CN104909535A - Eccentric-type sludge drying device - Google Patents
Eccentric-type sludge drying device Download PDFInfo
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- CN104909535A CN104909535A CN201510154991.3A CN201510154991A CN104909535A CN 104909535 A CN104909535 A CN 104909535A CN 201510154991 A CN201510154991 A CN 201510154991A CN 104909535 A CN104909535 A CN 104909535A
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Abstract
The invention discloses an eccentric-type sludge drying device, which comprises a transversely-arranged drying main cylinder, a rack for positioning the drying main cylinder and a rotor main shaft, wherein one end of the drying main cylinder is provided with a feeding end, and the other end is provided with a discharging end; the drying main cylinder can rotate in relative to the feeding end and the discharging end; the rotor main shaft is eccentrically arranged in the drying main cylinder; the rotor main shaft and the drying main cylinder have opposite rotation directions; the feeding end is provided with a feeding pipe extending in the drying main cylinder; the lower part of the discharging end is provided with a sludge discharging port; the rotor main shaft is provided with multiple stirring propelling rods which are arranged spirally along the rotor main shaft; the inner wall of the drying main cylinder is provided with a plurality of shovelling plates, and each shovelling plate is provided with an anti-hardening chain structure. According to the eccentric-type sludge drying device of the invention, drying treatment can be effectively carried out on a large amount of water-containing sludge, the drying process is continuous and stable, the drying efficiency is high, the overall drying uniform degree is high, the drying effects are good, and sludge can be effectively prevented from hardening.
Description
Technical field
The invention belongs to technical field of sludge treatment, particularly relate to a kind of centering type sludge drying device.
Background technology
Can produce a large amount of mud in the process of sewage disposal, be burn in stove to the treatment process of these mud usually, and the heat smoke of discharging after burning is about 300 to 400 degree.Because mud initial aqueous rate is about 75% to 85%, moisture more and cannot burn, therefore before sludge incineration, need first to carry out drying and other treatment to mud, after being processed, water ratio is greatly reduced, then can carry out burning operation.Current sludge drying process means, although can realize dehydration and drying to a certain degree, in mummification efficiency, mummification degree, mummification homogeneity etc., still have and are much short of part.
Summary of the invention
The present invention is to overcome deficiency of the prior art, provides a kind ofly effectively to carry out drying and other treatment to mud moisture in a large number, and drying process continous-stable, mummification efficiency are high, the centering type sludge drying device that overall mummification degree of uniformity is high, mummification is respond well.
To achieve these goals, the present invention is by the following technical solutions:
A kind of centering type sludge drying device, comprise the main cylinder of horizontal mummification, for locating frame and the rotor main shaft of the main cylinder of mummification, one end of the main cylinder of mummification arranges feed end, the other end arranges discharge end, the main cylinder of mummification can feed end relatively, discharge end rotates, the top of feed end is provided with wet flue gas outlet, discharge end top is provided with heat smoke import, described rotor main shaft is in arranged off-centre within the main cylinder of mummification, described frame is provided with the bearing support for locating rotor main shaft, described frame is provided with the spindle drive motor that rotor main shaft can be driven to rotate and the main cylinder drive-motor that the main cylinder of mummification can be driven to rotate, described rotor main shaft is contrary with the turning direction of the main cylinder of mummification, the feed-pipe stretched in the main cylinder of mummification is provided with in described feed end, the bottom of described discharge end is provided with mud discharge port, described rotor main shaft is provided with multiple stirring catch bar, described stirring catch bar arranges in the shape of a spiral along rotor main shaft, the inwall of the main cylinder of described mummification is provided with some flights, described flight is provided with anti-compaction link chain mechanism.
The mud of water ratio about 80%, after high pressure screw pump enters the main cylinder of mummification from feed-pipe, stirred by epitrochanterian stirring catch bar, smash, increase specific surface area, heat smoke is entered by the heat smoke import of feed end, contacts, merges with mud, and carries out heat to mud, by heat exchange, the water in mud is evaporated, be convenient to the Quick uniform mummification of mud.The main cylinder of mummification and rotor main shaft all rotatable, under the acting in conjunction of stirring catch bar and the main cylinder of mummification, broken mud becomes the mud fritter of band water, easily seethes with excitement, again because stirring the promotion of catch bar, move to the mud discharge port being positioned at discharge end equably with certain speed.After heat smoke heats mud, be mixed with a large amount of water vapour, bulk temperature decreases, and becomes wet flue gas, and wet flue gas can be discharged from wet flue gas outlet.Mud after mummification enters in incinerator and burns, and the mud that the heat smoke of generation can enter into again the main cylinder of mummification higher to water ratio carries out mummification, thus realizes above-mentioned circulation.The rotor main shaft that anti-compaction link chain mechanism coordinates arranged off-centre is set, relative to the main cylinder of mummification and the coaxially arranged situation of rotor main shaft, the desired size stirring catch bar can be accomplished less, the rigidity requirement stirring catch bar is lower, thus simplify the manufacturing process stirring catch bar, reduce cost.
As preferably, secondary desiccation apparatus is provided with below described mud discharge port, described secondary desiccation apparatus comprises a separation mummification cylinder that can rotate along own axes, and the circular cone shape that described separation mummification cylinder is big up and small down, the large mouth being separated mummification cylinder is communicated with mud discharge port.Mud is after the mummification of mummification main cylinder, water ratio greatly reduces, but still can containing a small amount of moisture, through the mud of a mummification, fall to enter and be separated mummification cylinder, being separated mummification cylinder is rotate, therefore to mud, there is centrifugal whipping effect, mud is due to centrifugal force, got rid of on separation mummification cylinder inwall, form thinner sludge blanket, mud is also because water content reduces simultaneously, and clashed into and become more in small, broken bits, in addition mud has just left the main cylinder of mummification, still temperature is higher, therefore, evaporated further by the water in the mud that further centrifugal drying is even, reach the effect of secondary mummification.
As preferably, cartridge heater is arranged with outside described separation mummification cylinder, described cartridge heater inner side-wall, upper lower bottom part form second heat between mummification cylinder outer side wall and do chamber with being separated, described second heat is done chamber and is provided with heat supply mouth, air outlet, the two ends of a wet flue gas pipe connect heat supply mouth, wet flue gas outlet respectively, described mud discharge port be provided with thermal protection airway between the large mouth being separated mummification cylinder.When mud is discharged from mud discharge port, mainly concentrate on a part of position of mud discharge port near the main cylinder of mummification, the rest part of mud discharge port does not have mud substantially, is equivalent to a small airway.Small airway and the external world can separate by thermal protection airway substantially.Mud also can produce a large amount of heat steams in secondary drying process, and these heat steams are upwards refluxed by thermal protection airway, and wet flue gas that is final and the main cylinder of mummification merges.In sum, mud in the insulation blocking due to thermal protection airway in mud discharge port to the process being separated mummification cylinder, not easily fast cooling, and wet flue gas runner can obtain unified.After wet flue gas is discharged from wet flue gas outlet, still there is very high temperature, be about 170 to 240 degree, why it directly can not be utilized again, be because in it moisture too many, humidity is higher, if itself and mud are merged, very poor to the evaporate to dryness effect of mud again.And be provided with after second heat does chamber, high temperature wet flue gas enters in it, by the heat transfer being separated mummification cylinder barrel, secondary evaporate to dryness is carried out to mud, mud whipping is spread out the function at inner tube wall by cooperation separation mummification cylinder again, heating evaporation excellent, the program takes full advantage of the heat of wet flue gas, but shields the counter productive that wet flue gas water content is large, and secondary mummification efficiency greatly promotes.High temperature wet flue gas with heat also can not waste in a large number, can be recycled fully.
As preferably, described cartridge heater inner side-wall is provided with a continuous print, spiral internal partition, second heat is done chamber and is separated into a continuous print parichnos by described internal partition, the originating port of described parichnos is communicated with heat supply mouth, the termination section of described parichnos is communicated with air outlet, and the maximum horizontal spacing between described internal partition and cartridge heater inner side-wall is less than 3cm.Wet flue gas is full of after second heat does chamber and can be discharged, and do in chamber at second heat, wet flue gas flowing law is poor, easily occurs how many wet flue gas that temperature is high does not conduct heat to mud, heat supply, and just directly discharged, the heat utilization efficiency of wet flue gas is lower.By the design of internal partition, allow wet flue gas can be orderly through a longer parichnos, the heat of wet flue gas just can be discharged from air outlet after making full use of, and heat utilization efficiency greatly improves.
As preferably, described separation mummification cylinder top side wall upwards, stretching out forms splicing edge, and a part for described splicing edge is in immediately below mud discharge port, and the angle between the described vertical section of splicing edge and horizontal plane is 30 to 45 to spend.Improve splicing stability and splicing area, avoid partial sludge not separate mummification cylinder sidewall simultaneously and just directly fall, improve overall mummification rate and job stability.
As preferably, the osculum of described separation mummification cylinder is provided with every stone net, described every stone net one end with to be separated mummification cylinder hinged, the other end be separated mummification cylinder and connected by snap close piece.Mud after secondary mummification is that separated mummification cylinder throws away downwards, outwards, every the stop that stone net can carry out to a certain degree to mud, makes it can not be got rid of too loose, allows the sludge bulking of local bonding after mummification broken simultaneously.Further, relatively large stone can be blocked every stone net, make it can not fall together with the mud after mummification, refinement, in the burn down step after avoiding, be mixed with ratchel.
As preferably, described anti-compaction link chain mechanism comprises horizontal chain and radial chain, horizontal chain is parallel with rotor main shaft direction, be respectively equipped with radial chain between the two ends of described horizontal chain and flight top, the length of described radial chain is less than the offset of rotor main shaft relative to the main cylinder of mummification.When the main cylinder of such mummification rotates, anti-compaction link chain mechanism is also along with flight operates together.When anti-compaction link chain mechanism is positioned at bottom the main cylinder inwall of mummification, be subject to action of gravity and drop on the side of flight, if when mud drops down onto bottom the main cylinder inwall of mummification, can iris action be played, prevent mud from directly dropping on flight and mummification main cylinder inwall intersection and depositing; When anti-compaction link chain mechanism turns to mummification main cylinder upper inside wall position along with flight, anti-compaction link chain mechanism falls due to action of gravity again, thus mud band is fallen, simultaneously heat smoke can with anti-compaction link chain mechanism generation heat exchange, preheating is carried out to chain, chain is comparatively large due to surface-area, can improve the contact with mud, thus improves the heating efficiency to mud further.
As preferably, auxiliary chain parallel with being provided with some and radial chain between flight in the middle part of described horizontal chain.
The invention has the beneficial effects as follows: utilize burning heat smoke to carry out mummification, reasonable utilization of energy; Stir catch bar in drying process evenly to smash mud, promote mud advance, drying process is even, and heat smoke contacts fully with mud, and mummification is effective, and drying process is continuous, efficiently; Have secondary desiccation apparatus, and make full use of the heat in wet flue gas, capacity usage ratio is high, mummification successful; Reduce the rigidity requirement stirring catch bar, manufacturing cost reduces; Anti-compaction link chain mechanism is set and improves sludge drying efficiency, prevent mud from piling up simultaneously and harden.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of secondary desiccation apparatus of the present invention;
Fig. 3 is the structural representation of anti-compaction link chain mechanism in the present invention;
Fig. 4 is the cross-sectional view of the main cylinder of mummification of the present invention.
In figure: frame 1, spindle drive motor 2, speed reduction unit 3, bearing support 4, wet flue gas outlet 5, stir catch bar 6, main cylinder drive-motor 601, gear ring 602, support roller 6a, the main cylinder 7 of mummification, protruding 701, feed end 7a, discharge end 7b, flight 7c, heat smoke import 8, mud discharge port 9, rotor main shaft 10, feed-pipe 11, thermal protection airway 12, be separated mummification cylinder 13, splicing edge 13a, parichnos 14, air outlet 15, every stone net 16, internal partition 17, cartridge heater 18, heat supply mouth 19, wet flue gas pipe 20, anti-compaction link chain mechanism 30, horizontal chain 301, radial chain 302, auxiliary chain 303.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
In embodiment as shown in Figure 1, for a device for sludge drying, comprise incinerator 31, secondary combustion chamber 30, the main cylinder 7 of mummification, frame 1 and rotor main shaft 10, the main cylinder of mummification is horizontally placed on frame, frame arranges bearing support 4, for locating rotor main shaft respectively at the two ends of the main cylinder of mummification.One end of the main cylinder of mummification arranges feed end 7a, and the other end arranges discharge end 7b, and the main cylinder of mummification can rotate relative to feed end, discharge end, and is positioned in frame by support roller 6a.The top of discharge end is provided with heat smoke import 8, and feed end top is provided with wet flue gas outlet 5, and incinerator air outlet 31b is communicated with secondary combustion chamber inlet mouth 30a, secondary combustion chamber air outlet 30b and heat smoke inlet communication.Frame is provided with spindle drive motor 2 and main cylinder drive-motor 601, frame also arranges speed reduction unit 3, spindle drive motor finally drives rotor main shaft to rotate by speed reduction unit, and the outer wall of the main cylinder of main shaft mummification is provided with gear ring 602, can rotate under main cylinder drive-motor drives.Rotor main shaft is within the main cylinder of mummification, and rotor main shaft is contrary with the turning direction of the main cylinder of mummification.Be provided with the feed-pipe 11 stretched in the main cylinder of mummification in feed end, the bottom of discharge end is provided with mud discharge port 9, and mud discharge port is communicated with incinerator opening for feed 31a, and is pumped in incinerator by mud by incinerator fresh feed pump 32.Rotor main shaft is provided with multiple stirring catch bar 6, stirs catch bar and arranges in the shape of a spiral along rotor main shaft.
As shown in Figure 2, be provided with secondary desiccation apparatus below mud discharge port, comprise a separation mummification cylinder 13 that can rotate along own axes, be separated the circular cone shape that mummification cylinder is big up and small down, the large mouth being separated mummification cylinder is communicated with mud discharge port.Be separated outside mummification cylinder and be arranged with cartridge heater 18, cartridge heater inner side-wall, upper lower bottom part form second heat between mummification cylinder outer side wall and do chamber with being separated, second heat is done chamber and is provided with heat supply mouth 19, air outlet 15, the two ends of a wet flue gas pipe 20 connect heat supply mouth, wet flue gas outlet respectively, mud discharge port be provided with thermal protection airway 12 between the large mouth being separated mummification cylinder.Cartridge heater inner side-wall is provided with a continuous print, spiral internal partition 17, second heat is done chamber and is separated into a continuous print parichnos 14 by internal partition, the originating port of parichnos is communicated with heat supply mouth, the termination section of parichnos is communicated with air outlet, and the maximum horizontal spacing between internal partition and cartridge heater inner side-wall is less than 3cm.Be separated mummification cylinder top side wall upwards, stretching out forms splicing edge 13a, a part for splicing edge is in immediately below mud discharge port, and the angle between the vertical section of splicing edge and horizontal plane is 30 to 45 to spend.The osculum being separated mummification cylinder is provided with every stone net 16, every stone net one end with to be separated mummification cylinder hinged, the other end be separated mummification cylinder and connected by snap close piece.
Shown in composition graphs 3, the inwall of the main cylinder of mummification is provided with some flight 7c, and flight is provided with anti-compaction link chain mechanism 30.Anti-compaction link chain mechanism comprises horizontal chain 301 and radial chain 302, auxiliary chain 303 parallel with being provided with some and radial chain between flight in the middle part of horizontal chain.Horizontal chain is parallel with rotor main shaft direction, and be respectively equipped with radial chain between the two ends of described horizontal chain and flight top, the length of radial chain is less than the offset of rotor main shaft relative to the main cylinder of mummification.
As shown in Figure 4, rotor main shaft is relative to the main cylinder arranged off-centre of mummification, and the main cylinder of mummification rotates along clockwise direction, and the turning direction of rotor main shaft is contrary with the main cylinder of mummification.When the main cylinder of mummification rotates, anti-compaction link chain mechanism is also along with flight operates together.When anti-compaction link chain mechanism turns to the tip position of the main tube inner chamber of mummification along with flight, anti-compaction link chain mechanism falls due to action of gravity, heat smoke can with chain generation heat exchange, preheating is carried out to chain, chain due to surface-area larger, the contact with mud can be improved, thus improve the heating efficiency to mud further; When the running of anti-compaction link chain mechanism is to the main tube inner chamber of mummification, be subject to action of gravity and drop on the side of flight, if when mud drops down onto bottom the main cylinder inwall of mummification, iris action can be played, prevent mud from directly dropping on flight and mummification main cylinder inwall intersection and depositing, and when anti-compaction link chain mechanism operates tube inner chamber top main to mummification again, mud just falls along with chain, play the effect preventing mud and the adhesion of mummification main cylinder inwall.
Dry heat smoke enters from heat smoke import, mud containing large water gaging enters from feed-pipe, rotor main shaft and the main cylinder of mummification rotate backward, and mud is tentatively blended under the effect of stirring catch bar, and pushes ahead gradually, in the process, dry heat smoke contacts with mud, carries out heat to mud, and the water evaporation in mud is mixed in heat smoke, form wet flue gas, and finally reach wet flue gas outlet.Mud advances, after arriving mud discharge port, discharge downwards, enter and be separated mummification cylinder, under the turn effect being separated mummification cylinder, be thrown on barrel, form comparatively uniform sludge blanket, simultaneously, wet flue gas enters second heat through wet flue gas pipe and does parichnos in chamber, carry out second-heating evaporate to dryness by being separated mummification cylinder barrel to mud, be separated the water evaporation in the mud in mummification cylinder, water vapour imports wet flue gas outlet through thermal protection airway.After the mummification of mud secondary, through falling every stone net, complete mummification.Mud to be pumped in incinerator by incinerator fresh feed pump and to burn by the mud after mummification, and finally entered in the main cylinder of mummification after the heat smoke produced after burning entered secondary combustion chamber, the mud higher to water ratio carries out mummification.
Claims (8)
1. a centering type sludge drying device, it is characterized in that, comprise the main cylinder of horizontal mummification (7), for locating frame (1) and the rotor main shaft (10) of the main cylinder of mummification (7), one end of the main cylinder of mummification (7) arranges feed end (7a), the other end arranges discharge end (7b), the main cylinder of mummification (7) can feed end (7a) relatively, discharge end (7b) rotates, the top of feed end (7a) is provided with wet flue gas outlet (5), discharge end (7b) top is provided with heat smoke import (8), described rotor main shaft (10) is positioned at arranged off-centre within the main cylinder of mummification (7), described frame (1) is provided with the bearing support (4) for locating rotor main shaft (10), described frame (1) is provided with the spindle drive motor (2) that rotor main shaft (10) can be driven to rotate and the main cylinder drive-motor (601) that the main cylinder of mummification (7) can be driven to rotate, described rotor main shaft (10) is contrary with the turning direction of the main cylinder of mummification (7), the feed-pipe (11) stretched in the main cylinder of mummification (7) is provided with in described feed end (7a), the bottom of described discharge end (7b) is provided with mud discharge port (9), described rotor main shaft (10) is provided with multiple stirring catch bar (6), described stirring catch bar (6) arranges in the shape of a spiral along rotor main shaft (10), the inwall of the main cylinder of described mummification is provided with some flights (7c), described flight (7c) is provided with anti-compaction link chain mechanism (30).
2. a kind of centering type sludge drying device according to claim 1, it is characterized in that, described mud discharge port (9) below is provided with secondary desiccation apparatus, described secondary desiccation apparatus comprises a separation mummification cylinder (13) that can rotate along own axes, the circular cone shape that described separation mummification cylinder (13) is big up and small down, the large mouth being separated mummification cylinder (13) is communicated with mud discharge port (9).
3. a kind of centering type sludge drying device according to claim 2, it is characterized in that, cartridge heater (18) is arranged with outside described separation mummification cylinder (13), described cartridge heater (18) inner side-wall, upper lower bottom part forms second heat between mummification cylinder (13) outer side wall and does chamber with being separated, described second heat is done chamber and is provided with heat supply mouth (19), air outlet (15), the two ends of a wet flue gas pipe (20) connect heat supply mouth (19) respectively, wet flue gas outlet (5), described mud discharge port (9) be provided with thermal protection airway (12) between the large mouth being separated mummification cylinder (13).
4. a kind of centering type sludge drying device according to claim 3, it is characterized in that, described cartridge heater (18) inner side-wall is provided with a continuous print, spiral internal partition (17), second heat is done chamber and is separated into a continuous print parichnos (14) by described internal partition (17), the originating port of described parichnos (14) is communicated with heat supply mouth (19), the termination section of described parichnos (14) is communicated with air outlet (15), and the maximum horizontal spacing between described internal partition (17) and cartridge heater (18) inner side-wall is less than 3cm.
5. a kind of centering type sludge drying device according to Claims 2 or 3 or 4, it is characterized in that, described separation mummification cylinder (13) top side wall upwards, stretching out forms splicing edge (13a), a part for described splicing edge (13a) is in immediately below mud discharge port (9), and the angle of described splicing edge (13a) vertically between section and horizontal plane is 30 to 45 degree.
6. a kind of centering type sludge drying device according to Claims 2 or 3 or 4, it is characterized in that, the osculum of described separation mummification cylinder (13) is provided with every stone net (16), described every stone net (16) one end with to be separated mummification cylinder (13) hinged, the other end be separated mummification cylinder (13) and connected by snap close piece.
7. a kind of centering type sludge drying device according to claim 1 or 2 or 3 or 4, it is characterized in that, described anti-compaction link chain mechanism (30) comprises horizontal chain (301) and radial chain (302), horizontal chain (301) is parallel with rotor main shaft direction, be respectively equipped with radial chain (302) between the two ends of described horizontal chain (301) and flight (7c) top, the length of described radial chain (302) is less than the offset of rotor main shaft relative to the main cylinder of mummification.
8. a kind of centering type sludge drying device according to claim 7, is characterized in that, the auxiliary chain (303) that described horizontal chain (301) middle part is parallel with being provided with some and radial chain (302) between flight (7c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154991.3A CN104909535A (en) | 2015-04-03 | 2015-04-03 | Eccentric-type sludge drying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154991.3A CN104909535A (en) | 2015-04-03 | 2015-04-03 | Eccentric-type sludge drying device |
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| CN104909535A true CN104909535A (en) | 2015-09-16 |
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| CN201510154991.3A Pending CN104909535A (en) | 2015-04-03 | 2015-04-03 | Eccentric-type sludge drying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979608A (en) * | 2021-11-03 | 2022-01-28 | 长江勘测规划设计研究有限责任公司 | Municipal sludge drying treatment equipment and drying treatment method |
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| JP5646167B2 (en) * | 2009-12-28 | 2014-12-24 | 研機株式会社 | Drying equipment |
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| CN101870548A (en) * | 2009-04-27 | 2010-10-27 | 上海环保工程成套有限公司 | Sludge stirring and granulating rotary drying device |
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Address after: 323000 Zhejiang Province Cloud Road Lishui Shuige Industrial Zone No. 94 Applicant after: ZHEJIANG SANLIAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 323000 Zhejiang Province Cloud Road Lishui Shuige Industrial Park No. 94 Applicant before: Zhejiang Sanlian Environmental Protection Machinery Equipment Co., Ltd. |
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