CN104776702A - Dryer or pyrolyzer - Google Patents
Dryer or pyrolyzer Download PDFInfo
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- CN104776702A CN104776702A CN201410012548.8A CN201410012548A CN104776702A CN 104776702 A CN104776702 A CN 104776702A CN 201410012548 A CN201410012548 A CN 201410012548A CN 104776702 A CN104776702 A CN 104776702A
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Abstract
The invention discloses a dryer or pyrolyzer. The dryer or pyrolyzer comprises a shell (1), a rotating material bed (2) and a truss support (3), wherein a cylinder support (4) can be added on the basis of the truss support; the top end of the cylinder support is supported in the center area of the bottom surface of the rotating material bed; the truss support is connected to and supported on the outer ring area, surrounding the center area, of the bottom surface of the rotating material bed; and the bottom end of the truss support and the bottom end of the cylinder support are arranged at intervals in the radial direction of the rotating material bed, and can be rotationally supported on a bottom bearing table structure (5) for supporting the rotating material bed to rotate in a revolving axle (OO'). The bottom end of the truss support is positioned between a feed pipe (13) and a discharge hole (21) in the radial direction of the rotating material bed. Two spaced rotating support points are obtained at the bottom of the rotating material bed, so that the rotating stability is largely improved, the material bearing weight is increased, and the rotating material bed is not liable to generate the buckling and the collapse. In addition, the fluidity of a material in a gap between a guide plate and the rotating material bed is effectively enhanced.
Description
Technical field
The present invention relates to a kind of drier or pyrolysis apparatus, the drier that especially a kind of material treating capacity is larger or pyrolysis apparatus.
Background technology
Brown coal are very abundant in the memory space of China, account for greatly about 40% of coal in China memory space, are mainly distributed in the provinces such as Yunnan, the Inner Mongol, northeast, Sichuan.The feature of brown coal is that water content is high, generally accounts for the proportion of 20-60%; Calorific value is low, be approximately 2500-4500 kilocalorie/kilogram; Fugitive constituent is high, about 40-50% (dry ash free basis).This coal market value is low, cost of transportation is high, generating efficiency is low and gasification technical difficulty is large.The market value of this type of coal is far below fat coal, and employing gas heat carrier technique pyrolysis brown coal therefrom can extract pyrolysis oil and high-quality oil product is processed in upgrading, extract hydrogen-rich gas for oil product upgrading, and produce high heating value semicoke for efficient burning and gasification.The convenient long-distance transport of semicoke after stabilization processes also significantly can save cost of transportation.To this type of coal and even all chemical industry conversion process materials of High water cut oil-containing coal and the classification integrated utilization of energy, utilization ratio and the coal that will significantly improve coal in China undoubtedly transform economic benefit.
At present for the treatment of the drier of brown coal or the disposal ability of pyrolysis apparatus relatively little, industrial front and the demand of China can not be met far away.Rotating material bed diameter in described drier or pyrolysis apparatus is up to more than 20 meters, and material treating capacity reaches more than kiloton/sky, therefore the volume structure of drier or pyrolysis apparatus and weight all very huge, therefore the structural stability of drier or pyrolysis apparatus is most important.
Disclose a kind of rotary furnace structure in United States Patent (USP) Us.Patent NO.4834650, its shell defines a closed furnace chamber, the wind mixed chamber close, be divided into below fixing in fixing furnace chamber and top rotating material bed.This is rotating material bed is made up of a truss, by tremie pipe pressure-bearing on spring bearing, this tremie pipe, not only as rotary part but also as support component, drives tremie pipe to rotate by the revolution of bearing, thus the rotation of driven rotary material bed, reach the rotation classification pyrolysis of brown coal.But because the intended diameter of tremie pipe and support and driving bearing is too small for rotating material bed, therefore to be only applicable to rotating material bed diameter little for this device, the occasion that material treating capacity is few, in other words has strict restriction to rotating material bed structure and supporting power.If rotating material bed quality is excessive, the flexing of its whole supporting construction (bearing and tremie pipe) will be caused to subside, thus strictly limit the amplification of this device and the service ability of device.
Summary of the invention
The object of this invention is to provide a kind of drier or pyrolysis apparatus, the reliability of its supporting construction is high, stable work in work, and material disposal ability is strong.
For achieving the above object, the invention provides a kind of drier or pyrolysis apparatus, comprise housing, be arranged on rotating material bed in this housing and be positioned at described rotating material bed top be used for material to be incorporated into described rotating material bed on feed pipe, described rotating material bed on offer for material being drawn described rotating material bed blanking hole, wherein, described drier or pyrolysis apparatus also comprise the truss support being arranged on described rotating material bed below, the top of this truss support is around being connected on described rotating material bed bottom surface, and bottom can be rotated to support on the suspended deck structure of bottom, to support described rotating material bedly to rotate along its axis of rotation, the position of described bottom in described rotating material bed radial direction between described feed pipe and described blanking hole of wherein said truss support.
Preferably, this drier or pyrolysis apparatus also comprise the cylinder being arranged on described rotating material bed below and support, the apical support that this cylinder supports is in described rotating material bed bottom center region, described truss support is on described rotating material bed outer region, bottom surface, the described bottom that the described bottom of described truss support and described cylinder support is arranged along described rotating material bed spaced radial, with rotating material bed described in common support.
Preferably, described drier or pyrolysis apparatus also comprise the transition pallet of tremie pipe and taper, the central area of described rotating material bed bottom surface is formed with blanking hole, the heavy caliber end of described transition pallet is connected with described blanking hole, small-caliber end is connected with described tremie pipe, and the top that described cylinder supports is connected on described rotating material bed bottom surface or on the male cone (strobilus masculinus) of described transition pallet.
Preferably, described drier or pyrolysis apparatus also comprise rotating driving device, and this rotating driving device supports revolution for driving described truss support or cylinder, thus drive described rotating material bedly to rotate along its axis of rotation.
Preferably, described drier or pyrolysis apparatus also comprise multiple rotary centering machine structure, and the circumferential interval of the sidewall that the plurality of rotary centering machine structure supports along described truss support and/or cylinder is arranged for rotation location.
Preferably, the respective bottom that described truss support and cylinder support is separately installed with multiple rotary carrier roller, described bottom suspended deck structure is formed with circular slide rail accordingly, and described truss support and cylinder are supported and be can be rotatably set on described circular slide rail by described rotary carrier roller.
Preferably, the respective bottom that described truss support and cylinder support is connected to circular slide rail, described bottom suspended deck structure corresponds to multiple rotary carrier rollers that described circular slide rail is provided with annular arrangement, described circular slide rail is rotatably supported on described rotary carrier roller.
Preferably, sidepiece or the bottom of above-mentioned housing are formed with air inlet, the described rotating material bed inner chamber corresponding area by described housing is divided into feed space and wind mixed chamber, described rotating material bed in be formed with gas channel, can pass from below through to make the hot gas carrier in wind mixed chamber and describedly rotating material bedly flow to described feed space; Wherein, described drier or pyrolysis apparatus also comprise in conjunction with described rotating material bed rotation with the deflector of directing material Radial Flow, this deflector is connected to described housing and bottom and described rotating material bed upper surface interval, the bottom of described deflector is formed with the negative pressure chamber under shed, can flow to make the material of described deflector side under suction function towards the described negative pressure chamber direction of opposite side.
Preferably, a sidewall of the bottom of described deflector is provided with lapping plate, and one end of this lapping plate is overlapped on described sidewall, the other end to downward-extension, to form described negative pressure chamber between described lapping plate and the sidewall of described deflector.
Preferably, described rotating material bed on be provided with and form multiple through holes of described gas channel.
Preferably, described deflector is polylith, and this polylith deflector is arranged in order along described rotating material bed radial direction, so that material is inwardly drained to blanking hole.
Preferably, described drier or pyrolysis apparatus also comprise the communicating pipe be arranged in described feed space, and the upper end open of this communicating pipe is positioned at described feed space or extends upwardly to outside described housing, and lower ending opening inserts in described negative pressure chamber.
In the heating furnace above-mentioned according to the present invention, the rotating material bed support being no longer dependent on tremie pipe, but truss support and cylinder support is provided with in rotating material bed below, the diameter that cylinder supports is greater than tremie pipe, plays better supporting role for rotating material bed.In the periphery that cylinder supports, by truss support, secure support is carried out to rotating material bed outer region, and the bottom of truss support is no longer connected on cylinder support or tremie pipe, but support the same being rotatably supported on respectively on the suspended deck structure of bottom with cylinder.Like this, rotating material bed bottom obtains two rotatable strong points (ring) at interval, thus rotating material bed rotational stabilization is increased greatly, improve rotating material bed on the load capacity of material, not easily produce flexing and subside.In addition, by the Curve guide impeller to deflector, make the side of deflector form negative pressure chamber, can effectively strengthen deflector and rotating material bed between the mobility of material of gap location.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the drier of a preferred embodiment of the invention or the structural representation of pyrolysis oven;
Fig. 2 is according to the drier of another kind of preferred embodiment of the present invention or the structural representation of pyrolysis oven;
Fig. 3 illustrates the layout schematic diagram of rotating driving device in Fig. 2 and rotary centering machine structure;
Fig. 4 illustrates the rotary sliding structure that truss support or cylinder support a kind of preferred implementing form formed between the suspended deck structure of bottom;
Fig. 5 is the partial enlarged drawing of the rotary centering machine structure part enclosed in Fig. 2;
Fig. 6 be rotating material bed a kind of preferred constructive form in Fig. 2 and this rotating material bed on the layout of deflector, wherein for clarity sake, only show the part through hole as gas channel of rotating material bed upper setting; And
Fig. 7 is the mounting structure between the rotating material bed and deflector shown in Fig. 6, and the inner side of deflector is wherein formed with negative pressure chamber to strengthen the material stream passed performance of deflector installation place.
description of reference numerals
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the noun of locality of use as " upper and lower " normally for direction shown in the drawings or for each parts mutual alignment relationship description word vertically, on vertical or gravity direction; Similarly, for ease of understanding and describing, " left and right " is normally for shown in the drawings left and right; " inside and outside " refers to profile inside and outside relative to each parts itself, but the above-mentioned noun of locality is not limited to the present invention.
In a kind of embodiment as shown in Figure 1, the present invention provide firstly a kind of drier or pyrolysis apparatus, can be used for the materials such as process brown coal, it truss support 3 comprising housing 1 and be arranged on rotating material bed 2 in this housing and be arranged on below rotating material bed 2, the top of this truss support 3 is around being connected on the bottom surface of rotating material bed 2, and bottom can be rotated to support on the suspended deck structure 5 of bottom, to support rotating material bed 2 along its axis of rotation OO ' rotation.Wherein, feed pipe 13 is used for material to be incorporated on rotating material bed 2 above being positioned at rotating material bed 2, also offer for material being drawn rotating material bed blanking hole 21 on rotating material bed 2.Generally speaking, on rotating material bed 2, the one in blanking hole 21 and feed pipe 13 is arranged on center position, and another one is then arranged on outward flange adjoining position place.Thus make material on rotating material bed 2, follow rotating material bed 2 to rotate and produce and move radially to correspondingly interior or outside, finally flow out from blanking hole 21.In the present invention, for making rotating material bed 2 to obtain better support, the position of bottom in the radial direction of rotating material bed 2 between feed pipe 13 and blanking hole 21 of described truss support 3.
As total design concept, for being adapted to construction weight and the increasing drier of size or pyrolysis apparatus, the layout of the present invention to rotating material bed Support Position, supporting construction and drives structure has carried out targeted design.Specifically, more than 20 meters are reached for diameter and supporting power large rotating material bed 2, be no longer dependent on the support of tremie pipe 6, but be provided with truss support 3 especially in the below of rotating material bed 2, play the larger and better supporting role of scope for rotating material bed 2.And the bottom of truss support 3 is not be connected to cylinder as described below to support on 4 or tremie pipe 6, but rotatably independent support on bottom suspended deck structure 5.If Fig. 2 can be ground supports basis as the bottom suspended deck structure 5 of bottom support point, or special other supporting construction of absolute construction arranged, below will describe in detail, and bottom suspended deck structure 5 is preferably arranged on the radial center position between the axis of rotation of rotating material bed 2 and outward flange, to make rotating material bed 2 to obtain more stable support, but the present invention is not limited thereto.Designed by said structure, for the overall structure of drier or pyrolysis apparatus, owing to making rotating material bed 2 to obtain independently secure support, thus rotational stabilization is higher, so improve equipment compactedness, take up room less.
Further, in the another kind of embodiment shown in Fig. 2, also preferably include according to drier of the present invention or pyrolysis apparatus the cylinder be arranged on below rotating material bed 2 and support 4, this cylinder supports the apical support of 4 in the bottom center region of rotating material bed 2, truss support 3 is supported on the outer region, bottom surface of rotating material bed 2, the bottom that the bottom of truss support 3 and cylinder support 4 is arranged along the spaced radial of rotating material bed 2, with common support rotating material bed 2.The diameter of cylinder support 4 is greater than tremie pipe 6, the periphery of 4 is supported at cylinder, by truss support 3 to rotating material bed 2 outer region carry out secure support, like this, arrange at spaced radial on the basis of truss support 3 and cylinder support 4, the bottom of rotating material bed 2 can obtain two rotatable strong points (ring) at interval, thus the rotational stabilization of rotating material bed 2 is increased greatly, improve the load capacity of the material on rotating material bed 2 further, not easily produce flexing and subside.
Wherein, the sidepiece of housing 1 or bottom are formed with air inlet 12, and this air inlet 12 is more preferably arranged on the sidewall of housing 1, thus reduce the whole height of drier or pyrolysis apparatus.In the present embodiment, the top of housing 1 is provided with towards the feed pipe 13 of the outer ring portion of the upper surface of rotating material bed 2, the inner chamber corresponding area of housing is divided into feed space A and wind mixed chamber B by rotating material bed 2, gas channel 22(is formed with see Fig. 6 and Fig. 7) in rotating material bed 2, rotating material bed 2 can be passed from below through to make the hot gas carrier in wind mixed chamber B and flow to feed space A, drying or pyrolysis are carried out to the material on rotating material bed 2.As depicted in figs. 1 and 2, the outer ring portion of rotating material bed 2 aimed at by feed pipe 13 in present embodiment, the solid accumulation that feed pipe 13 falls is in the outer ring portion of rotating material bed 2, during rotating material bed 2 rotation, material is followed rotation and is progressed into the blanking hole 21 at rotating material bed 2 centers by the deflector 15 shown in Fig. 6.In the process, the hot gas carrier that air inlet 12 enters provides heat through the drying that is material of the gas channel 22 on rotating material bed 2 or pyrolytic reaction, and the material after dry or pyrolysis flows out from blanking hole 21 via tremie pipe 6, enters next stage treating apparatus.
Truss support 3 in the present invention is different from the conventional truss being arranged on rotating material bed below, the bottom of this conventional truss supports in tremie pipe 6 or cylinder support 4, truss support in the present invention 3 is as depicted in figs. 1 and 2, for diameter span larger rotating material bed 2 outer ring portion, the bottom of truss support 3 is supported on the non-end positions place of radial direction of outer ring portion, be preferably middle position, thus make rotating material bed 2 to obtain best stable support effect.Wherein, this truss support 3 preferably includes outer support bar a, inner bracing piece b and middle studdle c, outer support bar a is supported between the outer peripheral edge portion of the bottom of truss support 3 and the bottom of rotating material bed 2, one end of inner bracing piece b is connected to the bottom of truss support 3, the other end is connected to the inner annular edge of rotating material bed 2, middle studdle c be arranged on outer support bar a, inner bracing piece b and rotating material bed 2 bottom surface outer region three around formed space in.By the truss support 3 of this structure, cover the whole outer ring portion supporting rotating material bed 2, the rotatable strong point in bottom is preferably roughly positioned at center of gravity, thus the structure of rotating material bed 2 is stablized the most and obtained the support effect optimized.Certainly, those skilled in the art, it is understood that lattice supporting framework is herein only example, can carry out targeted design for rotating material bed design feature, such as inner bracing piece b be connected to cylinder support 4 outer wall first-class, like thisly not repeat them here.
In the present embodiment, drier or pyrolysis apparatus also preferably include the transition pallet 7 of tremie pipe 6 and taper, and the central area of the bottom surface of rotating material bed 2 is formed with blanking hole 21 as shown in Figure 6.The heavy caliber end of transition pallet 7 is connected with blanking hole 21, and small-caliber end is connected with tremie pipe 6.On the bottom surface that the top that cylinder supports 4 is linked optionally with rotating material bed 2 or on the male cone (strobilus masculinus) of transition pallet 7.When the top of cylinder support 4 is connected on the bottom surface of rotating material bed 2, the diameter of cylinder support 4 can be greater than the heavy caliber end of transition pallet 7, play good support effect, but the tip portion supporting 4 due to cylinder is in high-temperature area in wind mixed chamber B, requires high to material.When the top of cylinder support 4 is connected on the male cone (strobilus masculinus) of transition pallet 7, then the internal face of cylinder support 4 is in normal temperature region, and outside wall surface is in high-temperature area, only needs to do high-temperature process to outside wall surface.Preferably, heat insulation process can be carried out to the inwall of housing 1, such as, paste heat insulation felt, heat insulation felt has built pouring material again, to prevent high-temperature hot gas carrier to external diffusion.The outer wall of cylinder support 4 carries out heat insulation process equally, thus the supporting construction that cylinder is supported in 4 isolates high-temperature gas, to strengthen supporting construction intensity.In addition, the both sides of the truss support 3 in the middle part of housing 1 and wind mixed chamber B are also respectively equipped with water seal 14, for hot gas carrier and extraneous normal temperature and rotatable parts and stationary parts being separated, preventing collaborating of whole equipment, equipment can be run well.Described water seal 14 also can adopt the hermetically-sealed construction of the forms such as sand seal.In a preferred embodiment, described cylinder supports 4, rotating material bed 2, transition pallet 7 and tremie pipe 6 are fixed together by modes such as welding, to avoid repetition and numerous and diverse design of Sealing Structure, the stability of raising system cloud gray model and security.
After being provided with truss support 3 and cylinder support 4, need the rotatable supporting construction of relative set.Preferably, the bottom of cylinder support 4 can be provided with bottom suspended deck structure 5, to alleviate the carrying of the bottom suspended deck structure 5 of truss support 3 bottom.But, enough reliably firm at the bottom suspended deck structure 5 of truss support 3 bottom, or cylinder supports the bottom installing space of 4 by limited time, and the bottom of cylinder support 4 also can arrange bottom suspended deck structure 5, and cylinder supports 4 and can rotate with rotating material bed 2 under the drive of truss support 3.The bottom being preferably truss support 3 and cylinder support 4 is in the present embodiment provided with identical bottom suspended deck structure 5.As shown in Figure 4, the respective bottom of truss support 3 and cylinder support 4 is connected to circular slide rail 11, bottom suspended deck structure 5 corresponds to multiple rotary carrier rollers 10 that circular slide rail 11 is provided with annular arrangement, the central axis of each rotary carrier roller 10 is arranged along circular radial direction, rotary carrier roller 10 passes through bracket pressure-bearing on bottom suspended deck structure 5, thus circular slide rail 11 is rotatably supported on rotary carrier roller 10.Like this, the bottom of truss support 3 and cylinder support 4 all can be slided on rotary carrier roller 10.Rotary carrier roller 10 shown in Fig. 4 also preferably can be arranged on the below on suspended deck structure 5 surface, bottom, namely forms recess track.Recess track can play position-limiting action to the circular slide rail 11 of pressure-bearing on it.Certainly, selectively, the respective bottom of truss support 3 and cylinder support 4 also can be separately installed with multiple rotary carrier roller 10, bottom suspended deck structure 5 is formed with circular slide rail 11 accordingly, truss support 3 and cylinder support 4 and can be rotatably set on circular slide rail 11 by rotary carrier roller 10, can realize the function of above-mentioned rotatable support equally.
After the structure forming rotatable support, need reasonably to arrange rotating driving device 8 to drive rotating material bed 2.In the present embodiment, this rotating driving device 8 is set to for driving truss support 3 or cylinder to support 4 revolutions, thus driven rotary material bed 2 is along its axis of rotation OO ' rotation.Particularly, rotating driving device 8 is preferably the multiple and rotary track interval supporting the bottom of 4 along truss support 3 or cylinder and arranges.Be illustrated in figure 3 four rotating driving devices 8 be circumferentially evenly arranged, to ensure the stability of rotation and normal operation, even if one of them rotating driving device 8 breaks down, its excess-three rotating driving device 8 still can ensure the normal operation of whole device.Multiple rotating driving device 8 can be arranged on inner side or the outside of truss support 3 or cylinder support 4, has illustrated and be arranged on the situation that cylinder supports the inwall of 4 in Fig. 3.Preferably, rotating driving device 8 adopts hydraulic-driven, and hydraulic-driven has overload protection performance, can play the protective effect to equipment under accident jam operating mode.Particularly, this hydraulically powered rotating driving device 8 comprises hydraulic motor and external tooth driving wheel, the sidewall of truss support 3 or cylinder support 4 is correspondingly provided with annular internal tooth, the output shaft of hydraulic motor connects and drives external tooth driving wheel to rotate, thus by the engaged transmission of external tooth driving wheel and annular internal tooth driving truss support 3 or cylinder support 4 and rotate.
The weight of the deadweight due to rotating material bed 2 and carrying material is larger, rotation offset is produced under external force unavoidably in rotary course, now quality large rotating material bed 2 skew inertia force large, will overall structure stability and the reliability of drier or pyrolysis apparatus be had a strong impact on.For this reason, drier in present embodiment or pyrolysis apparatus also preferably include multiple rotary centering machine structure 9, the circumferential interval that the plurality of rotary centering machine structure 9 supports the sidewall of 4 along truss support 3 and/or cylinder is arranged, for rotation location, rotating material bed 2 are made to remain around its axis of rotation OO ' rotation.As shown in Figure 5, as a preferred structure, rotary centering machine structure 9 comprises hold-down support 91, return springs 92 and centering wheel 93, centering wheel 93 to be arranged on hold-down support 91 by rotating shaft and can around rotating shaft rotation, and centering wheel 93 can elasticity contact and supports on the sidewall of 4 in truss support 3 or cylinder under the effect of return springs 92.Wherein, when rotating material bed 2 produce skew, then return springs 92 produces Flexible Reset power.Rotation between the sidewall that centering wheel 93 and truss support 3 and/or cylinder support 4 contacts does not affect the rotation that truss support 3 or cylinder support 4 yet.As shown in Figure 3, rotary centering machine structure 9 is multiple, and the plurality of rotary centering machine structure 9 supports the bottom of 4 rotational trajectory along cylinder is evenly distributed, and the centering wheel 93 of rotary centering machine structure 9 contacts the angle steel part that the sidewall of cylinder support 4 protrudes rotationally.
As fully visible, in above-mentioned drier or pyrolysis apparatus, by setting up truss support 3 and cylinder support 4, rotating material bed 2 are made to obtain the rotatable support in many places, for for production capacity increase, diameter increases rotating material bed 2, obtain good support, there is good resistant to tipping ability, substantially increase rotational stabilization.The diameter of rotating material bed 2 increases, then the corresponding increase of the structure of truss support 3, the bottom support point of truss support 3 and cylinder support the bottom support point interval also corresponding increase of 4.Support separately compared to supporting 4 by tremie pipe 6 or cylinder, the peripheral edge portion being even included in rotating material bed 2 carries out combination support, and support effect of the present invention and supporting construction are all more simple, stable.
Further, on the basis of the above, present invention also offers and a kind of there is rotating material bed drier or pyrolysis apparatus.Shown in composition graphs 2, Fig. 6 and Fig. 7, this drier or pyrolysis apparatus also comprise in conjunction with rotating material bed 2 rotation with the deflector 15 of directing material Radial Flow, this deflector be connected to housing 1 and bottom and rotating material bed 2 upper surface interval, the bottom of deflector 15 is formed with the negative pressure chamber C under shed, to make the material of deflector 15 side can flow towards the negative pressure chamber C direction of opposite side under suction function, namely by the clearance D Radial Flow between deflector 15 and rotating material bed 2.In the present embodiment, material radially-inwardly moves, then negative pressure chamber C is arranged on the inner side of deflector 15, and when material radially outward moves, negative pressure chamber C is arranged on the outside of deflector 15.Wherein, deflector 15 is fixedly installed and does not follow rotating material bed 2 rotations, and thus there is a determining deviation between deflector 15 and rotating material bed 2, the width of this clearance D is generally 20-30mm, and thickness of feed layer is generally 200-400mm simultaneously.When rotating material bed 2 remain a constant speed under the driving of rotating driving device 8 rotate time, rotation followed by material.In the present embodiment, by feed pipe 13 enter into material on rotating material bed 2 by be fixed on housing 1 and lower outstanding scraper plate (not shown) scrape smooth after, be deposited in the outer ring portion of rotating material bed 2, moved by the backward annular inner portion of rotating material bed 2 of the guiding of deflector 15, after rotating a few until the central area of rotating material bed 2, and discharge from center blanking hole 21.Meanwhile, the hot gas carrier in wind mixed chamber B enters bottom rotating material bed 2, through rotating material bed 2 and above the bed of material, discharge from the top of feed space A.But rotating with in dry process, the gravity of material on rotating material bed 2 due to self bed of material and the problem of rotating material bed 2 body structures, the mobility of the material between deflector 15 and rotating material bed 2 is poor, easy blocking, in the both sides of clearance D and deflector 15, forms material Stagnation zones.For this reason, the present invention's purpose of design is herein the mobility of the material increased between deflector 15 and rotating material bed 2, eliminates material Stagnation zones, makes the flowing of whole material on rotating material bed 2 smooth and easy.Therefore, the present invention carries out Curve guide impeller to deflector 15, make the inner side of deflector 15 (towards the side of center blanking hole 21, the material of this side when rotating material bed 2 rotate along the direction of rotation w shown in Fig. 6 in the face of rotating) form negative pressure chamber C, flow to the inside via the clearance D between deflector 15 bottom and rotating material bed 2 to guide the material in outside, prevent solid accumulation in clearance D or outside clearance D, thus avoid forming stream retardance in deflector 15 bottom, prevent the material blocked by overdrying or pyrolysis, strengthen rotating material bed on the mobility of material.
As shown in Figure 7, in conjunction with hot gas carrier by the flow direction after gas channel 22, devise a kind of simple structure in present embodiment to form above-mentioned negative pressure chamber C.Wherein, the madial wall of the bottom of deflector 15 is provided with lapping plate 151, one end of this lapping plate 151 is overlapped on madial wall, the other end is to downward-extension, gas continues to flow out via gas channel 22, make to form certain negative pressure in the semiclosed chamber between the lapping plate 151 shown in Fig. 7 and the madial wall of deflector 15, thus between lapping plate 151 and the madial wall of deflector 15, form described negative pressure chamber C.Be piled up in the material flowing in fluidisation state under suction function in clearance D or outside clearance D, can be smooth and easy by this clearance D.
Above-mentioned lapping plate 151 in Fig. 7 is formed as " L " shape plate, to form described negative pressure chamber C in conjunction with the madial wall of deflector 15.Closure plate also can be set up in the two ends penetrating paper direction of the lapping plate 151 in Fig. 7, with lateral seal chamber.Certainly, lapping plate 151 also can be formed as other shape and structure, the form of such as arc.
As shown in Figure 6, rotating material bed 2 in the present invention is preferably Circular Plate, and the centre bore of Circular Plate is formed as blanking hole 21.In the present embodiment, be provided with multiple through hole on rotating material bed 2, this through hole runs through gas channel 22 and arranges using as said flow passage 22.Wherein, the shape, size, percent opening etc. of through hole are determined by technology Calculation.In figure 6 and figure 7 for clarity sake, only show rotating material bed on part through hole.This is rotating material bed 2 in conjunction with the above-mentioned deflector 15 being provided with lapping plate 151, negative pressure chamber C can be formed when gas flows continuously through gas channel 22, and the upper surface of rotating material bed 2 is preferably radially tilted to down from outside to inside, gas channel 22 is formed as level or is tilted to down, material then on rotating material bed 2 can move inward along inclined plane in rotary course, is conducive to Flow of Goods and Materials.
Wherein, deflector 15 is preferably polylith, can according to the parameter such as length, setting angle of the flow behavior relative set deflector 15 of material, and such as this polylith deflector 15 is arranged in order along the radial direction of rotating material bed 2, progressively material is inwardly drained to blanking hole 21.
After the described negative pressure chamber C of formation, as shown in Figure 7, be also provided preferably with communicating pipe 152, the upper end open of this communicating pipe 152 is positioned at feed space A, and lower ending opening is inserted in the negative pressure chamber C inside deflector 15.Can be used as communicating pipe 152 purging pipeline, carry out air-blowing to pass into the upper surface of gas to rotating material bed 2 after negative pressure region and work, clear just remaining material, realizes the self-cleaning function of negative pressure region.Further, after arranging communicating pipe 152, because the air pressure of feed space A is low, the air pressure in wind mixed chamber B is high, strengthens the vacuum effect of negative pressure chamber C further, increases the mobility of the material of above-mentioned material Stagnation zones.
In addition when mounted, as shown in Figure 7, deflector 15 can be connected to the lower end of communicating pipe 152, and communicating pipe 152 is then upwards installed on housing 1, such as, unify to be installed on the crossbeam in housing 1 with scraper plate etc.
Visible, according to the deflector of said structure and rotating material bed, can strengthen rotating material bed on the mobility of material, prevent deflector and rotating material bed between the material of gap location block, pile up.
To sum up, the drier designed by the present invention or pyrolysis apparatus are particularly useful for the large-scale dry or pyrolysis processing of industrialization of the materials such as brown coal.While the increase of rotating material bed diameter, deadweight and carrying weight of material all increase, stable and reliable support can be obtained, improve the process production capacity of drier or pyrolysis apparatus.And, according to technological requirement, by the Curve guide impeller of deflector, effectively improve rotating material bed on the mobility of material.In present embodiment, for the brown coal material that particle diameter is 3 ~ 80mm, material thickness on rotating material bed 2 is 200 ~ 400mm, the external diameter of rotating material bed 2 is 22m, rotary speed is 0.4r/min, rotating material bed 2 and the weight of material reach 250 tons, the diameter that cylinder supports 4 is 9m, the temperature of hot gas carrier is 450 ~ 650 DEG C, and the processing time of the Rotary drying of material on rotating material bed 2 or pyrolysis is 15-70min.Brown coal treating capacity every day of this drier or pyrolysis apparatus reaches 3500 tons/day.Visible, be applicable to the heavy industrialization application of the materials such as brown coal according to drier of the present invention or pyrolysis apparatus, can physical dimension be increased relative to existing drier or pyrolysis apparatus, enhance production capacities.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible combination.
In addition, also can be combined between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (12)
1. a drier or pyrolysis apparatus, comprise housing (1), be arranged on rotating material bed (2) in this housing and be positioned at described rotating material bed (2) top and be used for the feed pipe (13) that is incorporated into by material on described rotating material bed (2), described rotating material bed (2) offer for material being drawn described rotating material bed blanking hole (21), it is characterized in that, described drier or pyrolysis apparatus also comprise the truss support (3) being arranged on described rotating material bed (2) below, the top of this truss support (3) is around being connected on the bottom surface of described rotating material bed (2), and bottom can be rotated to support on bottom suspended deck structure (5), rotate along its axis of rotation (OO ') to support described rotating material bed (2), the described bottom of wherein said truss support (3) is positioned at the position between described feed pipe (13) and described blanking hole (21) in the radial direction of described rotating material bed (2).
2. drier according to claim 1 or pyrolysis apparatus, it is characterized in that, this drier or pyrolysis apparatus also comprise the cylinder being arranged on described rotating material bed (2) below and support (4), this cylinder supports the apical support of (4) in the bottom center region of described rotating material bed (2), described truss support (3) is supported on the outer region, bottom surface of described rotating material bed (2), the described bottom that the described bottom of described truss support (3) and described cylinder support (4) is arranged along the spaced radial of described rotating material bed (2), with rotating material bed described in common support (2).
3. drier according to claim 2 or pyrolysis apparatus, it is characterized in that, described drier or pyrolysis apparatus also comprise the transition pallet (7) of tremie pipe (6) and taper, the central area of the bottom surface of described rotating material bed (2) is formed with described blanking hole (21), the heavy caliber end of described transition pallet (7) is connected with described blanking hole (21), small-caliber end is connected with described tremie pipe (6), on the bottom surface that the top that described cylinder supports (4) is connected to described rotating material bed (2) or on the male cone (strobilus masculinus) of described transition pallet (7).
4. drier according to claim 2 or pyrolysis apparatus, it is characterized in that, described drier or pyrolysis apparatus also comprise rotating driving device (8), this rotating driving device (8) supports (4) revolution for driving described truss support (3) or cylinder, thus drives described rotating material bed (2) to rotate along its axis of rotation (OO ').
5. drier according to claim 4 or pyrolysis apparatus, it is characterized in that, described drier or pyrolysis apparatus also comprise multiple rotary centering machine structure (9), and the circumferential interval that the plurality of rotary centering machine structure (9) supports the sidewall of (4) along described truss support (3) and/or cylinder is arranged for rotation location.
6. drier according to claim 2 or pyrolysis apparatus, it is characterized in that, the respective bottom that described truss support (3) and cylinder support (4) is separately installed with multiple rotary carrier roller (10), described bottom suspended deck structure (5) is formed with accordingly circular slide rail (11), described truss support (3) and cylinder are supported (4) and be can be rotatably set on described circular slide rail (11) by described rotary carrier roller.
7. drier according to claim 2 or pyrolysis apparatus, it is characterized in that, the respective bottom that described truss support (3) and cylinder support (4) is connected to circular slide rail (11), described bottom suspended deck structure (5) is upper corresponds to multiple rotary carrier rollers (10) that described circular slide rail (11) is provided with annular arrangement, and described circular slide rail (11) is rotatably supported on described rotary carrier roller (10).
8. according to the drier in claim 1-7 described in any one or pyrolysis apparatus, it is characterized in that, the sidepiece of described housing (1) or bottom are formed with air inlet (12), the inner chamber corresponding area of described housing is divided into feed space (A) and wind mixed chamber (B) by described rotating material bed (2), be formed with gas channel (22) in described rotating material bed (2), described rotating material bed (2) can be passed from below through to make the hot gas carrier in wind mixed chamber (B) and flow to described feed space (A);
Wherein, described drier or pyrolysis apparatus also comprise rotation in conjunction with described rotating material bed (2) with the deflector of directing material Radial Flow (15), this deflector is connected to described housing (1) and the upper surface interval of bottom and described rotating material bed (2), the bottom of described deflector (15) is formed with the negative pressure chamber (C) under shed, can flow to make the material of described deflector (15) side under suction function towards described negative pressure chamber (C) direction of opposite side.
9. drier according to claim 8 or pyrolysis apparatus, it is characterized in that, a sidewall of the bottom of described deflector (15) is provided with lapping plate (151), one end of this lapping plate (151) is overlapped on described sidewall, the other end to downward-extension, to form described negative pressure chamber (C) between described lapping plate (151) and the sidewall of described deflector (15).
10. drier according to claim 8 or pyrolysis apparatus, is characterized in that, described rotating material bed (2) is provided with the multiple through holes forming described gas channel (22).
11. drier according to claim 8 or pyrolysis apparatus, is characterized in that, described deflector (15) is polylith, and this polylith deflector (15) is arranged in order along the radial direction of described rotating material bed (2), material to be drained to described blanking hole (21).
12. drier according to claim 8 or pyrolysis apparatus, it is characterized in that, described drier or pyrolysis apparatus also comprise the communicating pipe (152) be arranged in described feed space (A), the upper end open of this communicating pipe (152) is positioned at described feed space (A) or extends upwardly to described housing (1) outward, and lower ending opening inserts in described negative pressure chamber (C).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410012548.8A CN104776702B (en) | 2014-01-10 | Exsiccator or pyrolysis apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410012548.8A CN104776702B (en) | 2014-01-10 | Exsiccator or pyrolysis apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104776702A true CN104776702A (en) | 2015-07-15 |
| CN104776702B CN104776702B (en) | 2016-11-30 |
Family
ID=
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677063A (en) * | 2017-11-23 | 2018-02-09 | 黄石市建材节能设备总厂 | A kind of energy-saving safe clean moulded coal drying system |
| CN107702511A (en) * | 2017-11-23 | 2018-02-16 | 黄石市建材节能设备总厂 | Circulation clean moulded coal drying machine in a kind of |
| CN108431182A (en) * | 2015-11-04 | 2018-08-21 | 哈夫纳能源公司 | The equipment thermally decomposed stage by stage |
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| US3859172A (en) * | 1973-04-18 | 1975-01-07 | Salem Corp | Multiple rabbled rotary hearth |
| US4834650A (en) * | 1988-06-14 | 1989-05-30 | Salem Furnace Co. | Sealed rotary hearth furnace with central bearing support |
| CN203007214U (en) * | 2012-10-19 | 2013-06-19 | 神华集团有限责任公司 | Rotary heating device |
| CN103388980A (en) * | 2012-05-07 | 2013-11-13 | 北京低碳清洁能源研究所 | Drying furnace or pyrolyzing furnace with rotary material bed |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3859172A (en) * | 1973-04-18 | 1975-01-07 | Salem Corp | Multiple rabbled rotary hearth |
| US4834650A (en) * | 1988-06-14 | 1989-05-30 | Salem Furnace Co. | Sealed rotary hearth furnace with central bearing support |
| CN103388980A (en) * | 2012-05-07 | 2013-11-13 | 北京低碳清洁能源研究所 | Drying furnace or pyrolyzing furnace with rotary material bed |
| CN203007214U (en) * | 2012-10-19 | 2013-06-19 | 神华集团有限责任公司 | Rotary heating device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108431182A (en) * | 2015-11-04 | 2018-08-21 | 哈夫纳能源公司 | The equipment thermally decomposed stage by stage |
| CN108431182B (en) * | 2015-11-04 | 2020-11-10 | 哈夫纳能源公司 | Staged pyrolysis apparatus |
| CN107677063A (en) * | 2017-11-23 | 2018-02-09 | 黄石市建材节能设备总厂 | A kind of energy-saving safe clean moulded coal drying system |
| CN107702511A (en) * | 2017-11-23 | 2018-02-16 | 黄石市建材节能设备总厂 | Circulation clean moulded coal drying machine in a kind of |
| CN107702511B (en) * | 2017-11-23 | 2022-11-25 | 湖北金炉节能股份有限公司 | Clean moulded coal desiccator of inner loop |
| CN107677063B (en) * | 2017-11-23 | 2023-06-16 | 湖北金炉节能股份有限公司 | Safe energy-saving clean molded coal drying system |
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Address after: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Patentee after: CHINA ENERGY INVESTMENT Corp.,Ltd. Patentee after: Beijing low carbon clean energy research institute Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee before: SHENHUA GROUP Corp.,Ltd. Patentee before: Beijing low carbon clean energy research institute |