CN106219936B - A kind of stirring blade structural applied to sludge drying machine - Google Patents
A kind of stirring blade structural applied to sludge drying machine Download PDFInfo
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- CN106219936B CN106219936B CN201610676098.1A CN201610676098A CN106219936B CN 106219936 B CN106219936 B CN 106219936B CN 201610676098 A CN201610676098 A CN 201610676098A CN 106219936 B CN106219936 B CN 106219936B
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- 239000010802 sludge Substances 0.000 title claims abstract description 118
- 238000003756 stirring Methods 0.000 title claims abstract description 41
- 238000001035 drying Methods 0.000 title claims abstract description 30
- 239000002002 slurry Substances 0.000 claims abstract description 41
- 239000007789 gas Substances 0.000 claims abstract description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 33
- 239000003546 flue gas Substances 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000007790 scraping Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000005054 agglomeration Methods 0.000 abstract description 3
- 230000002776 aggregation Effects 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 5
- 238000013019 agitation Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
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- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The present invention proposes a kind of stirring blade structural applied to sludge drying machine.Stirring blade structural of the invention is suitable for hollow paddle sludge drying machine, the stirring blade using hollow hot axis as the rotation in axle center simultaneously, alternating translational movement occurs along the hollow hot axis also in scope of activities, to be conducive to eliminate the sludge bonded in the thermal interface of hollow hot axis in time；Blade also has the function of torsional shaking, so as to mitigate sludge in the bonding on blade surface, and increases stirring dynamics, can inhibit the agglomeration of sludge slurry；The present invention is driven with the smoke backflow of sludge incineration, is improved the utilization efficiency of combustion product gases, is not increased the driving load of hollow hot spindle motor, does not reduce the channel space of sludge slurry conveying, it is not easy to it is stuck with machine breakdown accident that accident occur.
Description
Technical field
The present invention relates to technical field of sludge treatment more particularly to a kind of stirring blade knots applied to sludge drying machine
Structure.
Background technique
Sludge is a kind of important pollution output object formed in industrial and agricultural production and urban life, in water supply source
The Industrial Wastewater Treatments such as purification, sanitary sewage emission treatment, papermaking, printing and dyeing, training of channel excavation and drainage dredging etc. are movable
In can all generate sludge.Contain a large amount of harmful microorganisms, heavy metal and organic pollutant in sludge, if do not located properly
It sets, serious negative effect can be brought to natural environment and people's health.
Sludge incineration is that the inflammable substance in sludge is made to generate burning at high temperature, its oxygenolysis is enabled, to reach
Sludge capacity is reduced, harmful microorganism is killed, remove toxicity and makes full use of the purpose of the energy.Sludge incineration is at present in state
It is outer sludge volume to be made to minimize using relatively broad and mature sludge high temperature processing technique, and there is processing speed
Fastly, place limits less, reduces transport stacking cost, the advantage of the secondary use energy.Sludge incineration technology China in recent years
Significant progress is obtained.
Sludge incineration include the collection of sludge raw material, mechanical dehydration, sludge drying, burning, incineration flue gas processing, burn after give up
The links such as material processing, heat recovery and utilization.Sludge drying is required processing step in sludge incineration.Sludge raw material passes through machine
Moisture content after tool dehydration remains at 80% or so, burns to realize, it is necessary to further will by drying and other treatment
Its moisture content is reduced to 40%-50% or so.
Mud drying process is mainly the process of moisture evaporation, according to the mode that heat-conducting medium is contacted with sludge, is divided into straight
Connect desiccation, indirectly drying.Direct desiccation is the surface that sludge is flowed through using hot-air or hot fume as heat-conducting medium, by direct
It contacts to sludge transfer heat.In indirectly drying, the heat-conducting mediums such as conduction oil do not contact directly with sludge generation, but pass through stream
Through internal heat exchanger, the sludge outside heat exchanger is delivered heat to, sludge water content is promoted to evaporate.
Hollow blade sludge drying machine is a kind of equipment for realizing sludge indirectly drying.As shown in Figure 1, hollow blade sludge
The heat exchanger sections of desiccation machine specifically include that hollow hot axis 2, the thermally conductive collet 3, blade 4 of 1, one group of double rod of exchanger cavity.
Conduction oil through Resistant heating to after 160 degrees Celsius or more, flows into hollow hot axis and thermally conductive collet as heat-conducting medium；It is wet
Sludge enters exchanger cavity by feeding inlet, contacts with hollow hot axis and heat conducting clamp set, thus what absorption was conducted by conduction oil
Heat promotes the evaporation of moisture in wet mud.Meanwhile hollow hot axis being rotated by motor, it drives with hollow heat
Axis is agitation of the blade to sludge that axle center is fixedly mounted, agitation role include: make sludge formed thick sludge slurry,
Promote sludge slurry thermally equivalent, provide promotion conveying capacity to sludge slurry to make it move to discharge port.Under the agitation of blade,
Thick sludge slurry is formed by be not easy because moisture evaporation generation is hardened；Moreover, because the hollow hot axis of two bars turns in opposite directions
It is dynamic, so that blade is mutually mediated, the effect of extrusion shearing power is provided to sludge slurry in drying process, be adhered to sludge slurry will not
Thermal resistance is formed on blade and hollow hot axis.
But in the second half section of cavity, sludge slurry becomes more sticky because moisture content continues to decline, and the extruding of blade is made
It is died down, still sludge can be made to be bonded in the surface of thermo-contact and can not fallen off or even the entire contact surface of hollow hot axis with effect
It is all covered by hardened sludge, causes the serious reduction of heat-conducting effect.Meanwhile sludge can be also bonded on lodicule, cause lodicule
Agitaion be weakened, the impetus of mud movement is also reduced by, and increases rotating load.
In the prior art, the heat that bonding covers hollow hot axis when sludge slurry moisture content declines to a certain extent is solved to connect
The main means of this problem of contacting surface are to dispose additional cataclasitlc structure to smash hardened sludge it is made to fall off.For example, through examining
Rope, Chinese patent literature CN104496147, which is disclosed, smashes bar in the setting of blade outer rim, smashes bar by an independent motor driven,
And the rotation direction of the motor and hollow hot axis driving motor rotation direction on the contrary, thus, with smashing rotating backward for bar,
Blocky sludge is smashed.Chinese patent literature CN201344712 is disclosed is equipped with scraper, scraper between adjacent hollow blade
The monolith sludge between two blades is destroyed, and material wall not easy to stick in drying process, improves drying speed.
But installing these additional cataclasitlc structures can make more to increase in the driving load of hollow hot axis, or need
Set driving motor separately to increase equipment cost；And the functioning window of cataclasitlc structure has limitation, cannot make entire hollow heat
Axis and each blade can eliminate the bonding of sludge；The presence of these additional cataclasitlc structures reduces the logical of sludge slurry conveying
Road space increases the obstruction of conveying sludge slurry；Since channel space becomes smaller, encounters and be mingled with larger harder sludge in sludge slurry
When block, it be easy to cause stuck or causes equipment sharp pounding, or even the normal operation of whole system can be jeopardized.
Summary of the invention
In view of above-mentioned problem above existing in the prior art, the present invention proposes a kind of stirring applied to sludge drying machine
Blade structural.Stirring blade structural of the invention is suitable for hollow paddle sludge drying machine, and the stirring blade is with hollow warm
Axis be the rotation in axle center simultaneously, alternating translational movement occurs along the hollow hot axis also in scope of activities, to be conducive in time
Eliminate the sludge in the thermal interface bonding of hollow hot axis；Blade also has the function of torsional shaking, exists so as to mitigate sludge
The bonding on blade surface, and stirring dynamics is increased, it can inhibit the agglomeration of sludge slurry；The present invention is driven with the smoke backflow of sludge incineration
It is dynamic, the utilization efficiency of combustion product gases is improved, does not increase the driving load of hollow hot spindle motor, does not reduce the logical of sludge slurry conveying
Road space, it is not easy to occur that accident is stuck and machine breakdown accident.
The present invention provides a kind of stirring blade structurals applied to sludge drying machine, which is characterized in that the agitating paddle
Piece includes: slidably fixed part (301), blade (302), blade supporting part (303)；The slidably fixed part (301) is nested with
On hollow paddle shaft (204A, 205A), and can be along the outside wall surface of hollow paddle shaft (204A, 205A) in a scheduled displacement
It is slided within range；Slidably fixed part (301) has skiving blade (301A), and skiving blade (301A) is in slidably fixed part
(301) its blade is attached at the outside wall surface of hollow hot axis during sliding along hollow hot axis, and scraping removes outside hollow hot axis
The sludge slurry of surface adhesion；Blade (302), blade supporting part (303) are installed in slidably fixed part 301；Wherein blade
(302) it is mounted on slidably fixed part (301) by pivot (302A), and can be around the pivot (302A) in a certain range
It swings；Blade supporting part (303) contacts blade (303) and provides certain support force for blade (303), keeps its installation firm,
And the non axial stress of hollow paddle shaft is reduced, and the swing for blade (302) provides position-limiting action.
Preferably, the slidably fixed part (301) and the piston structure of the flue gas impeller-hub of sludge drying machine are fixed
Connection, to be slided by piston driving with direction identical with sludge slurry flow direction；Also, after sliding in place, the paddle
Leaf (302) continues around axle center rotation and the reaction force by sludge slurry, drive lose the slidably fixed part of piston promotion
(301) it is slided to the direction opposite with sludge slurry flow direction, to realize reset.
Preferably, it is the blade of wave linear shape that the skiving blade (301A), which has cross section profile,.
Preferably, a piece of or two panels blade slidably each can be set on fixed part (301).
Preferably, blade (302) has the contact portion (302B) of cambered surface, and passes through the contact portion (302B) and blade
Supporting part (303) is in contact.
It may further be preferable that blade (302) has locating rod (302C), the locating rod (302C) is from contact portion
(302B) extends to the limiting slot (303A) of blade supporting part (303), so that the swing for blade (302) provides position-limiting action,
It is avoided to swing excessive.
Using the sludge drying machine of present invention stirring blade structural characterized by comprising drive motor, Double-axis transmission
Case, heat exchange cavity, the first groomed oar, the second groomed oar, thermal medium delivery pump, thermally conductive collet, air intake, steam (vapor) outlet,
Feeding inlet and discharge port；Drive motor is used to provide driving around its hollow paddle shaft rotation for the first groomed oar and the second groomed oar
Power；Double-axis transmission case connects the motor shaft of drive motor, and has there are two torque output shaft, two torque output shafts respectively with
The groomed oar axis connection of first groomed oar and the second groomed oar, to directly drive two groomed oar rotations；First groomed oar packet
Hollow paddle shaft and several groups stirring blade proposed by the present invention are included, the second groomed oar includes that hollow paddle shaft is mentioned with the several groups present invention
Stirring blade out；The heat exchange mediums such as conduction oil, the hot steam that circulation is conveyed by thermal medium delivery pump in hollow paddle shaft, are located at
Heat exchange medium is also conveyed by thermal medium delivery pump in thermally conductive collet below heat exchange cavity；Air enters heat by air intake
In inverting chamber body, the vapor for driving moisture removal and generating is discharged from steam (vapor) outlet；It is former through the dewatered sludge of preliminary mechanical
Material enters heat exchange cavity from feeding inlet, from discharge hole for discharge.
Preferably, the hollow paddle shaft includes main shaft and flue gas impeller-hub；The spindle drive torque and in it
Circulate above-mentioned heat exchange medium in portion；The high temperature and high pressure flue gas of sludge incineration generation is passed through inside flue gas impeller-hub；Flue gas impeller-hub
With piston structure；The piston structure is fixedly attached to the stirring blade, and piston structure can under flue gas promotion
To be run along flue gas pushing direction；Flue gas impeller-hub has gas bleeder valve, for flue gas to be controllably discharged.
Preferably, the slidably fixed part inner circumferential has recess, and the outer rim protrusion of main shaft is embedded in the recess, thus
Make slidably that fixed part while sliding can be with hollow paddle shaft axis rotation.
As it can be seen that the present invention does not reduce the channel space of sludge slurry conveying in the driving load for not increasing hollow hot spindle motor
In the case where, the structure of blade itself is stirred by improving groomed oar, can effectively remove hollow paddle shaft surface and blade from
The sludge paddle of body adherency avoids the problem that sludge slurry bonding generates, increases heat exchanger effectiveness, improve torque utilization rate, reinforcing is stirred
Effect is mixed, and unexpected stuck and machine breakdown accident is less likely to occur.
Detailed description of the invention
Fig. 1 is hollow paddle sludge drying machine structural schematic diagram in the prior art；
Fig. 2A -2B is the hollow paddle sludge drying machine structural schematic diagram of first preferred embodiment of the invention；
Fig. 3 is the blade structural stereoscopic schematic diagram of first preferred embodiment of the invention；
Fig. 4 is the blade structural floor map of first preferred embodiment of the invention；
Fig. 5 is the blade fixed position schematic diagram of first preferred embodiment of the invention；
Fig. 6 is the blade structural stereoscopic schematic diagram of second preferred embodiment of the invention.
Specific embodiment
Below by embodiment, technical solution of the present invention is described in further detail.
First preferred embodiment
Stirring blade structural provided by the invention is applied to hollow paddle sludge drying machine.Fig. 2A -2B shows installation should
Stir the hollow paddle sludge drying machine of blade structural.The desiccation machine includes drive motor 201, Double-axis transmission case 202, heat exchange
Cavity 203, the first groomed oar 204, the second groomed oar 205, thermal medium delivery pump 206, thermally conductive collet 207, air intake 208,
Steam (vapor) outlet 209, feeding inlet 210 and discharge port 211.Drive motor 201 is used to be the first groomed oar 204 and the second groomed oar
205 provide driving force around its hollow paddle shaft rotation；Double-axis transmission case 202 connects the motor shaft of drive motor 201, and has two
A torque output shaft, two torque output shafts groomed oar axis connection with the first groomed oar 204 and the second groomed oar 205 respectively,
To directly drive two groomed oar rotations.First groomed oar 204, the second groomed oar 205 main part in heat exchange cavity
In 203, the first groomed oar 204 includes hollow paddle shaft 204A and several groups stirring blade 204B proposed by the present invention, and second is hollow
Paddle 205 includes hollow paddle shaft 205A and several groups stirring blade 205B proposed by the present invention；Blade 204B, 205B are stirred with sky
The rotation of heart paddle shaft 204A, 205A becomes slurry and thermally equivalent to play the role of stirring sludge to remove moisture,
And sludge slurry is pushed to flow, the specific structure of groomed oar each section will be explained in greater detail below.Hollow paddle shaft 204A, 205A
The interior heat exchange mediums such as conduction oil, the hot steam conveyed by thermal medium delivery pump 206 that circulate are located at 203 lower section of heat exchange cavity
Thermally conductive collet 207 in also by thermal medium delivery pump 206 convey heat exchange medium；The heat exchange medium of high temperature and the sludge of low temperature
Heat exchange occurs for slurry, so that the moisture in sludge be made to evaporate by heat removing.Realize gas circulation air by air intake 208 into
Enter in heat exchange cavity 203, the vapor for driving moisture removal and generating is discharged from steam (vapor) outlet 209.It is dehydrated through preliminary mechanical
There is the sludge raw material compared with high-moisture percentage to enter heat exchange cavity from feeding inlet 210 afterwards, and under the promotion of groomed oar, pass through
Stirring discharges with after the process of heat exchange from discharge port 211.
Also, as shown in Figure 2 B, the sky different, of the invention with the hollow paddle shaft of general hollow paddle sludge drying machine
Heart paddle shaft 204A, 205A includes main shaft 2041A, 2051A and flue gas impeller-hub 2042A, 2052A；Main shaft 2041A, 2051A's
Effect is mainly driving torque, and the above-mentioned heat exchange medium that circulates inside it；Flue gas impeller-hub 2042A, 2052A respectively with
Main shaft 2041A, 2051A are arranged side by side and integrally combine, and sludge incineration generation is passed through inside flue gas impeller-hub 2042A, 2052A
High temperature and high pressure flue gas, flow direction and sludge slurry of the flue gas inside flue gas impeller-hub 2042A, 2052A are in stirring blade
Flow direction under 204B, 205B are pushed is identical；Flue gas impeller-hub 2042A, 2052A have piston structure 2043A, 2053A；It is living
Plug structure 2043A, 2053A are fixedly attached to stirring blade 204B, 205B provided by the invention；And piston structure 2043A,
2053A can be run under flue gas promotion along flue gas pushing direction, to drive stirring blade 20413, the equidirectional fortune of 205B
Row；After piston structure 2043A, 2053A are run in place, flue gas can be discharged by the gas bleeder valve of flue gas impeller-hub 2042A, 2052A
To release motive force.
It is the blade structural stereoscopic schematic diagram of this preferred embodiment referring to Fig. 3 and Fig. 4, Fig. 3, Fig. 4 is that the present invention first is excellent
Select the blade structural floor map of embodiment.Stirring blade 204B, 205B specific structure of the invention includes: slidably fixed
Portion 301, blade 302, blade supporting part 303.
Referring to fig. 4, it is seen then that the slidably fixed part 301 is nested in hollow paddle shaft 204A, 205A, and can edge
The outside wall surface of hollow paddle shaft 204A, 205A slided within a scheduled shift range, when to reach this maximum for sliding distance
Range, then it is assumed that stirring blade slides into position；Slidably fixed part 301 is fixedly connected with the piston structure of flue gas impeller-hub, from
And the power by piston driving, as its sliding；Slidably there is fixed part 301 skiving blade 301A, skiving blade 301A can slide
Its blade is attached at the outside wall surface of hollow hot axis during dynamic fixed part 301 is slided by piston driving and along hollow hot axis,
Scraping removes the sludge slurry of hollow hot axis outer surface adherency.As shown in Figure 2 B, slidably 301 inner circumferential of fixed part has recess, main
The outer rim protrusion of axis is embedded in the recess, to make slidably that fixed part 301 while sliding can be with hollow paddle shaft axis
Heart rotation.
Blade 302, blade supporting part 303 are installed in slidably fixed part 301.Each slidably on fixed part 301
A piece of or two panels blade can be set.Blade fixed position schematic diagram as shown in Figure 5, blade 302 are installed by pivot 302A
On slidably fixed part 301, and it can be swung in a certain range around pivot 302A.Blade 302 has the contact of cambered surface
Portion 302B, and be in contact by contact portion 302B with blade supporting part 303.Blade supporting part 303 is that blade 303 provides one
Fixed support force keeps its installation firm, and reduces the non axial stress of hollow paddle shaft.Determine as shown in figure 4, blade 302 has
Position bar 302C extends to the limiting slot 303A of blade supporting part 303 from its contact portion 302B, so that the swing for blade 302 provides
Position-limiting action avoids it from swinging excessive.
In the process of running, slidably fixed part 301 generates sliding, glide direction and sludge first under the drive of piston
Slurry is identical in the intracorporal flow direction of heat exchange chamber, and drives 302 synchronous slide of blade；While sliding, blade 302 also as
Hollow paddle shaft rotates about axis rotation, to be stirred and push to sludge slurry；After sliding in place, because flue gas is let out
Out, piston stops the promotion to slidably fixed part 301；Blade 302 continues around axle center rotation, so that sludge slurry is pushed, meanwhile,
By the reaction force of sludge slurry, blade 302, which will drive, to be lost the slidably fixed part 301 of promotion and slides in the opposite direction,
It to realize reset, is completed when resetting, the flue gas that can carry out next round pushes；In the process of reciprocating, skiving blade
301A can remove the sludge paddle being attached in hollow paddle shaft, avoid it from continuing heated and hardened obstruction heat exchange occurs, and drop
The torque of low latitude heart paddle shaft carrying；Blade 302 can limit range due to self inertia and by the resistance of sludge slurry
It is interior to generate reciprocally swinging around pivot 302A, vibrating effect is quickly then generated enough when swinging, on the one hand this swing can add
By force to the stirring action of sludge slurry, it especially can avoid sludge agglomeration, on the other hand also sticky sludge slurry can be avoided to be adhered to
On blade.
Second preferred embodiment
Fig. 6 is the blade structural stereoscopic schematic diagram of second preferred embodiment of the invention.As first preferred embodiment, this
Stirring blade 204B, 205B specific structure of embodiment includes: slidably fixed part 301, blade 302, blade supporting part 303.
The slidably fixed part 301 is nested in hollow paddle shaft 204A, 205A and is fixedly connected piston, can be along hollow paddle shaft
The outside wall surface of 204A, 205A are slided within a scheduled shift range, and slidably fixed part 301 has for striking off groomed oar
The skiving blade 301A of the sludge slurry of axis surface adhesion.Blade 302, blade supporting part 303 are installed in the slidably fixed part
301, blade 302 is mounted on slidably fixed part 301 by pivot 302A, and can be around pivot 302A in a certain range
It swings.Blade 302 has the contact portion 302B of cambered surface, and is in contact by contact portion 302B with blade supporting part 303, paddle
The limiting slot 303A that leaf 302 has locating rod 302C to extend to blade supporting part 303 from its contact portion 302B.
As shown in figure 4, the skiving blade of first preferred embodiment uses flat sword, the sludge slurry after scraping is easy to be deposited in sword
In front of direction of travel, scraping next time is influenced, sludge can be remained between two stirring blades over time, or make dirt
Mud is adhered on sword again.Therefore, in the present embodiment, as shown in fig. 6, using cross section profile as the skiving blade of wave linear shape
301A, not only shaving effect is good for the skiving blade of wave linear shape, and has the function of guidance discharge to the sludge paddle scraped away, keeps away
Exempt from sludge accumulation, shaving effect can be increased.
As it can be seen that the present invention does not reduce the channel space of sludge slurry conveying in the driving load for not increasing hollow hot spindle motor
In the case where, the structure of blade itself is stirred by improving groomed oar, can effectively remove hollow paddle shaft surface and blade from
The sludge paddle of body adherency avoids the problem that sludge slurry bonding generates, increases heat exchanger effectiveness, improve torque utilization rate, reinforcing is stirred
Effect is mixed, and unexpected stuck and machine breakdown accident is less likely to occur.
Above embodiments are merely to illustrate the present invention, and not limitation of the present invention, the common skill in relation to technical field
Art personnel can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all etc.
Same technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (9)
1. a kind of stirring blade structural applied to sludge drying machine, which is characterized in that the stirring blade includes: slidably solid
Determine portion (301), blade (302), blade supporting part (303)；The slidably fixed part (301) be nested with hollow paddle shaft (204A,
On 205A), and it can be slided within a scheduled shift range along the outside wall surface of hollow paddle shaft (204A, 205A)；It can
Sliding fixed part (301) has skiving blade (301A), and skiving blade (301A) is sliding along hollow hot axis in slidably fixed part (301)
Its blade is attached at the outside wall surface of hollow hot axis in dynamic process, and scraping removes the sludge slurry of hollow hot axis outer surface adherency；Paddle
Leaf (302), blade supporting part (303) are installed in slidably fixed part (301)；Wherein blade (302) passes through pivot
(302A) is mounted on slidably fixed part (301), and can be swung in a certain range around the pivot (302A)；Blade support
Portion (303) contacts blade (302) and provides certain support force for blade (302), keeps its installation firm, and reduce hollow
The non axial stress of paddle shaft, and the swing for blade (302) provides position-limiting action.
2. stirring blade structural according to claim 1, which is characterized in that the slidably fixed part (301) and sludge
The piston structure of the flue gas impeller-hub of desiccation machine is fixedly connected, thus by piston driving with side identical with sludge slurry flow direction
To sliding；Also, after sliding in place, the blade (302) continues around axle center and rotates and the reaction force by sludge slurry, band
The dynamic slidably fixed part (301) for losing piston promotion is slided to the direction opposite with sludge slurry flow direction, to realize multiple
Position.
3. stirring blade structural according to claim 1, which is characterized in that the skiving blade (301A) has cross section profile
For the blade of wave linear shape.
4. stirring blade structural according to claim 1, which is characterized in that be each slidably arranged on fixed part (301)
A piece of or two panels blade.
5. stirring blade structural according to claim 1, which is characterized in that blade (302) has the contact portion of cambered surface
(302B), and be in contact by the contact portion (302B) with blade supporting part (303).
6. stirring blade structural according to claim 5, which is characterized in that blade (302) has locating rod (302C), institute
The limiting slot (303A) that locating rod (302C) extends to blade supporting part (303) from contact portion (302B) is stated, to be blade
(302) swing provides position-limiting action, avoids it from swinging excessive.
7. a kind of sludge drying machine of application stirring blade structural characterized by comprising drive motor, Double-axis transmission case, heat
Exchange cavity, the first groomed oar, the second groomed oar, thermal medium delivery pump, thermally conductive collet, air intake, steam (vapor) outlet, feeding inlet
And discharge port；Drive motor is used to provide driving force around its hollow paddle shaft rotation for the first groomed oar and the second groomed oar；Twin shaft
Transmission case connects the motor shaft of drive motor, and has there are two torque output shaft, and two torque output shafts are empty with first respectively
The groomed oar axis connection of heart paddle and the second groomed oar, to directly drive two groomed oar rotations；First groomed oar includes hollow
Paddle shaft and several groups the stirring blade according to one claim of any of the above, if the second groomed oar include hollow paddle shaft with
Dry group stirring blade according to one claim of any of the above；Circulation is conveyed by thermal medium delivery pump in hollow paddle shaft
Heat exchange medium also conveys heat exchange medium by thermal medium delivery pump in the thermally conductive collet below heat exchange cavity；Air
Entered in heat exchange chamber body by air intake, the vapor for driving moisture removal and generating is discharged from steam (vapor) outlet；Through preliminary machine
The dewatered sludge raw material of tool enters heat exchange cavity from feeding inlet, from discharge hole for discharge.
8. sludge drying machine according to claim 7, which is characterized in that the hollow paddle shaft includes that main shaft and flue gas push away
Moving axis；The spindle drive torque and the above-mentioned heat exchange medium that circulates inside it；Sludge incineration is passed through inside flue gas impeller-hub
The high temperature and high pressure flue gas of generation；Flue gas impeller-hub has piston structure；The piston structure is fixedly attached to the stirring blade,
And piston structure can be run under flue gas promotion along flue gas pushing direction；Flue gas impeller-hub has gas bleeder valve, and being used for can
Control ground discharge flue gas.
9. sludge drying machine according to claim 7, which is characterized in that the slidably fixed part inner circumferential has recess,
The outer rim protrusion of main shaft is embedded in the recess, thus make slidably fixed part while sliding with hollow paddle shaft axle center turn
It is dynamic.
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| CN108341585A (en) * | 2018-04-13 | 2018-07-31 | 南京中船绿洲环保有限公司 | A kind of indirect thermal desorption device of sludge |
| CN110040935A (en) | 2019-05-28 | 2019-07-23 | 南昌航空大学 | A kind of multiple layer combination gravity type sludge drying mechanism and drying means |
| CN112121623B (en) * | 2020-09-30 | 2022-08-12 | 湖北北新建材有限公司 | Automatic desulfurization system and desulfurization method |
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| CN104909534A (en) * | 2015-04-03 | 2015-09-16 | 浙江三联环保机械设备有限公司 | Rotor drying device capable of preventing sludge hardening |
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| CN104909534A (en) * | 2015-04-03 | 2015-09-16 | 浙江三联环保机械设备有限公司 | Rotor drying device capable of preventing sludge hardening |
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| 城市污泥桨叶式干化优化实验研究;申维真 等;《环境工程学报》;20131105;第7卷(第11期);第4575-4580页 |
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Denomination of invention: A Stirring Paddle Structure Applied to Sludge Drying Machine Effective date of registration: 20231222 Granted publication date: 20190611 Pledgee: Zhejiang Qingtian Rural Commercial Bank Co.,Ltd. Youzhu Branch Pledgor: GREEN WATER CO.,LTD. Registration number: Y2023980073042 |
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