CN210700659U - Combined rotary drum nozzle of disc centrifugal separator - Google Patents
Combined rotary drum nozzle of disc centrifugal separator Download PDFInfo
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- CN210700659U CN210700659U CN201921577423.4U CN201921577423U CN210700659U CN 210700659 U CN210700659 U CN 210700659U CN 201921577423 U CN201921577423 U CN 201921577423U CN 210700659 U CN210700659 U CN 210700659U
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Abstract
A combined rotary drum nozzle of a disc centrifugal separator comprises a nozzle seat, a nozzle core and an O-shaped rubber sealing ring. The nozzle seat is arranged in a radial through hole positioned on the excircle of the rotary drum, the center of the nozzle seat is provided with a through hole, the front end of the hole is a conical horn mouth, a convex block at the tail part of the nozzle seat can tightly press a joint surface corresponding to the groove under the action of centrifugal force during working, the phenomenon that the nozzle falls off is avoided, and the nozzle core with the spray holes is arranged through a radial groove on a rotary drum II of the separator and is rotationally locked; an O-shaped rubber sealing ring is arranged on the excircle of the nozzle seat to prevent liquid from leaking. The utility model has the advantages that part is small in quantity, simple structure, installs and removes the convenience, and the part is connected the reliability and is high, and nozzle outlet direction is accurate, and the orifice runner does not have the turn, is difficult to appear the material and blocks up, and the separating centrifuge operation is stable.
Description
Technical Field
The invention belongs to the technical field of centrifugal separation machinery, and particularly relates to a combined type rotary drum nozzle of a disc type centrifugal separator.
Background
A disk-type centrifugal separator is a widely used centrifugal separation machine, the main part of which is a rotary drum with a conical disk group inside, when in use, a transmission device drives the rotary drum to rotate at a high speed, materials enter the rotary drum from a feeding pipeline, the solid-liquid materials are separated in a disk gap by the action of centrifugal force, and the mixed materials can obtain a solid phase with low moisture content and a high-purity liquid phase through the separation process of the centrifugal separator.
The inner cavity of the rotary drum of the disc centrifugal separator is generally biconical, can compress solid matters and improve the concentration, a plurality of nozzles are uniformly distributed on the outer edge of the rotary drum, spray holes on the nozzles are communicated with the inside of the rotary drum, when the rotary drum rotates, the solid matters of insoluble matters in materials are gathered to the outside under the action of centrifugal force and sprayed out from the spray holes of the nozzles in a slurry form at high speed, and clarified liquid phase flows out from an outlet in the center of the rotary drum, so that the aim of solid-liquid separation is fulfilled.
The nozzle is a key part of the separator, and the structure and the size of the spray hole have great influence on the separation effect. Due to the high flow rate and pressure of the material through the nozzle, the solid matter tends to wear the nozzle material at high velocity through the nozzle. The rotary drum nozzle of the disc centrifuge in the prior art is usually made of wear-resistant materials such as hard alloy and is designed into a combined detachable structure, and the nozzle is replaced regularly according to the wear condition of a spray hole. One way is to mount the nozzle on the drum directly by using a radial threaded hole, the nozzle has a simple structure and has the defect that the drum of the separator is scrapped once the threaded hole is damaged; the other mode is that the nozzle is arranged in a hole at the tangential direction of the rotary drum, and the structure has the disadvantages that the inclined direction of the spray hole can change along with the rotation of the nozzle during installation, the technical requirement on installation and maintenance is higher, and the unstable working state of the disc separator is easily caused by the inconsistent inclined direction of the outlet of the nozzle during working; in addition, the nozzle mounting holes are machined on the rotary drum along the tangential direction, the structure is complex, and the influence on the strength of the rotary drum is large.
Disclosure of Invention
To the shortcoming that exists among the disc centrifuge rotor drum nozzle prior art, the utility model provides a modular rotor drum nozzle comprises nozzle holder, nozzle core and O shape rubber seal, and the same nozzle evenly distributed in the separating centrifuge rotor drum outside of a plurality of structures. The cylindrical nozzle seat is arranged in a radial through hole positioned on the excircle of the rotary drum, four lugs which are symmetrically distributed at intervals of 90 degrees are arranged at the tail part of the nozzle seat and are respectively positioned in four corresponding grooves at the inner side of the through hole of the rotary drum, and under the action of centrifugal force during working, the four lugs at the tail part of the nozzle seat can compress the joint surfaces of the corresponding grooves, so that the phenomenon of nozzle falling is avoided; the center of the nozzle seat is provided with a through hole, the front end of the hole is a conical horn mouth, the front part of the nozzle seat is provided with a radial groove, the upper end of the groove is opened, the cross section of the groove is rectangular, the bottom of the groove is an arc surface, and the arc surface and the outer cylindrical surface of the nozzle seat are coaxial; the nozzle core is positioned in the radial groove of the nozzle seat, the cross section shape and the size of the nozzle core are the same as those of the radial groove of the nozzle seat, the lower surface of the nozzle core is superposed with the arc surface at the bottom of the radial groove of the nozzle seat, the upper surface of the nozzle core is superposed with the outer cylindrical surface of the nozzle seat, the center of the nozzle core is provided with a spray hole, the diameter of the spray hole is smaller than that of the central through hole of the nozzle seat, and the axis of the spray hole is superposed with the axis; in order to improve the wear resistance, the material of the nozzle core is high-hardness hard alloy or boron carbide or aluminum oxide; in order to install the nozzle core, a horizontal radial groove is formed in the position, corresponding to the nozzle core, on the outer side of the through hole of the separator drum, the width of the groove is consistent with that of the nozzle core, and the bottom of the groove is overlapped with the lower surface of the nozzle core; an annular groove is formed in the outer circle of the nozzle seat, an O-shaped rubber sealing ring is arranged in the annular groove, and the sealing ring is used for preventing liquid in the rotary drum from leaking out when the separator works.
When the nozzle is installed, the O-shaped rubber sealing ring is arranged in the annular groove on the excircle of the nozzle seat, then the nozzle seat is inserted into the radial through hole of the rotary drum from the inside to the outside of the rotary drum, the angle of the nozzle seat is adjusted, the radial groove on the outer side of the through hole of the rotary drum of the centrifuge is aligned with the radial groove on the front part of the nozzle seat, the nozzle seat is pulled outwards, the lug on the tail part of the nozzle seat enters the corresponding groove on the inner side of the through hole of the rotary drum of the separator, the nozzle core is inserted into the radial groove on the front part of the nozzle seat, then the nozzle seat is pushed inwards, the lug on the tail part of the nozzle seat is separated from the corresponding groove on the inner side of the through hole of the rotary drum, after the nozzle seat is rotated for 90 degrees, the top of the nozzle core can be blocked at the.
Compared with the rotary drum nozzle of the disc type centrifugal separator in the prior art, the rotary drum nozzle of the disc type centrifugal separator has the advantages of small number of parts, simple structure, convenience in assembly and disassembly, high connection reliability and good sealing performance. The jet holes are along the axis of the nozzle and are not influenced by the rotating angle when the nozzle body is installed, the correct direction and consistency of each jet hole are easy to ensure, and in addition, the flow channels of the jet holes are not bent, so that material blockage is not easy to occur, and the running stability of the separator is ensured.
Drawings
The invention is further illustrated below with reference to the figures and examples.
FIG. 1 is a vertical sectional structural view of an embodiment of the present invention.
Fig. 2 is a horizontal sectional structural view and left and right side views of the embodiment of the present invention.
Reference numbers of parts in the drawings: 1-nozzle seat, 2-nozzle core, 3-O-shaped rubber sealing ring and 4-separator drum.
Detailed Description
The technical scheme of the invention is described in detail in the following with reference to the embodiment of the attached drawings.
The shape of the nozzle seat (1) is cylindrical, a through hole is formed in the center of the nozzle seat, the front end of the through hole is a conical horn mouth, and four convex blocks which are symmetrically distributed at intervals of 90 degrees are arranged at the tail of the nozzle seat (1); a plurality of radial through holes are formed in the separator drum (4), four grooves are formed in the inner sides of the through holes, the nozzle seat (1) is arranged in the through holes, and a projection at the tail part of the nozzle seat (1) is arranged in the groove of the separator drum (4) to realize axial and circumferential positioning; when the centrifugal separator works, under the action of centrifugal force, the four bumps at the tail part of the nozzle seat (1) can press the joint surface of the corresponding groove on the separator drum (4) tightly, so that the phenomenon of nozzle falling is avoided; the front part of the nozzle seat (1) is provided with a radial groove, the upper end of the groove is opened, the cross section of the groove is rectangular, the bottom of the groove is an arc surface, and the arc surface and the outer cylindrical surface of the nozzle seat (1) have the same axis; the nozzle core (2) is positioned in a radial groove of the nozzle seat (1), the cross section shape and size of the nozzle core (2) are the same as those of the radial groove at the front part of the nozzle seat (1), the lower surface of the nozzle core (2) is superposed with the arc-shaped bottom surface of the radial groove of the nozzle seat (1), and the upper surface is superposed with the outer cylindrical surface of the nozzle seat (1); a radial groove in the horizontal direction is formed in the position, corresponding to the nozzle core (2), on the outer side of the through hole in the separator drum (4), the width of the groove is consistent with that of the nozzle core (2), and the bottom of the groove is overlapped with the rear surface of the nozzle core (2); the center of the nozzle core (2) is provided with a spray hole, and the axis of the spray hole is superposed with the axis of the central through hole of the nozzle seat (1); in order to improve the wear resistance, the material of the nozzle core (2) is made of hard alloy with high hardness; an annular groove is formed in the outer circle of the nozzle seat (1), and an O-shaped rubber sealing ring (3) is arranged in the annular groove.
The installation process of the separator nozzle is as follows: the O-shaped rubber sealing ring (3) is placed in an annular groove on the outer circle of a nozzle seat (1), then the nozzle seat (1) is installed in a radial through hole from the inner side of a separator drum (4), the angle of the nozzle seat (1) is adjusted, the radial groove on the outer side of the through hole of the separator drum (4) is aligned with the radial groove in the front of the nozzle seat (1), then the nozzle seat (1) is pulled outwards, a lug at the tail of the nozzle seat enters a corresponding groove in the separator drum (4), a nozzle core (2) is inserted into the radial groove in the front of the nozzle seat, then the nozzle seat (1) is pushed inwards, the lug at the tail of the nozzle seat is separated from the groove in the separator drum (4), the nozzle seat (1) is pulled outwards after being rotated for 90 degrees, the lug at the tail of the nozzle core enters the groove again to be positioned, at the top of the nozzle core (2. Two symmetrical planes are processed at the front end of the nozzle seat (1), so that the nozzle seat (1) can be conveniently moved and rotated in the installation process of the nozzle core (2).
Claims (4)
1. The utility model provides a dish formula centrifuge combination formula rotary drum nozzle, mainly comprises nozzle holder (1), nozzle core (2) and O shape rubber seal (3), its characterized in that: the nozzle seat (1) is cylindrical, the tail part of the nozzle seat is provided with four lugs which are symmetrically distributed at intervals of 90 degrees, the center of the nozzle seat is provided with a through hole, the front end of the hole is a conical horn mouth, the front part of the hole is provided with a radial groove, the upper end of the groove is provided with an opening, the cross section of the groove is rectangular, the bottom of the groove is an arc surface, and the arc surface and the outer cylindrical surface of the nozzle seat (1) are coaxial.
2. A disk centrifuge combined bowl nozzle as defined in claim 1 wherein: the cross section shape and the size of the nozzle core (2) are the same as those of a radial groove on the nozzle seat (1), the lower surface of the nozzle core (2) is coincided with the bottom arc surface of the radial groove of the nozzle seat (1), the upper surface of the nozzle core is coincided with the outer cylindrical surface of the nozzle seat (1), a spray hole is formed in the center of the nozzle core (2), the diameter of the spray hole is smaller than that of a central through hole of the nozzle seat (1), and the axis of the spray hole is coincided with that of the central through hole of the nozzle seat (1).
3. A disk centrifuge combined bowl nozzle as defined in claim 1 wherein: the separator drum (4) is provided with a through hole for installing the nozzle holder (1), the outer side of the through hole is provided with a horizontal radial groove, the width of the groove is consistent with that of the nozzle core (2), and the bottom of the groove is superposed with the lower surface of the nozzle core (2).
4. A disk centrifuge combined bowl nozzle as defined in claim 1 wherein: an annular groove is formed in the outer circle of the nozzle seat (1), and an O-shaped rubber sealing ring (3) is arranged in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577423.4U CN210700659U (en) | 2019-09-20 | 2019-09-20 | Combined rotary drum nozzle of disc centrifugal separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577423.4U CN210700659U (en) | 2019-09-20 | 2019-09-20 | Combined rotary drum nozzle of disc centrifugal separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210700659U true CN210700659U (en) | 2020-06-09 |
Family
ID=70965091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921577423.4U Active CN210700659U (en) | 2019-09-20 | 2019-09-20 | Combined rotary drum nozzle of disc centrifugal separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210700659U (en) |
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2019
- 2019-09-20 CN CN201921577423.4U patent/CN210700659U/en active Active
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