CN111054528B - Piston pushing centrifugal machine and feeding method thereof - Google Patents
Piston pushing centrifugal machine and feeding method thereof Download PDFInfo
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- CN111054528B CN111054528B CN201911288905.2A CN201911288905A CN111054528B CN 111054528 B CN111054528 B CN 111054528B CN 201911288905 A CN201911288905 A CN 201911288905A CN 111054528 B CN111054528 B CN 111054528B
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- rotary drum
- main shaft
- washing water
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000005406 washing Methods 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 46
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims description 17
- 239000000706 filtrate Substances 0.000 claims description 9
- 230000004323 axial length Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000047 product Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/02—Continuous feeding or discharging; Control arrangements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/08—Rotary bowls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/02—Electric motor drives
- B04B9/04—Direct drive
Landscapes
- Centrifugal Separators (AREA)
Abstract
A piston pushing centrifuge comprises a main shaft, a push rod, a rotary drum, a pusher, a distributor, a driving mechanism, a rotary drum reinforcing structure, a main shaft supporting structure, a sleeve and a shell arranged outside the rotary drum; one end of the drum reinforcing structure is fixed on the sleeve, and the other end of the drum reinforcing structure is fixed on the drum wall of the drum; the push rod is of a hollow tubular structure, a main shaft between the pusher and the distributor and/or a material channel communicated with a pipeline inside the push rod is arranged on the push rod, and materials enter a gap between the pusher and the distributor from the material channel and then enter the rotary drum; the main shaft, the push rod and the middle part of the sleeve are provided with washing water channels communicated with the inside of the push rod, washing water enters the inside of the rotary drum from the washing water channels, and the multi-point support structure and the unique feeding method are adopted, so that the rotary drum has the advantages of large diameter, high rotating speed, long length of a filtering area and multiple drum stages, and is difficult to vibrate, large in separation factor, low in filter residue water content, small in washing water equivalent, large in production capacity and large in size.
Description
Technical Field
The patent relates to a centrifugal machine, in particular to a piston pushing centrifugal machine and a feeding method thereof.
Background
The conventional piston pusher centrifuge is a continuously operated, pulsed discharge, filter centrifuge. Under the condition of high-speed operation, the material is continuously fed by a feeding pipe positioned at the open end of the rotary drum, and flows onto a filter screen of the rotary drum along a feeding distributor. The filtrate is continuously discharged through the filtrate outlet by passing through the filter screen, and the filter residues accumulated on the inner surface of the filter screen are pushed out along the inner wall surface of the rotary drum by a pusher which moves back and forth relative to the rotary drum.
Because the material is fed by the feeding pipe positioned at the open end of the rotary drum, the support of the main shaft of the conventional piston pushing centrifugal machine can only be made into a unilateral support structure, and the support structure is that two bearings of the main shaft are positioned at the same side of the rotary drum. The support structure of the rotary drum is a cantilever structure, one end of the rotary drum is fixed on the main shaft or the push rod, and the other end of the rotary drum is a free end (can generate force parallel to the axial direction and perpendicular to the axial direction). The axial feeding end of the drum wall is connected with the main shaft or the push rod by the drum bottom (supporting structure) to support the drum, and the axial discharging end of the drum wall is not connected with the main shaft or the push rod to support the drum.
The axial feeding end of the primary drum wall of the conventional primary piston pushing centrifuge is connected with the main shaft by a primary drum bottom (supporting structure) to support the primary drum, and the axial discharging end of the primary drum wall is not connected with the main shaft to support the primary drum.
The axial feeding end of the primary drum wall of the conventional secondary piston pushing centrifuge is connected with a push rod by a primary drum bottom (supporting structure) to support the primary drum, and the axial discharging end of the primary drum wall is not connected with the push rod to support the primary drum. The axial feeding end of the secondary drum wall is connected with the main shaft by the secondary drum bottom (supporting structure) to support the secondary drum, and the axial discharging end of the secondary drum wall is not connected with the main shaft to support the secondary drum.
The axial feeding end of the primary drum wall of the conventional three-stage piston pushing centrifugal machine is connected with a main shaft (the primary drum bottom is connected with the three-stage drum bottom, and the three-stage drum bottom is connected with the main shaft) by a primary drum bottom so as to support the primary drum, and the axial discharging end of the primary drum wall is not connected with the main shaft so as to support the primary drum. The axial feeding end of the secondary drum wall is connected with the push rod through the secondary drum bottom to support the secondary drum, and the axial discharging end of the secondary drum wall is not connected with the push rod through a support structure to support the secondary drum. The axial feeding end of the three-stage drum wall is connected with the main shaft through the three-stage drum bottom to support the three-stage drum, and the axial discharging end of the three-stage drum wall is not connected with the main shaft to support the three-stage drum.
Fixed end of rotary drumThe resulting centrifugal moment M is equal to the product of the resultant force F of the centrifugal forces of the drum, screen, material, etc. and the drum length L. M=f×l. Centrifugal force is proportional to the centrifugal radius and the square of the rotational angular velocity. F=m×r×ω 2 . Meanwhile, the gravitational moment M borne by the fixed end of the rotary drum is equal to the product of the resultant force F of the gravity of the rotary drum, the filter screen, the materials and the like and the length L of the rotary drum. M=f×l.
Stability of the single-sided support is inferior to that of the double-sided support structure. The cantilever structure causes the free end of the rotary drum to vibrate under the combined action of forces parallel to the axial direction and forces perpendicular to the axial direction, and the rotary drum bottom at the fixed end of the rotary drum is cracked when severe, so that serious accidents are caused.
The mechanical characteristics of the unilateral support and the cantilever structure limit the increase of the diameter, the rotating speed, the length of a filtering area and the number of stages of the rotating drum, so that the piston pushing centrifugal machine has a series of defects of easy vibration, small separation factor, too short material filtering time, too high material water content, large consumption energy for unit product drying, too large washing water equivalent, large environmental protection cost of used washing water treatment difficulty, small number of stages of the rotating drum, small production capacity, incapability of being large and the like.
Disclosure of Invention
The invention aims to provide a piston pushing centrifuge, which overcomes the defects of small diameter, slow rotating speed, short length of a filtering area, few drum stages, easiness in vibration, small separation factor, too short material filtering time, too high material water content, large consumption energy for unit product drying, too large washing water equivalent, large environment-friendly washing water treatment difficulty after use, small drum stages, small production capacity and incapability of being large in size of a conventional piston pushing centrifuge.
The technical scheme adopted by the invention is as follows: a piston pushing centrifugal machine comprises a main shaft, a push rod, a rotary drum with one open end and a side wall provided with holes, a pusher, a distributor, a driving mechanism, a rotary drum reinforcing structure, a main shaft supporting structure, a sleeve and a shell arranged outside the rotary drum, wherein the lower end of the shell is provided with a filtrate outlet and a filter residue outlet; the method is characterized in that:
the main shaft supporting structure comprises a left supporting structure and a right supporting structure which are respectively arranged at two sides of the rotary drum; the bottom of the rotary drum is fixedly arranged on the main shaft or the push rod, the rotary drum reinforcing structures are all arranged in the circumferential direction of the sleeve, one end of each rotary drum reinforcing structure is fixed on the sleeve, and the other end of each rotary drum reinforcing structure is fixed on the wall of the rotary drum;
the push rod is of a hollow tubular structure, the left end of the push rod is a feeding inlet, and the right end of the push rod is a washing water inlet;
the main shaft and the push rod are driven by the driving mechanism to rotate; the push rod is driven by the driving mechanism to axially reciprocate; the main shaft is of a hollow tubular structure, and the push rod is arranged in the main shaft; the opening on the wall of the rotary drum is used as a filtrate channel; the pusher is fixedly arranged at the left end of the main shaft or the push rod; the distributor is arranged on the right side of the pusher, and a gap between the distributor and the distributor is used as a material channel; the sleeve is fixedly sleeved outside the main shaft or the push rod;
a main shaft and/or a push rod between the pusher and the distributor are provided with a material channel communicated with a pipeline inside the push rod, and materials enter a gap between the pusher and the distributor from the material channel and then enter the rotary drum; the middle parts of the main shaft, the push rod and the sleeve are provided with a washing water channel communicated with the inside of the push rod, washing water enters the inside of the rotary drum from the washing water channel, and the push rod is internally provided with a separation plate for separating the material channel and the washing water channel.
Further, the drum reinforcing structure is formed by single or multiple components of one or more of plates, columns, tubes, hollow shafts and fasteners which are uniformly distributed along the circumferential direction of the drum.
Further, the number of the drum reinforcing structures distributed in the axial direction in the drum can be a column, and the drum reinforcing structures are positioned between the axial feeding end and the axial discharging end of the drum wall, and the axial length of the drum reinforcing structures is equal to or smaller than the length of the filtering area of the drum wall, so that the drum reinforcing structures become a continuous supporting structure; two rows of simple beam supporting structures which are respectively positioned at the axial feeding end and the axial discharging end of the drum wall and are supported by double fulcrums can be formed; the support structure can be a multi-pivot support structure with more than two rows and is respectively positioned between the axial feeding end and the axial discharging end of the drum wall.
Further, the rotary drum is a single-stage rotary drum or a double-stage rotary drum or a multi-stage rotary drum; the rotary drum is connected with the rotary drum, the rotary drum is connected with the pusher, the rotary drum is connected with the feeding distributor, the pusher is connected with the feeding distributor, the rotary drum is connected with the main shaft, and the rotary drum is connected with the push rod through a connecting structure to transmit power to rotate or rotate and reciprocate.
Further, the connecting structure is a combination of one or more of plates, columns and pipes and a fastener, or a combination of a plurality of one or more of the connecting structures and the fastener.
Further, the material channel or the washing water channel is in the form of holes or circular seams, and when the channel is a hole, the shaft is in a continuous form; when the channel is a circular seam, the shaft is in a disconnected form, and the two ends of the circular seam are connected by adopting a connecting structure.
Further, by designing the push rod into a hollow tubular structure with two open ends and penetrating the rotary drum, materials enter from a feed port of the push rod, washing water enters from a washing water port of the push rod, and a material channel and a washing water channel are formed in a push rod area where the rotary drum is located; the material enters the interior of the rotary drum through the material channel, and the washing water enters the interior of the rotary drum through the washing water channel.
The invention has the beneficial effects and characteristics that: due to the adoption of the multipoint supporting structure and the unique feeding mode, the rotary drum has the advantages of large diameter, high rotating speed, long length of the filtering area, multiple numbers of the rotary drum, difficult vibration, large separation factor, long filtering area, prolonged material filtering time, low water content of filter residues, small water washing equivalent, large production capacity, large scale, safety and stability, low power consumption of ton products and guarantee of energy conservation, consumption reduction, emission reduction and environmental protection.
Drawings
FIG. 1 is a schematic view of the overall structure of a preferred embodiment of the present invention (pusher reciprocating, drum not reciprocating);
FIG. 2 is a schematic view of the overall structure of another preferred embodiment of the present invention (inner first layer drum reciprocating, pusher not reciprocating);
FIG. 3 is a schematic view of the overall structure of another preferred embodiment of the present invention (inner second layer drum, pusher, reciprocally moved, other layer drums not reciprocally moved);
FIG. 4 is a schematic view of the overall structure of another preferred embodiment of the present invention (pusher reciprocating, drum not reciprocating);
FIG. 5 is a schematic view of the overall structure of another preferred embodiment of the present invention (the pusher does not reciprocate and the inner first layer drum reciprocates);
FIG. 6 is a schematic overall construction of another preferred embodiment of the present invention (pusher reciprocates, second layer drum reciprocates, other layer drums do not reciprocate);
FIG. 7 is a schematic cross-sectional view of the drum at the middle of FIG. 1;
FIG. 8 is a schematic view of a drum assembly according to a preferred embodiment of the present invention (corresponding to the drum structure of FIG. 4, part of the outer side wall of the drum being uncovered for convenience of expressing the internal structure);
FIG. 9 is a schematic view of a drum assembly according to another preferred embodiment of the present invention (corresponding to the drum structure of FIG. 1, part of the outer side wall of the drum being uncovered for convenience of expressing the internal structure);
fig. 10 is a schematic perspective view of the axial discharge end of the drum device according to the preferred embodiment of the present invention (the number of the drum reinforcing structures distributed in the axial direction in the drum is one column).
Description: the arrow in the figure represents the path of the motion trail of the material or the washing water.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
referring to fig. 1, a piston pusher centrifuge includes a main shaft 1, a push rod 2, a drum 3 with an open end and a perforated side wall, a pusher 4, a distributor 5, a driving mechanism 6, a drum reinforcing structure 7, a main shaft supporting structure 8, a sleeve 9, and a casing 10 arranged outside the drum 3, wherein a filtrate outlet 101 and a residue outlet 102 are arranged at the lower end of the casing 10;
the main shaft supporting structure 8 comprises a left supporting structure 81 and a right supporting structure 82 which are respectively arranged at two sides of the rotary drum; the drum bottom 31 of the drum 3 is fixedly arranged on the main shaft 1 or the push rod 2, the drum reinforcing structures 7 are all distributed in the circumferential direction of the sleeve 9, one end of each drum reinforcing structure 7 is fixed on the sleeve 9, and the other end of each drum reinforcing structure 7 is fixed on the drum wall 32 of the drum 3;
the push rod 2 is of a hollow tubular structure, the left end of the push rod 2 is a feeding inlet 21, and the right end of the push rod 2 is a washing water inlet 22;
the main shaft 1 and the push rod 2 are driven to rotate by a driving mechanism 6; the push rod 2 is driven by a driving mechanism 6 to axially reciprocate; the main shaft 1 is of a hollow tubular structure, and the push rod 2 is arranged inside the main shaft 1; the openings on the drum wall 32 of the drum 3 are used as filtrate channels; the pusher 4 is fixedly arranged at the left end of the main shaft 1 or the push rod 2; the distributor 5 is arranged on the right side of the pusher 4, and a gap between the distributor 5 and the pusher is used as a material channel; the sleeve 9 is fixedly sleeved outside the main shaft 1 or the push rod 2;
a main shaft 1 and/or a push rod 2 between the pusher 4 and the distributor 5 are provided with a material channel 23 (the structure form is a through hole) communicated with a pipeline inside the push rod, and materials enter a gap between the pusher 4 and the distributor 5 from the material channel and then enter the inside of the rotary drum; the middle parts of the main shaft 1, the push rod 2 and the sleeve 9 are provided with a washing water channel 24 (the structural form is a through hole) communicated with the inside of the push rod, washing water enters the inside of the rotary drum from the washing water channel, and the push rod is internally provided with a division plate 25 for separating the material channel 21 and the washing water channel 22.
In particular, the drum reinforcing structure 7 is formed by one or more of plates, columns, tubes, hollow shafts and fasteners which are uniformly distributed along the circumferential direction of the drum. The reinforcing structure 7 and the distributor 5 are integrally connected (may be a non-integrally connected structure) in view of ease of processing. The number of the drum reinforcing structures 7 distributed in the axial direction in the drum can be one, and the number is positioned between the axial feeding end and the axial discharging end of the drum wall 32, and the axial length is equal to or smaller than the length of the filtering area of the drum wall, so that the drum reinforcing structures are formed into a continuous supporting structure (see fig. 1 and 4);
example 2:
unlike embodiment 1, the number of the drum reinforcing structures 7 distributed in the axial direction in the drum may be two (see fig. 2, 3 and 5), and they are respectively located at the feeding end and the discharging end of the drum wall 32 in the axial direction, so as to form a simply supported beam supporting structure with double supporting points; two or more rows (see fig. 6) may be provided, each located between the axial feed end and the axial discharge end of the drum wall 32, to form a multi-pivot support structure.
Example 3:
unlike in embodiment 1, the material channel 23 or the washing water channel 24 is formed by a circular seam on the push rod 2, and two ends of the circular seam are connected by a connecting structure 11, and at this time, the torque of the driving mechanism is transmitted through the connecting structure 11 (see the areas with the connecting structure 11 in fig. 2, 3, 4, 5, 6 and 9). The connection structure 11 may be a combination of one or more of a plate, a column, a tube and a fastener (e.g., screw, bolt), or a combination of a plurality of one or more and a fastener (e.g., a structure similar to a coupling).
Example 4:
unlike the embodiment 1, referring to fig. 2 to 6, the drum 3 is a single-stage drum or a double-stage drum or a multi-stage drum; the rotary drums are connected through the connecting structure 11 to transmit power to rotate or rotate and reciprocate.
For more clear illustration of the structure, fig. 8, 9 and 10 show the perspective structure at the drum (only the drum structure in fig. 1 and 4 is taken as an example, fig. 8 corresponds to the drum in fig. 1, and fig. 9 corresponds to the drum in fig. 4)
According to the feeding method of the piston pushing centrifuge, the push rod 2 is designed into a hollow tubular structure with two open ends and penetrates through the rotary drum 3, materials enter from the feeding hole 21 of the push rod 2, washing water enters from the washing water hole of the push rod 2, and a material channel 23 and a washing water channel 24 are formed in the area of the push rod 2 where the rotary drum 3 is located; the material enters the interior of the drum through a material channel 23, and the washing water enters the interior of the drum through a washing water channel 24. The washing water enters the drum 3 from the washing water channel 24, the drum 3 rotates under the action of the driving mechanism 6, the materials are dried under the action of centrifugal force, filtrate is separated out from the openings of the drum wall 32, the filter residues are remained on the side wall of the drum wall 32 to form a barrel-shaped filter cake 12, and the filter residues are pushed out of the open end of the drum 3 section by the pusher 4 or the drum 3 (the displacement of the left-right reciprocating motion is limited by not closing the material channel or the washing water channel) in a left-right reciprocating manner.
The invention changes the supporting structure of the main shaft from a unilateral supporting structure to a bilateral or multilateral supporting structure, changes the cantilever beam supporting structure supported by a single supporting point at the axial feeding end of the drum wall to a simple supporting beam supporting structure supported by double supporting points at the axial feeding end and the discharging end of the drum wall, or changes the supporting structure with multiple supporting points between the axial feeding end and the discharging end of the drum wall, or changes the supporting structure into a plate supporting structure with the length approximately equal to the length of a filtering area of the drum wall; the strength of the drum wall is greatly enhanced, so that the drum has large diameter, high rotating speed, long length of a filtering area, multiple drum stages, difficult vibration, large separation factor, long filtering area, prolonged material filtering time, low water content of filter residues, small water washing equivalent, large production capacity and large size.
In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the apparatus or elements being referred to must have a particular orientation, be configured and operate in a particular orientation.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. The present invention is not limited to the above embodiments, but rather, the above embodiments and description are merely illustrative of the structural relationships and principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A piston pushing centrifugal machine comprises a main shaft (1), a push rod (2), a rotary drum (3) with one end open and a side wall perforated, a pusher (4), a distributor (5), a driving mechanism (6), a rotary drum reinforcing structure (7), a main shaft supporting structure (8), a sleeve (9) and a casing (10) arranged outside the rotary drum (3), wherein the casing (10) is arranged on the outer side of the rotary drum
A filtrate outlet (101) and a filter residue outlet (102) are arranged at the lower end of the filter residue tank; the method is characterized in that:
the main shaft supporting structure (8) comprises a left supporting structure (81) and a right supporting structure (82) which are respectively arranged at two sides of the rotary drum; the drum bottom (31) of the drum (3) is fixedly arranged on the main shaft (1) or the push rod (2), the drum reinforcing structures (7) are all arranged in the circumferential direction of the sleeve (9), and the drum reinforcing structures
(7) One end of the sleeve (9) is fixed on the sleeve, and the other end is fixed on a drum wall (32) of the drum (3); the push rod (2) is of a hollow tubular structure, the left end of the push rod (2) is provided with a feeding inlet (21), and the right end of the push rod (2) is provided with a washing water inlet (22);
the main shaft (1) and the push rod (2) are driven to rotate by a driving mechanism (6); the push rod (2) is driven by a driving mechanism (6) to axially reciprocate; the main shaft (1) is of a hollow tubular structure, and the push rod (2) is arranged inside the main shaft (1); an opening is formed in a drum wall (32) of the drum (3) and is used as a filtrate channel; the pusher (4) is fixedly arranged at the left end of the main shaft (1) or the push rod (2); the distributor (5) is arranged on the right side of the pusher (4), and a gap between the distributor and the distributor is used as a material channel; the sleeve (9) is fixedly sleeved outside the main shaft (1) or the push rod (2);
a main shaft (1) and a push rod (2) between the pusher (4) and the distributor (5) are provided with a material channel (23) communicated with an internal pipeline of the push rod, and materials enter a gap between the pusher (4) and the distributor (5) from the material channel and then enter the interior of the rotary drum;
the middle parts of the main shaft (1), the push rod (2) and the sleeve (9) are provided with a washing water channel (24) communicated with the inside of the push rod, washing water enters the inside of the rotary drum from the washing water channel, and the push rod is internally provided with a division plate (25) for dividing the material channel (23) and the washing water channel (24); the number of the drum reinforcing structures (7) in the drum along the axial direction can be one row, and the drum reinforcing structures are positioned between the axial feeding end and the axial discharging end of the drum wall (32), and the axial length of the drum reinforcing structures is equal to or less than the length of a filtering area of the drum wall, so that the drum reinforcing structures become a continuous supporting structure; two rows of simple beam supporting structures which are respectively positioned at the axial feeding end and the axial discharging end of the drum wall (32) and are supported by double fulcrums can be formed; more than two rows can be respectively positioned between the axial feeding end and the axial discharging end of the drum wall (32) to form a multi-fulcrum supporting structure;
the material channel (23) or the washing water channel (24) is in a hole or circular seam form, and when the channel is a hole, the shaft is in a continuous form; when the channel is a circular seam, the shaft is in a disconnected form, and the two ends of the circular seam are connected by adopting a connecting structure (11).
2. The piston pusher centrifuge of claim 1 wherein: the drum reinforcing structure (7) is formed by single or multiple plates, columns, tubes, hollow shafts and one or more fasteners which are uniformly distributed along the circumferential direction of the drum.
3. The piston pusher centrifuge of claim 1 wherein: the rotary drum (3) is a single-stage rotary drum or a double-stage rotary drum or a multi-stage rotary drum; the rotary drums are connected with each other through a connecting structure (11) to transmit power to rotate or reciprocate.
4. A piston pusher centrifuge according to claim 3, characterized in that: the connecting structure (11) is a combination of one or more of plates, columns and pipes and a fastener, or a combination of a plurality of one or more of the connecting structures and the fastener.
5. The method for feeding a piston pusher centrifuge of claim 1, wherein: through designing the push rod (2) into a hollow tubular structure with two open ends and penetrating through the rotary drum (3), materials enter from a feed inlet (21) of the push rod (2), washing water enters from a washing water inlet of the push rod (2), and a material channel (23) and a washing water channel (24) are formed in the region of the push rod (2) where the rotary drum (3) is located; the material enters the interior of the rotary drum through a material channel (23), and the washing water enters the interior of the rotary drum through a washing water channel (24).
Priority Applications (1)
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| CN201911288905.2A CN111054528B (en) | 2019-12-12 | 2019-12-12 | Piston pushing centrifugal machine and feeding method thereof |
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| CN201911288905.2A CN111054528B (en) | 2019-12-12 | 2019-12-12 | Piston pushing centrifugal machine and feeding method thereof |
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| CN111054528A CN111054528A (en) | 2020-04-24 |
| CN111054528B true CN111054528B (en) | 2024-02-02 |
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