CN212126551U - High-temperature shaftless screw conveyor - Google Patents
High-temperature shaftless screw conveyor Download PDFInfo
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- CN212126551U CN212126551U CN201922134298.6U CN201922134298U CN212126551U CN 212126551 U CN212126551 U CN 212126551U CN 201922134298 U CN201922134298 U CN 201922134298U CN 212126551 U CN212126551 U CN 212126551U
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Abstract
The utility model relates to a high temperature solid material field of carrying specifically discloses a high temperature shaftless screw conveyer, and in material transportation process, the gear drives the rotation axis and does not have the rotation of axle helical blade, and in the material got into shaftless spiral from the feed inlet, under the rotatory effect of shaftless helical blade, the discharge gate was carried to the material. The utility model discloses high temperature resistant material is chooseed for use to the part of device, adopts the water-cooling mode to reduce the temperature of packing and bearing, makes shaftless spiral can be applied to the high temperature operating mode.
Description
Technical Field
The utility model belongs to high temperature solid material carries the field, concretely relates to high temperature shaftless screw conveyer.
Background
Because the shaftless screw conveyor has the winding resistance and the blockage resistance in the material conveying process, the shaftless screw conveyor is more and more widely used as conveying equipment for sludge, solid materials, garbage, belt-shaped wound materials and the like. In recent years, with the expansion of the application range of shaftless spirals, the shaftless spirals are often used in high-temperature working conditions, such as high-temperature metal particles, high-temperature quartz sand, high-temperature coal dust and the like. The normal screw generally has the use temperature of below 200 ℃, and the sealing and the service life of the shaftless screw conveyor are influenced by high temperature and material friction due to the use of the shell and the screw plate which are made of high-temperature resistant metal materials.
Therefore, it is highly desirable to design a shaftless screw conveyor which can resist high temperature and wear.
Disclosure of Invention
An object of the utility model is to provide a high temperature shaftless screw conveyer can be high temperature resistant stand wear and tear.
The technical scheme of the utility model as follows:
a high-temperature shaftless screw conveyor comprises a gear, a rotating shaft, a bearing seat, a packing gland, an end cover flange, a shell, a shaftless screw, a supporting leg, packing, an in-shaft cooling water pipe, a water-cooling rotary joint, a water inlet pipe, a water outlet flange, a water inlet flange and a bearing seat support;
the shell is a cylindrical cavity, the front end of the conveying pipe is open, and the rear end of the conveying pipe is closed; a vertically upward feeding hole, a vertically downward discharging hole and a vertically upward overhaul hole are respectively formed in the side wall of the shell; the feeding hole is positioned at the front part of the conveying, and the discharging hole and the access hole are positioned at the rear part of the conveying;
the bottom of the shell is provided with support legs for supporting and fixing;
an end cover flange is welded at an opening at the conveying front end of the shell and is fixed with an end cover through the end cover flange;
a central through hole is machined in the center of the end cover, and a tooth-shaped structure is machined on the inner side wall of the central through hole so as to reduce the entering of fine high-temperature materials into a gap between the rotating shaft and the end cover and increase the sealing performance;
a central cooling hole is formed in the rotating shaft, the central cooling hole is coaxial with the rotating shaft, and an in-shaft cooling water pipe is arranged in the central cooling hole;
one end of the rotating shaft penetrates through a central through hole in the end cover, extends into the shell and is connected with one end of the shaftless spiral, and the other end of the rotating shaft is positioned outside the shell and is connected with the middle part of the gear in a key mode; the gear is connected with an external driving motor and can drive the rotating shaft and the shaftless spiral to rotate;
the part of the rotating shaft, which is positioned outside the shell, is clamped in the bearing and is fixedly connected with the water-cooling rotating joint, and meanwhile, the in-shaft cooling water pipe is communicated with the water-cooling rotating joint;
the shaftless screw is positioned in the shell, and the other end of the shaftless screw is positioned above the discharge hole;
filling filler into an outer gap where the rotating shaft is connected with the central through hole of the end cover, and pressing the outer gap with a filler gland to play a role in sealing;
a water inlet pipe and a water outlet pipe are led out from the water-cooling rotary joint, the opening of the water inlet pipe is used as a first cooling water inlet, and the opening of the water outlet pipe is used as a first cooling water outlet; cooling water enters from the cooling water inlet, passes through the cooling water pipe, reaches the water-cooling rotary joint, then enters the in-shaft cooling water pipe, and enters the central cooling hole from the other end of the in-shaft cooling water pipe so as to reduce the temperature of the filler;
the bearing is fixedly arranged in the bearing seat, and the bearing seat is arranged on the bearing seat bracket; welding and processing an annular closed space on the outer side of the bearing seat to serve as a cooling jacket, and introducing circulating cooling water into the cooling jacket to cool the bearing;
a water outlet flange is welded above the cooling jacket, and a water inlet flange is welded below the cooling jacket; a second cooling water outlet is formed in the water outlet flange, and a second cooling water inlet is formed in the water inlet flange; cooling water is introduced from a second cooling water inlet and is discharged from a second cooling water outlet after passing through the cooling bearing;
in the material conveying process, the gear drives the rotating shaft and the shaftless helical blade to rotate, the material enters the shaftless helix from the feeding hole, and the material is conveyed to the discharging hole under the rotating action of the shaftless helical blade.
Also comprises a lining cylinder;
the lining cylinder is of a semi-cylindrical structure, the outer wall of the lining cylinder is attached to the inner wall of the shell, the lining cylinder and the shell are coaxial, and the lining cylinder is spirally arranged on the lining cylinder without a shaft.
The device also comprises a pressing strip;
the two pressing strips are respectively clamped on the parallel end faces at the two sides of the lining cylinder and are fixed on the inner surface of the shell in a welding or screw connection mode to fix the lining cylinder and the shell.
The outer wall of the shell is coated with an insulating layer, and a heat insulation gasket is arranged between the shell and the supporting legs so as to reduce heat loss.
And a gas purging port is formed in the end cover, and is used for communicating a gap between the rotating shaft and the end cover with an external gas source and for purging fine materials in the gap between the rotating shaft and the end cover.
And a blind plate is covered on the access hole.
And a gasket is arranged between the end cover and the end cover flange and is used for realizing the sealing of the end cover and the end cover flange.
The lining cylinder is made of high-temperature-resistant wear-resistant alloy or non-metal material and is used as a wear-resistant layer for bearing wear generated during shaftless spiral rotation.
And surfacing wear-resistant hard alloy on the outer side of the blade of the shaftless spiral to improve the wear resistance.
The shell, the blade without the shaft spiral and the rotating shaft are all made of high-temperature-resistant alloy.
The beneficial effects of the utility model reside in that:
(1) the utility model discloses high temperature resistant material is chooseed for use to the part of device, adopts the water-cooling mode to reduce the temperature of packing and bearing, makes shaftless spiral can be applied to the high temperature operating mode.
(2) The utility model discloses the device adopts high temperature resistant wear-resisting welt, build-up welding carbide on shaftless helical blade, adopts profile of tooth seal structure and gaseous sweeping between rotation axis and end cover, and reducible high temperature material improves life to the wearing and tearing of equipment.
Drawings
FIG. 1 is a schematic view of the shaftless screw conveyor of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
fig. 3 is a partially enlarged view of the tooth structure at B in fig. 1.
In the figure: the device comprises a gear 1, a rotating shaft 2, a bearing 3, a bearing seat 4, a packing gland 5, an end cover 6, an end cover flange 7, a shell 8, a shaftless screw 9, a lining cylinder 10, a supporting leg 11, a gasket 12, a packing 13, a cooling water pipe in the shaft 14, a water-cooling rotary joint 15, a water inlet pipe 16, a water outlet pipe 17, a water outlet flange 18, a water inlet flange 19, a bearing seat support 20, a blind plate 21, a pressing strip 22, a heat insulation gasket 23, a central cooling hole 2A, a gas purging port 6A, a feed inlet 8A, a discharge outlet 8B, an overhaul port 8C, a cooling water inlet I16A, a cooling water outlet I17A, a cooling water outlet II 18A, a cooling jacket 18B and a cooling water inlet II.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the high-temperature shaftless screw conveyor comprises a gear 1, a rotating shaft 2, a bearing 3, a bearing seat 4, a packing gland 5, an end cover 6, an end cover flange 7, a shell 8, a shaftless screw 9, a lining cylinder 10, a supporting leg 11, a gasket 12, a packing 13, an in-shaft cooling water pipe 14, a water-cooling rotary joint 15, a water inlet pipe 16, a water outlet pipe 17, a water outlet flange 18, a water inlet flange 19, a bearing seat support 20, a blind plate 21, a pressing strip 22 and a heat insulation gasket 23.
The shell 8 is a cylindrical cavity, the front end of the conveying device is open, and the rear end of the conveying device is closed. And a vertical upward feeding hole 8A, a vertical downward discharging hole 8B and a vertical upward access hole 8C are respectively arranged on the side wall of the shell 8. The feed inlet 8A is positioned at the front part of the conveying, and the discharge outlet 8B and the access hole 8C are positioned at the rear part of the conveying. And a blind plate 21 is covered on the access hole 8C.
The lining cylinder 10 is of a semi-cylindrical structure, the outer wall of the lining cylinder is attached to the inner wall of the shell 8, and the lining cylinder and the shell are coaxial. The material of the liner 10 is a high temperature resistant and wear resistant alloy or a non-metallic material, such as silicon carbide, as a wear resistant layer for bearing wear generated when the shaftless screw 9 rotates. The two pressing strips 22 are respectively clamped on the parallel end faces at the two sides of the lining cylinder 10 and are fixed on the inner surface of the shell 8 in a welding or screw connection mode to fix the lining cylinder 10 and the shell 8.
And the bottom of the shell 8 is provided with a supporting leg 11 for supporting and fixing.
The outer wall of the shell 8 is covered with an insulating layer, and a heat insulating gasket 23 is arranged between the shell 8 and the supporting leg 11 to reduce heat loss.
An end cover flange 7 is welded at an opening at the conveying front end of the shell 8 and is fixed with the end cover 6 through the end cover flange 7. A gasket 12 is arranged between the end cover 6 and the end cover flange 7 for realizing the sealing of the two.
A central through hole is processed at the center of the end cover 6, and a tooth-shaped structure is processed on the inner side wall of the central through hole, as shown in fig. 3, so that fine high-temperature materials are reduced from entering a gap between the rotating shaft 2 and the end cover 6, and the sealing performance is improved.
And a gas purging port 6A is formed in the end cover 6, and is used for communicating a gap between the rotating shaft 2 and the end cover 6 with an external gas source and for purging fine materials in the gap between the rotating shaft 2 and the end cover 6.
A central cooling hole 2A is formed in the rotating shaft 2, the central cooling hole 2A is coaxial with the rotating shaft 2, and an in-shaft cooling water pipe 14 is provided in the central cooling hole 2A. One end of the rotating shaft 2 penetrates through a central through hole in the end cover 6, extends into the shell 8 and is connected with one end of the shaftless spiral 9, and the other end of the rotating shaft 2 is located outside the shell 8 and is connected with the middle of the gear 1 through a key. Two ends of the gear 1 are connected with an external driving motor, and can drive the rotating shaft 2 and the shaftless screw 9 to rotate. The part of the rotating shaft 2, which is positioned outside the shell 8, is clamped in the bearing 3 and is fixedly connected with the water-cooling rotary joint 15, and meanwhile, the cooling water pipe 14 in the shaft is communicated with the water-cooling rotary joint 15.
The shaftless screw 9 is positioned in the shell 8 and is arranged on the lining cylinder 10, and the other end of the shaftless screw is positioned above the discharge hole 8B. And (3) surfacing wear-resistant hard alloy on the outer side of the blade of the shaftless spiral 9 to improve the wear resistance.
And filling 13 into an outer gap where the rotating shaft 2 is connected with the central through hole of the end cover 6, and pressing the gap by using a packing gland 5 to play a role in sealing. The filler 13 is graphite.
A water inlet pipe 16 and a water outlet pipe 17 are led out from the water-cooling rotary joint 15. The opening of the water inlet pipe 16 is used as a first cooling water inlet 16A, and the opening of the water outlet pipe 17 is used as a first cooling water outlet 17A. The cooling water enters from the first cooling water inlet 16A, passes through the cooling water pipe 16, reaches the water-cooled rotary joint 15, enters the shaft cooling water pipe 14, and enters the central cooling hole 2A from the other end of the shaft cooling water pipe 14 to reduce the temperature of the filler 13.
The bearing 3 is fixedly arranged in the bearing seat 4, and the bearing seat 4 is arranged on the bearing seat bracket 20. An annular closed space is welded and processed on the outer side of the bearing seat 4 to serve as a cooling jacket 18B, and circulating cooling water is introduced into the cooling jacket 18B to cool the bearing 3. And a water outlet flange 18 is welded above the cooling jacket 18B, and a water inlet flange 19 is welded below the cooling jacket 18B. The water outlet flange 18 is provided with a second cooling water outlet 18A, and the water inlet flange 19 is provided with a second cooling water inlet 19A. And cooling water is introduced from the second cooling water inlet 19A, passes through the cooling bearing 3 and is discharged from the second cooling water outlet 18A.
In order to be suitable for high-temperature working conditions, the shell 8, the blade of the shaftless spiral 9 and the rotating shaft 2 are all made of high-temperature-resistant alloy.
In the material conveying process, the gear 1 drives the rotating shaft 2 and the shaftless spiral 9 to rotate, materials enter the shaftless spiral 9 from the feeding hole 8A, and the materials are conveyed to the discharging hole 8B under the rotating action of the shaftless spiral 9.
Claims (10)
1. A high temperature shaftless screw conveyer which characterized in that: the device comprises a gear (1), a rotating shaft (2), a bearing (3), a bearing seat (4), a packing gland (5), an end cover (6), an end cover flange (7), a shell (8), a shaftless spiral (9), a supporting leg (11), packing (13), an in-shaft cooling water pipe (14), a water-cooling rotary joint (15), a water inlet pipe (16), a water outlet pipe (17), a water outlet flange (18), a water inlet flange (19) and a bearing seat support (20);
the shell (8) is a cylindrical cavity, the front end of the conveying pipe is open, and the rear end of the conveying pipe is closed; a vertically upward feeding hole (8A), a vertically downward discharging hole (8B) and a vertically upward overhaul hole (8C) are respectively formed in the side wall of the shell (8); the feeding port (8A) is positioned at the front part of the conveying, and the discharging port (8B) and the access hole (8C) are positioned at the rear part of the conveying;
the bottom of the shell (8) is provided with a supporting leg (11) for supporting and fixing;
an end cover flange (7) is welded at an opening at the conveying front end of the shell (8) and is fixed with the end cover (6) through the end cover flange (7);
a central through hole is machined in the center of the end cover (6), and a tooth-shaped structure is machined on the inner side wall of the central through hole so as to reduce the entering of fine high-temperature materials into a gap between the rotating shaft (2) and the end cover (6) and increase the sealing performance;
a central cooling hole (2A) is processed in the rotating shaft (2), the central cooling hole (2A) is coaxial with the rotating shaft (2), and an in-shaft cooling water pipe (14) is arranged in the central cooling hole (2A);
one end of the rotating shaft (2) penetrates through a central through hole in the end cover (6) to extend into the shell (8) and is connected with one end of the shaftless spiral (9), and the other end of the rotating shaft (2) is positioned outside the shell (8) and is connected with the middle part of the gear (1) through a key; the gear (1) is connected with an external driving motor and can drive the rotating shaft (2) and the shaftless screw (9) to rotate;
the part of the rotating shaft (2) positioned outside the shell (8) is clamped in the bearing (3) and is fixedly connected with the water-cooling rotating joint (15), and meanwhile, the in-shaft cooling water pipe (14) is communicated with the water-cooling rotating joint (15);
the shaftless screw (9) is positioned in the shell (8), and the other end of the shaftless screw is positioned above the discharge hole (8B);
filling a packing (13) into an outer gap where the rotating shaft (2) is connected with a central through hole of the end cover (6), and pressing the outer gap by using a packing gland (5) to play a role in sealing;
a water inlet pipe (16) and a water outlet pipe (17) are led out from the water-cooling rotary joint (15), the opening of the water inlet pipe (16) is used as a first cooling water inlet (16A), and the opening of the water outlet pipe (17) is used as a first cooling water outlet (17A); cooling water enters from a first cooling water inlet (16A), passes through a water inlet pipe (16), reaches a water-cooling rotary joint (15), then enters an axial cooling water pipe (14), and enters a central cooling hole (2A) from the other end of the axial cooling water pipe (14) so as to reduce the temperature of a filler (13);
the bearing (3) is fixedly arranged in the bearing seat (4), and the bearing seat (4) is arranged on the bearing seat bracket (20); an annular closed space is welded and processed on the outer side of the bearing seat (4) to serve as a cooling jacket (18B), and circulating cooling water is introduced into the cooling jacket (18B) to cool the bearing (3);
a water outlet flange (18) is welded above the cooling jacket (18B), and a water inlet flange (19) is welded below the cooling jacket; a second cooling water outlet (18A) is arranged on the water outlet flange (18), and a second cooling water inlet (19A) is arranged on the water inlet flange (19); cooling water is introduced from a cooling water inlet II (19A), passes through the cooling bearing (3) and is discharged from a cooling water outlet II (18A);
in the material conveying process, the gear (1) drives the rotating shaft (2) and the shaftless spiral (9) blade to rotate, materials enter the shaftless spiral (9) from the feeding hole (8A), and under the rotating action of the shaftless spiral (9) blade, the materials are conveyed to the discharging hole (8B).
2. A high temperature shaftless screw conveyor as in claim 1, wherein: further comprising a liner (10);
the lining cylinder (10) is of a semi-cylindrical structure, the outer wall of the lining cylinder is attached to the inner wall of the shell (8) together, the lining cylinder and the shell are coaxial, and the shaftless spiral (9) is arranged on the lining cylinder (10).
3. A high temperature shaftless screw conveyor as in claim 2, wherein: also comprises a pressing strip (22);
the two pressing strips (22) are respectively clamped on the parallel end surfaces at the two sides of the lining cylinder (10) and are fixed on the inner surface of the shell (8) in a welding or screw connection mode to fix the lining cylinder (10) and the shell (8).
4. A high temperature shaftless screw conveyor as in claim 3, wherein: the outer wall of the shell (8) is coated with an insulating layer, and a heat insulation gasket (23) is arranged between the shell (8) and the supporting leg (11) to reduce heat loss.
5. A high temperature shaftless screw conveyor as in claim 4, wherein: and a gas purging port (6A) is processed on the end cover (6) to communicate a gap between the rotating shaft (2) and the end cover (6) with an external gas source and is used for purging fine materials in the gap between the rotating shaft (2) and the end cover (6).
6. A high temperature shaftless screw conveyor as in claim 5, wherein: and a blind plate (21) is covered on the access hole (8C).
7. A high temperature shaftless screw conveyor as in claim 6, wherein: and a gasket (12) is arranged between the end cover (6) and the end cover flange (7) and is used for realizing the sealing of the end cover and the end cover flange.
8. A high temperature shaftless screw conveyor as in claim 7, wherein: the lining cylinder (10) is made of high-temperature-resistant wear-resistant alloy or non-metal material and is used as a wear-resistant layer for bearing wear generated when the shaftless screw (9) rotates.
9. A high temperature shaftless screw conveyor as in claim 8, wherein: and (3) surfacing wear-resistant hard alloy on the outer side of the blade of the shaftless spiral (9) to improve the wear resistance.
10. A high temperature shaftless screw conveyor as in claim 9, wherein: the shell (8), the blade of the shaftless spiral (9) and the rotating shaft (2) are all made of high-temperature-resistant alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922134298.6U CN212126551U (en) | 2019-12-03 | 2019-12-03 | High-temperature shaftless screw conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922134298.6U CN212126551U (en) | 2019-12-03 | 2019-12-03 | High-temperature shaftless screw conveyor |
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| Publication Number | Publication Date |
|---|---|
| CN212126551U true CN212126551U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922134298.6U Active CN212126551U (en) | 2019-12-03 | 2019-12-03 | High-temperature shaftless screw conveyor |
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| Country | Link |
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| CN (1) | CN212126551U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114620425A (en) * | 2022-03-29 | 2022-06-14 | 景津装备股份有限公司 | Cold water cooling type U-shaped material conveying groove and corresponding cooling type high-temperature filter cake spiral conveyor |
-
2019
- 2019-12-03 CN CN201922134298.6U patent/CN212126551U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114620425A (en) * | 2022-03-29 | 2022-06-14 | 景津装备股份有限公司 | Cold water cooling type U-shaped material conveying groove and corresponding cooling type high-temperature filter cake spiral conveyor |
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