CN101907386A - Energy efficient cylinder type brown coal drying and upgrading device - Google Patents
Energy efficient cylinder type brown coal drying and upgrading device Download PDFInfo
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- CN101907386A CN101907386A CN 201010252170 CN201010252170A CN101907386A CN 101907386 A CN101907386 A CN 101907386A CN 201010252170 CN201010252170 CN 201010252170 CN 201010252170 A CN201010252170 A CN 201010252170A CN 101907386 A CN101907386 A CN 101907386A
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Abstract
The invention discloses an energy efficient cylinder type brown coal drying and upgrading device, which fundamentally improves the problems of incomplete material curtain and the like in the existing cylinder drier and comprises an engine body, a driver of the engine body and a controller. The technical key points are as follows: the engine body the axis of which is parallel with a horizontal plane is internally provided with at least one drying cylinder body, wherein the two ends of the drying cylinder body are respectively provided with an annular dam ring, and the material flow tail end thereof is provided with an endless band type open discharge outlet; the inner wall of the drying cylinder body is provided with material even spreaders which are arranged in a spiral push type and in an arc-shaped tile structure; and the center of an annular pin roll chain driven by the driver through a chain wheel and multiple rows of chains and the center of gravity of the engine body are on the same plumb line. Besides the maintained advantages of high drying and upgrading rate, large primary precipitation amplitude and the like, the invention has more reasonable structure distribution, enables the material flow to be more ordered and reasonable, effectively reduces the material jumping phenomenon, further improves the drying and upgrading rate, achieves the remarkable effects of energy and electricity conservation, low consumption and emission reduction, and has wide application range, and the application field of the upgraded brown coal is broader.
Description
Technical field
The present invention relates to a kind of drying device, particularly a kind ofly can improve the drying and upgrading rate, reach the energy efficient cylinder type brown coal drying and upgrading device of significantly energy-conservation, power saving, low consumption, emission reduction effect, it is mainly used in " with the brown coal drying and upgrading technology of preparing superheated steam with waste heat steam " (the applying for a patent separately) of inventor design as brown coal drying and upgrading device, its scope of application is extensive, and the brown coal application is broad after the upgrading.It can be widely used in hanging down of every profession and trade and glue dehydrating of material, also can be used as the drying and upgrading equipment of municipal refuse, the contour water-containing materials oven dry of river course mud.
Background technology
China's lignite resource reserves are abundant, fat coal scarcity of resources such as bituminous coal and anthracite, low calorie fuels resource high-moisture wet basis brown coal are had only drying and upgrading after, could widely be utilized.For this reason, domestic enterprises such as coal mining, coalification industry, moulded coal industry, town gas industry and power plant adopt the dry brown coal of all kinds of drying equipments one after another.Its capital equipment has: individual layer roller drier, disc type drying machine, vertical crossing current drying machine, vibrating dryer, fluid bed dryer and mesh-belt drier or the like, but can realize the less of high precipitation ability, all have a lot of technical problems and defective workmanship.Through relatively: use by thermal medium and to classify: use more or by mainly containing that market is paid close attention to: (one) individual layer roller drier; (2) steam heat-conducting rotary drum dryer; (3) superheated steam pyrolysis formula fluid bed dryer or the like.Report according to patent documentation: publication number is " a kind of coal slime, the brown coal drying and upgrading Processes and apparatus " of CN101519617A, and the front portion of device therefor is the feed and the material guide device of scraper feeder coupling, and the middle part is a drying machine, and the rear portion is the discharging discharge device.Material relies on the rotation lifting displacement or the motion of main drying angle of inclination and cylinder in the past backward, and material drying system feeds high-temperature flue gas, and the heat exchange of constant speed matter is quickened in the following current in main drying of flue gas and material.Existing individual layer roller drier, horizontal 3-8 ° is tilted to put, with endwisely slipping of the spacing large-size cylinder body of gear wheel, circumferential rotation 1-6r/min.Because tilt to put, gear is easy to wear, the difficulty of upset commutation can be bigger.Adopt 550-720 ℃ of direct flue gas firepower drying of high temperature, carbon monoxide in the fugitive constituent, hydrogen, carbon compound, a large amount of losses of flammable explosive gas such as methane, promptly lost useful material composition, security to equipment constitutes a threat to again, no matter be to adopt forward concurrent drying, or reverse counter-current drying, its unsafe factor all exists simultaneously, and the EGT of getting rid of is too high, and the phenomenon that sack cleaner is burnt happens occasionally, and the thermal efficiency only is 30-50%, adopt wet dedusting, artificial again generation sewage increases the environmental protection difficulty, is to demand the technology improving and improve urgently.At present, more influential in the international market is foreign heat-conducting rotary drum dryer, this machine adopts the tube sheet welded structure at some steel pipes and two ends, its outer cover steel plate is clappers, in the clappers shell is steam channel, is the brown coal drying important channel in the steel pipe (φ 50-150mm), and brown coal are in the rotary drum at horizontal 7-20 ° inclination angle, by the circumferential rotation of drive unit and rotary drum 4-15r/min and the effect of the spiral guide plate in the dependence steel pipe, realize material displacement, turnover material; Steam pressure is lower, is generally 4 crust, and temperature≤180 ℃ can play a protective role really to the volatile matter of brown coal.But it is for high-moisture wet basis brown coal, and the phenomenon that blocks of guide not can often appear in the spring guide plate in the tube bank, causes equipment to stop production, and maintenance needs to extract out spring guide plate, dredging pipeline, comparatively trouble.Aixal admission valve precision prescribed is higher in addition, the single device disposal ability is less, an enterprise that produces 1000000 tons of upgraded coal per year, several equipment are set work side by side, its one-time investment is bigger, and the plant maintenance amount is also bigger, the maintenance cost height, the operating cost height still can not be accepted by market fully, demands urgently improving and improving.Publication number be CN101519614A's " a kind of water brown coal drying moulding process for upgrading that is rich in ", be exactly drum dried technology on its basis, just on the granulation link, increase new corollary equipment, but still have the problems referred to above and defective.Publication number be CN101260307A's " a kind of brown coal drying and upgrading device and process " its be medium with the superheated steam, adopt fluidized bed drying device, pyrolysis formula drying.Equipment therefor comprises brown coal locellus drying device, fluidized bed pyrolysis device, pyrolysis gas burner and servicing unit thereof.Enter pyrolysis installation and separate out volatile matter and product liquid through dried brown coal, volatile matter is sent into the burner burning, and producing flue gas and steam, flue gas and part steam, to be admitted to drying device interior as drying medium.All the other steam are admitted to the heat energy thermal source are provided in the heat energy apparatus, and drying device adopts the portable mass transport mode of chain, the dry and eliminating of flue gas and steam locellus.The steam of 300-500 ℃ of this arts demand high-temperature and elevated pressures, volatile matter is the important indicator of Coal Chemical Industry examination in the brown coal, and this technology is through pyrolysis drying, and a large amount of volatile matters disengage and send into combustion chambers burn in the brown coal, and volatile matter is just burnt in the upgrading process, and some is unfortunate.Oven dry back brown coal can only be used for as electric coal and thermal coal, and Sales Channel narrows down, and purposes is restricted, and price also can be influenced.Publication number be CN101581532A's " multiple-effect superheated steam brown coal drying system and technology thereof ", it comprises the multi-stage drying device of series connection, wherein every grade of drying device is equipped with feeding device, drawing mechanism reaches one-level dust arrester at least, the dust arrester end is sent a part of tail gas back to drying device at the corresponding levels by pressue device, and another part tail gas is sent into the next stage drying device as thermal source; Wherein, the one-level drying device is connected with steam source, and the dust arrester of final stage drying device is sent a part of tail gas back to drying device at the corresponding levels by pressue device, the emptying of another part tail gas.This process using multistage fluidized bed drying machine and the multistage dust arrester of forming by the cyclone dust collectors and the electric cleaner of plural serial stage, multistage internal heating fluidized bed drying machine serial operation, the weary gas that the first order produced is used as partial heat medium after dedusting, partial weary gas after dedusting as the heat medium of the third level, the whole return boilers of condensed water utilize again, steam boiler is the main thermal source of this technology, and system equipment repeats the technology more complicated is set.Device structure also exists certain technological deficiency and deficiency, publication number be CN101519617A's " a kind of coal slime brown coal drying and upgrading Processes and apparatus ", adopt the tooth drive technology, this drive technology only is the engagement of monodentate root in production run, for guaranteeing heavy cylindrical shell security of operation, piece volumes such as its gear ring, gear are big, foundry goods processing charges height, endwisely slip with the spacing large-size cylinder body of gear wheel, increase unnecessary operation and equipment again; In order to prevent the tapering wearing and tearing of gear, gear needs the comparatively trouble that commutates also of often overturning; Adopt right angle flanging " flight " as shedding device, be entire body linear pattern layout, its material movement state still is the linear blanking of entire body bar, the material curtain is imperfect, and blank coefficient is big, and influence is conducted heat and drying effect, influence precipitation rate, therefore, it also is to demand improved technology urgently.Notification number be CN201255563Y's " superheated steam cylindrical drier ", this machine is attempted with the generator of output superheated steam the superheated steam of discharging to be heated the mode that combines with roller drying, form superheated steam drum-type drying device, realize that indirect steam is recycling, reach the purpose that cuts down the consumption of energy.But because of this machine adopts superheated steam generator as starting thermal source, and the steam that roller drier is discharged is also sent into superheated steam generator heat, with recycling, so still belong to the structure that the superheated steam of existing employing exotic fuels firing equipment output is used as uneconomical thermal source.Heat as the steam that adopts preheater and superheated steam generator that roller drier is discharged again, then not only have the problem that technology is cumbersome, equipment repeats to be provided with, and power consumption more than this indirect steam recycling, do not reach energy-conservation effect at all.
The problem that the inventor once existed at existing drying equipment, designing notification number is " double return journey barrel type drying machines " of CN100573003C and " three return journey barrel type drying machines " that notification number is CN100570253C.Its potential potential energy that makes full use of " heat " and " wetting " two kinds of motions of matter is power; adopt the design feature of " multiple-unit ", " multi-cavity body ", " many backhauls "; with new technologies such as " many backhauls heat transfer ", " following current heat transfer ", " countercurrent heat-transfer ", " low temperature drying ", " gentle dehydrations "; make the brown coal volatile matter be subjected to protecting effectively, solved that brown coal drying catches fire and blast, volatile matter run off, the precipitation ability is low, the thermal efficiency lowly reaches problems such as one-time investment expense height, operating cost height.Although through facts have proved, this technology has thermal efficiency height (greater than 81%), the specific heat consumption index is low (less than 1182kcal/kgH
2O), a precipitation range big (more than 50%), dehydration rate height (being 69-83%), (wet basis brown coal low heat valve is 3100kcal/kg to drying and upgrading rate height, baking back coal can reach 5500kcal/kg, and its drying and upgrading rate is 77.42%, can realize the lifting of low calorie fuels quality fully) etc. advantage, but on structural design, still have and need to improve or improve part, easily produce the material spring phenomenon sometimes as the material of cylindrical shell end discharge port; Cause the disordered motion of material, influence drying effect, its drive unit adopts the exposed gear transmission of routine techniques driven wheel and the gear ring that is engaged with, be the monodentate engagement, power consumption is bigger, and safety coefficient is lower, gear and the gear ring materials are more, processing charges is high, strengthened production cost.Be necessary the structure of existing cylinder drying machine is transformed for this reason,, improve its serviceability further to improve its function.
Summary of the invention
The purpose of this invention is to provide a kind of improved energy efficient cylinder type brown coal drying and upgrading device, it has fundamentally improved problems such as some structure that existing cylinder drying machine exists is unreasonable, it is removed keep drying and upgrading rate height, one time precipitation range is big, outside the advantages such as volatile matter does not run off, it is reasonable that structure distribution more becomes, the drying process smoothness, make the orderly more and rationalization of Flow of Goods and Materials, reduce the material spring phenomenon effectively, compare with its same category of device, stable, the whole volume space of cylindrical shell forms complete material curtain, further improve output, precipitation range, the drying and upgrading rate reaches significantly energy-conservation, power saving, low consumption, the effect that reduces discharging, its scope of application is extensive, not only be fit to single backhaul cylinder type brown coal upgrading drying, two backhaul cylinder type brown coal upgrading drying machines and three backhaul cylinder type brown coal upgrading drying machines, the brown coal application is broader after the upgrading.
The technical solution adopted in the present invention is: this energy efficient cylinder type brown coal drying and upgrading device comprises and has support, the body of supporting arrangement and drive unit thereof and controller, its technical essential is: the axis described internal body parallel with horizontal plane has at least two ends that the dry cylindrical shell that the blank discharge port of endless belt formula is set on the barrel in the ring-like collet of annular collet and material flow tail end is set respectively, shed device in the pusher in the shape of a spiral homocline of arranging of the inwall setting of described dry cylindrical shell, described homocline is shed device and is adopted circular-arc tile type structure, its cambered surface right string face radially fixing, its concave surface is shed face for connecting material, the annular bearing pins row chains that sprocket wheel and many row's chains drive that pass through of drive unit fixedly are assembled in described body periphery, and make described annular bearing pin arrange the center of gravity of the center of chain and described body on same plumb line.
When described internal body is provided with two arranged concentric, mutual dislocation at least and is sleeved on together dry cylindrical shell, the helix direction of propulsion that should make the pusher in the shape of a spiral homocline of arranging that is arranged on described adjacent dry cylinder inboard wall shed device is opposite, utilizes adjusting support and reinforcement buffer plate thereof by arranged radially to connect the location between the dry cylindrical shell.
The circular-arc tile that device is shed in described homocline allows to adopt the flanging body to substitute or adopts right angle flanging body to substitute or adopt many ribs flanging body to substitute.
The annular bearing pins row chain that sprocket wheel and many row's chains drive that passes through of described drive unit adopts the gear ring by gear driven fixedly to be assembled in described body periphery, and the center of gravity that makes the center of described gear ring and described body is on same plumb line.
Advantage and good effect that the present invention has are: owing to be that notification number the inventor is improved on the architecture basics of " double return journey barrel type drying machines " and " three return journey barrel type drying machines " that notification number is CN100570253C of CN100573003C, has thermal efficiency height so kept it, unit hydro-thermal consumption index is low, one time precipitation range is big, outside the drying and upgrading rate advantages of higher, because of its dry cylindrical shell adopts the blank discharge port of endless belt formula that has ring-like collet, it is reasonable that structure distribution more becomes, make the orderly more and rationalization of Flow of Goods and Materials, reduce the material spring phenomenon effectively; Device is shed in the inner peripheral surface setting of the dry cylindrical shell homocline of pusher layout in the shape of a spiral, adopt circular-arc tile type structure, its cambered surface right string face radially fixing, its concave surface is shed face for connecting material, further material is constantly held up, promotes, sheds out, disperse forms complete material curtain in the whole volume space of dry cylindrical shell, the integrated degree of this material curtain and the uniformity thereof determined thermal medium transmission and exchange, concerning the thermal efficiency, precipitation ability and quantum of output.In addition, the homocline that screw-pushing type is arranged is shed device and is realized that the material that constantly replenishes, dried by the fire of new material does not stop to move forward transposition, upgraded coal after the baking, finish the overall process of oven dry in high quality by designing requirement, through the blank discharge port of endless belt formula, can directly discharge or enter the next stage procedure links again.Device is shed in the homocline of the dry cylindrical shell of putting because of level and the circular-arc tile type structure of employing of the pusher layout of inside spin, effectively control or stipulate the flowing velocity of material, infinitely prolonged the movement locus of material, make technology smooth more, thermal medium carries out the transmission and the exchange of stronger heat and matter with material in the process that penetrates the material curtain, free surface moisture constantly is evaporated vaporization, the brief stay process that material drops in the cylindrical shell is the degree of depth transmission and the exchange process of " heat " and " wetting " two kinds of motions of matter, be that interior contained constitution water of large granular materials body and water of constitution are constantly by excessive, be evaporated again when shedding and vaporize, so strengthened precipitation range one time, increase the removal and the amount of dry matter of brown coal unit's unit weight moisture, realized the rapid lifting of brown coal quality.Its moisture removal amount is big more, and it is many more that the amount of dry matter of unit unit weight then increases, and its calorific value promotes remarkable more, and the EGT of discharge is just more near dew point, the nearly saturation state of humidity, thereby increases substantially the thermal efficiency, reaches the purpose of low energy.Drive unit is by the annular bearing pin row chain of many row's chain drive body peripheries, and the center of gravity that makes the center of annular bearing pin row chain and body is on same plumb line, thereby form big cornerite and arrange the chain transmission more, its load-carrying ability is strong, the cornerite coefficient is big, the parts materials are economized, processing charges is low and it is easy to change, reduced production cost, safe and reliable.Because the present invention is the gyration of a kind of center of gravity at the center, so it is little to start torque, the province's merit that saves time is laborsaving, and its wear tension modification rate is low, and safety factor is big.This device belongs to middle low temperature drying in addition, and it is not high that material heats up, and outer peripheral face is provided with thermal isolating panel, and the thermal conductivity factor of its body or annular bearing pin row chain is extremely low, therefore, can not constitute a threat to or endangers lubricating oil, uses safer.In sum, this device not only helps the removal of total moistures such as the constitution water of high-moisture large granular materials and free water, significantly saved user's civilwork engineering quantity, reduce one-time investment, and show through practice examining, compare with its same category of device, the rate of filling its volume improves nearly 2-3 doubly, output improves more than 3 times, one time the precipitation ability improves more than 4 times, the summation that is equivalent to existing individual layer roller drier 3-4 platform series connection ability, the used heat gas that this energy efficient cylinder type brown coal drying and upgrading device produces in dry run can be recycled, if it contains carbon monoxide in the used heat gas, during material composition such as hydrogen and methane, can there be purpose to separate and reclaim, pyrolytic reaction and vaporization reaction can not take place generally, and other chemical reaction; Unit hydro-thermal consumption index can be reduced to 800kcal/kgH
2Below the O, reach the effect of significantly energy-conservation, power saving, low consumption, reduction of discharging veritably, its scope of application is extensive, makes the brown coal application after the upgrading broader.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is the concrete structure schematic diagram that has the dry cylindrical shell of three backhauls in a kind of body of the present invention;
Fig. 2 is the cutaway view of Fig. 1 along the B-B line;
Fig. 3 is the cutaway view along the A-A line that has the dry cylindrical shell of three backhauls in a kind of body among Fig. 1;
Fig. 4 is the cutaway view along the A-A line that has the dry cylindrical shells of two backhauls in a kind of body among Fig. 1;
Fig. 5 is the cutaway view along the A-A line that has the dry cylindrical shell of single backhaul in a kind of body among Fig. 1.
Sequence number explanation among the figure: 1 seal box, 2 feed arrangements, 3 homoclines are shed device, 4 rolling rings, 5 bodies, 6 annular bearing pin row chains, 7 inner drying cylindrical shells, 8 middle dry cylindrical shells, 9 outer dry cylindrical shells, the blank discharge port of 10 endless belt formulas, 11 thermal medium imports or used heat outlet, 12 ring-like collets, 13 discharging openings, 14 support rollers, more than 15 row's chains, 16 sprocket wheels, 17 drive units, 18 supports, the outlet of 19 used heat or thermal medium import, 20 and are regulated support.
The specific embodiment
Describe concrete structure of the present invention in detail according to Fig. 1～5.This energy efficient cylinder type brown coal drying and upgrading device is that the notification number the inventor is improved on the architecture basics of " double return journey barrel type drying machines " and " three return journey barrel type drying machines " that notification number is CN100570253C of CN100573003C, so specification, model and the manufacturing process of its basic building block should determine that particularly structural design and manufacturing are used and more should be met the requirement of safety production measures and the regulation of relevant criterion by the standard and the relevant regulations of existing drying equipment.This device comprises the body 5 and the parts such as drive unit and controller (not shown) thereof of the supporting arrangement that has support 18, is made of rolling ring 4 and support roller 14.Wherein the structure of the universal components such as discharging opening 13 of the feed end seal box 1 of body 5 and discharge end seal box 1, the feed arrangement 2 that is arranged on the feed end of dry cylindrical shell, discharge end is with existing cylinder drying machine.Drive unit 17 comprises the motor commonly used that is assembled on the basis, reductor, sprocket wheel 16 and by sprocket wheel 16 with arrange the parts such as annular bearing pin row chain 6 that chain 15 drives more.The annular bearing pin is arranged chain 6 for adopting many cribbings apart from equating and with the closing-up carrier bar together and the pin type chain ring (being equivalent to large-scale sprocket wheel) of bearing pin composition, fixedly being assembled in the periphery that periphery is provided with the body 5 of thermal isolating panel.
This device belongs to middle low temperature drying, and material heats up not high, and the thermal conductivity factor of annular bearing pin row chain 6 is extremely low.Therefore, the lubricating oil formation harm that can not arrange chain 6 to annular bearing pin, arrange chain 15 more is used safer.The sprocket wheel 16 that the motor of drive unit 17, reductor drive is arranged the chain transmission by the big cornerite that many rows chain 15 drives annular bearing pin row chain 6 formations more, its load-carrying ability is strong, the cornerite coefficient is big, the materials of sprocket wheel 16, annular bearing pin row chain 6 are economized, processing charges is low, safety coefficient is big, and change easily, can reduce manufacturing cost.For the power distribution that makes drive unit 17 is further improved, make its driveability more stable, reduce power consumption, the center of gravity that should make the center of annular bearing pin row chain 6 and body 5 is on same plumb line.The quantity of bracing or strutting arrangement can be provided with two or more sets according to the length and the needs of body 5, and every group of bracing or strutting arrangement comprises rolling ring commonly used 4 and a pair of support support roller 14 by bearing support thereof.The axis of the body 5 after the installation is parallel with horizontal plane, and does not adopt the body of traditional cylinder drying machine to be the form that is in tilted layout.
According to designing requirement, according to the thermal medium transmission in the body 5 and the demand of exchange, precipitation ability and quantum of output, body 5 inside will be provided with a dry cylindrical shell parallel with its axis at least, can be according to the requirement of " following current heat transfer " or " countercurrent heat-transfer ", at the one end thermal medium import or used heat outlet 11 are set, the other end then is provided with thermal medium import or used heat outlet 19.These drying cylindrical shell two ends are provided with annular collet 12 respectively, on the barrel in the ring-like collet of the material flow tail end of dry cylindrical shell the blank discharge port 10 of endless belt formula are set.Shed device 3 in the pusher in the shape of a spiral homocline of arranging of the inwall setting of dry cylindrical shell, this homocline is shed device 3 and is preferably adopted circular-arc tile type structure, and make its cambered surface right string face radially fixing, its concave surface is shed face for connecting material, convex surface is back of the body charge level, back of the body charge level and inwall also will be done to reinforce and support welding, to prevent part except that the normal interface welding.Through facts have proved: the best results that device 3 forms complete material curtain is shed in the homocline of semicircle camber.Also can adopt the flanging body to substitute or adopt right angle flanging body to substitute or adopt many ribs flanging body to substitute according to the circular-arc tile that uses needs that device 3 is shed in homocline.When body 5 inside are provided with two arranged concentric, mutual dislocation at least and are sleeved on together dry cylindrical shell, the helix direction of propulsion that should make the pusher in the shape of a spiral homocline of arranging that is arranged on adjacent dry cylinder inboard wall shed device 3 is opposite, utilize between the dry cylindrical shell by the adjusting of arranged radially support 20 and the reinforcement buffer plate connect the location.Ring-like collet 12 is a kind of baffle rings that the material disordered flow goes out that limit, the periphery that is the baffle ring made of circular ring type steel plate is formed by connecting with dry cylinder inboard wall is vertical, inner ring surface is Lve Gao or is parallel to the ring surface at outer peripheral face place that the circular-arc tile of device 3 is shed in homocline, quantity is a pair of, and feed end and discharge end are respectively established a place.
Concrete structure of the present invention can be designed to " single backhaul cylinder type brown coal drying and upgrading device " (as shown in Figure 5), " two backhaul cylinder type brown coal drying and upgrading device " (as shown in Figure 4) and " three backhaul cylinder type brown coal drying and upgrading devices " (as Figure 1-3).
Wherein " single backhaul cylinder type brown coal drying and upgrading device " to be mainly used in the brown coal moisture content lower, a precipitation range was less than 16% o'clock; Outer dry cylindrical shell 9 only is set in the body 5.
It is higher that " two backhaul cylinder type brown coal drying and upgrading device " is mainly used in the brown coal moisture content, and a precipitation range was less than 30% o'clock; Two arranged concentric, mutual dislocation are set in the body 5 are sleeved on inner drying cylindrical shell 7 together, middle dry cylindrical shell 8.
" three backhaul cylinder type brown coal drying and upgrading devices " is mainly used in brown coal moisture content height, and precipitation range is equal to or greater than 30% when above; Three arranged concentric, mutual dislocation are set in the body 5 are sleeved on inner drying cylindrical shell 7 together, middle dry cylindrical shell 8 and outer dry cylindrical shell 9.
Selecting for use of three kinds of frame modes mainly according to user's specific requirement, if wish that the occupied ground area is few, then used the many cylinder type brown coal drying and upgrading devices of backhaul quantity, adopts the effective length of single backhaul cylinder type brown coal drying and upgrading device should be above 30 meters.
The feed arrangement 2 of the feed end of above-mentioned " the three backhaul cylinder type brown coal drying and upgrading devices " and the dry cylindrical shell of " single backhaul cylinder type brown coal drying and upgrading device ", the discharging opening 13 of discharge end are located at the two ends of drying device respectively; And have only the feed arrangement 2, the discharging opening 13 of discharge end of feed end of the dry cylindrical shell of " two backhaul cylinder type brown coal drying and upgrading device " to be provided in a side of the same end of device.
Claims (4)
1. energy efficient cylinder type brown coal drying and upgrading device, comprise and have support, the body of supporting arrangement and drive unit thereof and controller, it is characterized in that: the axis described internal body parallel with horizontal plane has at least two ends that the dry cylindrical shell that the blank discharge port of endless belt formula is set on the barrel in the ring-like collet of annular collet and material flow tail end is set respectively, shed device in the pusher in the shape of a spiral homocline of arranging of the inwall setting of described dry cylindrical shell, described homocline is shed device and is adopted circular-arc tile type structure, its cambered surface right string face radially fixing, its concave surface is shed face for connecting material, the annular bearing pins row chains that sprocket wheel and many row's chains drive that pass through of drive unit fixedly are assembled in described body periphery, and make described annular bearing pin arrange the center of gravity of the center of chain and described body on same plumb line.
2. energy efficient cylinder type brown coal drying and upgrading device according to claim 1, it is characterized in that: when the described internal body that outer peripheral face is provided with thermal isolating panel is provided with two arranged concentric, mutual dislocation at least and is sleeved on together described dry cylindrical shell, the helix direction of propulsion that should make the pusher in the shape of a spiral homocline of arranging that is arranged on described adjacent dry cylinder inboard wall shed device is opposite, utilizes adjusting support and reinforcement buffer plate thereof by arranged radially to connect the location between the dry cylindrical shell.
3. energy efficient cylinder type brown coal drying and upgrading device according to claim 1 is characterized in that: the circular-arc tile that device is shed in described homocline adopts the flanging body to substitute or adopts right angle flanging body to substitute or adopt many ribs flanging body to substitute.
4. energy efficient cylinder type brown coal drying and upgrading device according to claim 1, it is characterized in that: the annular bearing pins row chain that sprocket wheel and many row's chains drive that passes through of described drive unit adopts the gear ring by gear driven fixedly to be assembled in described body periphery, and the center of gravity that makes the center of described gear ring and described body is on same plumb line.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017683A (en) * | 2019-03-11 | 2019-07-16 | 合肥禾源粮油有限公司 | A kind of foodstuff drying device using natural gas |
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| CN2059729U (en) * | 1989-05-24 | 1990-07-25 | 煤炭科学研究总院唐山分院 | Drum dryer with cleaner |
| CN2475982Y (en) * | 2001-04-23 | 2002-02-06 | 河北建设集团有限公司 | Crushing type rotary drum dryer |
| CN2847194Y (en) * | 2005-08-09 | 2006-12-13 | 张俊利 | Kiln special for flyash ceramic particles |
| CN100570253C (en) * | 2007-12-27 | 2009-12-16 | 辽宁中田干燥设备制造有限公司 | Three-return-stroke cylinder type drying machine |
| CN100573003C (en) * | 2007-12-27 | 2009-12-23 | 辽宁中田干燥设备制造有限公司 | Double-return-stroke cylinder type drying machine |
| CN201754019U (en) * | 2010-08-13 | 2011-03-02 | 辽宁中田干燥设备制造有限公司 | Energy-saving cartridge lignite drying and extraction apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017683A (en) * | 2019-03-11 | 2019-07-16 | 合肥禾源粮油有限公司 | A kind of foodstuff drying device using natural gas |
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Application publication date: 20101208 |