CN105276958A - Drying device and drying system - Google Patents
Drying device and drying system Download PDFInfo
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- CN105276958A CN105276958A CN201510266460.3A CN201510266460A CN105276958A CN 105276958 A CN105276958 A CN 105276958A CN 201510266460 A CN201510266460 A CN 201510266460A CN 105276958 A CN105276958 A CN 105276958A
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- dried object
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Abstract
The present invention provides a drying device and a drying system. In the drying device having a plurality of stirring and conveying mechanisms, offset of a dried object in the direction perpendicular to a conveying direction of the stirring and conveying mechanisms can be relieved or prevented through stirring and conveying. The drying device (10) which dries the dried object while stirring and conveying the dried object comprises: the plurality of stirring and conveying mechanisms (20) which stir and convey the dried object through rotation of stirring shafts (21); and separating plates (51) arranged among the plurality of stirring and conveying mechanisms (20) and used for limiting movement of the dried object from one stirring and conveying mechanism (20) to the adjacent other stirring and conveying mechanism (20).
Description
Technical field
The present invention relates to and stir and carry dried object while make the drying device of its drying and comprise the drying system of this drying device.
Background technology
In the past, there will be a known and stirred and carry the dried object such as mud to make the drying device of its drying.In this drying device, in order to stirring and the conveying of dried object, utilize the axle being provided with multiple row blade (oar).By the rotation of axle, the blade being arranged at axle also pivots, and thus, the dried object to the axial end side supply of axle is stirred is carried by another side of axis to axle.During this stirring, conveying, dried object is dry by heating.
In this drying device, the axle (shaft) possessing blade is set to 21 group, makes the mutual crossover of the blade of 2 axles, it can be used as 1 stirring conveyor structure to improve mixing effect.
When using such drying device to make dried object dry, in order to increase its treating capacity (making the amount of the time per unit of the dried object of its drying), can consider to use multiple stage drying device.But, if increase the number of units of drying device, then need to guarantee that this can need broader space for operating personnel being allowed close to the space of drying device when safeguarding and/or repair for each drying device.
As the technology of company related to the present invention, there is following technology.
Prior art document
Patent document 1: No. 2009/044608th, International Publication
Patent document 2: Japanese Patent No. 2872587 publication
Patent document 3: Japanese Patent Publication 6-46137 publication
Summary of the invention
In order to increase treating capacity, someone proposes and arranges a large amount of shaft at 1 drying device.Such as, someone proposes and arranges 4 row or 6 row shafts at 1 drying device, forms 2 groups or 3 groups of stirring conveyor structures thus.From joint space-efficient viewpoint, it is favourable for arranging a large amount of shaft at 1 drying device.
But, if arrange multiple stirring conveyor structure at 1 drying device, then can produce difference by each stirring conveyor structure on operating condition, rate of drying and/or transporting velocity difference, dried object can move to adjacent stirring conveyor structure, produces the bias in the direction vertical with throughput direction in dried object.At this, the difference of operating condition be the rotating speed of axle, for heat the thermal medium condition of dried object smallly to depart from, axle and/or the small difference of shape of blade, the bias etc. of the input amount of dried object.
The difference eliminating operating condition in multiple stirring conveyor structure is completely extremely difficult, in addition, under many circumstances, is also difficult to determine that the bias of dried object by which condition of above-mentioned operating condition is caused.
The object of the invention is to, stirring in the drying device that dried object carries, alleviate or prevent with the stirring of dried object and carry bias together.
Drying device of the present invention stirs and carries dried object while make it dry, is configured to possess: multiple stirring conveyor structure, and it stirring by making shaft rotate, carrying dried object; With dried object mobile restriction unit, it is arranged between described multiple stirring conveyor structure, for limiting described dried object from a stirring conveyor structure to the movement of other adjacent stirring conveyor structures.
According to this structure, can limit and be stirred and carry dried dried object to move to other adjacent stirring conveyor structures from a stirring conveying device, alleviate or prevent dried object in the phenomenon of the direction upward bias vertical with throughput direction.At this, the restriction of the movement of dried object, except preventing the movement of dried object between stirring conveyor structure completely, also comprises and hinders the movement of dried object between stirring conveyor structure.
In above-mentioned drying device, the space comprising a stirring conveyor structure can be communicated with the space comprising other adjacent stirring conveyor structures.According to this structure, by comprising the space of a stirring conveyor structure and comprising the temperature in space of other adjacent stirring conveyor structures and/or humidity is set to same degree, the drying condition of multiple stirring conveyor structure can be set to same degree.
In above-mentioned drying device, described dried object mobile restriction unit can allow the described movement of described dried object at the supply side of described dried object.According to this structure, can the amount of the dried object be supplied to be made almost impartial in adjacent stirring conveyor structure.
In above-mentioned drying device, described dried object mobile restriction unit can move on the throughput direction of described dried object at described stirring conveyor structure.According to this structure, from the supply side of stirring conveyor structure to discharge side, significant position can be moved in the movement produced on the direction vertical with the throughput direction of dried object or this and dried object mobile restriction unit is set.
Above-mentioned drying device also can possess the heating unit heating described dry thing mobile restriction unit.In drying device, sometimes promoted the drying of dried object by heating shaft or heated shell, but according to this structure, also can be promoted the drying of dried object by dried object mobile restriction unit.
Above-mentioned drying device also can possess control device, and this control device, based on the moisture content by the dried described dried object of described stirring conveyor structure, controls described multiple stirring conveyor structures drying condition separately separately.According to this structure, such as, can regulate the drying condition of each stirring conveyor structure, to make the moisture content of the dried object in each stirring conveyor structure equal.
In above-mentioned drying device, can at described stirring conveyor structure to the throughput direction of described dried object being discharged the described dried object of being carried by described stirring conveyor structure.According to this structure, the moisture content of the dried object of discharge can not become uneven because of short distance and/or sluggishness, can carry out uniform drying.
In above-mentioned drying device, the below of described stirring conveyor structure dried object receiving portion can be provided with, the discharge side of described stirring conveyor structure the height-adjustable discharge weir erected from described dried object receiving portion can be provided with.According to this structure, the moisture content of the dried object of discharge can be regulated.
In above-mentioned drying device, described discharge weir can regulate height respectively independently about described multiple stirring conveyor structure.According to this structure, the moisture content of dried object can be regulated by each stirring conveyor structure.
Above-mentioned drying device can also possess supply adjustment unit, this supply adjustment unit makes the described dried object homogenising in the orientation of described stirring conveyor structure be supplied in described drying device, and its discharge side to described stirring conveyor structure is moved.According to this structure, due to the dried object to multiple stirring conveyor structure supply equivalent, so drying condition can be made in this equal.
Above-mentioned drying device also can possess reservoir, this reservoir accumulates the described dried object be supplied in described drying device, and have upper end level as described in supply the supply weir of adjustment unit, the described dried object behind the described upper end on described supply weir can be crossed to described multiple stirring conveyor structure supply.According to this structure, the dried object of crossing behind supply weir is transported to conveyor side.
In above-mentioned drying device, the adjustment plate that described supply adjustment unit can be arranged above described stirring conveyor structure, can make the described dried object be supplied in described drying device its discharge side to described stirring conveyor structure be carried by the below of described adjustment plate.According to this structure, with erect supply weir is set situation compared with, the dried object of supply can not erect some retention on weir, and the dried object of supply can be made dry successively.
Drying system of the present invention is configured to be possessed: above-mentioned drying device; To the dried object feed mechanism of described drying device supply dried object; And the dried object output mechanism of dried dried object is discharged from described drying device.
According to this structure, also can limit and be stirred and carry dried dried object to move to other adjacent stirring conveyor structures from a stirring conveying device, alleviate or prevent dried object in the phenomenon of the direction upward bias vertical with throughput direction.
According to the present invention, can limit and be stirred and carry while dried dried object moves to other adjacent stirring conveyor structures from a stirring conveying device, so can alleviate or prevent dried object in the phenomenon of the direction upward bias vertical with throughput direction.
Accompanying drawing explanation
Fig. 1 is the integrally-built skeleton diagram of the sludge dry system that the sludge drying mechanism comprising embodiments of the present invention is shown.
Fig. 2 is the top view of the sludge drying mechanism of embodiments of the present invention.
Fig. 3 is the top view eliminated above of the sludge drying mechanism of embodiments of the present invention.
Fig. 4 is the side view eliminating right flank of the sludge drying mechanism of embodiments of the present invention.
Fig. 5 is the A-A sectional view of the sludge drying mechanism of embodiments of the present invention.
Fig. 6 is the B-B sectional view of the sludge drying mechanism of embodiments of the present invention.
Fig. 7 is the figure of the 1st variation of the dried object mobile restriction unit that embodiments of the present invention are shown.
Fig. 8 is the figure of the 2nd variation of the dried object mobile restriction unit that embodiments of the present invention are shown.
Fig. 9 is the figure of the 3rd variation of the dried object mobile restriction unit that embodiments of the present invention are shown.
Figure 10 is the figure of the 4th variation of the dried object mobile restriction unit that embodiments of the present invention are shown
Figure 11 is the figure of the 5th variation of the dried object mobile restriction unit that embodiments of the present invention are shown.
Figure 12 is the figure of the 6th variation of the dried object mobile restriction unit that embodiments of the present invention are shown.
Figure 13 is the figure of the 7th variation of the dried object mobile restriction unit that embodiments of the present invention are shown.
Figure 14 (a) is the top view of a part for the sludge drying mechanism that variation is shown, and Figure 14 (b) is the side view of a part for the sludge drying mechanism that variation is shown.
Figure 15 (a) is the top view of a part for the sludge drying mechanism that variation is shown, Figure 15 (b) is the side view of a part for the sludge drying mechanism that variation is shown, and Figure 15 (c) is the C-C sectional view of the drying device of variation.
Figure 16 is the sectional view of the structure of the shaft that variation is shown.
Label declaration
100 sludge dry systems
10 sludge drying mechanisms
11 housings
111 mud supply ports
112 circulating air outlets
113 circulating air supply ports
114 sludge-drying outlets
115 case lid
116 fronts
117 back sides
118 right flanks
119 left surfaces
120 bottom surfaces
Above 121
12 bearings
122 supply weirs
122 ' adjustment plate
123 mud reservoirs
13 driving mechanisms
20 stirring conveyor structures
21 shafts
211 axles
212 blades
213 steam supply ports
214 steam outlet
30 discharge guiding mechanism
31 discharge weirs
32 elevating mechanisms
51 demarcation strips
511 windows
52a ~ 52c demarcation strip
53 seam plates
More than 54 rod
More than 55 rod
56 movable demarcation strips
More than 57 sheet material
81 cyclones
82 dehumidifying towers
83 dehumidifying tower circulating pumps
84 circulating fans
85 mist separators
86 preheaters
911 ~ 915 circulating gas pipe
916 blast pipes
921,922 circulation waterways
923 steam pipes
924 steam exhaust pipes
925 dehumidifying tower drainpipes
926 dehumidifying tower feed pipes
927 steam exhaust pipes
Detailed description of the invention
Below, with reference to accompanying drawing, embodiments of the present invention are described.In addition, the embodiment below illustrated illustrates example when implementing of the present invention, the invention is not restricted to the concrete structure of following explanation.When implementing of the present invention, can suitably adopt the concrete structure corresponding to each embodiment.
Fig. 1 is the integrally-built skeleton diagram of the drying system that the drying device comprising embodiments of the present invention is shown.Drying system possesses drying device.Be not particularly limited by the dried object of drying system and drying device drying, but in present embodiment, for dried object be mud, drying system and drying device situation about applying as sludge dry system 100 and sludge drying mechanism 10 is described.
By the mud of sludge drying mechanism 10 drying of present embodiment be become at moisture content after processed about 80% dewatered sludge.Dewatered sludge is by becoming by sludge drying mechanism 10 drying the sludge-drying that moisture content drops to about 30%.In addition, sludge dry system 100 dry addle can mix the various mud such as primary sludge, addle digested sludge, organic sludge, inorganic mud and other mud, can be applicable to addle Treatment stations and/or various Treatment of Sludge field.In addition, the non-essential moisture content that makes of sludge drying mechanism 10 drops to about 30%, also the moisture content of the mud becoming handling object can be declined according to various uses.And then the mud processed by sludge drying mechanism 10 is also not limited to the mud of moisture content 80%, the mud that moisture content is higher and the lower mud of moisture content also can become the handling object of sludge drying mechanism 10.
Sludge dry system 100 possesses sludge drying mechanism 10, cyclone (cyclone) 81, dehumidifying tower 82, dehumidifying tower circulating pump 83, circulating fan 84, mist separator 85 and preheater 86.In sludge drying mechanism 10, be formed with hothouse by housing 11.Be formed for supplying the mud supply port 111 of mud and the sludge-drying outlet 114 for discharging dried mud from hothouse to hothouse at the housing 11 of sludge drying mechanism 10.In addition, be formed for the circulating air supply port 113 to hothouse supply circulating air with for the circulating air outlet 112 from the circulating air after hothouse discharge humidification at the housing 11 of sludge drying mechanism 10.
The mud processed by sludge drying mechanism 10 is supplied in hothouse by the dried object feed mechanism to sludge drying mechanism supply mud from mud supply port 111, discharges after removing moisture in the drying chamber from sludge outlet 114.Dried object feed mechanism can be the sludge pump carrying the mud conveyer belt of mud and/or pump to get mud, and mud output mechanism can be the sludge-drying conveyer belt carrying dried mud.In addition, circulating air is supplied in hothouse from circulating air supply port 113, comprises the steam that evaporates from mud in the drying chamber and discharges from circulating air outlet 112.
The circulating air of discharging from circulating air outlet 112 is supplied to cyclone 81 by circulating gas pipe 911.Remove the circulating air after impurity by cyclone 81 and then be supplied to dehumidifying tower 82 by circulating gas pipe 912.Circulating air is dehumidified by the tower 82 that dehumidifies.In addition, the part lodging in the water of dehumidifying tower 82 is discharged to circulation waterway 921 as mentioned above, and a part is discharged to outside system by dehumidifying tower drainpipe 925.The recirculated water being discharged to circulation waterway 921 utilizes circulation waterway 921, dehumidifying tower circulating pump 83 and circulation waterway 922 carry out circulating and are supplied to dehumidifying tower 82, from circulating air removing moisture.And then, also supply feedwater by dehumidifying tower feed pipe 926 to dehumidifying tower 82.Circulating fan 84 is transported to by circulating gas pipe 913 by the circulating air after dehumidifying tower 82 dehumidifies.Circulating fan 84 makes circulating air flow along loop direction by circulating gas pipe 914.
The front of the loop direction of circulating fan 84 is provided with mist separator 85.Mist separator 85 catches dust in circulating air and/or water droplet and is removed.A part for circulating air after being purified by mist separator 85 turns back to the hothouse of housing 11 inside via the circulating air supply port 113 being arranged at housing 11 by circulating gas pipe 915.Circulating gas pipe 915 is provided with preheater 86, and the circulating air of coming that circulates turns back to hothouse after being heated by preheater 86.A part for circulating air is discharged to the outside of sludge dry system 100 by blast pipe 916.Comprise these cyclones 81, dehumidifying tower 82, circulating fan 84, mist separator 85, preheater 86 and the structure by the circulating gas pipe 911 ~ 915 of their connections and be equivalent to exhaust cycle mechanism.Like this, by utilizing circulating air discharged from hothouse by the steam produced in the process of sludge-drying efficiently and make the air of high temperature low humidity turn back to hothouse, the drying of mud can be promoted.
Be provided with shaft 21 (with reference to Fig. 3) in the inside (hothouse) of the housing 11 of sludge drying mechanism 10, this shaft 21 comprises axle 211 and is installed on the multiple row blade 212 of this axle 211.In the present embodiment, 2 shafts 21 become one group and form stirring conveyor structure 20.That is, sludge drying mechanism 10 is provided with 2 groups of stirring conveyor structures 20.By this stirring conveyor structure 20, mud is stirred to be carried to discharge side by from supply side.Supplying the steam as thermal medium to each shaft 21, by the heat of this steam, being stirred the mud be transferred dry by heating.
Be formed with the steam supply port 213 of supply steam at shaft 21 and discharge the steam outlet 214 of steam or condensed water.Supply steam by steam pipe 923 to shaft 21, to system, discharge steam or condensed water from steam outlet 214 by steam exhaust pipe 924.In addition, the steam pipe 923 supplying steam to steam supply port 213 also extends to preheater 86, supplies steam to preheater 86.The steam of discharging from preheater 86 or condensed water are discharged to system by steam exhaust pipe 927.
According to above structure, in sludge dry system 100, in housing 11, supply mud from mud supply port 111 by dried object feed mechanism.The mud be supplied in housing 11 is stirred by stirring conveyor structure 20, carries while heat, the moisture evaporation that mud comprises.Drying sludge and become sludge-drying, is discharged to housing 11 from sludge-drying outlet 114, and is discharged to outside system by dried object output mechanism.The circulating air comprising the steam evaporated from mud is discharged to housing 11, be subject to dehumidify, purification, preheating effect and again turn back in housing 11.
Fig. 2 is the top view of the sludge drying mechanism of embodiments of the present invention.Fig. 3 removes above sludge drying mechanism in-built figure is shown in the top view of Fig. 2.In the following description, the face in the left side of the housing 11 of Fig. 2 and Fig. 3 is called front 116, the face on right side is called the back side 117, the face of downside is called right flank 118, the face of upside is called left surface 119, the face of paper inboard is called bottom surface 120, the face relative with bottom surface is called 121 above.Fig. 4 is the right flank 118 of removing sludge drying mechanism and its in-built figure is shown.And then Fig. 5, Fig. 6 are A-A sectional view, the B-B sectional view of Fig. 3 respectively.Below, with reference to Fig. 2 ~ 6, the sludge drying mechanism 10 of embodiments of the present invention is described in detail.
2 stirring conveyor structures 20 that sludge drying mechanism 10 has housing 11 and arranges in the inside of this housing 11.Housing 11 roughly has rectangular shape.Hothouse is formed therein by housing 11.Each stirring conveying device 20 is one group with 2 shafts 21 and is formed, and is arranged at the below of housing 11 inside.The sludge drying mechanism 10 of present embodiment possesses the 4 row shafts 21 of extend parallel to each other (axially parallel), and 2 adjacent row shafts 21 are configured with 2 stirring conveyor structures 20 in groups.Multiple blades 212 that shaft 21 possesses axle 211 and arranges around it.
It is parallel with the length direction of housing 11 that axle 211 is configured to its bearing of trend (axis).By the rotation of axle 211, the mud in housing 11 is stirred by blade 212 and carries.In Fig. 2 ~ 4, mud, from the supply of side, the back side 117, is discharged from the side, front 116 of housing 11 by the left conveying to Fig. 2 ~ 4.The through housing 11 in both sides of axle 211 117 sides (supply side) and side, front 116 (discharge side) overleaf.One end of the axle 211 outstanding in the front 116 from housing 11 is provided with the bearing 12 being held in by axle 211 and can rotating, and the other end of the axle 211 outstanding at the back side 117 from housing 11 is provided with the bearing 12 being held in by axle 211 and can rotating.In the outside of bearing 12, be provided with the driving mechanism 13 of driving shaft 211 rotation for each stirring conveyor structure 20.
Axle 211 is hollow, and each row blade 212 is also formed as hollow.The inner space of axle 211 is communicated with the inner space of blade 212.Internally supply the steam as thermal medium in space from the steam supply port of one end of axle 211, discharge steam or condensed water from the steam outlet of the other end.The steam being supplied to the inner space of axle 211 is also passed to the inner space of each row blade 212 and discharges from the inner space of axle 211.By the circulation of such steam, the surface of axle 211 and blade 212 is heated.Mud is by being stirred while contact with axle 211 and/or blade 212 thus heated, and thus, the moisture that mud comprises evaporates.Like this, mud gradually dries out and dry in the process of being carried by stirring conveyor structure 20.
As shown in FIG. 2 and 3, on the housing 11 of sludge drying mechanism 10 121 supply side, be formed with mud supply port 111 for each stirring conveyor structure 20.Circulating air outlet 112 is formed in the side, front 116 of mud supply port 111.The case lid 115 for the open hothouse formed by housing 11 is provided with in the side, front 116 of circulating air outlet 112.By opening case lid 115, cleaning, the repairing of shaft 21 can be carried out.
In the side, front 116 (discharge side) of housing 11, be formed with circulating air air inlet 113 for each stirring conveyor structure 20.In addition, below the discharge side of housing 11, be formed with the sludge-drying outlet 114 for discharging sludge-drying.The bottom surface 120 of the part corresponding with shaft 21 of housing 11 plays function as the mud receiving portion accepting the mud carried.Bottom surface 120 is closed with the matching form of blade 212 and is formed as cross section is circular shape.Each stirring conveyor structure 20 has 2 shafts 21, so bottom surface 120 and the matching form of the blade 212 of these 2 shafts 21 close and cross section 120 is formed as ω shape (reference Fig. 5).Thus, there is mud in the part cannot can not touched at blade 212, and such mud can be prevented to be deposited in corner bottom housing 11.
In each shaft 21, on the surface of the axle 211 of cylindrical shape, multiple row blade 212 is installed.Each blade 212 has fan shape.At each row of axle 211,2 blades 212 are installed.Shaft 21 is rotated by driving mechanisms such as decelerators.In addition, along the end on observation of 2 axles 211 in each stirring conveyor structure 20, the blade 212 being installed on each axle 211 overlaps.
Mud from from mud supply port 111 to the hothouse supply in housing 11 is transported to discharge side by the rotation of shaft 21 from supply side, discharges from sludge-drying outlet 114.Be provided with in the front of sludge-drying outlet 114 and discharge guiding mechanism 30, this discharge guiding mechanism 30 comprises the discharge weir 31 that can regulate height.The sludge-drying crossed behind this discharge weir 31 is discharged from sludge-drying outlet 114.From sludge-drying outlet 114 discharge sludge-drying by with each stirring conveyor structure 20 respectively corresponding 2 the sludge-drying conveyer belts 500 as dried object output mechanism arranged carry.
The sensor 501 of the moisture content of the sludge-drying that detection is carried is respectively arranged with at 2 row sludge-drying conveyer belts 500.Sensor 501 can be such as that the weight of mensuration sludge-drying is to estimate the sensor of moisture content.The moisture content of sludge-drying represents the drying effect creating which kind of degree in each stirring conveyor structure 20.Sensor 501 also can be taken the sludge-drying of conveying on sludge-drying conveyer belt 500 and estimate moisture content by carrying out image procossing according to its color and/or shape (presence or absence of block).Sludge drying mechanism 10 possesses control device, and the moisture content based on the sludge-drying detected by sensor 501 controls the drying condition in each stirring conveyor structure 20.Sludge drying mechanism 10 is such as based on the moisture content adjustment height of discharge with weir 31 of sludge-drying, the quantity delivered from the mud of mud supply port 111, pressure etc. to the steam of hothouse supply.
As shown in Figure 3 and 4, between 2 stirring conveyor structures 20, be provided with the demarcation strip 51 as dried object mobile restriction unit.Demarcation strip 51 is set to the other end (being always set to the back side 117 from front 116) from the one end of the hothouse formed by housing 11 always, in the vertical direction, is set to upper end from the lower end of hothouse always.This demarcation strip 51 is arranged between a stirring conveyor structure 20 and other stirring conveyor structures 20 be adjacent, and thus, can be limited in mud in course of conveying and move to other stirring conveyor structures 20 be adjacent from a stirring conveyor structure 20.In addition, by arranging demarcation strip 51, mud can be limited move from the stirring conveyor structure 20 clipping demarcation strip 51 to another stirring conveyor structure 20, therefore, sludge drying mechanism 10 except carrying out whole mode of operations of the drying of mud in each stirring conveyor structure 20 with the same terms, can also operate only to use one of 2 stirring conveyor structures 20 to carry out the partial duty pattern of the drying of mud, or, can also to set the different drying condition (rotary speed of shaft 21 in each stirring conveyor structure 20, the moisture content of mud, the height etc. on discharge weir 31 described later) independent set model operate.
The hothouse formed by housing 11 is not divided into 2 spaces completely by this demarcation strip 51, and the space comprising the stirring conveyor structure 20 of a side is communicated with by being arranged at the window 511 of demarcation strip 51 with the space of the stirring conveyor structure 20 comprising the opposing party be adjacent.By utilizing this window 511 to be communicated with the space of the opposing party in the space of a side, the temperature in two spaces and/or humidity keep equal, can drying condition be made equal in two spaces.In addition, in the example in fig. 4, window 511 is rectangle and is provided with 5, but shape is not limited to rectangle, and its number is also both can also can be fewer than 5 than more than 5.Window 511 is arranged on the position higher than the height of the mud being stirred by stirring conveyor structure 20, carry.In the present embodiment, window 511 is arranged on the position set high than the highest order of the blade 212 being arranged at axle 211.Thus, can prevent the mud carried by stirring conveyor structure 20 from escaping to adjacent stirring conveyor structure 20 side by window 511 through demarcation strip 51.
As shown in Figure 5, the upper end of demarcation strip 51 is fixed on 121 of housing 11 above, and the bottom surface 120 of housing 11 is fixed in the lower end of demarcation strip 51.As mentioned above, the bottom surface 120 of housing 11 has shape along blade 212 and bending shape, the part of protuberance between the shaft 21 of the inner side of each stirring conveyor structure 20 in the bottom surface 120 of housing 11 is fixed in the lower end of demarcation strip 51, and vertical erects setting.In addition, fixing between demarcation strip 51 and housing 11 is undertaken by bolt etc., thereby, it is possible to unloaded from housing 11 by demarcation strip 51.In addition, after unloading demarcation strip 51, also can change the dried object mobile restriction unit of the various variation of following explanation.
Demarcation strip 51 is heated by heating unit.Specifically, being connected with heating wire in the inside of demarcation strip 51, heating demarcation strip 51 by carrying out energising to this heating wire.In addition, the stream of heating medium flowing also can being set at demarcation strip 51, circulating by making the thermal mediums such as warm water to heat demarcation strip 51 in stream.Stirred by stirring conveyor structure 20 while the mud carried also is promoted dry by the heating of the heat of demarcation strip 51.
Then, with reference to Fig. 6, Fig. 4, discharge weir 31 is described.As shown in Figure 4, it is axial vertical that discharge weir 31 is configured to each stirring conveyor structure 20, erects from bottom surface 120 at edge (front of the sludge-drying outlet 114) place of discharge side of bottom surface 120 of the housing 11 playing function as dried object receiving portion.
In figure 6, show discharge weir 31 from front, but discharge weir 31 is connected with elevating mechanism 32 in its upper end, left and right, by elevating mechanism 32 pull-up or fall.Carry the mud of coming to cross discharge weir 31 by stirring conveyor structure 20 and fall into sludge-drying outlet 114.In addition, in figure 6, the state that the height discharge volume that is different, each stirring conveyor structure 20 on 2 discharge weirs 31 is different is shown.
Discharge weir 31 is located position on the lower, then sludge-drying is more easily directed to sludge-drying outlet 114.Thus, when wanting the discharge rate of the sludge-drying increasing time per unit, discharge weir 31 being declined, when wanting the discharge rate of the sludge-drying reducing time per unit, making discharge weir 31 increase.By the lifting of this discharge with weir 31, the time that mud accepts the process of stirring and drying in the drying chamber can be adjusted.The time accepting the process of stirring and drying is longer, then the drying of mud is more thorough, lower from the moisture content of the sludge-drying of sludge drying mechanism 10 discharge, therefore, it is possible to make discharge weir 31 be elevated according to the moisture content of mud and/or the target moisture content of sludge-drying dropping into sludge drying mechanism 10.
Like this, sludge-drying is the axis of shaft 21 from (crossing discharge weir 31) direction that stirring and the conveying of stirring conveyor structure 20 are discharged.That is, in the sludge drying mechanism 10 of present embodiment, sludge-drying is not discharge on the direction vertical with the axis of shaft 21, but discharges on the throughput direction of mud at stirring conveyor structure.In other words, the outlet 114 of sludge-drying is not be arranged at side 118,119, but is arranged at front 116.Thus, the moisture content of the mud of discharge and/or can not be delayed and become uneven because of short distance, can obtain uniform sludge-drying.In addition, without the need to arranging the sludge-drying conveyer belt 500 being used for the sludge-drying of discharging from sludge drying mechanism 10 being transported to pulverizer etc. in the side of sludge drying mechanism 10, can realize saving space.
As mentioned above, sludge drying mechanism 10 according to the present embodiment, owing to possessing 2 groups of stirring conveyor structures 20 (4 row shaft 21), can dry jumbo mud, and mud can be limited move between each stirring conveyor structure 20, so can alleviate or prevent mud from producing biased and this unfavorable condition of drying of expecting cannot be carried out.In addition, in the above-described embodiment, as dried object mobile restriction unit, between stirring conveyor structure 20, be provided with the demarcation strip 51 forming fenestrate 511 on top, but dried object mobile restriction unit of the present invention is not limited thereto.Such as, although be provided with window 511 at demarcation strip 51, the space of stirring conveyor structure 20 side of a side is communicated with the space of stirring conveyor structure 20 side of the opposing party, this window 511 also can not be set and two spaces have been set to totally enclosed space.
Below, the various variation of dried object mobile restriction unit are described.Fig. 7 is the figure of the 1st variation that dried object mobile restriction unit is shown.In the figure 7, only schematically show housing 11 and dried object mobile restriction unit, omit the diagram of other structures.In this variation, dried object mobile restriction unit is multiple demarcation strip 52a ~ 52c.Each demarcation strip 52a ~ 52c is rectangle respectively, is fixed on the bottom surface 120 of housing 11 with their base.Between the discharge side and the front 116 of housing 11 of the demarcation strip 52a of discharge side, be provided with gap, between the supply side and the back side 117 of housing 11 of the demarcation strip 52c of supply side, be provided with gap, allow the movement of mud.Be about the reason of discharging side, at this, even if mud moves from stirring conveyor structure 20 side of stirring conveyor structure 20 side direction the opposing party of a side, bring large impact also can not to the drying of mud, reason about supply side is, even if create the movement of mud from stirring conveyor structure 20 side of stirring conveyor structure 20 side direction the opposing party of a side, due to the moisture content of this position mud is high and mobility is also high, so the amount of mud is also almost impartial both sides.In addition, also can not adopt in other variation in above-mentioned embodiment and following explanation discharging structure that side and supply side arrange dried object mobile restriction unit like this.
The height of the mud that the aspect ratio of each demarcation strip 52a ~ 52c is stirred by stirring conveyor structure 20, carry is slightly high.In this variation, the extreme higher position that the aspect ratio of demarcation strip 52a ~ 52c is arranged at the blade 212 of axle 211 is higher.Thus, can prevent the mud carried by stirring conveyor structure 20 from crossing demarcation strip 52a ~ 52c and escaping to adjacent stirring conveyor structure 20 side.In addition, in this variation, between each demarcation strip 52a ~ 52c, between demarcation strip 52a and the front 116 of housing 11, between demarcation strip 52c and the back side 117 of housing 11, there is gap respectively, thus, being communicated with of the space of the space of stirring conveyor structure 20 side of a side and stirring conveyor structure 20 side of the opposing party can be guaranteed, therefore, the height of demarcation strip 52a ~ 52c can arrive always housing 11 above 121, demarcation strip 52a ~ 52c also can the bottom surface 120 of housing 11 and above 121 places be fixed on housing 11.
Fig. 8 is the figure of the 2nd variation that dried object mobile restriction unit is shown.Also only schematically show housing 11 and dried object mobile restriction unit in fig. 8, omit the diagram of other structures.In this variation, dried object mobile restriction unit is the seam plate 53 of the seam with a large amount of longitudinal directions.Seam plate 53 is configured to the plate being divided into a large amount of thin strips, forms above-mentioned seam thus.Seam plate 53 is rectangles, is fixed on the bottom surface 120 of housing 11 with its base.The height of the mud that the aspect ratio of seam plate 53 is stirred by stirring conveyor structure 20, carry is slightly high.In this variation, it is higher that the aspect ratio of seam plate 53 is arranged at the extreme higher position of the blade 212 of axle 211.Thus, can prevent the mud carried by stirring conveyor structure 20 from crossing seam plate 53 and escaping to adjacent stirring conveyor structure 20 side.
In addition, in this variation, also there is seam in seam plate 53, thus, being communicated with of the space of the space of stirring conveyor structure 20 side of a side and stirring conveyor structure 20 side of the opposing party can be guaranteed, therefore, the height of seam plate 53 can arrive above 121 of housing 11 always, seam plate 53 also can the bottom surface 120 of housing 11 and above 121 places be fixed on housing 11.
Fig. 9 is the figure of the 3rd variation that dried object mobile restriction unit is shown.Also only schematically show housing 11 and dried object mobile restriction unit in fig .9, omit the diagram of other structures.In this variation, dried object mobile restriction unit is vertically erect setting multiple excellent 54.Between each rod of multiple excellent 54, guarantee there is gap.Multiple excellent 54 highly all identical, and parallel to each other, the part that the bottom surface 120 along the housing 11 of the centre of 2 stirring conveyor structures 20 is swelled is arranged, so be rectangle as a whole.Multiple excellent 54 bottom surfaces 120 being fixed on housing 11.The height of the mud that multiple aspect ratio of excellent 54 is stirred by stirring conveyor structure 20, carry is slightly high.In this variation, the extreme higher position that multiple aspect ratio of excellent 54 is arranged at the blade 212 of axle 211 is higher.Thus, can prevent the mud carried by stirring conveyor structure 20 from crossing multiple excellent 54 and escaping to adjacent stirring conveyor structure 20 side.
In addition, in this variation, also gap is there is between each rod of multiple excellent 54, thus, being communicated with of the space of the space of stirring conveyor structure 20 side of a side and stirring conveyor structure 20 side of the opposing party can be guaranteed, therefore, multiple height of excellent 54 can arrive always housing 11 above 121, multiple excellent 54 also can the bottom surface 120 of housing 11 and above 121 places be fixed on housing 11.
Figure 10 is the figure of the 4th variation that dried object mobile restriction unit is shown.Also only schematically show housing 11 and dried object mobile restriction unit in Fig. 10, omit the diagram of other structures.In this variation, dried object mobile restriction unit is arrange in the horizontal direction multiple excellent 55.Each rod of multiple excellent 55 adjoins one another.Multiple excellent 54 all extend to the back side 117 from the front 116 of housing 11, and parallel to each other, the part that the bottom surface 120 being piled up in the housing 11 of the centre of 2 stirring conveyor structures 20 is swelled, and are rectangle as a whole.Multiple excellent 55 front 116 and the back sides 117 being fixed on housing 11.The height of the mud that the aspect ratio of pile up multiple excellent 55 is stirred by stirring conveyor structure 20, carry is slightly high.In this variation, accumulation multiple excellent 55 aspect ratio to be arranged at the extreme higher position of the blade 212 of axle 211 higher.Thus, can prevent the mud carried by stirring conveyor structure 20 from crossing multiple excellent 55 and escaping to adjacent stirring conveyor structure 20 side.
Figure 11 is the figure of the 5th variation that dried object mobile restriction unit is shown.Also only schematically show housing 11 and dried object mobile restriction unit in fig. 11, omit the diagram of other structures.In this variation, dried object mobile restriction unit is 1 the movable demarcation strip 56 vertically erecting setting.The part that movable demarcation strip 56 swells along the bottom surface 120 of the housing 11 of the centre of 2 stirring conveyor structures 20 is arranged.Movable demarcation strip 56 can move (slip) on the guide rail 561 arranged along the bump of bottom surface 120.In the example of Figure 11, movable demarcation strip 56 is positioned at the middle body of mud throughput direction, limits the movement of mud by means of only this part.
Like this, in this variation, the high and easy part moved up in the side vertical with throughput direction of the viscosity that movable demarcation strip 56 is arranged on mud.Such as, when mud is addle mud, as shown in figure 11, movable demarcation strip 56 is arranged near the central authorities between front 116 and the back side 117.Thereby, it is possible to cut down the quantity of movable demarcation strip 56, time and cost can be cut down.In addition, can avoid without the need to the friction at part place of demarcation strip and/or the fault of attachment.In addition, in the 1st variation, each demarcation strip 52a ~ 52c also can be made movable along mud throughput direction.
Figure 12 is the figure of the 6th variation that dried object mobile restriction unit is shown.Also only schematically show housing 11 and dried object mobile restriction unit in fig. 12, omit the diagram of other structures.In this variation, dried object mobile restriction unit is the sheet material 57 of the multiple strips vertically hung down.Multiple sheet material 57 can be arranged in the guide rail 571 of above housing 11 121 in the part of the bottom surface 120 of the housing 11 of the centre along 2 stirring conveyor structures 20 protuberance and move (slip).Each sheet material of multiple sheet material 57 is rectangles, and its length is identical.Multiple sheet material 57 121 extends to the height of mud being stirred by stirring conveyor structure 20, carry above housing 11 always.In this variation, the lower end of multiple sheet material 57 is set in the position slightly higher than the extreme higher position of the blade 212 being arranged at axle 211.
When mud in the direction bias vertical with mud throughput direction, by making multiple sheet material 57 move from the position that the height grade of mud is high to the position that height grade is low, limit the movement of mud on the direction vertical with mud throughput direction.Thus, when the mud being stirred by stirring conveyor structure 20, carry exceedes common height and will move to adjacent stirring conveyor structure 20 1 side, mud can abut with the 121 multiple sheet materials 57 hung down above housing 11 and return, thus limits such movement.According to this variation, can with movement that the is simple and structure of cheapness restriction mud.
Figure 13 is the figure of the 7th variation that dried object mobile restriction unit is shown.This variation is the variation of the demarcation strip 51 for above-mentioned embodiment.In the above-described embodiment, the bottom surface 120 of housing 11 becomes shape along shaft 21 and bending shape, demarcation strip 51 is arranged at shaft 21 in the inner side of each stirring conveyor structure 20 bottom surface 120 part of swelling each other, and in this variation, the bottom surface 120 ' between stirring conveyor structure 20 is smooth.
Further, demarcation strip 51 ' have with in bottom along the mode of the shape of the shaft 21 of the both sides both sides shape of widening to the left and right.By this shape, the shape of hothouse can be made same with above-mentioned embodiment, mud can be prevented in the same manner as above-mentioned embodiment to be deposited in the corner of the bottom of the inner space (hothouse) of housing 11.Further, the demarcation strip 51 ' of this variation is also set to the structure heated from inside in the same manner as the demarcation strip 51 of above-mentioned embodiment.Thus, mud is heated with larger area, can promote drying.
Above, the various variation of the dried object mobile restriction unit of above-mentioned embodiment are illustrated.In above-mentioned embodiment, also various distortion can be carried out about the part outside dried object mobile restriction unit.Below, variation is described.
Figure 14 (a) is the top view of the sludge drying mechanism that variation is shown, Figure 14 (b) is the side view corresponding with Figure 14 (a).In the above-described embodiment, on housing 11,121 are provided with 2 corresponding with 2 stirring conveyor structures 20 respectively mud supply ports 111, drop into mud from mud supply port 111 corresponding respectively to each stirring conveyor structure 20.In this variation, sludge drying mechanism 10 ' 121 possesses 1 the mud supply port 111 ' shared by 2 stirring conveyor structures 20 in the above.Further, in the hothouse under mud supply port 111 ', mud reservoir 123 is formed by the supply weir 122 arranged continuously from right flank 118 to left surface 119.Mud reservoir 123 be can't help demarcation strip 51 and is separated, and thus, is formed continuously accordingly with 2 stirring conveyor structures 20 from right flank 118 to left surface 119.In addition, the through supply weir 122 of axle 211 of shaft 21 and pass through mud reservoir 123, but blade 212 is not set in this part.The upper end on supply weir 122 is levels, is phase co-altitude from right flank 118 to left surface 119.
By arranging such mud reservoir 123, the mud being supplied to hothouse from mud supply port 111 ' temporarily lodges in mud reservoir 123.Increased by the amount lodging in the mud of mud reservoir 123 and cross supply weir 122, thus supplying mud to the stirring conveyor structure 20 with blade 212.The mud of firm supply contains many moisture and viscosity is low, so the surface lodging in the mud of mud reservoir 123 is smooth, thus, the amount of crossing the mud on supply weir 122 is also all equivalent from right flank 118 to left surface 119.That is, although mud supply port 111 ' is 1, the amount to the mud of 2 stirring conveyor structures 20 supplies is equal, in this, can drying condition be made equal in 2 stirring conveyor structures 20.In addition, according to this variation, when sludge drying mechanism exists multiple stirring conveyor structure 20, also without the need to distributing mud equally by stirring conveyor structure 20 before hothouse supply mud, in addition, that also can avoid by the unequal aridity caused of such distribution is unequal.In addition, this supply weir 122 makes the mud homogenising make it to the unit of conveyor side movement on the orientation of stirring conveyor structure 20 from the supply of mud supply port 111 ', is equivalent to " supply adjustment unit " of the present invention.
Figure 15 (a) is the top view of the sludge drying mechanism that another variation is shown, Figure 15 (b) is the side view corresponding with Figure 15 (a), and Figure 15 (c) is the C-C sectional view of Figure 15 (b).In the example of Figure 14, under mud supply port 111 ', the mode erected from the bottom of housing 2 is provided with the supply weir 122 from right flank 118 to left surface 119 upper end level, is accumulated by this supply weir 122 and be supplied to the mud of hothouse from mud supply port 111 ' and be formed with mud reservoir 123.In the example of Figure 15, replace supply weir 122 and adjustment plate 122 ' is set above shaft 21.
As shown in Figure 15 (c), adjustment plate 122 ' is connected with not shown elevating mechanism in its upper end, left and right in the same manner as weir 31 with discharge, is mentioned or fall by this elevating mechanism.The lower end of adjustment plate 122 ' has the shape that the part corresponding with shaft 21 cave on circular arc in the mode on the surface along shaft 21.
In addition, in the example of Figure 15, also each shaft 21 is provided with blade 212 at the supply side of adjustment plate 122 '.Thus, the mud being supplied to hothouse from mud supply port 111 ' is transported to discharge side by the blade 212 rotated, but limit movement to discharge side by adjustment plate 122 ', the lower end of this adjustment plate 122 ' drill-through (by between the lower end that adjusts plate 122 ' and the bottom of housing 2) and be transported to discharge side.
The height of the lower end of adjustment plate 122 ', namely to adjust distance between the lower end of plate 122 ' and the bottom of housing 2 on the direction vertical with throughput direction, direction that namely multiple stirring conveyor structure 20 arranges be uniform.Thus, about multiple stirring conveyor structure 20, the amount homogenising being transported to the mud of discharge side by the below of adjustment plate 122 ' can be made.The height adjusting plate 122 ' by adjustment to the amount of the mud of discharge side supply adjusts.This adjustment plate 122 ' makes the mud homogenising make it to the unit of conveyor side movement on the orientation of stirring conveyor structure 20 from the supply of mud supply port 111 ', is equivalent to " supply adjustment unit " of the present invention.
Demarcation strip 51 reaches the face of the discharge side of adjustment plate 122 ' always.Thus, the mud come by demarcation strip 51 behind the below of restricted passage adjustment plate 122 ' is moved to adjacent stirring conveyor structure 20.
According to the example of Figure 15, with the bottom at housing 2 erect supply weir 122 is set situation compared with, what the mud being supplied to mud reservoir 123 from mud supply port 111 ' can not be trapped in supply weir 122 in mud reservoir 123 erects part.That is, can move downwards, so can by be transported to discharge side between adjustment plate 122 ' and the bottom of housing 2 because of the weight of deadweight and the mud newly supplied from top after the mud limiting to the movement of discharge side by adjustment plate 122 '.Thus, in the example of Figure 15, no longer there is the part of sludge retention at supply side.
In addition, in the above-described embodiment, the sludge drying mechanism 10 with 2 stirring conveyor structures 20 is illustrated, but stirring conveyor structure 20 also can be more than 3.In addition, in the above-described embodiment, be one group with 2 shafts 21 and constitute stirring conveyor structure 20, but also can form 1 stirring conveyor structure 20 by 1 or 3 shafts 21.
In addition, shaft is also not limited to above-mentioned embodiment.Especially, carrying as long as the blade being fixed on axle can stir mud by rotating, being not limited to the shape of above-mentioned embodiment.Figure 16 is the figure of the variation that shaft is shown, is the A-A sectional view of Fig. 3.The shaft 21 of this variation is equally spaced fixed with 4 blades 212 in the circumference of axle 211.This blade 211 comprises the tube be connected with axle 211 and the plate becoming blade installed on the top of tube.
Claims (13)
1. a drying device, stirs and carries dried object to make it dry, it is characterized in that possessing:
Multiple stirring conveyor structure, it stirring by making shaft rotate, carrying dried object; With
Dried object mobile restriction unit, it is arranged between described multiple stirring conveyor structure, for limiting described dried object from a stirring conveyor structure to the movement of other adjacent stirring conveyor structures.
2. drying device according to claim 1, is characterized in that,
The space comprising a stirring conveyor structure is communicated with the space comprising other adjacent stirring conveyor structures.
3. drying device according to claim 1 and 2, is characterized in that,
Described dried object mobile restriction unit, allows the described movement of described dried object at the supply side of described dried object.
4. the drying device according to any one of claims 1 to 3, is characterized in that,
Described dried object mobile restriction unit can move on the throughput direction of described dried object at described stirring conveyor structure.
5. the drying device according to any one of Claims 1 to 4, is characterized in that,
Also possesses the heating unit heating described dry thing mobile restriction unit.
6. the drying device according to any one of Claims 1 to 5, is characterized in that,
Also possess control device, this control device, based on the moisture content by the dried described dried object of described stirring conveyor structure, controls described multiple stirring conveyor structures drying condition separately separately.
7. the drying device according to any one of claim 1 ~ 6, is characterized in that,
At described stirring conveyor structure to the throughput direction of described dried object being discharged the described dried object of being carried by described stirring conveyor structure.
8. the drying device according to any one of claim 1 ~ 7, is characterized in that,
The below of described stirring conveyor structure is provided with dried object receiving portion,
The height-adjustable discharge weir erected from described dried object receiving portion is provided with in the discharge side of described stirring conveyor structure.
9. drying device according to claim 8, is characterized in that,
Described discharge weir can separately regulate height for described multiple stirring conveyor structure.
10. the drying device according to any one of claim 1 ~ 9, is characterized in that,
Be provided with supply adjustment unit, this supply adjustment unit makes the described dried object homogenising in the orientation of described stirring conveyor structure be supplied in described drying device, and its discharge side to described stirring conveyor structure is moved.
11. drying devices according to claim 10, is characterized in that,
Also possess reservoir, this reservoir accumulates the described dried object be supplied in described drying device, and have upper end level as described in supply the supply weir of adjustment unit,
Described dried object behind the described upper end on described supply weir is crossed to described multiple stirring conveyor structure supply.
12. drying devices according to claim 10, is characterized in that,
The adjustment plate that described supply adjustment unit is arranged above described stirring conveyor structure,
Its discharge side to described stirring conveyor structure is carried by the below of described adjustment plate by the described dried object be supplied in described drying device.
13. 1 kinds of drying systems, is characterized in that possessing:
Drying device according to any one of claim 1 ~ 12;
To the dried object feed mechanism of described drying device supply dried object; And
The dried object output mechanism of dried dried object is discharged from described drying device.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014108232 | 2014-05-26 | ||
| JP2014-108232 | 2014-05-26 | ||
| JP2015095950A JP2016006371A (en) | 2014-05-26 | 2015-05-08 | Drier and drying system |
| JP2015-095950 | 2015-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105276958A true CN105276958A (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510266460.3A Withdrawn CN105276958A (en) | 2014-05-26 | 2015-05-22 | Drying device and drying system |
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| Country | Link |
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| CN (1) | CN105276958A (en) |
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| CN110092564A (en) * | 2018-01-30 | 2019-08-06 | 水翼株式会社 | Drying device and drying system |
| CN112516834A (en) * | 2020-11-13 | 2021-03-19 | 湖北宇浩高科新材料有限公司 | Preparation system and preparation process of carbon nanotube slurry with electric and heat conduction functions |
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