CN219474235U - Feeding and scattering screw conveyor of roller dryer - Google Patents
Feeding and scattering screw conveyor of roller dryer Download PDFInfo
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- CN219474235U CN219474235U CN202320091493.9U CN202320091493U CN219474235U CN 219474235 U CN219474235 U CN 219474235U CN 202320091493 U CN202320091493 U CN 202320091493U CN 219474235 U CN219474235 U CN 219474235U
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- polytetrafluoroethylene
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- dryer
- floating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to a feeding and scattering screw conveyor of a roller dryer, which comprises a driving unit, a driving base, a screw shell, a screw sealing cylinder, a driving screw blade shaft, a driven screw blade shaft and a dryer, wherein the driving unit is arranged on the driving base, one end of the screw shell is arranged on the driving base, the other end sequentially penetrates through the screw sealing cylinder and the dryer, and a floating sealing ring assembly is arranged between the screw sealing cylinder and the dryer. The utility model has the advantages that: the double-shaft scattering screw conveyor can ensure continuous and stable feeding of the roller dryer, the sealing adopts a floating compensation type sealing ring structure, the sealing at the feeding cylinder is ensured to be tight and not to leak, the double-shaft blades are arranged in a staggered manner, and the materials are uniformly stirred after entering the dryer, so that the feeding cylinder of the dryer is prevented from being blocked.
Description
Technical Field
The utility model relates to a feeding and scattering screw conveyor of a roller dryer, and belongs to the field of roller drying.
Background
In the solid waste treatment field, the roller dryer is very important equipment, and roller dryer feeding screw conveyor is the key equipment of roller dryer, not only contains the function of carrying, still must have the function of sealed material, conveying waste gas concurrently, current screw conveyor with roller dryer is mainly shaftless screw conveyor, and the feed end has the bearing, and the discharge end does not have the bearing, and shaftless blade is unsettled, simple structure, and the installation of being convenient for is also more suitable for carrying the viscidity material, adopts the rubber pad sealing often with the seal of dryer feed cylinder.
Although the existing shaftless screw conveyor solves the problems of feeding and sealing of viscous materials, the shaftless screw conveyor has no shaft, the blades are supported on one side, the self weight of the blades in the shell is liable to deviate from the center of the main shaft, the blades directly generate jumping in the running process and rub with the screw shell, the service life of the shell is not longer than that of the shaftless screw conveyor although the shell is lined with wear-resistant materials, and the bearings are always influenced by the changing impact force due to the jumping of the blades, so that the bearing life is influenced even scrapped in advance; for the dryer generally, an exhaust gas outlet is formed in the feeding barrel, if the feeding barrel is sealed by a rubber gasket, the material is accumulated in the sealing part and can be extruded outwards due to the fact that the barrel continuously rotates, the rubber gasket is not hard enough to block the extrusion force, the material can be easily leaked, the rubber gasket is low in hardness and poor in wear resistance, the replacement frequency is high, and continuous production of the dryer is not facilitated.
In addition, to the viscous material, shaftless screw conveyer stirring performance is relatively poor, and the viscous material is carried to the cylinder drying-machine and generally all is the bulk entering drying-machine, is unfavorable for the stoving, and in the drying-machine anterior segment, the stoving effect is relatively poor, needs the drying-machine to break it through the rotation of self, just can effectual heat transfer, has wasted the anterior segment heat transfer effect of cylinder drying-machine greatly.
Disclosure of Invention
In order to overcome the defects of the prior art, aiming at the defects of poor use stability, poor sealing performance and the like of a feeding screw conveyor of a roller dryer, the double-shaft scattering screw conveyor is adopted, continuous stable feeding of the roller dryer can be ensured, a floating compensation type sealing ring structure is adopted for sealing, tight sealing and non-leakage of a feeding barrel are ensured, staggered arrangement of double-shaft blades is adopted, and even stirring of materials after entering the dryer is ensured. In addition, the ash falling port is formed above the spiral shell inserted into the feeding cylinder of the dryer, so that the fallen materials can be reintroduced into the dryer, and the feeding cylinder of the dryer is prevented from being blocked.
The utility model provides a feeding and scattering screw conveyor of a roller dryer, which has the technical scheme that:
the utility model provides a screw conveyer is broken up in cylinder drying-machine feeding, includes drive unit, drive base, spiral shell, spiral seal section of thick bamboo, initiative helical blade axle, driven helical blade axle and drying-machine drive the base on install drive unit, this spiral shell's one end is installed drive base on, the other end passes in proper order spiral seal section of thick bamboo and drying-machine, this spiral seal section of thick bamboo with the drying-machine between install floating seal ring assembly, spiral seal section of thick bamboo and drying-machine all with spiral shell intercommunication, at the inside pivoted of this spiral shell install initiative helical blade axle and driven helical blade axle, initiative helical blade axle and driven helical blade epaxial blade staggered arrangement, this initiative helical blade axle's one end with drive unit transmission be connected.
The driving unit comprises a driving motor, a speed reducer, a shaft coupler, a front bearing seat, a gear pair and a rear bearing seat, wherein the speed reducer is arranged on an output shaft of the driving motor, one end of the shaft coupler is in transmission connection with the speed reducer, the rear bearing seat is arranged at the end part of the spiral shell, the front bearing seat and the gear pair are sequentially arranged on a driving base between the shaft coupler and the rear bearing seat, and one end of the driving spiral blade shaft is in transmission connection with the shaft coupler after sequentially passing through the rear bearing seat, the gear pair and the front bearing seat; one end of the driven helical blade shaft sequentially passes through the rear bearing seat, the gear pair and the front bearing seat; the other ends of the driving helical blade shaft and the driven helical blade shaft are rotatably arranged on the sealing unit.
The sealing unit comprises a suspension arm, sliding bearings, packing, bronze sleeves and tail shafts, wherein one end of the suspension arm is arranged on the spiral shell, the other end of the suspension arm is provided with the sliding bearings corresponding to the driving spiral blade shaft and the driven spiral blade shaft, the other ends of the driving spiral blade shaft and the driven spiral blade shaft are respectively provided with a tail shaft, each tail shaft is arranged in the corresponding sliding bearing, and the packing and the bronze sleeves are sequentially arranged between the tail shaft and the sliding bearings.
The floating type sealing ring assembly comprises an outer pressing plate, an inner pressing plate, a polytetrafluoroethylene floating ring, an annular pressing plate and a fluorine rubber sealing gasket, wherein the inner pressing plate is welded outside the dryer, the outer pressing plate is arranged outside the inner pressing plate, and an L-shaped sealing space is formed between the outer pressing plate and the inner pressing plate; the outer pressing plate and the inner pressing plate are connected together through screws; the polytetrafluoroethylene floating ring, the annular pressing plate and the fluorine rubber sealing gasket are sequentially arranged in the L-shaped sealing space; the polytetrafluoroethylene floating ring is arranged along the radial direction of the spiral sealing cylinder, and a fit clearance is formed between the polytetrafluoroethylene floating ring and the spiral sealing cylinder.
The polytetrafluoroethylene floating ring is one.
The number of the polytetrafluoroethylene floating rings is two, and the two polytetrafluoroethylene floating rings are arranged in a staggered mode.
The number of the polytetrafluoroethylene floating rings is three, two adjacent polytetrafluoroethylene floating rings are arranged in a staggered manner, and the polytetrafluoroethylene floating rings on two sides are symmetrically arranged along the polytetrafluoroethylene floating rings in the middle.
The fit clearance between the polytetrafluoroethylene floating ring and the spiral sealing cylinder is 0.1-0.2mm, the axial clearance between the polytetrafluoroethylene floating ring and the annular pressing plate is 0.5-1 mm, and the radial clearance is 30mm.
The spiral sealing cylinder is provided with an ash falling port communicated with the dryer, and the dryer is provided with an exhaust gas outlet corresponding to the ash falling port.
A feed inlet is arranged on the spiral sealing cylinder close to one side of the driving unit.
The utility model has the advantages that:
1. the double-shaft helical blade is adopted to replace the shaftless helical blade in the scheme, the operation is safe and stable, the service life is longer, and the feeding uniformity of the roller dryer is guaranteed.
2. The floating compensation type sealing ring structure is adopted between the feeding cylinder and the spiral sealing cylinder of the dryer, the structure is reasonable, the service life is long, and the difficult problem that the axial expansion and contraction and radial runout of the roller dryer are difficult to seal is solved.
3. According to the scheme, the ash falling port is formed in the spiral shell, so that the problem that the inlet of the dryer is frequently blocked due to the fact that the spiral sealing cylinder is easy to accumulate is solved.
The utility model adopts the sliding bearing in the bearing which stretches into the dryer, adopts high-temperature-resistant lubricating grease, adopts the shaft part to carry out quenching and tempering hardening treatment, and the inner hole is lined with the bronze bushing, so that the utility model is more suitable for the severe service environment of the feed inlet of the dryer compared with the rolling bearing. The whole set of screw bolts are fixedly connected to the screw shell, so that the screw shell is convenient to overhaul and replace in later period.
Drawings
Fig. 1 is a schematic diagram of the main structure of the present utility model.
Fig. 2 is a top view of fig. 1.
Fig. 3 is an a-direction view of fig. 2.
Fig. 4 is a schematic view of the structure of the sealing unit in fig. 1.
Fig. 5 is a left side view of fig. 1.
Fig. 6 is a right side view of fig. 1.
FIG. 7 is a schematic structural view of a first embodiment of a floating seal ring assembly of the present utility model.
FIG. 8 is a schematic structural view of a second embodiment of a floating seal ring assembly of the present utility model.
FIG. 9 is a schematic structural view of a third embodiment of a floating seal ring assembly of the present utility model.
Detailed Description
The utility model will be further described with reference to specific embodiments, and advantages and features of the utility model will become apparent from the description. These examples are merely exemplary and do not limit the scope of the utility model in any way. It will be understood by those skilled in the art that various changes and substitutions of details and forms of the technical solution of the present utility model may be made without departing from the spirit and scope of the present utility model, but these changes and substitutions fall within the scope of the present utility model.
Referring to fig. 1 and 6, the utility model relates to a feeding and scattering screw conveyor of a roller dryer, which comprises a driving unit, a driving base 12, a screw shell 11, a screw sealing cylinder 8, a driving screw blade shaft 10, a driven screw blade shaft 23 and a dryer 22, wherein the driving unit is arranged on the driving base 12, one end of the screw shell 11 is arranged on the driving base 12, the other end sequentially passes through the screw sealing cylinder 8 and the dryer 22, a floating seal ring assembly 13 is arranged between the screw sealing cylinder 8 and the dryer 22, the screw sealing cylinder 8 and the dryer 22 are communicated with the screw shell 11, the driving screw blade shaft 10 and the driven screw blade shaft 23 are rotatably arranged in the screw shell 11, the blades on the driving screw blade shaft 10 and the driven screw blade shaft 23 are staggered, and one end of the driving screw blade shaft 10 is in transmission connection with the driving unit.
The driving unit comprises a driving motor 1, a speed reducer, a coupler 2, a front bearing seat 3, a gear pair 4 and a rear bearing seat 6, wherein the speed reducer is arranged on an output shaft of the driving motor 1, one end of the coupler 2 is in transmission connection with the speed reducer, the rear bearing seat 6 is arranged at the end part of the spiral shell 11, the front bearing seat 3 and the gear pair 4 are sequentially arranged on a driving base 12 between the coupler 2 and the rear bearing seat 6, and one end of the driving spiral blade shaft 10 sequentially penetrates through the rear bearing seat 6, the gear pair 4 and the front bearing seat 3 and is in transmission connection with the coupler 2; one end of the driven helical blade shaft 23 sequentially passes through the rear bearing seat 6, the gear pair 4 and the front bearing seat 3; the other ends of the driving helical blade shaft 10 and the driven helical blade shaft 23 are rotatably mounted on a sealing unit.
The sealing unit comprises a suspension arm 9, sliding bearings, packing 18, bronze sleeves 19 and tail shafts 20, wherein one end of the suspension arm 9 is installed on the spiral shell 11, the other end of the suspension arm is provided with the sliding bearings corresponding to the driving spiral blade shaft 10 and the driven spiral blade shaft 23, the other ends of the driving spiral blade shaft 10 and the driven spiral blade shaft 23 are respectively provided with one tail shaft 20, each tail shaft 20 is placed in the corresponding sliding bearing, and the packing 18 and the bronze sleeves 19 are sequentially installed between the tail shaft 20 and the sliding bearings.
The floating seal ring assembly 13 comprises an outer pressure plate 24, an inner pressure plate 25, a polytetrafluoroethylene floating ring 14, an annular pressure plate 15 and a fluorine rubber sealing gasket 16, wherein the inner pressure plate 25 is welded outside the dryer 22, the outer pressure plate 24 is arranged outside the inner pressure plate 25, and an L-shaped sealing space is formed between the outer pressure plate 24 and the inner pressure plate 25; the outer pressing plate 24 and the inner pressing plate 25 are connected together through screws; the polytetrafluoroethylene floating ring 14, the annular pressing plate 15 and the fluorine rubber sealing gasket 16 are sequentially arranged in the L-shaped sealing space; the polytetrafluoroethylene floating ring 14 is arranged along the radial direction of the spiral sealing cylinder 8, and a fit clearance is formed between the polytetrafluoroethylene floating ring 14 and the spiral sealing cylinder 8.
As shown in fig. 7, the polytetrafluoroethylene floating ring 14 is one.
As shown in fig. 8, two polytetrafluoroethylene floating rings 14 are provided, and the two polytetrafluoroethylene floating rings 14 are arranged in a staggered manner.
As shown in fig. 9, the number of the polytetrafluoroethylene floating rings 14 is three, two adjacent polytetrafluoroethylene floating rings 14 are arranged in a staggered manner, and the polytetrafluoroethylene floating rings 14 on two sides are symmetrically arranged along the polytetrafluoroethylene floating ring 14 in the middle.
The fit clearance between the polytetrafluoroethylene floating ring 14 and the spiral sealing cylinder 8 is 0.1-0.2mm, the axial clearance between the polytetrafluoroethylene floating ring 14 and the annular pressing plate 15 is 0.5-1 mm, and the radial clearance is 30mm.
The spiral sealing cylinder 8 is provided with an ash falling port 21 communicated with a dryer, the bottom of the spiral sealing cylinder 8 is also provided with an ash drawing port 17, and the dryer is provided with an exhaust gas outlet corresponding to the ash falling port 21. A feed port 7 is provided in a screw seal cylinder 8 on the side close to the drive unit.
The working principle of the utility model is as follows:
the material gets into spiral shell 11 from feed inlet 7, stirs and carry to the cylinder drying-machine through initiative helical blade axle 10 and driven helical blade axle 23, and spiral shell 11 sets up dust fall 21 in the inside position of spiral seal section of thick bamboo 8, and when waste gas carried the dust to discharge, the heavy granule of part can reentrant spiral shell through the dust fall mouth, carries to the inside of cylinder drying-machine. The clearance between the spiral seal cylinder 8 and the dryer feed cylinder is sealed through the floating seal ring component 13, the floating seal ring component 13 has three structural forms (as shown in fig. 7, 8 and 9), the more polytetrafluoroethylene floating rings 14 are, the better the sealing effect is, because the clearance between the polytetrafluoroethylene floating rings 14 and the spiral seal cylinder 8 is 0.1-0.2mm, the axial clearance between the floating rings and the pressing plate is 0.5-1 mm, the radial clearance is 30mm, moreover, the polytetrafluoroethylene floating rings 14 are turned, the matching precision is ensured, so as to meet the compensation of the axial displacement of the expansion and contraction of the dryer, and the radial displacement compensation of the vertical runout of the dryer, and the sealing and matching reliability is improved.
According to the utility model, a floating compensation type sealing ring structure is adopted between the spiral sealing cylinder and the feeding cylinder of the roller dryer, so that the sealing effect of the inlet of the roller dryer is improved.
The spiral shell is provided with the ash falling port, so that the times of blockage of the feed inlet of the dryer are reduced.
The detachable bronze bushing sliding bearing is adopted in the bearing extending into the feed inlet of the dryer, so that the service life is long, and the maintenance and the replacement are convenient.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (10)
1. The utility model provides a screw conveyer is broken up in cylinder drying-machine feeding, its characterized in that includes drive unit, drive base, spiral shell, spiral seal section of thick bamboo, initiative helical blade axle, driven helical blade axle and drying-machine drive the base on install drive unit, this spiral shell's one end is installed drive base on, the other end passes in proper order spiral seal section of thick bamboo and drying-machine, this spiral seal section of thick bamboo with install floating seal ring assembly between the drying-machine, spiral seal section of thick bamboo and drying-machine all with spiral shell intercommunication, at the inside pivoted of this spiral shell install initiative helical blade axle and driven helical blade axle, initiative helical blade axle and driven helical blade epaxial blade staggered arrangement, this initiative helical blade axle's one end with drive unit transmission be connected.
2. The feeding and scattering screw conveyor of the drum dryer according to claim 1, wherein the driving unit comprises a driving motor, a speed reducer, a shaft coupling, a front bearing seat, a gear pair and a rear bearing seat, the speed reducer is installed on an output shaft of the driving motor, one end of the shaft coupling is in transmission connection with the speed reducer, the rear bearing seat is installed at the end part of the screw shell, the front bearing seat and the gear pair are sequentially installed on a driving base between the shaft coupling and the rear bearing seat, and one end of the driving screw blade shaft is in transmission connection with the shaft coupling after sequentially penetrating through the rear bearing seat, the gear pair and the front bearing seat; one end of the driven helical blade shaft sequentially passes through the rear bearing seat, the gear pair and the front bearing seat; the other ends of the driving helical blade shaft and the driven helical blade shaft are rotatably arranged on the sealing unit.
3. The drum dryer feed-in breaking screw conveyor according to claim 2, wherein said sealing unit comprises a boom, a slide bearing, a packing, a bronze bushing and a tail shaft, one end of the boom is mounted on said screw housing, the other end is mounted with a slide bearing corresponding to the driving screw blade shaft and the driven screw blade shaft, the other ends of the driving screw blade shaft and the driven screw blade shaft are each mounted with a tail shaft, each tail shaft is placed in the corresponding slide bearing, and said packing and bronze bushing are sequentially mounted between said tail shaft and the slide bearing.
4. A drum dryer feed-break screw conveyor according to claim 2 or 3, wherein said floating seal ring assembly comprises an outer platen, an inner platen, a polytetrafluoroethylene floating ring, an annular platen and a fluorine rubber gasket, said inner platen being welded to the outside of said dryer, said outer platen being disposed to the outside of said inner platen, an L-shaped seal space being formed between said outer platen and said inner platen; the outer pressing plate and the inner pressing plate are connected together through screws; the polytetrafluoroethylene floating ring, the annular pressing plate and the fluorine rubber sealing gasket are sequentially arranged in the L-shaped sealing space; the polytetrafluoroethylene floating ring is arranged along the radial direction of the spiral sealing cylinder, and a fit clearance is formed between the polytetrafluoroethylene floating ring and the spiral sealing cylinder.
5. The tumble dryer feeding scattering screw conveyor according to claim 4 wherein said polytetrafluoroethylene floating ring is one.
6. The drum dryer feed-in breaking screw conveyor as in claim 4 wherein the number of polytetrafluoroethylene floating rings is two and the two polytetrafluoroethylene floating rings are arranged in a staggered manner.
7. The feeding and scattering screw conveyor for drum dryer according to claim 4, wherein said polytetrafluoroethylene floating rings are three, two adjacent polytetrafluoroethylene floating rings are arranged in a staggered manner, and polytetrafluoroethylene floating rings on both sides are symmetrically arranged along the polytetrafluoroethylene floating ring in the middle.
8. The drum dryer feed-in breaking screw conveyor as in claim 4 wherein the fit clearance of the polytetrafluoroethylene floating ring and the screw seal cylinder is 0.1-0.2mm, the axial clearance between the polytetrafluoroethylene floating ring and the annular pressure plate is 0.5-1 mm, and the radial clearance is 30mm.
9. The drum dryer feed-in and-out screw conveyor as in claim 1 wherein the screw seal cylinder is provided with a dust-drop port in communication with the dryer and the dryer is provided with an exhaust outlet corresponding to the dust-drop port.
10. The drum dryer feed break-up screw conveyor according to claim 9, wherein a feed port is provided in the screw seal drum near the side of the drive unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320091493.9U CN219474235U (en) | 2023-01-31 | 2023-01-31 | Feeding and scattering screw conveyor of roller dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320091493.9U CN219474235U (en) | 2023-01-31 | 2023-01-31 | Feeding and scattering screw conveyor of roller dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219474235U true CN219474235U (en) | 2023-08-04 |
Family
ID=87460502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320091493.9U Active CN219474235U (en) | 2023-01-31 | 2023-01-31 | Feeding and scattering screw conveyor of roller dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219474235U (en) |
-
2023
- 2023-01-31 CN CN202320091493.9U patent/CN219474235U/en active Active
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