CN211964617U - High-dehydration-efficiency vacuum device for siphon scraper centrifuge - Google Patents
High-dehydration-efficiency vacuum device for siphon scraper centrifuge Download PDFInfo
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- CN211964617U CN211964617U CN202020446873.6U CN202020446873U CN211964617U CN 211964617 U CN211964617 U CN 211964617U CN 202020446873 U CN202020446873 U CN 202020446873U CN 211964617 U CN211964617 U CN 211964617U
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Abstract
The utility model provides a siphon scraper centrifuge is with high dehydration efficiency vacuum apparatus, include: the shell is provided with a feed inlet; a rotating shaft extending into the inner side of the casing; a rotary drum arranged inside the casing; the rotary drum bottom plate is internally connected with the inner wall of the rotary drum and divides the inner space of the rotary drum into a first compartment and a second compartment, and the rotating shaft extends into the second compartment and is connected with the rotary drum bottom plate; the screen is in a tube shape and is arranged in the first separation cavity of the rotary drum, the outer wall of the screen is matched with the inner wall of the first separation cavity of the rotary drum to form a liquid phase separation cavity, and a connecting channel is arranged between the liquid phase separation cavity and the second separation cavity of the rotary drum; the filter bag is attached to the inner wall of the screen along the inner circumference of the screen; and one end of the liquid suction pipe extends into the inner side of the machine shell and the inner side of the second separation cavity of the rotary drum. In the working process of the vacuum device, the materials gradually form filter cakes, which is equivalent to pressurizing and separating the materials, so that the separation effect is increased, the dehydration efficiency is improved, the machine structure is simplified, and the vacuum device is convenient to maintain.
Description
Technical Field
The utility model belongs to the technical field of centrifuge, specifically, relate to a siphon scraper is high dehydration efficiency vacuum apparatus for centrifuge.
Background
The scraper (siphon) centrifuge is a filtering centrifuge, the main motor drives the rotating drum to rotate at high speed, the materials in the rotating drum rotate at high speed along with the rotating drum, and the centrifugal force separates the liquid phase from the solid phase.
The siphon scraper centrifuge has the advantages of large filtration driving force, low moisture content of filter residues, adjustable filtration speed, renewable residual layer, high automation degree, reliable operation, stable operation and strong adaptability, is particularly suitable for heavy-load production and materials needing full washing, and is widely used for separating polyacrylonitrile, vitamin B, sodium bicarbonate, sodium perborate, calcium phosphate and other materials at present.
However, the existing scraper (siphon) centrifuge has the defects of poor separation effect and the like.
For scraper (siphon) centrifuges, the following patent documents mainly exist at home at present:
as disclosed in patent publication nos.: CN101700508B, discloses a scraper centrifuge with a gap adjustable sealing device. The sealing device comprises a main shaft, a front gland and a gap-adjustable sealing device, wherein the sealing device consists of a movable adjusting sheath, a gland, a sealing ring, a main shaft sheath and a spring, the movable adjusting sheath, the gland (4) and the main shaft sheath are sleeved on the main shaft, the sealing ring is arranged between the gland and the main shaft sheath, the spring is arranged between the gland and the movable adjusting sheath, and the movable adjusting sheath is tightly contacted with the bottom of the rotary drum under the action of the spring force. By adopting the structure, the gap between the rotary drum and the front gland can be freely adjusted, the main shaft is prevented from being corroded by corrosive liquid and gas, and the service life of the scraper centrifuge can be prolonged. However, the scraper centrifuge provided by the patent is mainly improved in sealing of the scraper centrifuge, and the improvement of the separation effect is not obvious for the most important purpose of the scraper centrifuge.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists, the utility model aims to provide a high dehydration efficiency vacuum apparatus for siphon scraper centrifuge, vacuum apparatus is in the course of the work, and the material progressively forms the filter cake, is equivalent to and pressurizes the separation to the material, increases the separation effect, has improved dehydration efficiency, has simplified machine structure, is convenient for maintain.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a high dewatering efficiency vacuum apparatus for a siphon drag centrifuge, the apparatus comprising: the device comprises a shell, a feed inlet and a discharge outlet, wherein one side of the shell is provided with the feed inlet; the rotating shaft extends into the inner side of the shell from the other side of the shell; the rotary drum is in a pipe shape and arranged on the inner side of the machine shell, one opening end of the rotary drum faces to the feeding hole of the machine shell, and the other opening end of the rotary drum extends into the inner side end of the machine shell towards the rotating shaft; the rotary drum bottom plate is internally connected to the inner wall of the rotary drum far away from the feeding port of the machine shell, the inner side space of the rotary drum is divided into a first separation chamber and a second separation chamber which are sequentially distributed along the axial direction of the rotary drum by the rotary drum bottom plate, the inner side end of the rotary shaft extending into the machine shell extends into the inner side of the second separation chamber and is connected with the rotary drum bottom plate, and the rotary shaft rotationally drives the rotary drum bottom plate to drive the; the screen is in a tube shape, the screen is arranged in a first separation cavity of the rotary drum along the axial direction of the rotary drum, the outer wall of the screen is matched with the inner wall of the first separation cavity of the rotary drum to form a liquid phase separation cavity, and a connecting channel is arranged between the liquid phase separation cavity and a second separation cavity of the rotary drum; the filter bag is attached to the inner wall of the screen along the inner circumference of the screen; and one end of the liquid suction pipe extends into the inner side of the machine shell and the inner side of the second separation cavity of the rotary drum.
Furthermore, a ring platform is convexly arranged on the outer wall of the rotary drum close to one end of the rotating shaft along the outer circumference of the rotary drum to form a stepped structure of the rotary drum; the inner diameter of the rotary drum corresponding to the second separation chamber is larger than that of the rotary drum corresponding to the first separation chamber.
Furthermore, the rotary drum is a pipe body with two closed ends, a feeding opening is formed in the closed end of the rotary drum facing the feeding hole of the shell, a socket is formed in the closed end of the rotary drum facing the rotating shaft, and the inner diameter of the socket is larger than that of the feeding opening.
Furthermore, an annular boss is convexly arranged on the inner wall of the rotary drum close to one end of the insertion opening along the inner circumference of the rotary drum, and the rotary drum bottom plate is clamped on the annular boss.
Further, the rotary drum bottom plate is detachably connected with the annular boss through bolts.
Furthermore, the rotary drum bottom plate and the rotating shaft extend into the inner side end of the shell through bolts to form detachable connection.
Furthermore, the connecting channel between the liquid phase compartment and the second compartment is trumpet-shaped, one end with small sectional area is communicated with the liquid phase compartment, and the other end with large sectional area is communicated with the second compartment.
Furthermore, an annular clamping boss is convexly arranged on the surface of the bottom plate of the rotary drum, which faces the first separation cavity and is positioned at the inner side of the annular boss; the inner wall of the closed end of the rotary drum provided with the feeding opening is provided with a clamping ring groove corresponding to the clamping boss, one end of the screen is clamped in the clamping ring groove, and the other end of the screen is clamped in the clamping boss; the screen and the rotary drum are coaxially arranged.
Further, the pipette extends into the inner side end of the second separation cavity and is bent to form a bending part; the outer side end of the liquid suction pipe, which is positioned on the casing, is connected with a liquid suction pump.
The beneficial effects of the utility model reside in that:
the vacuum device divides the inner space of the rotary drum into a first compartment and a second compartment which are sequentially arranged along the axial direction of the rotary drum through the design of the bottom plate of the rotary drum; through the design of the screen mesh, the outer wall of the screen mesh is matched with the inner wall of the first separation cavity of the rotary drum to form a liquid phase separation cavity, and a connecting channel is arranged between the liquid phase separation cavity and the second separation cavity of the rotary drum;
during the working process, the material is attached to the filter bag, the liquid phase enters a liquid phase compartment between the screen and the rotary drum after passing through the filter bag and the screen, and due to the action of centrifugal force, the liquid phase is continuously discharged to the inner side of the second compartment through a connecting channel on the rotary drum and then discharged through the liquid suction pipe.
During the working process, the materials gradually form a filter cake, the inner side of the liquid phase compartment gradually becomes a closed space, and after the liquid in the space is discharged by centrifugal force, the liquid phase compartment becomes a vacuum space; pressure difference is formed between the space on the inner side of the screen where the materials are located and the liquid phase compartment, which is equivalent to pressurizing and separating the materials, and the separating effect is increased.
Drawings
Fig. 1 is a schematic structural view of a high dewatering efficiency vacuum apparatus for a siphon scraper centrifuge according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Referring to fig. 1, a high dehydration efficiency vacuum apparatus for siphon scraper centrifuge, the apparatus includes: the device comprises a machine shell 1, wherein a feed inlet 11 is formed in one side of the machine shell 1; the rotating shaft 2 extends into the inner side of the casing 1 from the other side of the casing 1; the rotary drum 3 is in a tube shape, the rotary drum 3 is arranged on the inner side of the machine shell 1, one open end of the rotary drum 3 faces to the feed inlet 11 of the machine shell 1, and the other open end of the rotary drum 3 extends into the inner side end of the machine shell 1 towards the rotating shaft 2; the drum bottom plate 4 is internally connected to the inner wall of the drum 3 far away from the feeding hole 11 of the machine shell 1, the drum bottom plate 4 divides the inner space of the drum 3 into a first compartment 31 and a second compartment 32 which are sequentially arranged along the axial direction of the drum 3, the end of the rotating shaft 2, which extends into the inner side of the machine shell 1, extends into the second compartment 32 and is connected with the drum bottom plate 4, and the rotating shaft 2 rotates to drive the drum bottom plate 4 to drive the drum 3 to rotate; the screen 5 is in a shape of a tube, the screen 5 is arranged in the first separation cavity 31 of the rotary drum 3 along the axial direction of the rotary drum 3, the outer wall of the screen 5 is matched with the inner wall of the first separation cavity 31 of the rotary drum 3 to form a liquid phase separation chamber 33, and a connecting channel 34 is arranged between the liquid phase separation chamber 33 and the second separation cavity 32 of the rotary drum 3; the filter bag 6 is attached to the inner wall of the screen 5 along the inner circumference of the screen 5; and a pipette 7, one end of the pipette 7 extends into the inner side of the machine shell 1 and the inner side of the second compartment 32 of the rotary drum 3.
Furthermore, a ring platform 35 is convexly arranged on the outer wall of the rotary drum 3 close to one end of the rotary shaft 2 along the outer circumference of the rotary drum to form a stepped structure of the rotary drum 3; the inner diameter of the drum 3 corresponding to the second compartment 32 is larger than the inner diameter of the drum 3 corresponding to the first compartment 31.
Furthermore, the rotary drum 3 is a pipe body with two closed ends, the closed end of the rotary drum facing the feed port 11 of the casing 1 is provided with a feed opening 36, the closed end of the rotary drum facing the rotating shaft 2 is provided with a socket 37, and the inner diameter of the socket 37 is larger than that of the feed opening 36.
Furthermore, an annular boss 38 is convexly arranged on the inner wall of the rotary drum 3 close to one end of the insertion opening 37 along the inner circumference of the rotary drum 3, and the rotary drum bottom plate 4 is clamped on the annular boss 38.
Further, the drum base plate 4 is detachably connected with the annular boss 38 through the bolt 8.
Furthermore, the drum bottom plate 4 extends into the inner side end of the casing 1 through the bolt 8 and the rotating shaft 2 to form a detachable connection.
Further, the connecting passage 34 between the liquid phase compartment 33 and the second compartment 32 is formed in a trumpet shape, and one end having a small sectional area is communicated with the liquid phase compartment 33 and one end having a large sectional area is communicated with the second compartment 32.
Further, an annular clamping boss 41 is convexly arranged on the surface of the drum base plate 4 facing the first partition 31 and located on the inner side of the annular boss 38; the inner wall of the closed end of the rotary drum, which is provided with the feeding opening 36, is provided with a clamping ring groove 361 corresponding to the clamping boss 41, one end of the screen 5 is clamped in the clamping ring groove 361, and the other end of the screen 5 is clamped in the clamping boss 41; the screen 5 is arranged coaxially with the drum 3.
Further, the pipette 7 protrudes into the inner side of the second compartment 32 and is bent to form a bent portion 71; a liquid suction pump (not shown) is connected to the liquid suction pipe 7 at the outer end of the casing 1.
The utility model relates to a high dehydration efficiency vacuum device for siphon scraper centrifuge, which divides the inner space of a rotary drum 3 into a first separation chamber 31 and a second separation chamber 32 which are sequentially arranged along the axial direction of the rotary drum 3 through the design of a rotary drum bottom plate 4; through the design of the screen 5, the outer wall of the screen 5 is matched with the inner wall of the first compartment 31 of the rotary drum 3 to form a liquid phase compartment 33, and a connecting channel 34 is arranged between the liquid phase compartment 33 and the second compartment 32 of the rotary drum;
during operation, the material sticks to the filter bag 6, the liquid phase passes through the filter bag 6 and the screen cloth 5 and enters the liquid phase compartment 33 between the screen cloth 5 and the drum 3, and due to the centrifugal force, the liquid phase continues to be discharged through the connecting channel 34 on the drum 3 to the inside of the second compartment 32, and then is discharged through the pipette 7.
During the working process, the material gradually forms a filter cake, the inner side of the liquid phase compartment 33 gradually becomes a closed space, and after the liquid in the space is discharged by centrifugal force, the liquid phase compartment 33 becomes a vacuum space; pressure difference is formed between the space inside the screen 5 where the materials are located and the liquid phase compartment 33, which is equivalent to pressurizing and separating the materials, and the separating effect is increased.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that various modifications and equivalent arrangements can be made without departing from the scope of the present invention, which is intended to be covered by the appended claims.
Claims (9)
1. A high dewatering efficiency vacuum apparatus for a siphon drag centrifuge, the apparatus comprising:
the device comprises a shell, a feed inlet and a discharge outlet, wherein one side of the shell is provided with the feed inlet;
the rotating shaft extends into the inner side of the shell from the other side of the shell;
the rotary drum is in a pipe shape and arranged on the inner side of the machine shell, one opening end of the rotary drum faces to the feeding hole of the machine shell, and the other opening end of the rotary drum extends into the inner side end of the machine shell towards the rotating shaft;
the rotary drum bottom plate is internally connected to the inner wall of the rotary drum far away from the feeding port of the machine shell, the inner side space of the rotary drum is divided into a first separation chamber and a second separation chamber which are sequentially distributed along the axial direction of the rotary drum by the rotary drum bottom plate, the inner side end of the rotary shaft extending into the machine shell extends into the inner side of the second separation chamber and is connected with the rotary drum bottom plate, and the rotary shaft rotationally drives the rotary drum bottom plate to drive the;
the screen is in a tube shape, the screen is arranged in a first separation cavity of the rotary drum along the axial direction of the rotary drum, the outer wall of the screen is matched with the inner wall of the first separation cavity of the rotary drum to form a liquid phase separation cavity, and a connecting channel is arranged between the liquid phase separation cavity and a second separation cavity of the rotary drum;
the filter bag is attached to the inner wall of the screen along the inner circumference of the screen;
and one end of the liquid suction pipe extends into the inner side of the machine shell and the inner side of the second separation cavity of the rotary drum.
2. The vacuum device with high dewatering efficiency for the siphon scraper centrifuge as claimed in claim 1, wherein the outer wall of the rotary drum near one end of the rotating shaft is provided with a ring platform along the outer circumference of the rotary drum to form a stepped structure of the rotary drum;
the inner diameter of the rotary drum corresponding to the second separation chamber is larger than that of the rotary drum corresponding to the first separation chamber.
3. The vacuum apparatus with high dewatering efficiency for siphon scraper centrifuge as claimed in claim 1 or 2, wherein the drum is a tube with two closed ends, the closed end of the drum facing the feeding port of the casing is provided with a feeding opening, the closed end of the drum facing the rotating shaft is provided with a socket, and the inner diameter of the socket is larger than the inner diameter of the feeding opening.
4. The vacuum device with high dewatering efficiency for the siphon scraper centrifuge as claimed in claim 3, wherein the inner wall of the drum near the spigot end is provided with an annular boss along the inner circumference of the drum, and the bottom plate of the drum is clamped to the annular boss.
5. The vacuum apparatus with high dewatering efficiency for siphon scraper centrifuge according to claim 4, wherein the bottom plate of the rotary drum is detachably connected with the annular boss through bolts.
6. The vacuum device with high dewatering efficiency for the siphon scraper centrifuge as claimed in claim 1, 4 or 5, wherein the bottom plate of the rotary drum is detachably connected with the inner end of the casing extending into the rotary shaft through a bolt.
7. The vacuum apparatus with high dewatering efficiency for a siphon drag centrifuge according to claim 1, wherein the connecting passage between the liquid phase compartment and the second compartment is formed in a trumpet shape, and one end with a small cross-sectional area is communicated with the liquid phase compartment and one end with a large cross-sectional area is communicated with the second compartment.
8. The vacuum apparatus with high dewatering efficiency for siphon scraper centrifuge according to claim 4, wherein the surface of the bottom plate of the rotary drum facing the first compartment and located inside the annular boss is provided with an annular clamping boss;
the inner wall of the closed end of the rotary drum provided with the feeding opening is provided with a clamping ring groove corresponding to the clamping boss, one end of the screen is clamped in the clamping ring groove, and the other end of the screen is clamped in the clamping boss;
the screen and the rotary drum are coaxially arranged.
9. The vacuum apparatus with high dewatering efficiency for siphon scraper centrifuge according to claim 1, wherein the suction pipe is bent to form a bending part by extending into the inner end of the second compartment; the outer side end of the liquid suction pipe, which is positioned on the casing, is connected with a liquid suction pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020446873.6U CN211964617U (en) | 2020-03-31 | 2020-03-31 | High-dehydration-efficiency vacuum device for siphon scraper centrifuge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020446873.6U CN211964617U (en) | 2020-03-31 | 2020-03-31 | High-dehydration-efficiency vacuum device for siphon scraper centrifuge |
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| CN211964617U true CN211964617U (en) | 2020-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011591A (en) * | 2021-09-18 | 2022-02-08 | 安徽东至广信农化有限公司 | Centrifugal machine for producing glyphosate and use method thereof |
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- 2020-03-31 CN CN202020446873.6U patent/CN211964617U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011591A (en) * | 2021-09-18 | 2022-02-08 | 安徽东至广信农化有限公司 | Centrifugal machine for producing glyphosate and use method thereof |
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