CN204265622U - Sludge drying system - Google Patents

Abstract

The utility model belongs to sludge drying processing technology field, is specifically related to a kind of sludge drying system for high-level efficiency Large Copacity wet sludge anhydration.Native system comprises cylinder and driven unit, and cylinder is that freely-supported beam-like is supported on ground with support roller-way, and drum cavity place sets firmly pug storehouse, and pug storehouse is more than three and along cylinder axis around setting, the axis in each pug storehouse and cylinder axis spacing impartial; The tube chamber in pug storehouse forms and passes through for wet mud and heat the heating chamber of this wet mud, and pug storehouse outer wall and inner wall of rotary drum enclose region and form the hot air cavity that hot wind supply circulates to heat pug storehouse; Feed portion and hydrofuge portion are arranged in the high end in pug storehouse, and the end portion place in pug storehouse arranges dry mud discharge port and hot blast relief outlet.Native system sludge drying efficiency is high, and single treatment amount is large, reliable and stable work.

Description

Sludge drying system

Technical field

The utility model belongs to sludge drying processing technology field, is specifically related to a kind of sludge drying system for high-level efficiency Large Copacity wet sludge anhydration.

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, is specifically and heats mud in custom-designed equipment, 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, and usually using the thermal oil of steam, high-temperature flue gas or heating and even sun power as thermal source.And consider the subsequent disposal and the impact of use cost performance that add heat smoke, the type of heating of indirect drying uses comparatively common.Current indirect heating drying equipment, all comprises the rotating cylinder as heating cavity usually, with heater block at wall of container external heat, thus wet mud in container is heated and mummification.The defect that above-mentioned processing mode exists is: on the current technology, indirect heating manner usual primary treatment amount is often less.This is the capacity limitation due to the cylinder as single warehouse.If increase its treatment capacity, certainly will need to rely on increase drum length to realize.But current cylinder is all rely on the double bracket being positioned at its two ends to support to the simply supported beam realizing cylinder.Once wanting of ignoring the possible consequences ensures its once heating amount by increasing container length, then only can produce working stability sex chromosome mosaicism because of cylinder support problem, severe patient even can cause cylinder to produce middle part breakage phenomenon, and this is unallowed in actual production.In addition, the cylinder of single warehouse, its hot face is only this cylinder wall, and heating efficiency is also often lower.How to seek a kind of mud drying device rational in infrastructure, thus can be able to seek trim point before processing efficiency and job stability, and then make it under the prerequisite realizing self work stability and reliability, can possess again convenient and high efficiency sludge drying performance, be domestic and international compeled technical barrier to be solved nearly ten years.

Summary of the invention

The purpose of this utility model is to provide a kind of simple for structure and sludge drying system of practicality, and its sludge drying efficiency is high, and single treatment amount is large, reliable and stable work.

For achieving the above object, the utility model have employed following technical scheme:

Sludge drying system, comprise the cylinder possessing airtight cavity that axis is in tilted layout and the driven unit for driving this cylinder to rotate along its axis, described cylinder is that freely-supported beam-like is supported on ground with support roller-way, it is characterized in that: drum cavity place is installed with the pug storehouse of the tubulose of the two ends sealing of the above-mentioned cylinder axis of axis being parallel, pug storehouse is more than three and along cylinder axis around setting, the axis in each pug storehouse and cylinder axis spacing impartial; The tube chamber in pug storehouse forms and passes through for wet mud and heat the heating chamber of this wet mud, and pug storehouse outer wall and inner wall of rotary drum enclose region and form the hot air cavity that hot wind supply circulates to heat pug storehouse; The high end in pug storehouse be furnished with to feed in its each tube chamber feed portion and extract the hydrofuge portion of moisture in its tube chamber out, the extraction path in hydrofuge portion and the feed path in feed portion dodge layout in space each other, the end portion place in pug storehouse arranges dry mud discharge port and hot blast relief outlet, dry mud discharge port is communicated with the bottom face in each pug storehouse forming heating chamber, and hot blast relief outlet is arranged with being communicated with between hot air cavity.

Pug storehouse profile is polygon rib tubular structure, and uniform around layout along cylinder axis.

Described cylinder height end is coaxially arranged with it heating tube and dehumidification tube, and heating tube and dehumidification tube are socketed concentrically with respect to one another and heating tube internal diameter is greater than dehumidification tube internal diameter; Heating tube is communicated with outer fan, and dehumidification tube is communicated with outside dehumidifying equipment; Feed portion comprises feeder sleeve, feeder sleeve and cylinder axis coaxially arranged; The relative heating tube of cylinder, dehumidification tube and feeder sleeve do the revolution action along its axis.

Sludge drying system comprises the drainage hood that button is located at the bell mouth shape of height end, pug storehouse, affixed layout between the heavy caliber end edge of described drainage hood and each pug storehouse, and its small-caliber end forms dehumidification tube; Feeder sleeve is positioned at drainage hood and cover place inside its discharge end discharging path point drainage hood.

Sludge drying system comprises for plate tight in fixing each pug storehouse, vertical each pug storehouse, interior tight plate plate face axis direction; In tight plate be positioned at cylinder axis region place and its each plate is arranged with the profile gap slot identical with pug storehouse outer wall profile along place, pug storehouse forms clamping location fit between the above-mentioned gap slot of interior tight plate; Interior tight plate runs through plate body and is furnished with the ventilation hole being convenient to ventilate; In tight plate be multiple and uniform along pug storehouse axis direction.

Described support roller-way is two and along drum shaft to arranging in turn, forms and being rotatably assorted between described cylinder outer wall and support roller-way; Described support roller-way profile is loop overlapping shape and is sheathed on cylinder, under the inner ring surface of support roller-way along and cylinder outer wall under along between sandwiched helps roller, described support roller be at least two groups and under support roller-way inner ring surface along holder support cylinder layout; Described support roller-way is also provided with the directional wheel for directed drum rotating direction.

Driven unit is arranged in its lower position place close of cylinder outer wall; Cylinder outer wall place is around being installed with tooth-strip part, and gear unit driven unit being arranged drive-motor and coordinate with it, forms engaged transmission between the output terminal of gear unit and tooth-strip part.

Described cylinder comprise directly affixed with between pug storehouse in cylinder and and interior cylinder between form the outer cylinder that concentric collapsible type coordinates, inside and outside drum configuration is all in straight cylindrical structure; Each pug storehouse is all fixedly welded on interior drum cavity wall place; Described outer cylinder is insulation shell, and outer cylinder is evenly equipped with multiple fixed cell for fixing position between itself and interior cylinder along its circumference; Fixed cell is gim peg, and its radial direction runs through outer cylinder and end tight abutment supports the setting of interior cylinder outer wall place.

Described fixed cell is used for being in against one end of interior 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 pug Cang Neibichu is also convexly equipped with the convex teeth portion for combing rake mud; Sludge drying system also comprises discharging conveyor belts, and the feed end of described discharging conveyor belts is positioned on the blanking path of described dry mud discharge port.

Major advantage of the present utility model is as follows:

1), the architectural vulnerability that traditional single storehouse design causes is considered, what the utility model adopted many tubulose pug storehouses ties up built-in structure, form the multitubular bundles design effect possessing high buckle resistance, as " single chopsticks are easy to fracture, and many chopsticks are tied up rear difficulty and fractureed " this similar thought.On the basis of the above after shape cost structure, can according to throughput requirements in actual production, and the finished product length in suitable prolongation pug storehouse, the high buckle resistance of himself also can not cause the structural collapse breakage phenomenon in pug storehouse simultaneously.The setting in feed portion provides pug storehouse with wet sludge source.Hydrofuge portion ensure that the separation that moisture in tube chamber when drying is being trained in pug storehouse is got rid of, and produces secondary bond to avoid dewatered sludge in the inner.Dry mud discharge port is arranged in mud bin bottom, thus ensure that when cylinder rotates, and its wet mud, can be able to complete discharging effect under gravity bottom it until after mummification in heating of constantly rolling.Hot blast relief outlet, then ensure that hot blast is heating pug storehouse until when temperature is gradually low, discharge that can be in good time, to ensure that the circulation of the fresh hot blast of high temperature enters, finally to provide the foundation guarantee for its inner wet quick mummification of mud.

The utility model has abandoned traditional single warehouse cylinder heating mode, by with the high efficiency synchronous heating design of multi-chamber, the heating chamber heating mud is configured for the pug storehouse of more than three, the hot air cavity simultaneously circulated using the drum cavity space beyond desilt feed bin as hot gas, it, while realization possesses high strength structure characteristic, also has the mud heat treated effect of high-level efficiency and format high throughput.

2), pug storehouse when reality uses, be as the criterion with polygon rib tubular structure.Polygon rib tubular structure, ensure that the structural strength in pug storehouse self.Each seamed edge defines similar reinforcement rib structure voluntarily, thus to make in its structure shear resistant stronger, even if under the simply supported beam finally guaranteeing to be in large span further supports, the middle part in pug storehouse also can not be caused to wreck phenomenon.

3), cylinder when rotating, in fact heating tube, dehumidification tube and feeder sleeve are all rotatably assorted as being formed between cylinder end face between motionless.In other words, each end of cylinder in the combination section with above-mentioned parts, all possess some moving parts and motionless between points of engagement, to guarantee the external sealing property basis that both are movable being guaranteed cylinder self.

4), the layout of drainage hood, ensure that while dehumidifier ability in pug storehouse is provided on the one hand, ensure that the stopping property that its dehumidifier passage is external.On the other hand, lower yet forms both along inwall of drainage hood guides feeder sleeve discharge outlet to wet the drainage plate of mud, thus when guaranteeing to rotate in each pug storehouse, wet mud can along feeder sleeve, drainage hood flowing and until be passed in corresponding pug storehouse, to realize its fast and reliable feed demand.

5), owing to there is comparatively wide arc gap between each pug storehouse, pug storehouse outer wall can direct affixed inner wall of rotary drum, but its position to each other still needs corresponding component in addition affixed.Now, the layout of tight plate within native system, ensure that each pug storehouse position isotropism to each other and affixed stability.Even if under which ensure that each pug storehouse is in rotary state, position is to each other still reliably constant.Ventilation hole on interior tight plate, is that the smoothness being convenient to hot-air channel takes in, just repeats no more herein.

6), rely on coordinating of the wheels on bracing frame and driven unit, drive 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, the object of reliability and stability when the most finally helping roller jointly to serve back-up roller and guarantee drum functions.

7), cylinder is inside and outside cylinder is also inside and outside shell structure, and between interior cylinder and outer cylinder, form detachable cooperation, thus solve and traditional to be stirred and even wearing and tearing with the severe friction of drum cavity wall after mummification because of mud, the problem and the cylinder occurred declines work-ing life.During actually operating, once produce the wearing and tearing transition in pug storehouse and situation about need change, under the situation retaining outer cylinder, directly can carry out the dismounting of interior cylinder by artificial or mechanical system and again add new interior cylinder, thus continuing 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.

8), by fixed cell along outer drum shaft to and the uniform effect of length direction, thus play the omnibearing binding effect to cylinder in the inner.Under the drive of driven unit, the generation spinning movement that all along, cylinder can be definite, 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 interior cylinder tube chamber, think that the high workload efficiency of complete machine lays the first stone.

9), the layout of convex teeth portion, be conducive to dredging the dewatered sludge in pug storehouse, to avoid the attachment phenomenon for pug storehouse inwall after sludge drying, be also beneficial to simultaneously and combing is carried out to fresh wet mud so that more high-level efficiency by heat drying.Discharging conveyor belts is positioned at dry mud discharge outlet, thus realizes the discharging demand voluntarily of the machine, to promote its working efficiency further.

Accompanying drawing explanation

Fig. 1 is perspective view of the present utility model;

Fig. 2 is the structural upright schematic diagram after Fig. 1 removes inside and outside cylinder;

Fig. 3 is structure sectional view of the present utility model;

Fig. 4 is the A-A sectional view of Fig. 3;

Fig. 5 is the B-B sectional view of Fig. 3;

Fig. 6 is the I part partial enlarged drawing of Fig. 5.

In figure, the corresponding relation of each label and each toponym of the utility model is as follows:

A-hot air cavity b-heating chamber

The outer cylinder 13-fixed cell 14-bolt rain cover of cylinder 12-in 10-cylinder 11-

20-driven unit 30-support roller-way 31-helps roller 32-directional wheel

40-pug storehouse 41-convex teeth portion 51-heating tube 52-dehumidification tube 53-feeder sleeve

The dry mud discharge nozzle of 54-hot blast fairlead 55-

Tight plate 71-gap slot 72-ventilation hole in 60-drainage hood 70-

80-tooth-strip part 90-discharging conveyor belts

Embodiment

For ease of understanding, composition graphs 1-6 specifically sets forth assembly structure of the present utility model and specific works flow process thereof herein:

Specific works structure of the present utility model as shown in figures 1 to 6, comprises the inside and outside cylinder 11,12 be socketed each other and the hexagon rib tubulose pug storehouse 40 being fixed on interior cylinder 11 internal chamber wall place, and pug storehouse 40 can be six and axially uniform along cylinder 10.Pug storehouse 40 is connected and fixed to possess tight plate 70 in gap slot 71 each other, and pug storehouse 40 is then in addition affixed with welding between interior cylinder 11 internal chamber wall, thus guarantees between pug storehouse 40 and even the rotation consistence of pug storehouse 40 between interior cylinder 11.Pug storehouse 40 and inside and outside cylinder 11,12 are sealed structure, it is offered some pipelines to be communicated with peripheral equipment, mainly comprise: the drainage hood 60 affixed being with it positioned at high end, pug storehouse 40, the heavy caliber end of drainage hood 60 is communicated with corresponding pug storehouse 40, and small-caliber end forms the dehumidification tube 52 being communicated with outside dehumidifying equipment, feeder sleeve 53 is socketed with one heart, to realize the internal feeding function of outside wet mud, the inner side cover of the discharging path point drainage hood 60 of feeder sleeve 53 in dehumidification tube 52.Heating tube 51 is arranged with, to realize the internal air feed effect of outside hot blast outside drainage hood 60.Hot blast pumps into the gap location between drainage hood 60 and interior cylinder 11 via heating tube 51, then enters the hot air cavity a between interior cylinder 11 inner chamber and pug storehouse 40 outer wall thereupon, finally realizes its heating and bakes and banks up with earth effect.The end portion lowest part in pug storehouse arranges dry mud discharge nozzle 55 (also i.e. dry mud discharge port), realizes the discharging conveying effect of its dewatered sludge with discharging conveyor belts 90.Hot air cavity a is then directly communicated with the hot blast fairlead 54 (being also hot blast outlet) being positioned at its lower end, to guarantee that the Low Temperature Thermal wind energy after dispelling the heat derives along this pipeline enough at once, thinks that follow-up pumping into of fresh hot blast provides sufficient space.

The utility model real work flow process during real work is as follows:

First wet mud is pumped into by the feeder sleeve 53 in Fig. 1 to the pug storehouse of cylinder 10; Wet mud flows to drainage hood 60 along feeder sleeve 53, and along with the continuous rotation of cylinder 10, wet mud is by the heating chamber b in that be interrupted or continual introducing pug storehouse 40. and the outer fan being now arranged in the high end of cylinder 10 starts action, hot blast via heating tube 51 and between drainage hood 60 and interior cylinder 11 gap enter hot air cavity a, thus realize for each pug storehouse 40 outer wall in interior cylinder 11 training dry heats.

Cylinder 10 constantly rotates, wet mud after entering pug storehouse 40, by convex teeth portion 41 constantly combing break up, thus be convenient to wet mud fast and in it hot gas carry out dry reaction.And wet mud is after training is dried and carried out mummification reaction, the wet-hot steam produced is extracted out to carry out subsequent disposal via dehumidification tube 52, the mud of mummification is then continuous to sink under the rotary action of cylinder 10 and the combined action of gravity, until be rolled into the dry mud discharge outlet at cylinder 10 least significant end place, the now wet complete mummification of mud, wet mud after mummification is discharged along above-mentioned dry mud discharge port, and enters discharging conveyor belts 90 and export specified location to.

In needs are changed when cylinder 11 and pug storehouse 40, first dismantle or unscrew all fixed cells 13, making to produce between its inside and outside cylinder 11,12 to loosen, cylinder 11 in extracting out more afterwards; If individual defects appears in fixed cell 13 before, also corresponding fixed cell 13 can be changed at this moment; In extraction after cylinder 11, cylinder 11 in again new along outer cylinder 13 tube chamber insertion, and one by one again push against relevant fixed cell 13, its whole Renewal process can be completed, its replacing is very convenient, also greatly reduces maintenance and the use cost of product simultaneously, achieves many things at one stroke.

Claims (10)

1. sludge drying system, comprise the cylinder (10) possessing airtight cavity that axis is in tilted layout and the driven unit (20) for driving this cylinder (10) to rotate along its axis, described cylinder (10) is supported on ground with support roller-way (30) in freely-supported beam-like, it is characterized in that: cylinder (10) inner chamber place is installed with the pug storehouse (40) of the tubulose of the two ends sealing of the above-mentioned cylinder of axis being parallel (10) axis, pug storehouse (40) is more than three and along cylinder (10) axis around setting, the axis of each pug storehouse (40) and cylinder (10) axis spacing equalization, the tube chamber in pug storehouse (40) forms and passes through for wet mud and heat the heating chamber of this wet mud, and pug storehouse (40) outer wall and cylinder (10) inwall enclose region and form the hot air cavity that hot wind supply circulates to heat pug storehouse (40), the high end in pug storehouse (40) be furnished with to feed in its each tube chamber feed portion and extract the hydrofuge portion of moisture in its tube chamber out, the extraction path in hydrofuge portion and the feed path in feed portion dodge layout in space each other, the end portion place in pug storehouse (40) arranges dry mud discharge port and hot blast relief outlet, dry mud discharge port is communicated with the bottom face of each pug storehouse (40) forming heating chamber, and hot blast relief outlet is arranged with being communicated with between hot air cavity.

2. sludge drying system according to claim 1, is characterized in that: pug storehouse (40) profile is polygon rib tubular structure, and uniform around layout along cylinder (10) axis.

3. sludge drying system according to claim 1 and 2, it is characterized in that: described cylinder (10) high end is coaxially arranged with it heating tube (51) and dehumidification tube (52), and heating tube (51) and dehumidification tube (52) are socketed concentrically with respect to one another and heating tube (51) internal diameter is greater than dehumidification tube (52) internal diameter; Heating tube (51) is communicated with outer fan, and dehumidification tube (52) is communicated with outside dehumidifying equipment; Feed portion comprises feeder sleeve (53), and feeder sleeve (53) and cylinder (10) axis coaxle are arranged; Cylinder (10) relatively heating tube (51), dehumidification tube (52) and feeder sleeve (53) does the revolution action along its axis.

4. sludge drying system according to claim 3, it is characterized in that: sludge drying system comprises the drainage hood (60) that button is located at the bell mouth shape of pug storehouse (40) high end, affixed layout between the heavy caliber end edge of described drainage hood (60) and each pug storehouse (40), its small-caliber end forms dehumidification tube (52); Feeder sleeve (53) is positioned at drainage hood (60) and its cover place, discharge end discharging path point drainage hood (60) inner side.

5. sludge drying system according to claim 1 and 2, it is characterized in that: sludge drying system comprises the interior tight plate (70) for fixing each pug storehouse (40), vertical each pug storehouse (40) axis direction in interior tight plate (70) plate face; In tight plate (70) be positioned at cylinder (10) central core region place and its each plate is arranged with the profile gap slot (71) identical with pug storehouse (40) outer wall profile along place, pug storehouse (40) form clamping location fit between the above-mentioned gap slot (71) of interior tight plate; Interior tight plate (70) runs through plate body and is furnished with the ventilation hole (72) being convenient to ventilate; In tight plate (70) for multiple and uniform along pug storehouse (40) axis direction.

6. sludge drying system according to claim 1 and 2, it is characterized in that: described support roller-way (30) is two and axially arranges in turn along cylinder (10), forms and be rotatably assorted between described cylinder (10) outer wall and support roller-way (30); Described support roller-way (30) profile is loop overlapping shape and is sheathed on cylinder (10), under the inner ring surface of support roller-way (30) along and cylinder (10) outer wall under along between sandwiched helps roller (31), described support roller (31) be at least two groups and under support roller-way (30) inner ring surface along holder support cylinder (10) layout; Described support roller-way (30) is also provided with the directional wheel (32) for directed cylinder (10) sense of rotation.

7. sludge drying system according to claim 1 and 2, is characterized in that: driven unit (20) is arranged in its lower position place close of cylinder (10) outer wall; Cylinder (10) outer wall place is around being installed with tooth-strip part (80), and the gear unit that driven unit (20) arranges drive-motor and coordinates with it, forms engaged transmission between the output terminal of gear unit and tooth-strip part (80).

8. sludge drying system according to claim 1 and 2, it is characterized in that: described cylinder (10) comprise with interior cylinder (11) directly affixed between pug storehouse (40) and and interior cylinder (11) between form the outer cylinder (12) that concentric collapsible type coordinates, inside and outside cylinder (11,12) profile is all in straight cylindrical structure; Each pug storehouse (40) is all fixedly welded on interior cylinder (11) internal chamber wall place; Described outer cylinder (12) is insulation shell, and outer cylinder (12) is evenly equipped with multiple fixed cell (13) for fixing position between itself and interior cylinder (11) along its circumference; Fixed cell (13) is gim peg, and its radial direction runs through outer cylinder (12) and end tight abutment supports the setting of interior cylinder (11) outer wall place.

9. sludge drying system according to claim 8, is characterized in that: described fixed cell (13) is coated with thermofin for being in against one end of interior cylinder (11) and/or bolt; The fixed cell number arranged with circumferential wound drum (10) is one group, and described fixed cell (11) is for many groups and to postpone layout along cylinder (10) length direction; The upper sheathed bolt rain cover (14) of fixed cell (11).

10. sludge drying system according to claim 1 and 2, is characterized in that: described pug storehouse (40) inwall place is also convexly equipped with the convex teeth portion (41) for combing rake mud; Sludge drying system also comprises discharging conveyor belts (90), and the feed end of described discharging conveyor belts (90) is positioned on the blanking path of described dry mud discharge port.