CN100494844C - Rotating heat conducting sludge drying mechanism - Google Patents

Rotating heat conducting sludge drying mechanism Download PDF

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Publication number
CN100494844C
CN100494844C CNB2007100223635A CN200710022363A CN100494844C CN 100494844 C CN100494844 C CN 100494844C CN B2007100223635 A CNB2007100223635 A CN B2007100223635A CN 200710022363 A CN200710022363 A CN 200710022363A CN 100494844 C CN100494844 C CN 100494844C
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CN
China
Prior art keywords
outer tube
thermal medium
transmission shaft
deflector
heat conducting
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB2007100223635A
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Chinese (zh)
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CN101082465A (en
Inventor
葛仕福
郭宏伟
鲁维加
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Southeast University
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Southeast University
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Priority to CNB2007100223635A priority Critical patent/CN100494844C/en
Publication of CN101082465A publication Critical patent/CN101082465A/en
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Publication of CN100494844C publication Critical patent/CN100494844C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Drying Of Solid Materials (AREA)
  • Treatment Of Sludge (AREA)

Abstract

This invention discloses a sort of dryness set which heat the mud in the method of eddy, consists of the crust, the transmission shaft, it is fitted the feed inlet and the vent above the crust, it is fitted the discharge gate below the crust, the transmission shaft is fitted in the bowel of the crust, it is fitted the slurry fin in the transmission shaft. The transmission shaft consists of the inner canal, the outer canal, the outer canal is outside the inner canal, it is fitted the heat medium discharge line of the slurry fin between the inner canal and the outer canal. For making the best of the axial region of the bigger shaft diameter this invention makes the transmission shaft to be designed two concentric tube, it decreases the heat medium flow area of the wall connected with the mud, and is increases the rate of flow of the heat medium in the axes, and it increases the heat-transfer coefficient between the heat medium and the mud.

Description

Rotating heat conducting sludge drying mechanism
Technical field
The present invention relates to a kind of indirect heating type drying device, relate in particular to a kind of rotating heat conducting sludge drying mechanism that is used to handle mud.
Background technology
The indirect heating type drying sludge is compared with direct gas flow formula drying sludge, has dry run safety, peculiar smell and is easy to advantages such as processing, thermal efficiency height, auxiliary equipment are few.At present, the indirect heating type drying sludge adopts the wedge shape paddle-dryer mostly, claim the hollow blade drying machine again, but the indirect heating type drying machine maximizes and to have following technical problem: 1, heat medium in blade, power transmission shaft, in the blade and in the shell flow velocity very low, heat transfer coefficient is not high.2, in order to make hot and cold medium separately, need usually power transmission shaft is cut open, the centre adds a dividing plate, and rigidity, the intensity of power transmission shaft reduce greatly.3, owing to the blade form complexity, blade pitch is bigger, and it is very big that the single device heat transfer area can not be done, so single device sludge-drying amount is little.
Summary of the invention
The invention provides a kind of heat transfer coefficient height, the fast rotating heat conducting sludge drying mechanism of rate of drying.
The present invention adopts following technical scheme:
A kind of rotating heat conducting sludge drying mechanism, comprise shell, power transmission shaft, be provided with charge door and exhaust outlet on the top of shell, bottom at shell is provided with discharge gate, power transmission shaft is located at the inside of shell, on power transmission shaft, be provided with the paddle sheet, power transmission shaft comprises interior pipe, outer tube, one end of outer tube is the thermal medium import, the other end is thermal medium outlet, and the outside of pipe in outer tube sleeve is located at is provided with second plug between the outer tube in outer tube thermal medium exit and interior pipe, between interior pipe and outer tube, be provided with the thermal medium discharge pipe of paddle sheet, and on outer tube, be provided with through hole and be connected with the paddle sheet.
Compared with prior art, the present invention has the following advantages:
1, heat transfer coefficient height, the rate of drying between thermal medium of the present invention and mud is fast.Existing heat-conducting type drying machine Hollow Transmission Shafts diameter is bigger, the flowing velocity of thermal medium in axle is slower, the present invention is in order to make full use of the axle surface in larger axis footpath, power transmission shaft is designed to two concentric tube structures, reduced thermal medium actual internal area with the contacted wall of mud place, improve the flowing velocity of thermal medium in axle, increased the heat transfer coefficient between thermal medium and mud.
Simultaneously, owing to be provided with partition panel and deflector in the paddle sheet of the present invention, be provided with first deflector pressing close to cavity top place, and leave the gap between first deflector and the outer tube, be provided with second deflector pressing close to the outer tube place, leave the gap between second deflector and the collar, and first deflector and second deflector are spaced, the paddle sheet of this structure, organize the flow trace of thermal medium in the paddle sheet effectively, avoided the dead band, reduced aisle spare, make the flow velocity of thermal medium in paddle increase, improved the heat-transfer effect between thermal medium and mud.
2, intensity height of the present invention.Because the present invention adopts two concentric transmission shaft structures, need not to cut open power transmission shaft and add dividing plate, rigidity, the intensity of power transmission shaft have been improved greatly, simultaneously, the paddle plate shape is simple, and blade pitch is little, compact conformation, the single device heat transfer area can be done greatly, therefore can improve the dry disposal ability of single device.
3, external jacket heat-transfer effect of the present invention is good.The present invention is provided with external jacket in the outside of rotating heat conducting sludge drying mechanism, also be provided with deflector in the external jacket, improved the flow velocity of thermal medium in chuck, strengthened the heat-transfer effect of chuck, deflector well is connected shell with the drying machine inwall simultaneously, has improved the withstand voltage properties of chuck.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the cutaway view of power transmission shaft among the present invention.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is the structural representation of external jacket and housing.
Fig. 5 is the vertical view of external jacket.
Have among the above figure: 1, shell 2, discharge gate 4, external jacket 41, top board 42, deflector 44, thermal medium outlet 45, thermal medium import 5, power transmission shaft 51, interior pipe 52, thermal medium discharge pipe 54, through hole 55, outer tube 58, first plug 57, second plug 61, thermal medium import swivel joint 62, thermal medium outlet swivel joint 7, paddle sheet 71, partition panel 72, collar 74, side plate 75, cavity 8, charge door 9, guide plate 10, scrape tablet 11, exhaust outlet 12, blower fan 14, spray column 17, combustion furnace
The specific embodiment
A kind of rotating heat conducting sludge drying mechanism, comprise shell 1, power transmission shaft 5, be provided with charge door 8 and exhaust outlet 11 on the top of shell 1, be provided with discharge gate 2 in the bottom of shell 1, power transmission shaft 5 is located at the inside of shell 1, on power transmission shaft 5, be provided with paddle sheet 7, pipe 51 in power transmission shaft 5 comprises, outer tube 55, one end of outer tube 55 is the thermal medium import, the other end is the thermal medium outlet, the outside of pipe 51 in outer tube 55 is set in, between the outer tube 55 in outer tube 55 thermal medium exits and interior pipe 51, be provided with second plug 57, between interior pipe 51 and outer tube 55, be provided with the thermal medium discharge pipe 52 of paddle sheet 7, and being provided with through hole 54 on outer tube 55 is connected with paddle sheet 7, end in close outer tube 55 thermal medium imports one side of interior pipe 51 is provided with first plug 58, paddle sheet 7 comprises cavity 75, between outer tube 55 and cavity 75, be provided with partition panel 71, and partition panel 71 is between the thermal medium discharge pipe 52 and through hole 54 of corresponding paddle sheet, on cavity 75, be provided with first deflector, leave the gap between first deflector and the outer tube 55, on outer tube 55, be provided with second deflector, leave the gap between the top of second deflector and cavity 75, first deflector and second deflector are spaced.Wherein, cavity 75 can be realized in the following manner: cavity 75 comprises two side plates 74, is provided with collar 72 in side plate 74 upper ends, and is provided with guide plate 9 at collar 72, side plate 74 and 55 of outer tubes.
In the present embodiment, on the wall of shell 1, be provided with and scrape tablet 10, be provided with external jacket 4 in the outside of shell 1, external jacket 4 comprises jacket body, on jacket body, be provided with top board 41, on jacket body, be provided with thermal medium import 45 and thermal medium outlet 44, in jacket body, be provided with deflector 42.
In the present embodiment, the present invention includes blower fan 12, spray column 14, combustion furnace 17, steam vent 11 is connected with the import of blower fan 12, the outlet of blower fan 12 is connected with the import of spray column 14, the outlet of spray column 14 is connected with the import of combustion furnace 17, the course of work of the present invention is as follows: heat medium (hot water, water vapour or high temperature heat conductive oil) send in power transmission shaft and the chuck, drying machine inwall and several hollow blades of being welded on the power transmission shaft are heated, deliver to wet mud in the drying machine by charger, directly contact with the drying machine inwall of heating and several hollow blade outer walls that are welded on the power transmission shaft, mud obtains heating and is dried, being bonded on the hollow blade outer wall mud draws together down by drawing together tablet, and under the rotation of blade, move forward by the guide plate that is welded in the hollow blade outer end, last dewatered sludge is discharged by discharging opening, the water vapour and the incoagulable gas that evaporate (comprise gas with foreign flavor, pernicious gas) send into the spray column cool-down dehumidification by blower fan after, remaining incoagulable gas is sent into incinerator or combustion furnace burning, discharges behind pyrolytic.

Claims (6)

1, a kind of rotating heat conducting sludge drying mechanism, comprise shell (1), power transmission shaft (5), be provided with charge door (8) and exhaust outlet (11) on the top of shell (1), be provided with discharge gate (2) in the bottom of shell (1), power transmission shaft (5) is located at the inside of shell (1), on power transmission shaft (5), be provided with paddle sheet (7), power transmission shaft (5) comprises interior pipe (51), outer tube (55), one end of outer tube (55) is the first thermal medium import, the other end is the outlet of first thermal medium, outer tube (55) is set in the outside of interior pipe (51), between the outer tube (55) in outer tube (55) thermal medium exit and interior pipe (51), be provided with second plug (57), between interior pipe (51) and outer tube (55), be provided with the thermal medium discharge pipe (52) of paddle sheet (7), and being provided with through hole (54) on outer tube (55) is connected with paddle sheet (7), it is characterized in that described paddle sheet (7) comprises cavity (75), between outer tube (55) and cavity (75), be provided with partition panel (71), and partition panel (71) is positioned between the thermal medium discharge pipe (52) and through hole (54) of corresponding paddle sheet, on cavity (75), be provided with first deflector, first deflector and outer tube leave the gap between (55), on outer tube (55), be provided with second deflector, leave the gap between the top of second deflector and cavity (75).
2, rotating heat conducting sludge drying mechanism according to claim 1 is characterized in that being provided with first plug (58) in the end of close outer tube (55) thermal medium import one side of interior pipe (51).
3, rotating heat conducting sludge drying mechanism according to claim 1 is characterized in that described first deflector and second deflector are spaced.
4,, it is characterized in that being provided with external jacket (4) in the outside of shell (1) according to claim 1 or 2 or 3 described rotating heat conducting sludge drying mechanisms.
5, rotating heat conducting sludge drying mechanism according to claim 4, it is characterized in that external jacket (4) comprises jacket body, on jacket body, be provided with top board (41), on jacket body, be provided with the second thermal medium import (45) and second thermal medium outlet (44), in jacket body, be provided with the 3rd deflector (42).
6, rotating heat conducting sludge drying mechanism according to claim 5, it is characterized in that this rotating heat conducting sludge drying mechanism comprises blower fan (12), spray column (14), combustion furnace (17), exhaust outlet (11) is connected with the import of blower fan (12), the outlet of blower fan (12) is connected with the import of spray column (14), and the outlet of spray column (14) is connected with the import of combustion furnace (17).
CNB2007100223635A 2007-05-15 2007-05-15 Rotating heat conducting sludge drying mechanism Expired - Fee Related CN100494844C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2007100223635A CN100494844C (en) 2007-05-15 2007-05-15 Rotating heat conducting sludge drying mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007100223635A CN100494844C (en) 2007-05-15 2007-05-15 Rotating heat conducting sludge drying mechanism

Publications (2)

Publication Number Publication Date
CN101082465A CN101082465A (en) 2007-12-05
CN100494844C true CN100494844C (en) 2009-06-03

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104567297A (en) * 2013-10-12 2015-04-29 无锡日月合金材料有限公司 Quick drying device for silver-copper alloy sheets
CN103557680B (en) * 2013-11-07 2015-04-01 济南明鑫制药股份有限公司 Vacuum rotary drying machine with double drying effects
CN103755120B (en) * 2014-01-02 2015-07-08 东南大学 Airflow harrow type sludge dryer
CN104773778B (en) * 2015-04-02 2016-07-06 东南大学 Horizontal rotary blade vaporizer
CN104803576B (en) * 2015-04-02 2016-08-31 东南大学 Steam type rotating heat conducting sludge drying mechanism
CN106630540A (en) * 2017-01-20 2017-05-10 广东新环环保产业集团有限公司 Efficient energy-saving sludge drying system
CN109912170A (en) * 2019-04-24 2019-06-21 杭州更蓝生物科技有限公司 A kind of device for dehydrating sladge waste reducing energy consumption

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Granted publication date: 20090603

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CF01 Termination of patent right due to non-payment of annual fee