CN103435246B - Municipal sludge drying device - Google Patents
Municipal sludge drying device Download PDFInfo
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- CN103435246B CN103435246B CN201310376936.XA CN201310376936A CN103435246B CN 103435246 B CN103435246 B CN 103435246B CN 201310376936 A CN201310376936 A CN 201310376936A CN 103435246 B CN103435246 B CN 103435246B
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Abstract
The invention belongs to the field of solid waste treatment, and in particular relates to a municipal sludge drying device. The municipal sludge drying device comprises a roller with an axial line obliquely arranged and a driving component for driving the roller to rotate along the axial line thereof, wherein an accommodating cavity for accommodating sludge is formed in the roller; the accommodating cavity stretches and penetrates in an axial direction of the roller, and a feeding end of the accommodating cavity is positioned at the high end of the roller while a discharging end is arranged on the low end of the roller. Furthermore, the municipal sludge drying device comprises a heat supply passage for supplying heat to the accommodating cavity and an air return passage for collecting and removing fly ash waste heat after drying wet sludge, and the heat supply passage is arranged in a manner of communicating with the accommodating cavity; an air intake end of the air return passage is communicated with the accommodating cavity, and an air exhaust end is communicated with external fly ash waste heat treatment equipment. The municipal sludge drying device is high in sludge drying efficiency, and can avoid environmental pollution or even personal safety and other circumferences caused by a conventional device which discharges the fly ash waste heat along with the dry sludge; the municipal sludge drying device is concise in structure, reliable to operate, high in working efficiency, and safe and stable.
Description
Technical field
The invention belongs to fixed-end forces field, be specifically related to a kind of municipal sludge desiccation apparatus.
Background technology
Along with continuous quickening and the modernization industrial expansion of urbanization process.The annual whole world all can produce all kinds of municipal sludge and the industrial sludge of enormous amount.For this reason, people start to seek certain suitable technology mode effectively to process above-mentioned mud.Sludge drying technique a kind ofly common effectively can reduce moisture percentage in sewage sludge so that it proceeds the technology of subsequent disposal, specifically be and in custom-designed equipment, mud heated, evaporate the process of wherein moisture, it not only can realize the removal effect for " free water " in mud effectively, also all can play rapid evaporation object to " interstitial water ", " surface-bonded water " and even " internal junction Heshui " wherein simultaneously; Because this technology can according to the requirement of subsequent disposal operation, by sludge drying to the water ratio of specifying, therefore it is widely used in existing sludge drying process.
Sludge drying uses special sludge drying machine usually, using steam, high-temperature flue gas or the thermal oil be just heated and even sun power as thermal source, adopts direct or indirect type of heating, is aided with mixing and stirs, and then reaching its mummification object.Wherein, direct heat transfer formula sludge drying machine, described by all having in the texts such as this patent of invention " sludge drying process and equipment " of applying on June 22nd, 2010 for Suzhou Zili Chemical Equipment Co., Ltd. application people, it is mostly using high temperature flue-gas from boiler etc. as thermal source, directly contact with wet mud after making it enter desiccation machine, by thermal convection mode directly to take the moisture in wet mud out of; This kind of mode dehumidification rate is high, but contacts and precipitation with the direct of wet mud due to a large amount of flue gas, causes dust content in flying dust used heat huge, again because of without appropriate follow-up dust separation measure, is often easy to produce the potential safety hazards such as dust explosion.In indirect heat transmission type sludge drying machine, mud does not directly contact with thermal source, but carry out heat transmission by heat conducting mode, as applied for, people is that Zhejiang University just gives a kind of indirect heat transmission type sludge drying mode in the patent of invention " sludge anhydration burning Integrated Processing System and technique thereof " that on April 19th, 2012 applies for, because mud and thermal source are separated by artificial, it is good that it adds heat smoke degree of cleaning, without relevant dust hidden danger, therefore uses more, but, due to current indirect heat transmission type desiccation machine or adopt similar pot and stove static state training dry mode, its inside is caused to produce sludge settling under gravity and occur unilateral heating phenomenon, heat even not, thus cause pending mud evenly to parch, dehumidification rate is poor, even if as determining in aforementioned patent text, dynamic tooth interlocks and moves the mode that tooth is hollow Flue duct design, its mode also not only causes its complex structure lengthy and tedious, safeguard extremely inconvenience, mud in it also can be caused to occur drying the phenomenon with direct sintering determining a large amount of alluvial in tooth lower chamber simultaneously, in addition, because its dynamic tooth flank of tooth is that its rotor shaft direction vertical is arranged, how to ensure mud discharging object after the drying, obviously cannot conclusive realization with regard to its mechanism, in addition, current sludge drying machine, due to the mud that its mud container cavity needs frequent contact dry or wet all the time, the container cavity wear rate after its severe friction is high, also often has influence on the efficiency of actual of complete machine work-ing life.How developing a kind of municipal sludge desiccation apparatus rational in infrastructure, thus make it certain play convenient and high efficiency sludge drying object, is compeled technical barrier to be solved nearly ten years both at home and abroad.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of rational in infrastructure and municipal sludge desiccation apparatus of practicality is provided, the high and safety and stability of its working efficiency.
For achieving the above object, present invention employs following technical scheme:
A kind of municipal sludge desiccation apparatus, is characterized in that: comprise the tilted-putted cylinder of axis and the driven unit for driving this cylinder to rotate along its axis, drums inside has the container cavity holding mud; Container cavity is postponed along cylinder axial direction due and is run through setting, and its feed end is in the high end of cylinder, and its discharge end is positioned at the end portion of cylinder; Municipal sludge desiccation apparatus also comprise heat donor passage for supplying container cavity heat and collection and eliminating wet mud dry after the return air channel of flying dust used heat, described heat donor passage is communicated with container cavity and arranges; Return air channel air intake is communicated with container cavity, and outlet air end is communicated in outside flying dust used heat treatment facility.
And return air channel outlet air end is positioned at the end portion place of cylinder, its air intake is communicated with one end place being positioned at cylinder height end of container cavity.
Described heat donor passage and container cavity are all cylindrical, and heat donor passage to be sheathed in container cavity and both arranged concentric, and both are affixed radially by the stiffening web of radial arrangement to each other; Heat donor passage is furnished with multiple ventilation hole running through tube wall and arrange successively along its axis and/or circumferential direction, and described ventilation hole forms the hot blast air intake in container cavity.
Heat donor passage tail end sealing and its air intake tube wall place is provided with horn-like hot blast targeting port, described hot blast targeting port is communicated with heat donor passage and container cavity, and the high end that the blowing guide direction of hot blast targeting port points to cylinder is arranged.
Described container cavity is also provided with the broken mud rib for breaing up wet mud in its opening for feed place, broken mud rib profile is direct rod shape and postpones setting along container cavity cavity arranged direction; The inwall place of container cavity is also convexly equipped with the convex teeth portion for combing rake mud.
Described container cavity comprises the center container cavity being positioned at cylinder axis place and the collateral branch's container cavity arranged axisymmetricly around center container cavity axis, and described center container cavity and collateral branch's container cavity all possess corresponding heat donor passage to form sludge drying assembly independent of each other; Described cylinder opening for feed also comprises the central feeding mouth of corresponding sensing center container cavity feed end and the corresponding collateral branch's opening for feed pointing to collateral branch's container cavity feed end respectively, and described central feeding mouth and collateral branch's opening for feed are one and the outlet bore of collateral branch's opening for feed and the ratio of the outlet bore of central feeding mouth equal the ratio of collateral branch's container cavity number and center container cavity number.
Described heat donor passage is in the ladder tubulose reduced by its air intake to its sealed end bore or tapered tubular, and collateral branch's container cavity is six of centrally container cavity axisymmetrical layout.
Cylinder supplies charging by worm conveyor, and each discharge end of worm conveyor forms the corresponding opening for feed of cylinder; Container cavity feed end place is provided with the "eight" shape ring flat-plate being convenient to charging, and the small-caliber end of described "eight" shape ring flat-plate forms the inserted terminal of each discharge end of worm conveyor, and the heavy caliber end of "eight" shape ring flat-plate is communicated with and covers establishes container cavity feed end to arrange; Also be furnished with between the opening for feed of collateral branch's container cavity of arranged adjacent between two for guiding wet sludge stream to the gear mud directing plate of specifying container cavity place of collateral branch.
Described municipal sludge desiccation apparatus also comprises the body skin be sheathed on outside cylinder, described body skin profile cylindrically, described drum configuration be cylindric and with form concentric collapsible type between body skin and coordinate; Described body skin is insulation shell, and body skin is evenly equipped with multiple fixed cell for fixing itself and cylinder position relation along its circumference; Fixed cell is gim peg, and its radial direction runs through body skin and tight abutment back-up roller outer wall place, end is arranged.
Described fixed cell is used for being in against one end of cylinder and/or bolt being coated with thermofin; The fixed cell number arranged with circumferential wound drum is one group, and described fixed cell is many groups and the layout that postpones along drum length direction; Sheathed bolt rain cover on fixed cell.
Described municipal sludge desiccation apparatus also comprises the plural bracing frame axially arranged in turn along body skin, forms and be rotatably assorted between described body skin outer wall and bracing frame; Support frame as described above comprises the holder support roller and for helping the support roller of body skin for holding in the palm support body skin being positioned at and locating below body skin, and described support roller is two groups and arranges along body skin axis for axis symmetry; Support frame as described above is also provided with the directional wheel for directed cylinder and body skin sense of rotation.
Cylinder height end is covered with return air cover, and return air cover profile is barrel-shaped and its bung end affixed sealed enclosure height end is arranged, and the return air chamber connection container cavity that described return air cover is formed and return air channel are with the connection cavity of both formation; Its end head that covers on return air runs through the duct be provided with for wearing worm conveyor, sealing arrangement between worm conveyor and return air cover.
Body skin end portion place arranges main heating tube, and main heating tube one end is communicated with outside induced draft fan, and the other end is communicated with each heat donor passage respectively; Main heating tube outer wall place is socketed with main backwind tube, and the cavity formed between main backwind tube inwall with main heating tube outer wall forms the return air cavity being communicated with return air channel and outside flying dust used heat treatment facility; Between body skin end portion and main backwind tube outer wall, seal section is set and forms between the two and turn round matching relationship; Main backwind tube outer wall place arranged concentric gear part, described municipal sludge desiccation apparatus also comprises propulsion source, and described propulsion source and gear part engaged transmission form the driven unit driving and roll and rotate.
Major advantage of the present invention is as follows:
1) the various defects that traditional simple use direct heating assembly or indirect heating assembly cause, have been abandoned, rely on the layout of swing roller on the one hand, thus effectively solve the quick training baking problem of wet mud in container cavity, utilize self rotating of cylinder, wet mud is after entering container cavity, also namely produce servo-actuated and constantly overturn, effectively drying object to mix to reach with the hot gas transmitted in heat donor passage simultaneously; More importantly, after mud is wet in hot air seasoning, the Hazard Factor such as a large amount of dust contained in the flying dust used heat that it produces naturally can guide to outside corresponding flying dust used heat treatment facility with the special return air channel arranged, thus avoid the generation of the situations such as environmental pollution that traditional " flying dust used heat is discharged with dry mud simultaneously " cause and even personnel safety.In addition, the cylinder be in tilted layout, also effectively ensure that wet mud is entering container cavity and constantly after upset mummification, its final dry mud can be in good time under the effect of gravity and drum rotating power, be naturally delivered to the discharge port at cylinder end portion place, to reach automatic feed and spoil disposal object, it is simple for structure, and operation is reliable, the high and safety and stability of working efficiency.
2), the layout of return air channel, also be one of them emphasis of the present invention, also namely: return air channel is not merely the passage being communicated with container cavity and carrying flying dust used heat, simultaneously, the flying dust used heat in return air channel is utilized itself still to possess the feature of certain temperature, and be close to container cavity and arrange, in other words, the coated container cavity outer wall of the flying dust used heat now in return air channel or be attached to container cavity outer wall and flow; Its whole gas flow, discharge formation similar " U " shape through hot blast air feed to flying dust used heat to flow to, " U " shape flows in the region that encloses and is container cavity region, now heat insulation path is formed and dries for the first of " directly " of wet mud, and containing the flying dust used heat in the return air channel of portion temperature again in discharge process again through container cavity outer wall, and the realization of " indirectly " is to the second time oven dry flow process of wet mud in the inner; The nearly baking procedure of twice, thus the training oven dry also greatly reducing its reality under the prerequisite guaranteeing wet mud dries quantity changes into this, achieves many things at one stroke.
3), horn-like hot blast targeting port, it points to the guiding being intended to realize flying dust used heat in container cavity, this is being in tilted layout due to cylinder itself, and the discharging structure of himself is by ensureing its high endfeed and low side discharging, simultaneously hot blast is low side air intake and high-end air-out, therefore, directly may get rid of along its discharge port with dry mud in container cavity for avoiding training the flying dust used heat after drying, " air-lock " effect is realized on the one hand by hot blast targeting port, guarantee that flying dust used heat is unlikely to directly discharged by cylinder discharge port and cause accident, on the other hand, the air-flow that the hot blast that hot blast targeting port place blows out produces, guide and order about flying dust used heat to the end ascension of cylinder height, and the final return air channel air intake being positioned at one end place of cylinder height end along being communicated with container cavity is able to smooth discharge.Whole flow process is neatly efficient, thus gives security for the normal work of aforesaid return air channel.
4), the setting of broken mud rib, ensure that wet mud breaks up effect after entering cylinder, avoid wet mud agglomerating alluvial and cause effectively cannot overturn oven dry phenomenon after entering container cavity; The convex teeth portion of the inwall place setting of container cavity, guarantees that wet mud is when rolling along container cavity inwall especially, and continuous being stirred by convex teeth portion that can be in good time harrows pine, thinks that the actual mummification efficiency of cylinder makes Beneficial Effect.
5), container cavity of the present invention, actual arrangement is multiple, can be understood as and first arrange the heat donor passage that center container cavity is arranged around center container cavity, container cavity axle center, Zai Yi center is the center of circle, circumferential hoop is around being evenly equipped with multiple collateral branch's container cavities, collateral branch's container cavity also arranges heat donor passage accordingly simultaneously, and structure is dried in final formation cylinder training of the present invention.During actual use, corresponding different cylinder opening for feeds, by the conveying of exterior mechanical, the continual feed of center container cavity, therefore its charging bore is less, thus meets its uninterrupted low discharge feed effect; And there is rotation in collateral branch's container cavity and is interrupted feed phenomenon, therefore must by large charging bore to meet the feed object of its short period of time large discharge.The present invention is by above-mentioned project organization, avoid adopt that single large-scale container cavity causes or wet sewage sludge feed too much to produce cannot flash baking, or the defect of wet sewage sludge feed production efficiency deficiency less own, small-sized container cavity after one side is decentralized ensure that the flash baking demand of wet mud, and rely on multiple container cavities, then ensure that the wet mud handling capacity in the unit time, finally guarantee its actual production efficiency.
6), the practical structures of air feed path, this sentences its ladder tubulose or tapered tubular is main, thus guarantee that in it, hot blast still can form higher blast continuous along in the process of ventilation hole loss in air feed path, to ensure the hot blast feeding ability of air feed path end.The layout number of collateral branch's container cavity, can determine according to practical condition, just repeats no longer one by one herein.
7), the setting of "eight" shape ring flat-plate, namely form at the opening for feed place of worm conveyor structure of revealing all the details, to avoid wet mud when entering container cavity along worm conveyor, occurring that mud splashes or loose leaks phenomenon, finally playing the guiding gathering wet mud and part and to wet the effect of mud; And keep off mud directing plate, take into account because collateral branch's opening for feed is only one and be continuous discharging especially, to rotate in a circumferential direction along cylinder and constantly in the process of each collateral branch container cavity conveying at it, its directing plate characteristic can be relied between collateral branch's container cavity adjacent between two, thus when collateral branch's opening for feed is between two collateral branch's container cavities, still can guarantee that wet mud enters one of them container cavity place of collateral branch along its directing plate, to guarantee its wet mud supply effect.
8), cylindrical outer arranges body skin, also namely forms detachable cooperation between cylinder with body skin, solves traditional to be stirred and even wearing and tearing with the severe friction of container cavity wall after mummification because of mud, the problem and the cylinder occurred declines work-ing life; During actually operating, once produce above-mentioned situation, can directly carry out cylinder dismounting by artificial or mechanical system and again add new cylinder, thus continue the object playing reliable operation; Its mounting or dismounting efficiency is high, not only effectively ensure that the actual service life of complete machine, more can reduce its maintenance cost greatly, thus also just indirectly improve its actual working efficiency.
9), by the uniform effect along body skin axis and length direction of fixed cell, thus the omnibearing binding effect played cylinder in the inner, under the drive of driven unit, the generation spinning movement that cylinder can be definite all along, its reliable and stable work.The use of thermofin is then the diameter demand considering fixed cell itself; For ensureing fixed cell work rigidity during use, the bolt that size is thicker must be used, and its heat transfer area of the bolt of oversized dimensions is also just larger; By the existence of thermofin, the heat heated in cavity can be avoided greatly directly to be transmitted by bolt part and to diffuse to outside, thus ensure that centrality and the not fugacity of heat in heating cavity, think that the working efficiency guaranteeing complete machine lays the first stone.
10), the present invention relies on coordinating of the wheels on bracing frame and driven unit, drives the cylinder of oblique layout and even the rotation object of whole body skin to play; The setting of directional wheel, in good time guiding when ensure that drum rotating especially corrects, and finally guarantees reliability and stability during drum functions.
11), in fact, the high end of cylinder, be also the relatively high one end after drum-inclined, vice versa for its end portion.And by being arranged in the return air cover of height end, cylinder portion also namely and in affixed layout between body skin respective end, thus form the turning point, bottom of above-mentioned " U " shape runner, rely on the connection cavity that return air cover is formed, achieve hot blast by main heating tube, heat donor passage, ventilating pit, container cavity, and after changing flying dust used heat into wet sludge reaction, then by connection cavity, return air channel finally to the streamlined flow process of external exhaust gas treatment facility.The concentric socket join structure that main heating tube and main backwind tube are formed, ensure that the most simplification of sealed structure on it especially, the interlock of the gear part that main backwind tube outer wall place arranges and corresponding propulsion source, final formation driven unit, thus the driving function completed for cylinder, its structure function is clear, reliable and stable work and efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing of the I part also i.e. each parts in cylinder end portion place of Fig. 1;
Fig. 3 is the II part of Fig. 1 is also each parts partial enlarged drawing in cylinder height end;
Fig. 4 is the III part partial enlarged drawing of Fig. 1;
Fig. 5 is that the A-A of Fig. 1 is to sectional view;
Fig. 6 is that the B-B of Fig. 1 is to sectional view;
Fig. 7 is that the C-C of Fig. 1 is to sectional view;
Fig. 8 is that the D-D of Fig. 1 is to sectional view.
The implication marked in figure is as follows:
10-cylinder 11-container cavity 11a-breaks mud rib 11b-convex teeth portion 111-center container cavity 112-collateral branch container cavity 12-heat donor passage 12a-ventilation hole 12b-hot blast targeting port 13-return air channel 14-stiffening web 15-"eight" shape ring flat-plate 16-gear mud directing plate 20-worm conveyor 30-body skin 31-fixed cell 40-bracing frame 41-holder support roller 42-and helps roller 43-directional wheel 50-return air cover 60-main heating tube 70-main backwind tube 81-gear part 90-B head plate 100-C head plate 110-to store grey storehouse 120-chapelet
Embodiment
For ease of understanding, composition graphs 1-8 specifically sets forth assembly structure of the present invention and specific works flow process thereof herein:
The actual finished product of the present invention, can refer to shown in Fig. 1, generally include outer cylinder (being also body skin 30), outer cylinder 30 outer setting bracing frame 40, the support roller station assembly that bracing frame 40 place arrange accordingly is rolled, comprise and help roller 42 and holder support roller 41, support roller station assembly is arranged on bracing frame 14 column, bracing frame 14 also arranges directional wheel 43, to guarantee the actual rolling guiding of cylinder 10 simultaneously.Cylindrical shell one end eminence of outer cylinder arranges return air cover 50, return air cover 50 is connected with outer cylinder end housing, return air cover 50 internal cavity naturally form return air chamber (being also namely communicated with the connection cavity of return air channel and container cavity), arrange in return air cover 50 termination for mud machine, during concrete operations, can worm conveyor etc. be selected; Run through return air cover 50 body skin to be communicated with container cavity 11 for mud machine, and sealing member sealing is set in both junctions; The cylindrical shell lower end of outer cylinder is the discharge gate of whole mummification flow process, outer inner wall of rotary drum place arranges thermal insulation layer, thermal insulation layer internal cavity arranges interior cylinder (i.e. above-mentioned cylinder 10) again, outer cylinder outer wall subsection setup gim peg, and the end nut place of putting gim peg arranges rain cover; The gim peg of outer cylinder outer wall place subsection setup, after inside and outside cylinder group synthesis is as a whole, can be convenient to again disintegrate, thus makes interior cylinder after daily production wearing and tearing, can carry out dismounting rapidly and again change the outfit.
The container cavity 11 of interior drum cavity and heat donor passage 12 all along its axial length postpone appropriate length arrange, carry out fastening radial through stiffening web 14 between the two, container cavity 11 exact shape is in tubulose as Figure 1-4, and can arrange that B head plate 90 is to realize the sealing effectiveness of its each passage slit at the section section place as shown in Figure 6 at its high-end tube head place, in B head plate 90 outer distribution, "eight" shape ring flat-plate 15 is set, "eight" shape ring flat-plate 15 side corresponding each collateral branch container cavity and add gear mud directing plate 16 respectively, thus naturally form pug guiding entrance at each feed end place of container cavity 11, spiral type transfer roller 20 discharge port arranges support tube separately, comprise central feed tube and collateral branch's feed-pipe, support tube concrete structure as shown in Figure 3 separately, and corresponding insertion each container cavity 11 place is arranged.
The lower end of container cavity 11 forms its discharge end, also can arrange at C-C sectional plane place as shown in Figure 7 that C head plate 100 is closed to realize each gap.Arrange heat donor passage 12 with one heart in container cavity 11, be interconnected between the two with ventilation hole 12a, the end portion place of heat donor passage 12 also arranges hot blast targeting port 12b; Heat donor passage 12 is after attracting hot blast by induced draft fan, part hot blast directly diffuses in container cavity 11 by ventilation hole 12a, to carry out the reaction and drying with wet mud, and another part hot blast, then direct by hot blast targeting port 12b blow out to container cavity 11, thus guide object for flying dust used heat in container cavity 11 plays air-flow, guarantee that in it, flying dust used heat can naturally flow out along return air channel 13 instead of directly together be discharged with dry mud by its end portion discharge gate, with the tail gas separation function of lifting gear safety performance and automatization.In addition, flying dust used heat in return air channel 13 is in cavity process of circulation in it, incorporating mummification in pug by hot blast wets after mud, waste thermal energy, flying dust, moisture etc. all mix to incorporate and to be integrated and the damp and hot wind itself formed still possesses heat energy, therefore still by the outer wall thermal conduction of container cavity 11, and the mummification object for mud wet in container cavity 11 again can be played.
Described outer cylinder end portion place arranges main backwind tube 70, and main backwind tube 70 middle section adds gear ring gear or sprocket wheel with one heart and forms transmission component, and together forms with corresponding propulsion source the driven unit that head roll 10 rotates.
Hot blast source during actual use, the part of waste heat that the boiler such as fuel-burning power plant and heating can be utilized to discharge is introduced, the part of waste heat that boiler is discharged is introduced main heating tube 60 by induced draft fan by hot blast, mud training oven dryization is carried out via heat donor passage 12, ventilation hole 12a and finally entering in container cavity 11, the dry mud produced after its mummification is discharged along the end portion place discharge port of cylinder 10 automatically, flying dust used heat after its mummification then under the guiding of hot blast guiding port 12b, along connecting cavity, return air channel 13, main backwind tube 70 and finally flow to external tailpieces treatment facility.
External exhaust gas treatment facility, can arrange in as shown in Figure 1 store grey library structure, the flying dust used heat in main backwind tube 70 directly enters afterwards in eliminating and stores in grey storehouse, considers the practical structures of main backwind tube 70 and main heating tube 60, therefore arranges herein and fixedly store grey storehouse; Described main backwind tube 70 and main heating tube 60 and storing between grey storehouse 110 is rotating, and main backwind tube 70 with store exterior wall junction, grey storehouse 110 sealing member be set, discharge flying dust used heat and process by storing grey storehouse 110, dust fall into store bottom grey storehouse 110 arrange flying dust funnel and ash exhauster in, store the air outlet tube of top, grey storehouse 110 higher position setting then for drawing the waste gas in flying dust used heat, waste gas directly discharges to smokestack via tail gas deodorizing cleaning apparatus.
Real work flow process of the present invention during real work is as follows:
First in the container cavity 11 of cylinder 10, wet mud is pumped into via chapelet 120 by the worm conveyor 20 in Fig. 1; Along with the continuous rotation of cylinder 10, wet mud is by that be interrupted or continual input center container cavity 111 or collateral branch's container cavity 112, the induced draft fan being simultaneously arranged in cylinder 10 end portion place starts action, hot blast is circulated in heat donor passage 12 via main heating tube 60, part hot blast pours into container cavity 11 place along the ventilation hole 12a that heat donor passage 12 gathers, and another part then enters container cavity 11 place along hot blast targeting port 12b.
Cylinder 10 constantly rotates, and wet mud, after entering container cavity 10, is first broken up by broken mud rib 11a, then is carried out continuous combing by convex teeth portion 11b and break up, thus be convenient to wet mud fast and hot blast react; And hot blast is after reacting with wet sludge anhydration, the flying dust used heat produced enters return air channel 13 via connection chamber track overflow, flying dust used heat is indirectly again training wet mud in baking container cavity 11 in return air channel 13 process, enters to store in grey storehouse 110 afterwards carry out respective handling step along the main backwind tube 70 being arranged at cylinder 10 end portion place.Mud after mummification flows out along cylinder 10 end portion place discharge port equally, and exports specified location to through corresponding e Foerderanlage.
When cylinder 10 changed by needs, first dismantle or unscrew all fixed cells 31, its cylinder 10 being produced and loosens, more naturally take out; If individual defects appears in fixed cell 31 before, also corresponding fixed cell 31 can be changed at this moment; Again insert new cylinder 10 along body skin 30 tube chamber more afterwards, and one by one again push against relevant fixed cell 31.
Claims (12)
1. a municipal sludge desiccation apparatus, it is characterized in that: comprise the tilted-putted cylinder of axis (10) and the driven unit for driving this cylinder (10) to rotate along its axis, cylinder (10) inside has the container cavity (11) holding mud; Container cavity (11) is postponed along cylinder (10) axial direction due and is run through setting, and its feed end is in the high end of cylinder (10), and its discharge end is positioned at the end portion of cylinder (10); Municipal sludge desiccation apparatus also comprises the heat donor passage (12) for supplying container cavity (11) heat and collects and get rid of the return air channel (13) that wet mud dries rear flying dust used heat, and described heat donor passage (12) is communicated with container cavity (11) and arranges; Return air channel (13) air intake is communicated with container cavity (11), and outlet air end is communicated in outside flying dust used heat treatment facility;
Described return air channel (13) next-door neighbour's container cavity (11), and return air channel (13) outlet air end is positioned at the end portion place of cylinder (10), its air intake is communicated with one end place being positioned at cylinder (10) high end of container cavity (11).
2. municipal sludge desiccation apparatus according to claim 1, it is characterized in that: described heat donor passage (12) is all cylindrical with container cavity (11), heat donor passage (12) to be sheathed in container cavity (11) and both arranged concentric, and both are affixed radially by the stiffening web (14) of radial arrangement to each other; Heat donor passage (12) is furnished with multiple ventilation hole (12a) running through tube wall and arrange successively along its axis and/or circumferential direction, and described ventilation hole (12a) forms the hot blast air intake in container cavity (11).
3. municipal sludge desiccation apparatus according to claim 1, it is characterized in that: heat donor passage (12) tail end sealing and its air intake tube wall place is provided with horn-like hot blast targeting port (12b), described hot blast targeting port (12b) is communicated with heat donor passage (12) and container cavity (11), and the blowing guide direction of hot blast targeting port (12b) points to the high end layout of cylinder (10).
4. municipal sludge desiccation apparatus according to claim 1, it is characterized in that: described container cavity (11) is also provided with the broken mud rib (11a) for breaing up wet mud in its opening for feed place, broken mud rib (11a) profile is direct rod shape and postpones setting along container cavity (11) cavity arranged direction; The inwall place of described container cavity (11) is also convexly equipped with the convex teeth portion (11b) for combing rake mud.
5. municipal sludge desiccation apparatus according to claim 1, it is characterized in that: described container cavity (11) comprises the center container cavity (111) being positioned at cylinder (10) axle center place and the collateral branch's container cavity (112) arranged axisymmetricly around center container cavity (111) axis, described center container cavity (111) and collateral branch's container cavity (112) all possess corresponding heat donor passage (12) to form sludge drying assembly independent of each other; Described cylinder (10) opening for feed also comprises the central feeding mouth of corresponding sensing center container cavity (111) feed end and the corresponding collateral branch's opening for feed pointing to collateral branch's container cavity (112) feed end respectively, and described central feeding mouth and collateral branch's opening for feed are one and the outlet bore of collateral branch's opening for feed equals the ratio of collateral branch's container cavity (112) number and center container cavity (111) number with the ratio of the outlet bore of central feeding mouth.
6. municipal sludge desiccation apparatus according to claim 5, it is characterized in that: described heat donor passage (12) is in the ladder tubulose reduced by its air intake to its sealed end bore or tapered tubular, and collateral branch's container cavity (112) is six of centrally container cavity (111) axisymmetrical layout.
7. municipal sludge desiccation apparatus according to claim 5, it is characterized in that: cylinder (10) supplies charging by worm conveyor (20), each discharge end of worm conveyor (20) forms the corresponding opening for feed of cylinder (10); Container cavity (11) feed end place is provided with the "eight" shape ring flat-plate (15) being convenient to charging, the small-caliber end of described "eight" shape ring flat-plate (15) forms the inserted terminal of each discharge end of worm conveyor (20), and the heavy caliber end of "eight" shape ring flat-plate (15) is communicated with and covers establishes container cavity (11) feed end to arrange; Also be furnished with between the opening for feed of collateral branch's container cavity (112) of arranged adjacent between two for guiding wet sludge stream to the gear mud directing plate (16) of specifying container cavity (112) place of collateral branch.
8. municipal sludge desiccation apparatus according to claim 5, it is characterized in that: described municipal sludge desiccation apparatus also comprises and is sheathed on cylinder (10) body skin outward (30), described body skin (30) profile cylindrically, described cylinder (10) profile be cylindric and with form concentric collapsible type between body skin (30) and coordinate; Described body skin (30) is insulation shell, and body skin (30) is evenly equipped with multiple fixed cell (31) for fixing itself and cylinder (10) position relationship along its circumference; Fixed cell (31) is gim peg, and its radial direction runs through body skin (30) and tight abutment back-up roller (10) outer wall place, end is arranged.
9. municipal sludge desiccation apparatus according to claim 8, is characterized in that: described fixed cell (31) is coated with thermofin for being in against one end of cylinder (10) and/or bolt; Fixed cell (31) number arranged with circumferential wound drum (10) is one group, and described fixed cell (31) is for many groups and to postpone layout along cylinder (10) length direction; The upper sheathed bolt rain cover of fixed cell (31).
10. municipal sludge desiccation apparatus according to claim 8, it is characterized in that: described municipal sludge desiccation apparatus also comprises the plural bracing frame (40) axially arranged in turn along body skin (30), forms and be rotatably assorted between described body skin (30) outer wall and bracing frame (40); Support frame as described above (40) comprises holder support roller (41) and for helping the support roller (42) of body skin (30) for holding in the palm support body skin (30) being positioned at body skin (30) below place, and described support roller (42) is two groups and arranges along body skin (30) axis for axis symmetry; Support frame as described above (40) is also provided with the directional wheel (43) for directed cylinder (10) and body skin (30) sense of rotation.
11. municipal sludge desiccation apparatus according to claim 8, it is characterized in that: cylinder (10) high end is covered with return air cover (50), return air cover (50) profile is barrel-shaped and the high end of its bung end affixed sealed enclosure body (30) is arranged, and return air chamber connection container cavity (11) that described return air cover (50) is formed and return air channel (13) are to form both connection cavities; Return air cover (50) runs through the duct be provided with for wearing worm conveyor (20) in its end head, sealing arrangement between worm conveyor (20) and return air cover (50).
12. municipal sludge desiccation apparatus according to claim 8, it is characterized in that: body skin (30) end portion place arranges main heating tube (60), main heating tube (60) one end is communicated with outside induced draft fan, and the other end is communicated with each heat donor passage respectively; Main heating tube (60) outer wall place is socketed with main backwind tube (70), and the cavity formed between main backwind tube (70) inwall with main heating tube (60) outer wall forms the return air cavity being communicated with return air channel (13) and outside flying dust used heat treatment facility; Between body skin (30) end portion and main backwind tube (70) outer wall, seal section is set and forms between the two and turn round matching relationship; Main backwind tube (70) outer wall place arranged concentric gear part (81), described municipal sludge desiccation apparatus also comprises propulsion source, and described propulsion source and gear part (81) engaged transmission form the driven unit driving and roll and rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310376936.XA CN103435246B (en) | 2013-08-27 | 2013-08-27 | Municipal sludge drying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310376936.XA CN103435246B (en) | 2013-08-27 | 2013-08-27 | Municipal sludge drying device |
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| CN103435246A CN103435246A (en) | 2013-12-11 |
| CN103435246B true CN103435246B (en) | 2015-04-15 |
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| CN201310376936.XA Expired - Fee Related CN103435246B (en) | 2013-08-27 | 2013-08-27 | Municipal sludge drying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204611742U (en) * | 2014-09-11 | 2015-09-02 | 陆骏 | A kind of reciprocating waste gas pyrolysis oven |
| CN104761115B (en) * | 2015-03-13 | 2016-08-31 | 李登平 | Pod rotates drying equipment |
| CN105541072A (en) * | 2015-07-13 | 2016-05-04 | 青岛松灵电力环保设备有限公司 | Membrane sludge dryer |
| CN107050972A (en) * | 2017-03-30 | 2017-08-18 | 通山新知力环保设备机械厂（普通合伙） | A kind of belt type sludge filter press |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2536586Y (en) * | 2002-03-19 | 2003-02-19 | 李爱民 | Sludge low-temperature phase transformation driers |
| CN101508515B (en) * | 2009-03-19 | 2011-01-05 | 浙江华章科技有限公司 | Sewage sludge drying method and drying machine |
| CN203440224U (en) * | 2013-08-27 | 2014-02-19 | 李登平 | Urban sludge drying device |
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