CN107522379A - A kind of sludge drying method of sludge drying machine system - Google Patents
A kind of sludge drying method of sludge drying machine system Download PDFInfo
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- CN107522379A CN107522379A CN201710863104.9A CN201710863104A CN107522379A CN 107522379 A CN107522379 A CN 107522379A CN 201710863104 A CN201710863104 A CN 201710863104A CN 107522379 A CN107522379 A CN 107522379A
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- China
- Prior art keywords
- sludge
- drying
- drying method
- gas
- sludge drying
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
Abstract
The present invention relates to technical field of sludge treatment, discloses a kind of sludge drying method, and it comprises the following steps：S1：By sludge by sludge extruder into strips, and be uniformly distributed on conveyer belt, the speed of the conveyer belt is controlled by reductor；S2：During sludge transports on the conveyor belt, blower fan discharges drying gas drying sludge upwards, while dries gas absorption moisture and be changed into humid air；S3：Discharged transporting in step s 2 to the sludge of the conveying end of tape from discharging opening；S4：The humid air is dehumidified by condenser, the moisture of condensation is expelled to outside sludge drying machine system, by obtained drying gas circulation into condenser.Compared with prior art, sludge drying method of the invention has advantages below：1 than traditional sludge drying method energy-conservation more than 40%.For 2 processes without any pollutant emission, drying gas reusable edible is pollution-free.3 this method are without potential safety hazards such as blasts.
Description
Technical field
The present invention relates to technical field of sludge treatment, more particularly to a kind of sludge drying side of sludge drying machine system
Method.
Background technology
With the expansion of sewage disposal scale and the raising of standard, sludge yield is continuously increased.Sludge is a kind of aqueous
The high solid organic castoff of rate, even the sludge by pretreatments such as concentration, centrifugations, its moisture content are also left 80%
It is right.Contain the poisonous and harmful substances such as fuel gas and hardly degraded organic substance such as heavy metal, pathogen, methane, and body in sludge
Product is huge, and processing is more difficult.
The content of the invention
It is an object of the invention to provide a kind of sludge drying method of efficient energy-saving.
In order to solve the above problems, the present invention provides a kind of sludge drying method, comprises the following steps：
S1：By sludge by sludge extruder into strips, and be uniformly distributed on conveyer belt, the speed of the conveyer belt
Controlled by reductor；
S2：During sludge transports on the conveyor belt, blower fan discharges drying gas drying sludge upwards, dries simultaneously
Gas absorbs moisture and is changed into humid air；The conveyer belt is made up of some conveying belt units set from top to bottom, and sludge exists
Fallen to when transport is to upper strata conveying belt unit end on conveying belt of lower floor unit；
S3：Discharged transporting in step s 2 to the sludge of the conveying end of tape from discharging opening；
S4：The drying gas for absorbing moisture is dehumidified, the moisture after condensation is expelled to sludge drying machine system
Outside, drying gas circulation is used to heat again into condenser.
Preferably, in step s 2, the blower fan dries gas from the bottom up discharge of bottom conveyer belt.This
Sample, moisture in the drying gas of the sludge in lower floor's transmission belt is blowed to during drying sludge is less than and blow to upper layer transport band
On sludge drying gas, as sludge often falls into lower floor's transmission belt, blow drying gas in moisture it is fewer, this
Sample has more preferable drying effect on the premise of the temperature and humidity of drying gas is constant.
Preferably, the conveyer belt is by reductor, controller and from top to bottom 3-5 transmission tape cell group
Into the reductor electrically connects with the controller, and the conveying belt unit total length is 40-64m.
Preferably, the transmission tape cell includes base, motor, driving wheel, driven pulley and conveyor chain, described
Driving wheel and the driven pulley are respectively arranged on the base both ends, and the conveyor chain is sheathed on the driving wheel and described driven
On wheel, the driving wheel shares two, and the motor is located between described two driving wheels, and drives the driving wheel coaxially to turn
It is dynamic, the motor and the deceleration mechatronics.
Preferably, the transmission tape cell shifts to install in the direction of advance of the conveyor chain.
Preferably, the conveyer belt is made up of 4 conveying belt units, and 4 conveying belt unit total lengths are
40-64m.Present inventor has found by test of many times, when conveying belt unit quantity is by as above designing, obtains drying effect
Fruit is best.
Preferably, the temperature of the drying gas is 35-45 DEG C, and the humidity of the drying gas is 15-
25R.H..The temperature of more preferably described drying gas is 40 DEG C, and the humidity of the drying gas is 20R.H..The drying gas
Flow velocity≤2m/s, it is described drying gas oxygen content≤12%.Present inventor has found by test of many times, when drying gas
When the nature parameters of body are by as above designing, it is best to obtain drying effect.
Preferably, the temperature of the humid air is 28-32 DEG C, and the humidity of the humid air is 98-
99.5R.H..The temperature of more preferably described humid air is 30 DEG C, and the humidity of the humid air is 99R.H..
The present invention provides a kind of sludge drying method, and sludge first is extruded into noodles formula type by sludge extruder, uniformly
On the conveyor belt, when every layer of sludge is to lower floor, sludge is rolled, and ensure that sludge is uniformly dried for distribution.Then control is passed through
Reductor speed processed, to control conveyer belt transporting velocity.The water content of sludge through this method drying is 10%-15%, can be expired
Sufficient needs of production.
Brief description of the drawings
Fig. 1 is the structural representation of the transmission tape cell in the embodiment of the present invention.
Wherein, 1, base；2nd, motor；3rd, driving wheel；4th, driven pulley；5th, conveyor chain；6th, sewage collecting tank；7th, draining
Mouthful.
Embodiment
With reference to embodiment, the embodiment of the present invention is described in further detail.Following examples are used for
Illustrate the present invention, but be not limited to the scope of the present invention.
Embodiment 1
A kind of sludge drying method of sludge drying machine, comprises the following steps：
S1：By sludge by sludge extruder into strips, and be uniformly distributed on conveyer belt, the speed of the conveyer belt
Controlled by reductor；
S2：The conveyer belt is made up of 4 conveying belt units, and every transmission belt element length is 10-16m, and sludge is being transported
Rolling is fallen on conveying belt of lower floor unit when transporting to upper strata conveying belt unit end.In the process that sludge transports on the conveyor belt
In, gas will be dried and discharged by blower fan from the bottom up flow velocity with 2m/s of bottom conveying belt unit with dewatered sludge, it is described
The temperature for drying gas is 40 DEG C, humidity 20R.H., oxygen content 12%；Drying gas is changed into temperature by drying process and is
30 DEG C, the humid air that humidity is 99R.H.；
S3：The step S2 sludge transported to the conveying bottom tape cell end is discharged from discharging opening, the sludge of discharge
Water content be 10%-15%；
S4：The humid air is dehumidified, the moisture after condensation is collected in condensate drain pan, machine is discharged through drainpipe
Outside, will drying gas come back in wind side condenser be used for be heated to temperature be 40 DEG C, humidity 20R.H., again through blower fan
Blow to bottom conveying belt unit.
Embodiment 2
A kind of sludge drying method of sludge drying machine, comprises the following steps：
S1：By sludge by sludge extruder into strips, and be uniformly distributed on conveyer belt, the speed of the conveyer belt
Controlled by reductor；
S2：The conveyer belt is made up of 3 conveying belt units, and every transmission belt element length is 13.3-21.3m, dirty
Mud rolling when transport is to upper strata conveying belt unit end is fallen on conveying belt of lower floor unit.Transported on the conveyor belt in sludge
During, gas will be dried and discharged by blower fan from the bottom up flow velocity with 2m/s of bottom conveying belt unit with desiccation dirt
Mud, the temperature for drying gas is 45 DEG C, humidity 25R.H., oxygen content 12%；Gas is dried by drying process to become
For the humid air that temperature is 32 DEG C, humidity is 99.5R.H.；
S3：The sludge transported in step s 2 to the conveying bottom tape cell end is discharged from discharging opening, discharge
The water content of sludge is 10%-15%；
S4：The humid air is dehumidified, the moisture after condensation is collected in condensate drain pan, machine is discharged through drainpipe
Outside, will drying gas come back in wind side condenser be used for be heated to temperature be 40 DEG C, humidity 20R.H., again through blower fan
Blow to bottom conveying belt unit.
Embodiment 3
A kind of sludge drying method of sludge drying machine, comprises the following steps：
S1：By sludge by sludge extruder into strips, and be uniformly distributed on conveyer belt, the speed of the conveyer belt
Controlled by reductor；
S2：The conveyer belt is made up of 5 conveying belt units, and every transmission belt element length is 8-12.8m, and sludge exists
Transport to rolling during the conveying belt unit end of upper strata is fallen on conveying belt of lower floor unit.In the mistake that sludge transports on the conveyor belt
Cheng Zhong, gas will be dried and discharged by blower fan from the bottom up flow velocity with 2m/s of bottom conveying belt unit with dewatered sludge, institute
The temperature for stating drying gas is 35 DEG C, humidity 15R.H., oxygen content 12%；Drying gas is changed into temperature by drying process
The humid air for being 99.5R.H. for 28 DEG C, humidity；
S3：The sludge transported in step s 2 to the conveying bottom tape cell end is discharged from discharging opening, discharge
The water content of sludge is 10%-15%；
S4：The humid air is dehumidified, the moisture after condensation is collected in condensate drain pan, machine is discharged through drainpipe
Outside, will drying gas come back in wind side condenser be used for be heated to temperature be 40 DEG C, humidity 20R.H., again through blower fan
Blow to bottom conveying belt unit.
Embodiment 4
The present embodiment is the transmission belt in embodiment 1-3.It is described transmission tape cell include base 1, motor 2, driving wheel 3,
Driven pulley 4, conveyor chain 5 and sewage collecting tank 6, the driving wheel 3 and the driven pulley 4 are respectively arranged on the both ends of base 1,
The conveyor chain 5 is sheathed on the driving wheel 3 and the driven pulley 4, and the driving wheel 3 shares two, and the motor 2 is set
Between described two driving wheels 3, and the driving wheel 3 is driven to rotate coaxially, the motor 2 and reductor (not shown)
Electrical connection, the reductor electrically connect with controller (not shown).The transmission tape cell is before the conveyor chain
Enter direction to shift to install.The sewage collecting tank 6 is located at the side-lower of the conveyor chain 5.The lower end of the sewage collecting tank 6
Provided with discharge outlet 7.So, the water in the sludge on transmission tape cell can be drained into the sewage collecting tank 6, Ran Houcong
The discharge outlet 7 is drained.Tape cell is transmitted in embodiment 1-3 described in each bar from top to bottom in the advance of the conveyor chain 5
Direction shifts to install.
So, by controlling reductor speed, to control conveyer belt transporting velocity, the sludge drying of every conveyer belt is ensured
Moisture is controlled, and energy consumption maximumlly utilizes, so as to reach energy-conservation.
The sludge drying method of the present invention has advantages below：
(1) is energy-efficient：Using low-temperature circulating dry technology, drying gas temperature is no more than 40 DEG C, can be with recycle-water
Segregation junction latent heat, efficiency of energy utilization is high, than traditional sludge drying method energy-conservation more than 40%.
(2) environmental protection：Process dries gas reusable edible, less than 40 DEG C carry out low temperature and do without any pollutant emission
Change, effectively avoid the volatilization of the malodor molecules such as chain alkanes, arene, amine.To environment without any pollution.
(3) safety：Oxygen content is relatively low in the drying gas of this method, and operation this method is without blast, electric leakage, oil leak, gas leakage
Etc. potential safety hazard.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and replacement can also be made, these improve and replaced
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of sludge drying method of sludge drying machine system, it is characterised in that comprise the following steps：
S1：By sludge by sludge extruder into strips, and be uniformly distributed on conveyer belt, the speed of the conveyer belt is by subtracting
Fast machine control；
S2：During sludge transports on the conveyor belt, blower fan discharges drying gas drying sludge upwards, while dries gas
Absorb moisture and be changed into humid air；The conveyer belt is made up of some conveying belt units set from top to bottom, and sludge is transporting
Fallen to during to upper strata conveyer belt end on conveying belt of lower floor；
S3：Discharged transporting in step s 2 to the sludge of the conveying end of tape from discharging opening；
S4：The humid air is dehumidified by condenser, the moisture of condensation is expelled to outside sludge drying machine system, will
To drying gas circulation into condenser.
2. sludge drying method as claimed in claim 1, it is characterised in that：The blower fan is bottom up from bottom conveyer belt
Discharge drying gas.
3. sludge drying method as claimed in claim 1, it is characterised in that：The conveyer belt by reductor, controller and from
3-5 transmission tape cell composition under up to, the reductor electrically connect with the controller, the conveying belt unit overall length
Spend for 40-64m.
4. sludge drying method as claimed in claim 3, it is characterised in that：The transmission tape cell includes base, motor, master
Driving wheel, driven pulley and conveyor chain, the driving wheel and the driven pulley are respectively arranged on the base both ends, the conveyor chain
It is sheathed on the driving wheel and the driven pulley, the driving wheel shares two, and the motor is located at described two driving wheels
Between, and drive the driving wheel to rotate coaxially, the motor and the deceleration mechatronics.
5. sludge drying method as claimed in claim 4, it is characterised in that：The transmission tape cell is in the conveyor chain
Direction of advance shifts to install.
6. sludge drying method as claimed in claim 1, it is characterised in that：The temperature of the drying gas is 35-45 DEG C,
The humidity of the drying gas is 15-25R.H..
7. sludge drying method as claimed in claim 6, it is characterised in that：The temperature of the drying gas is 40 DEG C, described
The humidity for drying gas is 20R.H..
8. sludge drying method as claimed in claim 1, it is characterised in that：Flow velocity≤2m/s of the drying gas, it is described
Dry oxygen content≤12% of gas.
9. sludge drying method as claimed in claim 1, it is characterised in that：The temperature of the humid air is 28-32 DEG C, institute
The humidity for stating humid air is 98-99.5R.H..
10. sludge drying method as claimed in claim 9, it is characterised in that：The temperature of the humid air is 30 DEG C, described wet
The humidity of air is 99R.H..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710863104.9A CN107522379A (en) | 2017-09-21 | 2017-09-21 | A kind of sludge drying method of sludge drying machine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710863104.9A CN107522379A (en) | 2017-09-21 | 2017-09-21 | A kind of sludge drying method of sludge drying machine system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107522379A true CN107522379A (en) | 2017-12-29 |
Family
ID=60737104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710863104.9A Pending CN107522379A (en) | 2017-09-21 | 2017-09-21 | A kind of sludge drying method of sludge drying machine system |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002012811A1 (en) * | 2000-08-09 | 2002-02-14 | Innoplana Umwelttechnik Ag | Method for drying paste-like materials |
| CN103449700A (en) * | 2012-05-30 | 2013-12-18 | 党庆风 | Sludge quick-dry continuous heat-supplying wind-dry type drying device |
| CN104529131A (en) * | 2015-01-06 | 2015-04-22 | 常州市新港热电有限公司 | Hot air drying type sludge drying device |
| CN104710097A (en) * | 2015-03-24 | 2015-06-17 | 北京石油化工学院 | Solar auxiliary heat pump sludge drying system |
| CN204644093U (en) * | 2015-04-23 | 2015-09-16 | 广州市海森环保科技股份有限公司 | Novel sewage sludge drying device |
| CN106045275A (en) * | 2016-07-21 | 2016-10-26 | 黄志荣 | Sludge drying system |
| CN206430514U (en) * | 2017-01-13 | 2017-08-22 | 冯海英 | Practical high-efficiency sludge dehumidifying drying integrated system structure |
| CN206476880U (en) * | 2017-02-16 | 2017-09-08 | 深圳德尔科机电环保科技有限公司 | The device of sludge dehumidifying desiccation is carried out using energy conversion |
-
2017
- 2017-09-21 CN CN201710863104.9A patent/CN107522379A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002012811A1 (en) * | 2000-08-09 | 2002-02-14 | Innoplana Umwelttechnik Ag | Method for drying paste-like materials |
| CN103449700A (en) * | 2012-05-30 | 2013-12-18 | 党庆风 | Sludge quick-dry continuous heat-supplying wind-dry type drying device |
| CN104529131A (en) * | 2015-01-06 | 2015-04-22 | 常州市新港热电有限公司 | Hot air drying type sludge drying device |
| CN104710097A (en) * | 2015-03-24 | 2015-06-17 | 北京石油化工学院 | Solar auxiliary heat pump sludge drying system |
| CN204644093U (en) * | 2015-04-23 | 2015-09-16 | 广州市海森环保科技股份有限公司 | Novel sewage sludge drying device |
| CN106045275A (en) * | 2016-07-21 | 2016-10-26 | 黄志荣 | Sludge drying system |
| CN206430514U (en) * | 2017-01-13 | 2017-08-22 | 冯海英 | Practical high-efficiency sludge dehumidifying drying integrated system structure |
| CN206476880U (en) * | 2017-02-16 | 2017-09-08 | 深圳德尔科机电环保科技有限公司 | The device of sludge dehumidifying desiccation is carried out using energy conversion |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171229 |
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| RJ01 | Rejection of invention patent application after publication |