) * | 2014-08-18 | 2014-12-03 | 千秋能源（上海）有限公司 | Quality-improving treatment device for brown coal |
| CN104178191A (en) * | 2014-08-18 | 2014-12-03 | 千秋能源（上海）有限公司 | Lignite upgrading treatment system |
-
2011
- 2011-12-06 CN CN2011205023124U patent/CN202346963U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178190A (en) * | 2014-08-18 | 2014-12-03 | 千秋能源（上海）有限公司 | Quality-improving treatment device for brown coal |
| CN104178191A (en) * | 2014-08-18 | 2014-12-03 | 千秋能源（上海）有限公司 | Lignite upgrading treatment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121206 |