CN113108569B - Sludge dryer - Google Patents
Sludge dryer Download PDFInfo
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- CN113108569B CN113108569B CN202110552708.8A CN202110552708A CN113108569B CN 113108569 B CN113108569 B CN 113108569B CN 202110552708 A CN202110552708 A CN 202110552708A CN 113108569 B CN113108569 B CN 113108569B
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- shoveling plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
- F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
- F26B11/0486—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum the elements being held stationary, e.g. internal scraper blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a sludge dryer, which comprises a front support, a rear support, a roller arranged between the front support and the rear support, a first driving mechanism for driving the roller to rotate, a shoveling plate assembly and a second driving mechanism, wherein the first driving mechanism is arranged on the front support; the shoveling plate component comprises a first connecting piece, a second connecting piece and a plurality of shoveling plates connected between the first connecting piece and the second connecting piece, and is movably matched in the roller; the shoveling plate assembly has a first state and a second state, when the shoveling plate assembly is in the first state, the first connecting piece and the second connecting piece are locked at the front end and the rear end of the roller, and when the shoveling plate assembly is in the second state, the first connecting piece is locked at the front support, and the second connecting piece is locked at the rear support; the second driving mechanism is used for driving the shoveling plate assembly to be switched between a first state and a second state. The invention can clean the sludge adhered on the inner wall of the roller without stopping operation, does not need manual cleaning and interrupting the operation of equipment, and ensures the continuity of drying operation.
Description
Technical Field
The invention relates to the technical field of sludge treatment, in particular to a sludge dryer.
Background
Sludge is a solid precipitated material produced by water and sewage treatment processes. With the enhancement of national energy conservation and emission reduction, the improvement of national environmental protection consciousness and the increasing of the output of municipal sludge, the problems of sludge disposal, development and utilization become important issues of national environmental protection regulation. The development of the sludge drying treatment technology makes the sludge agriculture, the sludge fuel and the sludge incineration possible. The perfection and innovation of the sludge drying technology and the sludge dryer directly promote the development of sludge treatment means, expand the selection range of the sludge treatment means and ensure the sludge treatment means to be more and more reliably ensured in the aspects of safety, reliability, sustainability and the like.
Drum-type sludge drying machine is a common sludge drying equipment, and its theory of operation does: the sludge enters the material guide plate in the dryer through the chute by the feeder, and along with the rotation of the roller, the shoveling plate on the inner wall of the roller shovels the sludge and throws the sludge downwards to form a material curtain, so that the material curtain is repeated for a plurality of times until the sludge is thrown to the discharge hole of the roller, and the high-temperature airflow passes through the material guide plate and heats and evaporates the sludge in the throwing process of the roller, so that the sludge is dried.
However, when the drum-type sludge dryer is in operation, sludge is easily adhered to the inner wall of the drum, and if the sludge adhered to the inner wall of the drum is too thick, sludge is thrown by the shoveling plates, so that the drying effect is affected, and therefore, the sludge on the inner wall of the drum needs to be cleaned regularly. At present, most of drum-type sludge dryers need the inside that artifical entering cylinder was cleared up to the mud of clearance cylinder inner wall, and workman's intensity of labour is bigger, and the inefficiency of clearance very delays work.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the sludge dryer, which is used for cleaning the sludge adhered to the inner wall of the roller under the condition of non-stop operation without manual cleaning or interruption of the operation of equipment, so that the continuity of drying operation is ensured.
The invention provides a sludge dryer, which comprises a front support, a rear support, a roller which is rotatably arranged between the front support and the rear support and is inclined in a manner that the front part is low and the rear part is high, and a first driving mechanism for driving the roller to rotate, wherein the rear support is provided with a feed inlet and an air inlet which are respectively communicated with the rear end of the roller, and the front support is provided with a discharge outlet and an air outlet which are respectively communicated with the front end of the roller;
the device also comprises a shoveling plate component and a second driving mechanism;
the shoveling plate assembly comprises a first connecting piece, a second connecting piece and a plurality of shoveling plates which are distributed annularly and connected between the first connecting piece and the second connecting piece, the shoveling plate assembly is movably matched in the roller, and the outer edge of each shoveling plate is attached to the inner wall of the roller;
the shoveling plate assembly has a first state and a second state, when the shoveling plate assembly is in the first state, the first connecting piece and the second connecting piece are locked at the front end and the rear end of the roller respectively, when the shoveling plate assembly is in the second state, the first connecting piece is locked at the front support, and the second connecting piece is locked at the rear support;
the second driving mechanism is used for driving the shoveling plate assembly to be switched between a first state and a second state.
Furthermore, the first connecting piece comprises a plugging plate and a first convex ring arranged on the front side of the plugging plate, the outer periphery of the plugging plate is attached to the inner wall of the roller, a plurality of through holes are circumferentially distributed on the wall of the roller close to the front side of the plugging plate, the discharge port is arranged below each through hole, the air outlet is arranged above each through hole, the front end of each shoveling plate is connected to the rear side of the plugging plate, a first outer gear ring is arranged on the outer peripheral surface of the first convex ring close to the front end of the first convex ring, a first inner gear ring is arranged on the inner peripheral surface of the roller close to the front end of the first convex ring, a second inner gear ring is arranged in the front support and in front of the roller, and the first outer gear ring can be respectively meshed with one of the first inner gear ring and the second inner gear ring;
the second connecting piece comprises a connecting ring and a second convex ring arranged on the rear side of the connecting ring, the outer periphery of the connecting ring is attached to the inner wall of the roller, the rear end of each shoveling plate is connected to the front side of the connecting ring, a second outer gear ring is arranged on the outer peripheral surface of the second convex ring close to the connecting ring, a third outer gear ring is arranged on the outer peripheral surface of the second convex ring close to the rear end of the second convex ring, a third inner gear ring capable of being meshed with the second outer gear ring is arranged on the inner peripheral surface of the roller close to the rear end of the roller, and a fourth inner gear ring capable of being meshed with the third outer gear ring is arranged on the rear support seat behind the roller;
when the shoveling plate assembly is in a first state, the first outer gear ring is meshed with the first inner gear ring and separated from the second inner gear ring, the second outer gear ring is meshed with the third inner gear ring, the third outer gear ring is separated from the fourth inner gear ring, when the shoveling plate assembly is in a second state, the first outer gear ring is separated from the first inner gear ring and meshed with the second inner gear ring, the second outer gear ring is separated from the third inner gear ring, and the third outer gear ring is meshed with the fourth inner gear ring.
Furthermore, the second driving mechanism comprises a telescopic push rod fixed on the front side of the front support, and an output shaft of the telescopic push rod is in rotation limit connection with the first connecting piece and used for driving the shoveling plate assembly to axially slide in the roller, so that the shoveling plate assembly is switched between a first state and a second state.
Furthermore, a limiting cavity is formed in the second convex ring, a rotating block is arranged in the limiting cavity, and an output shaft of the telescopic push rod extends into the limiting cavity and is fixedly connected with the rotating block.
Furthermore, the inner edge of each shoveling plate is fixedly connected with a spiral reinforcing rib which extends spirally along the axial direction.
Further, first actuating mechanism includes the motor cabinet, is fixed in motor, driving gear and driven gear on the motor cabinet, the driving gear coaxial arrangement in on the output shaft of motor, driven gear coaxial arrangement in the periphery of cylinder, driving gear and driven gear meshing.
Furthermore, guide wheel mechanisms are arranged below the roller and on two sides of the first driving mechanism, each guide wheel mechanism comprises a guide wheel seat and two guide wheels rotatably mounted on the guide wheel seat, and the two guide wheels are symmetrically arranged below two sides of the roller and are respectively in rolling connection with the outer peripheral surface of the roller.
Furthermore, the outer side of the feeding port is connected with a screw conveyor, and the inner side of the feeding port is connected with an inclined sliding groove.
Furthermore, an air heating furnace is connected to the outer side of the air inlet.
The invention has the following beneficial effects:
when the shoveling plate assembly is in the first state, the sludge dryer is in a working state, at the moment, the first connecting piece and the second connecting piece at the two ends of the shoveling plate are respectively locked at the front end and the rear end of the roller, the roller can drive the shoveling plate assembly to rotate along with the roller, after sludge enters the roller from the feed inlet, the shoveling plate shovels the sludge and sprays the sludge downwards to form a material curtain, meanwhile, high-temperature airflow is introduced into the roller through the air inlet, the sludge passes through the high-temperature airflow in the process of spraying the sludge by the roller and is heated, evaporated and dried, the drying is repeated for many times, the dried sludge is discharged from the discharge port of the roller, and the generated tail gas is discharged from the air outlet.
After drive flight subassembly to the second state, sludge drying machine gets into clean state, at this moment, first connecting piece and second connecting piece and cylinder separation, first connecting piece locks in preceding support, the second connecting piece locks in the back support, flight subassembly is fixed, when the cylinder rotates, relative rotation takes place between flight subassembly and the cylinder, and then scrape the pine through the mud of flight with adhesion on the cylinder inner wall, mud is scraped the pine back, redrive flight subassembly to first state again, flight subassembly rotates along with the cylinder again, not hard up mud on the cylinder inner wall can drop automatically, and then continue the mud stoving operation.
Therefore, the mud of adhesion on the cylinder inner wall can be cleared up under the condition of not stopping the operation to this application, need not artifical clearance, need not the operation of interrupt device, has ensured the continuity of stoving operation.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of an external structure of an embodiment of the present invention;
FIG. 2 is a longitudinal cross-sectional view of an embodiment of the present invention (the shoveling plate assembly in a first state);
FIG. 3 is a longitudinal cross-sectional view of an embodiment of the present invention (the screed plate assembly is in a second state);
fig. 4 is a transverse sectional view of the inside of the drum according to an embodiment of the present invention.
In the drawing, 100-front support; 110-a discharge port; 120-air outlet; 130-a second annulus gear; 200-a rear support; 210-a feed inlet; 211-a screw conveyor; 212-inclined chute; 220-air inlet; 221-air heating furnace; 230-fourth ring gear; 300-a roller; 310-a through hole; 320-a first ring gear; 330-third ring gear; 400-a first drive mechanism; 410-a motor base; 420-a motor; 430-a driving gear; 440-a driven gear; 500-a shoveling plate component; 510-a first connector; 511-plugging plate; 512-first convex ring; 513 — a first outer gear ring; 520-a second connector; 521-a connecting ring; 522-a second bulge loop; 523-second outer ring gear; 524-a third outer gear ring; 530-shovelling plate; 540-spiral ribbing; 600-a second drive mechanism; 610-a telescopic push rod; 620-a spacing cavity; 630-a turning block; 700-guide wheel mechanism; 710-a guide wheel seat; 720-guide wheel.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
As shown in fig. 1 to 4, an embodiment of the present invention provides a sludge dryer, which includes a front support 100, a rear support 200, a drum 300 rotatably installed between the front support 100 and the rear support 200 and having a low front and a high rear, a first driving mechanism 400 for driving the drum 300 to rotate, a shoveling plate assembly 500, and a second driving mechanism 600.
Specifically, first actuating mechanism 400 includes motor cabinet 410, is fixed in motor 420, driving gear 430 and driven gear 440 on motor cabinet 410, and driving gear 430 coaxial arrangement is on motor 420's output shaft, and driven gear 440 coaxial arrangement locates the periphery of cylinder 300, and driving gear 430 and driven gear 440 mesh, can drive the cylinder 300 through motor 420 like this and rotate.
The rear supporter 200 is provided with a feed inlet 210 and an air inlet 220 respectively communicated with the rear end of the drum 300, and the front supporter 100 is provided with a discharge outlet 110 and an air outlet 120 respectively communicated with the front end of the drum 300. The outer side of the air inlet 220 is connected to an air heating furnace 221 for introducing high-temperature air into the drum 300. The outer side of the feed inlet 210 is connected with a screw conveyor 211, the inner side of the feed inlet 210 is connected with an inclined chute 212, and during feeding, sludge is conveyed to the feed inlet 210 through the screw conveyor 211 and then slides into the roller 300 through the inclined chute 212 on the inner side of the feed inlet 210.
The shoveling plate assembly 500 comprises a first connecting piece 510, a second connecting piece 520 and a plurality of shoveling plates 530 which are distributed annularly and connected between the first connecting piece 510 and the second connecting piece 520, the shoveling plate assembly 500 is movably adapted in the roller 300, and the outer edge of each shoveling plate 530 is attached to the inner wall of the roller 300.
The blade assembly 500 has a first state (shown in fig. 2) in which the first link 510 and the second link 520 are locked to the front and rear ends of the drum 300, respectively, and a second state (shown in fig. 3) in which the first link 510 is locked to the front support 100 and the second link 520 is locked to the rear support 200, respectively.
Specifically, referring to fig. 2 and 3, the first connecting member 510 includes a blocking plate 511 and a first protruding ring 512 disposed on the front side of the blocking plate 511, the outer periphery of the blocking plate 511 is attached to the inner wall of the drum 300, a plurality of through holes 310 are circumferentially distributed on the drum wall of the drum 300 near the front side of the blocking plate 511, the discharge port 110 is disposed below each through hole 310, the air outlet 120 is disposed above each through hole 310, the front end of each shoveling plate 530 is connected to the rear side of the blocking plate 511, a first outer gear ring 513 is disposed on the outer peripheral surface of the first protruding ring 512 near the front end thereof, a first inner gear ring 320 is disposed on the inner peripheral surface of the drum 300 near the front end thereof, a second inner gear ring 130 is disposed in the front support 100 in front of the drum 300, and the first outer gear ring 513 can be respectively engaged with one of the first inner gear ring 320 and the second inner gear ring 130.
The second connector 520 comprises a connecting ring 521 and a second convex ring 522 arranged at the rear side of the connecting ring 521, the outer periphery of the connecting ring 521 is attached to the inner wall of the drum 300, the rear end of each shoveling plate 530 is connected to the front side of the connecting ring 521, the second convex ring 522 is provided with a second external gear ring 523 near the outer peripheral surface of the connecting ring 521, the outer peripheral surface of the second convex ring 522 near the rear end is provided with a third external gear ring 524, the inner peripheral surface of the drum 300 near the rear end is provided with a third internal gear ring 330 capable of being meshed with the second external gear ring 523, and the rear support 200 is provided with a fourth internal gear ring 230 capable of being meshed with the third external gear ring 524 behind the drum 300.
Referring to fig. 2, when the shoveling plate assembly 500 is in the first state, the first outer gear 513 is engaged with the first inner gear 320 and separated from the second inner gear 130, the second outer gear 523 is engaged with the third inner gear 330, and the third outer gear 524 is separated from the fourth inner gear 230, so that the first connector 510 and the second connector 520 are locked to the front and rear ends of the drum 300, respectively.
Referring to fig. 3, when the shoveling plate assembly 500 is in the second state, the first outer gear 513 is separated from the first inner gear 320 and engaged with the second inner gear 130, the second outer gear 523 is separated from the third inner gear 330, and the third outer gear 524 is engaged with the fourth inner gear 230, so that the first connector 510 is locked to the front mount 100 and the second connector 520 is locked to the rear mount 200.
The second driving mechanism 600 is used to drive the blade assembly 500 to switch between the first state and the second state.
Specifically, referring to fig. 2 and 3, the second driving mechanism 600 includes a telescopic push rod 610 fixed to the front side of the front support 100, and an output shaft of the telescopic push rod 610 is rotatably and limitedly connected to the first connecting member 510 to drive the shoveling plate assembly 500 to axially slide on the drum 300, so that the shoveling plate assembly 500 is switched between the first state and the second state, where the telescopic push rod 610 may specifically be a pneumatic, hydraulic or electric push rod.
Because the telescopic push rod 610 is fixed, the output shaft of the telescopic push rod 610 is in rotation limit connection with the first connecting piece 510, so that the shoveling plate assembly 500 can be locked with the roller 300 and can rotate along with the roller 300, the telescopic push rod 610 and the first connecting piece 510 rotate relatively to prevent the telescopic push rod 610 from locking the shoveling plate assembly 500, specifically, a limit cavity 620 is arranged in the second convex ring 522, a rotating block 630 is arranged in the limit cavity 620, and the output shaft of the telescopic push rod 610 extends into the limit cavity 620 and is fixedly connected with the rotating block 630, so that the shoveling plate assembly 500 can rotate relative to the telescopic push rod 610, and meanwhile, the telescopic push rod 610 can stretch to push and pull the shoveling plate assembly 500.
As shown in fig. 2, when the shoveling plate assembly 500 is in the first state, the first connecting member 510 and the second connecting member 520 are respectively locked at the front end and the rear end of the drum 300, and the sludge dryer is in the working rotation state, as shown in fig. 3, when sludge adhered on the inner wall of the drum 300 needs to be cleaned, the drum 300 temporarily stops rotating, the telescopic push rod 610 pulls the shoveling plate assembly 500 forward to slide forward, so that the first outer gear ring 513 slides forward out of the first inner gear ring 320 and transitions to a rotation state engaged with the second inner gear ring 130, the second outer gear ring 523 slides forward out of the third inner gear ring 330, the third outer gear ring 524 slides forward to a rotation state engaged with the fourth inner gear ring 230, at this time, the shoveling plate assembly 500 is in the second state that the first connecting member 510 is locked at the front support 100 and the second connecting member 520 is locked at the rear support 200, and then the drum 300 is started to rotate, that sludge on the inner wall of the drum 300 can be scraped by the shoveling plate 530, when the clapper assembly 500 is returned to the first state, the rotation of the roller 300 is stopped again, and the clapper assembly 500 is pushed backwards by the telescopic push rod 610.
To increase the strength and rigidity of the entire flight assembly 500, a helical rib 540 extending helically in the axial direction is fixedly connected to the inner edge of each flight 530.
In order to improve the stability of the rotation of the roller 300, guide wheel mechanisms 700 are disposed below the roller 300 and on both sides of the first driving mechanism 400, each guide wheel mechanism 700 includes a guide wheel base 710 and two guide wheels 720 rotatably mounted on the guide wheel base 710, and the two guide wheels 720 are symmetrically disposed below both sides of the roller 300 and are respectively in rolling connection with the outer circumferential surface of the roller 300.
To sum up, when the shoveling plate assembly 500 is in the first state, the sludge dryer is in a working state, at this time, the first connecting piece 510 and the second connecting piece 520 at the two ends of the shoveling plate 530 are respectively locked at the front end and the rear end of the roller 300 and are respectively locked at the front end and the rear end of the roller 300, the roller 300 rotates to drive the shoveling plate assembly 500 to rotate along with the roller 300, after sludge enters the roller 300 from the feed port 210, the shoveling plate 530 shovels the sludge and sprays the sludge downwards to form a material curtain, meanwhile, high-temperature air flow is introduced into the roller 300 through the air inlet, and in the process of spraying the sludge by the roller 300, the high-temperature air flow passes through the sludge and heats, evaporates and dries the sludge, so that the process is repeated for many times, the dried sludge is discharged from the discharge port 110 of the roller 300, and the generated tail gas is discharged from the air outlet 120.
After the shoveling plate assembly 500 is driven to the second state, the sludge dryer enters a cleaning state, at the moment, the first connecting piece 510 and the second connecting piece 520 are separated from the roller 300, the first connecting piece 510 is locked on the front support 100, the second connecting piece 520 is locked on the rear support 200, the shoveling plate assembly 500 is fixed, when the roller 300 rotates, the shoveling plate assembly 500 and the roller 300 rotate relatively, further sludge adhered to the inner wall of the roller 300 is scraped loose through the shoveling plate 530, after the sludge is scraped loose, the shoveling plate assembly 500 is driven to the first state again, the shoveling plate assembly 500 rotates along with the roller 300, the loose sludge on the inner wall of the roller 300 can automatically drop, and further sludge drying operation is continued.
Therefore, the sludge adhered to the inner wall of the roller 300 can be cleaned under the condition of non-stop operation without manual cleaning or interruption of the operation of equipment, and the continuity of drying operation is ensured.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being covered by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a sludge drying machine, include preceding support, after-poppet, rotate install in before and between support and the after-poppet low back high inclination's cylinder and be used for the drive cylinder pivoted a actuating mechanism, be equipped with on the after-poppet respectively with the feed inlet and the air intake of the rear end intercommunication of cylinder, be equipped with on the preceding support respectively with the discharge gate and the air outlet of the front end intercommunication of cylinder, its characterized in that:
the device also comprises a shoveling plate component and a second driving mechanism;
the shoveling plate assembly comprises a first connecting piece, a second connecting piece and a plurality of shoveling plates which are annularly distributed and connected between the first connecting piece and the second connecting piece, the shoveling plate assembly is movably matched in the roller, and the outer edge of each shoveling plate is attached to the inner wall of the roller;
the shoveling plate assembly is provided with a first state and a second state, when the shoveling plate assembly is in the first state, the first connecting piece and the second connecting piece are respectively locked at the front end and the rear end of the roller, when the shoveling plate assembly is in the second state, the first connecting piece is locked at the front support, and the second connecting piece is locked at the rear support;
the second driving mechanism is used for driving the shoveling plate assembly to be switched between a first state and a second state;
the first connecting piece comprises a plugging plate and a first convex ring arranged on the front side of the plugging plate, the outer periphery of the plugging plate is attached to the inner wall of the roller, a plurality of through holes are circumferentially distributed on the wall of the roller close to the front side of the plugging plate, the discharge port is arranged below each through hole, the air outlet is arranged above each through hole, the front end of each shoveling plate is connected to the rear side of the plugging plate, a first outer gear ring is arranged on the outer peripheral surface of the first convex ring close to the front end of the first convex ring, a first inner gear ring is arranged on the inner peripheral surface of the roller close to the front end of the roller, a second inner gear ring is arranged in the front support and positioned in front of the roller, and the first outer gear ring can be respectively meshed with one of the first inner gear ring and the second inner gear ring;
the second connecting piece comprises a connecting ring and a second convex ring arranged on the rear side of the connecting ring, the outer periphery of the connecting ring is attached to the inner wall of the roller, the rear end of each shoveling plate is connected to the front side of the connecting ring, a second outer gear ring is arranged on the outer peripheral surface of the second convex ring close to the connecting ring, a third outer gear ring is arranged on the outer peripheral surface of the second convex ring close to the rear end of the second convex ring, a third inner gear ring capable of being meshed with the second outer gear ring is arranged on the inner peripheral surface of the roller close to the rear end of the roller, and a fourth inner gear ring capable of being meshed with the third outer gear ring is arranged on the rear support seat behind the roller;
when the shoveling plate assembly is in a first state, the first outer gear ring is meshed with the first inner gear ring and separated from the second inner gear ring, the second outer gear ring is meshed with the third inner gear ring, the third outer gear ring is separated from the fourth inner gear ring, when the shoveling plate assembly is in a second state, the first outer gear ring is separated from the first inner gear ring and meshed with the second inner gear ring, the second outer gear ring is separated from the third inner gear ring, and the third outer gear ring is meshed with the fourth inner gear ring.
2. The sludge dryer as claimed in claim 1, wherein: the second driving mechanism comprises a telescopic push rod fixed on the front side of the front support, and an output shaft of the telescopic push rod is in rotation limit connection with the first connecting piece and used for driving the shoveling plate assembly to axially slide in the roller, so that the shoveling plate assembly is switched between a first state and a second state.
3. The sludge dryer as claimed in claim 2, wherein: a limiting cavity is formed in the second convex ring, a rotating block is arranged in the limiting cavity, and an output shaft of the telescopic push rod extends into the limiting cavity and is fixedly connected with the rotating block.
4. The sludge dryer as claimed in claim 1, wherein: the inner edge of each shoveling plate is fixedly connected with a spiral reinforcing rib which extends spirally along the axial direction.
5. The sludge dryer as claimed in claim 1, wherein: the first driving mechanism comprises a motor base, a motor fixed on the motor base, a driving gear and a driven gear, the driving gear is coaxially installed on an output shaft of the motor, the driven gear is coaxially arranged on the periphery of the roller, and the driving gear is meshed with the driven gear.
6. The sludge dryer as claimed in claim 5, wherein: the guide wheel mechanisms are arranged on two sides of the first driving mechanism below the roller and comprise guide wheel seats and two guide wheels rotatably mounted on the guide wheel seats, and the two guide wheels are symmetrically arranged below the two sides of the roller and are respectively in rolling connection with the outer peripheral surface of the roller.
7. The sludge dryer as claimed in claim 1, wherein: the outer side of the feed inlet is connected with a screw conveyor, and the inner side of the feed inlet is connected with an inclined chute.
8. The sludge dryer as claimed in claim 1, wherein: and the outer side of the air inlet is connected with an air heating furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110552708.8A CN113108569B (en) | 2021-05-20 | 2021-05-20 | Sludge dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110552708.8A CN113108569B (en) | 2021-05-20 | 2021-05-20 | Sludge dryer |
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| Publication Number | Publication Date |
|---|---|
| CN113108569A CN113108569A (en) | 2021-07-13 |
| CN113108569B true CN113108569B (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110552708.8A Active CN113108569B (en) | 2021-05-20 | 2021-05-20 | Sludge dryer |
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