CN107200457A - A kind of sludge vacuum drying machine - Google Patents

A kind of sludge vacuum drying machine Download PDF

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Publication number
CN107200457A
CN107200457A CN201710501093.XA CN201710501093A CN107200457A CN 107200457 A CN107200457 A CN 107200457A CN 201710501093 A CN201710501093 A CN 201710501093A CN 107200457 A CN107200457 A CN 107200457A
Authority
CN
China
Prior art keywords
sludge
mixing drum
drying machine
agitator
agitating shaft
Prior art date
Application number
CN201710501093.XA
Other languages
Chinese (zh)
Inventor
曹俊
杨敏
Original Assignee
苏州克莱尔环保科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 苏州克莱尔环保科技有限公司 filed Critical 苏州克莱尔环保科技有限公司
Priority to CN201710501093.XA priority Critical patent/CN107200457A/en
Publication of CN107200457A publication Critical patent/CN107200457A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening

Abstract

This case discloses a kind of sludge vacuum drying machine, including charge pump, drying cabin, motor, condenser and vavuum pump, wherein, it is provided with inside drying cabin inside mixing drum, mixing drum and is provided with agitating shaft, multiple agitators is interval with agitating shaft.This case uses full-closed structure, and drying process is ordorless excessive, and device simple structure, and manufacturing cost is low;Using water-ring vacuum pump, device structure is simplified, floor space is reduced, energy consumption is reduced;By setting heat insulation layer in drying cabin, thermal losses of the steam on nacelle surface is effectively reduced, effective utilization rate of thermal energy is improved;Corrosion resistant layer is set by mixing drum inwall, corrosion of the sludge containing odor pollutant to equipment has effectively been resisted, has extended the service life of equipment.

Description

A kind of sludge vacuum drying machine
Technical field
The present invention relates to sludge drying mechanism, more particularly to a kind of drum-type vacuum drying sludge of built-in agitating function Machine.
Background technology
In recent years, the Chinese government attaches great importance to waste water control, increases the fund input to waste water control and administers power Degree, the quantity of sewage treatment plant starts to increase sharply, and scale is also constantly expanding.As national environmental protection plan is constantly true It is fixed and implement, and national environmental protection target realization year by year, China is in terms of municipal sewage treatment and Industrial Wastewater Treatment Have and rapidly break through and develop.
However, wastewater treatment is more perfect, thing followed sludge quantity is also more, the secure and cheap processing disposal of sludge Problem also becomes increasingly conspicuous, a great problem as puzzled enterprise.For this it is a series of the problem of, it is necessary to develop for drying sludge The plant equipment of decrement.Existing sludge drier mainly leads to hot blast to realize functions/drying, this method energy using normal temperature Consumption is very big, and because the pollution in sludge and odor pollutant are more, have foul smell excessive when drying, cause secondary to surrounding environment Pollution.
The content of the invention
For the shortcomings of the prior art, it is an object of the invention to provide a kind of simple structure, good airproof performance, Energy consumption it is low for sludge vacuum drying machine that the sludge containing odor pollutant is dried.
To achieve these goals, the present invention uses following technical scheme:
A kind of sludge vacuum drying machine, including:
Charge pump, it is used to convey undried sludge;
Drying cabin, is internally provided with mixing drum, is provided between the drying cabin and the mixing drum and allows steam free flow The second cavity provided with accommodating sludge inside the first dynamic cavity, the mixing drum;It is provided with the mixing drum internal axis It is arranged at intervals with to be provided with inside multiple agitators, the agitating shaft and agitator on agitating shaft, the agitating shaft and allows steam The 3rd cavity flowed freely, the two ends of the agitating shaft are extended respectively to outside drying cabin, and wherein one end is steam inlet end, The other end is steam (vapor) outlet end;Vacuum pumping opening is provided with the top of the mixing drum, bottom is provided with feed opening, and the vacuum is taken out Gas port is extended at the top of the drying cabin, and the feed opening extends to the drying cabin bottom;The drying cabin is provided with steam Air inlet and steam gas outlet, steam inlet and the steam gas outlet are connected with first cavity;The mixing drum is set There is charge door, the charge door is extended to outside the drying cabin, and pass through pipeline communication with the charge pump;
Motor, its output end is connected with the agitating shaft by gear;
Condenser, it includes bleeding point, water inlet and delivery port, and the water inlet passes through pipeline with the vacuum pumping opening Connection;
Vavuum pump, it passes through pipeline communication with the bleeding point.
Preferably, multiple risers are arranged at intervals with described sludge vacuum drying machine, the mixing drum inwall.
Preferably, described sludge vacuum drying machine, the riser is provided with several apertures, the hole of the aperture Footpath is 20~50mm.
Preferably, described sludge vacuum drying machine, the inwall of the drying cabin is provided with heat insulation layer.
Preferably, described sludge vacuum drying machine, the inwall of the mixing drum is provided with corrosion resistant layer.
Preferably, described sludge vacuum drying machine, a diameter of 1.4~1.6m of the mixing drum.
Preferably, described sludge vacuum drying machine, a diameter of 20~24cm of the agitating shaft.
Preferably, described sludge vacuum drying machine, the agitator includes long agitator and short agitator, wherein, The length of the long agitator is 20~30cm, and the length of the short agitator is the 1/2 of the long agitator, and the length is stirred Mix the wing and short agitator is arranged in sequence alternately on the agitating shaft.
Preferably, described sludge vacuum drying machine, the length of the riser is 10~20cm.
Preferably, described sludge vacuum drying machine, the vavuum pump is water-ring vacuum pump.
The beneficial effects of the invention are as follows:1) this case uses full-closed structure, and drying process is ordorless excessive, and device is constructed Simply, manufacturing cost is low;2) water-ring vacuum pump is used, device structure is simplified, floor space is reduced, energy consumption is reduced; 3) by setting heat insulation layer in drying cabin, thermal losses of the steam on nacelle surface is effectively reduced, heat energy is improved and effectively utilizes Rate;4) corrosion resistant layer is set by mixing drum inwall, has effectively resisted corrosion of the sludge containing odor pollutant to equipment, extended and set Standby service life.
Brief description of the drawings
Fig. 1 is the structural representation of sludge vacuum drying machine of the present invention.
Fig. 2 is the diagrammatic cross-section of mixing drum in sludge vacuum drying machine of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text Word can be implemented according to this.
As depicted in figs. 1 and 2, as the sludge vacuum drying machine of an embodiment, including:
Charge pump 1, it is sludge transfer member, for conveying undried sludge to drying cabin 2;
Drying cabin 2, is internally provided with mixing drum 3, is provided between drying cabin 2 and mixing drum 3 and allows what steam was flowed freely First cavity 4, the effect of the first cavity 4 is that mixing drum 3 is heated by introducing the water vapour of heat, is set inside mixing drum 3 There is the second cavity 5 of accommodating sludge;Agitating shaft 6 is provided with the internal axis of mixing drum 3, is arranged at intervals with the agitating shaft 6 many The 3rd cavity 8 for allowing that steam is flowed freely is provided with inside individual agitator 7, agitating shaft 6 and agitator 7, by the He of agitating shaft 6 The purpose that agitator 7 is set to hollow structure is so that the water vapour of heat while can pass through agitating shaft 6 and agitator 7 and tide Wet sludge is in contact, and the drying efficiency to sludge is improved with this;The two ends of agitating shaft 6 are extended respectively to outside drying cabin, its Middle one end is steam inlet end 9, and the other end is steam (vapor) outlet end 10;The top of mixing drum 3 is provided with vacuum pumping opening 11, and bottom is set Feed opening 12 is equipped with, vacuum pumping opening 11 is extended at the top of drying cabin, and feed opening 12 extends to drying cabin bottom, dry vacuumizing When dry, feed opening 12 is closed;Drying cabin 2 is provided with steam inlet 13 and steam gas outlet 14, steam inlet 13 and steam gas outlet 14 connected with the first cavity 4;Do not connect each other between first cavity 4, the second cavity 5 and the 3rd cavity 8 It is logical;Mixing drum 3 is provided with charge door 15, and the charge door 15 is extended to outside drying cabin 2, and passes through pipeline communication with charge pump 1;
Motor 16, its output end is connected with agitating shaft 6 by gear, for driving agitating shaft 6 to rotate.
Condenser 17, it includes bleeding point 18, water inlet 19 and delivery port 20, and water inlet 19 passes through with vacuum pumping opening 11 Pipeline communication;The methods for cooling of condenser 17 is unrestricted, can be cooled down or ethanol-dry ice coolant using recirculated water cooling, air, The temperature of the water steamed by decompression is not high, its to the cold air can natural cooling, therefore, the requirement to condenser coolant is not It is special high.
Vavuum pump 21, its with bleeding point 18 by pipeline communication, for providing whole system negative pressure.
As another embodiment of this case, wherein, multiple risers 22 are arranged at intervals with the inwall of mixing drum 3.Riser 22 The stirring dynamics to sludge can be improved, to the stirring frequency of sludge in the increase unit interval, so as to be done beneficial to improving to sludge Dry speed.
As another embodiment of this case, wherein, riser 22 is provided with several apertures, and the aperture of aperture is preferably 20~ 50mm.The purpose for setting aperture is the contact area for increasing sludge bulking and negative pressure, while falling increase from aperture by sludge The stirring frequency of sludge so that moisture is more easy to quickly be pumped.The aperture of aperture should be limited, if less than 20mm, aperture hole Footpath is too small, it is impossible to produce a desired effect, and can increase the manufacturing cost of equipment on the contrary, and economy is not strong;If more than 50mm, easily making Largely passed through into sludge from aperture so that riser 22 is unable to reach the effect for being sufficiently stirred for sludge, and to finally give Sludge moisture content higher 5~7%.
As the another embodiment of this case, wherein, the inwall of drying cabin 2 is provided with heat insulation layer.Heat insulation layer is effectively reduced The heat loss of steam in one cavity 4, so as to improve the thermal efficiency of steam, has saved a large amount of heat energy, beneficial to energy-conserving and environment-protective.
As the another embodiment of this case, wherein, the inwall of mixing drum 3 is provided with corrosion resistant layer.It is a variety of due to containing in sludge The odorant of heterogeneity, corrosion of these odorants to equipment is very big, when equipment is in this hot humid for a long time And full of in the environment of corrosive gas, the service life of equipment is substantially reduced, and corrosion resistant layer is provided with the inwall of mixing drum 3, Corrosion of the odorant to equipment can be effectively reduced, so as to the service life of effective extension device.
As the another embodiment of this case, wherein, the diameter of mixing drum 3 is preferably 1.4~1.6m.The diameter of mixing drum 3 should It is restricted, the diameter of mixing drum 3 decides the real driving cycle of vacuum, if the diameter of mixing drum 3 is less than normal, causes a collection of The secondary sludge quantity that can be dried is less than normal, is unfavorable for energy-conservation, and can increase drying cost;If the diameter of mixing drum 3 is bigger than normal, again Cause the practical vacuum degree in mixing drum 3 not enough, so as to need to improve temperature to realize functions/drying, thus add energy consumption again And drying cost.
As the another embodiment of this case, wherein, the diameter of agitating shaft 6 is preferably 20~24cm.The diameter of agitating shaft 6 should be by Limitation, the diameter of agitating shaft 6 will influence dry energy consumption size, drying efficiency and drying cost, if the diameter of agitating shaft 6 It is less than normal, then cause the contact surface of agitating shaft 6 and sludge less than normal, so as to have impact on rate of heat transfer, thus reduce drying efficiency;If The diameter of agitating shaft 6 is bigger than normal, then causes the volume of the second cavity 5 to diminish, and the sludge quantity of single drying is thus reduced, so as to make Into the waste of heat energy, it is unfavorable for the dry energy consumption of control and drying cost.
As the another embodiment of this case, wherein, agitator 7 includes long agitator 23 and short agitator 24, wherein, long stirring The length of the wing 23 is 20~30cm, and the length of short agitator 24 is the 1/2 of long agitator 23, and long agitator 23 and short agitator 24 are arranged in sequence alternately on agitating shaft 6.The length of long agitator 23 and short agitator 24 refers to its length diametrically, no It is axial length.The length of long agitator 23 and short agitator 24 should be limited, and is found through experiments that, when the length of long agitator 23 Spend for 20~30cm, when the length of short agitator 24 is the 1/2 of long agitator 23, result in optimal drying effect, this It is due to that under the length, the distance between agitator and riser can make sludge obtain preferably mixing rolling just, and And result in the contact surface maximum with vacuum.In addition, using setting that long agitator 23 and short agitator 24 are alternately arranged successively The upset and drying of meter also advantageously in sludge in mixing drum 3, the especially early stage in drying process, the sludge bulking of large volume When more, it is unlikely to cause the extruding between sludge bulking too serious, so as to protect the corrosion resistant layer of the inwall of mixing drum 3 from damaging Wound.
As the another embodiment of this case, wherein, the length of riser 22 is preferably 10~20cm.The length of riser 22 should Limited, if its length is less than normal, the function of causing it not possess lifting sludge influences its mixing function to sludge;If its Length is bigger than normal, can collide, not collided immediately with agitator 7 again, can also extrude positioned at riser 22 and agitator 7 it Between space, so as to have impact on the Blending Efficiency of Blending of sludge in the space.
As the another embodiment of this case, wherein, vavuum pump is preferred to use water-ring vacuum pump.The letter of water-ring vacuum pump structure Single, performance is stable, and floor space is small, vacuumizes efficiency high, water consumption is low, consumes energy low, noise is small.Also, importantly, i.e. Just occur the unexpected situations such as power-off, the water of suck-back also very little only can be flowed into partly in condenser 17, without being done to sludge It is dry to impact.
The sludge vacuum drying machine rate of drying that is obtained using this case technical scheme is fast, the thermal efficiency is high, material is evenly distributed, Ordorless excessive, energy consumption is low, and drying cost is small, and drying temperature is only 40~50 DEG C, by the drying sludge of 1 ton of 85% moisture to containing Water rate 30%, it is only necessary to 0.93 ton of steam.Dried moisture percentage in sewage sludge is 10~30%, and mud decrement rate is up to 70~80%. Also, flue gas meets discharge standard, dried material particle diameter is between 1~5mm, and drying process is escaped without dust, dried material Subsequent treatment is convenient.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited In specific details and shown here as the legend with description.

Claims (10)

1. a kind of sludge vacuum drying machine, including:
Charge pump, it is used to convey undried sludge;
Drying cabin, is internally provided with mixing drum, is provided between the drying cabin and the mixing drum and allows what steam was flowed freely The second cavity provided with accommodating sludge inside first cavity, the mixing drum;Stirring is provided with the mixing drum internal axis It is arranged at intervals with inside multiple agitators, the agitating shaft and agitator to be provided with axle, the agitating shaft and allows that steam is free 3rd cavity of flowing, the two ends of the agitating shaft are extended respectively to outside drying cabin, and wherein one end is steam inlet end, another End is steam (vapor) outlet end;Vacuum pumping opening is provided with the top of the mixing drum, bottom is provided with feed opening, the vacuum pumping opening Extend at the top of the drying cabin, the feed opening extends to the drying cabin bottom;The drying cabin is provided with steam inlet Mouth and steam gas outlet, steam inlet and the steam gas outlet is connected with first cavity;The mixing drum, which is provided with, to be added Material mouth, the charge door is extended to outside the drying cabin, and passes through pipeline communication with the charge pump;
Motor, its output end is connected with the agitating shaft by gear;
Condenser, it includes bleeding point, water inlet and delivery port, and the water inlet is connected with the vacuum pumping opening by pipeline It is logical;
Vavuum pump, it passes through pipeline communication with the bleeding point.
2. sludge vacuum drying machine as claimed in claim 1, it is characterised in that be arranged at intervals with the mixing drum inwall many Individual riser.
3. sludge vacuum drying machine as claimed in claim 2, it is characterised in that the riser is provided with several apertures, The aperture of the aperture is 20~50mm.
4. sludge vacuum drying machine as claimed in claim 1, it is characterised in that the inwall of the drying cabin is provided with thermal insulation Layer.
5. sludge vacuum drying machine as claimed in claim 1, it is characterised in that the inwall of the mixing drum is provided with corrosion resistant Layer.
6. sludge vacuum drying machine as claimed in claim 1, it is characterised in that a diameter of 1.4~1.6m of the mixing drum.
7. sludge vacuum drying machine as claimed in claim 6, it is characterised in that a diameter of 20~24cm of the agitating shaft.
8. sludge vacuum drying machine as claimed in claim 7, it is characterised in that the agitator includes long agitator and short stirred The wing is mixed, wherein, the length of the long agitator is 20~30cm, and the length of the short agitator is the 1/2 of the long agitator, And the long agitator and short agitator are arranged in sequence alternately on the agitating shaft.
9. sludge vacuum drying machine as claimed in claim 8, it is characterised in that the length of the riser is 10~20cm.
10. sludge vacuum drying machine as claimed in claim 1, it is characterised in that the vavuum pump is water-ring vacuum pump.
CN201710501093.XA 2017-06-27 2017-06-27 A kind of sludge vacuum drying machine CN107200457A (en)

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Application Number Priority Date Filing Date Title
CN201710501093.XA CN107200457A (en) 2017-06-27 2017-06-27 A kind of sludge vacuum drying machine

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Application Number Priority Date Filing Date Title
CN201710501093.XA CN107200457A (en) 2017-06-27 2017-06-27 A kind of sludge vacuum drying machine

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CN107200457A true CN107200457A (en) 2017-09-26

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200968766Y (en) * 2006-10-30 2007-10-31 四川雷鸣生物环保工程有限公司 High-temperature circulating flue gas agitating drying machines
CN201237423Y (en) * 2008-07-04 2009-05-13 范炳喜 Dual-shaft sealing type hollow blade drying machine
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
CN103673576A (en) * 2012-09-18 2014-03-26 江苏荣达利机械有限公司 Material stirring device of horizontal drying machine
CN104279844A (en) * 2013-07-05 2015-01-14 天津市洁源净水材料有限公司 Novel rotation roller dryer
CN105276939A (en) * 2015-11-11 2016-01-27 上海复洁环保科技股份有限公司 Stirring type low temperature vacuum dewatering desiccation equipment and process thereof
CN205014756U (en) * 2015-09-07 2016-02-03 安徽纽曼精细化工有限公司 Rake type vacuum dryer
CN206037683U (en) * 2016-07-28 2017-03-22 曲靖市麒麟区泽鸿机械有限公司 Lifting blade for horizontal drying machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200968766Y (en) * 2006-10-30 2007-10-31 四川雷鸣生物环保工程有限公司 High-temperature circulating flue gas agitating drying machines
CN201237423Y (en) * 2008-07-04 2009-05-13 范炳喜 Dual-shaft sealing type hollow blade drying machine
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
CN103673576A (en) * 2012-09-18 2014-03-26 江苏荣达利机械有限公司 Material stirring device of horizontal drying machine
CN104279844A (en) * 2013-07-05 2015-01-14 天津市洁源净水材料有限公司 Novel rotation roller dryer
CN205014756U (en) * 2015-09-07 2016-02-03 安徽纽曼精细化工有限公司 Rake type vacuum dryer
CN105276939A (en) * 2015-11-11 2016-01-27 上海复洁环保科技股份有限公司 Stirring type low temperature vacuum dewatering desiccation equipment and process thereof
CN206037683U (en) * 2016-07-28 2017-03-22 曲靖市麒麟区泽鸿机械有限公司 Lifting blade for horizontal drying machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陈家庆: "《环保设备原理与设计》", 30 September 2005, 中国石化出版社 *

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