CN112999702B - Continuous gravity film centrifugal discharge disc and application - Google Patents
Continuous gravity film centrifugal discharge disc and application Download PDFInfo
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- CN112999702B CN112999702B CN202110317619.5A CN202110317619A CN112999702B CN 112999702 B CN112999702 B CN 112999702B CN 202110317619 A CN202110317619 A CN 202110317619A CN 112999702 B CN112999702 B CN 112999702B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0021—Degasification of liquids by bringing the liquid in a thin layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
- B01D19/0047—Atomizing, spraying, trickling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
- B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
- B01D19/0057—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused the centrifugal movement being caused by a vortex, e.g. using a cyclone, or by a tangential inlet
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Abstract
The invention discloses a continuous gravity film centrifugal discharge disc and application, belonging to the field of vacuum film separation. Under vacuum environment, the continuous gravity film centrifugation row of this application expects the dish and utilizes the physics phenomenon of centrifugal gravity, causes the thick liquids to prepare the effect in storehouse through former feed bin, elementary gravity film storehouse, second grade gravity film storehouse and injection, carries out many times of reciprocating cycle filmization and gravity extrusion, and the inside bubble of thick liquids is discharged uninterruptedly in succession. The material discharging disc well solves the technical problem of continuous and thorough bubble discharging of the slurry, and the structure can deal with the pretreatment work of continuous separation bubbles of the slurry, so that the later process is guaranteed to be smoothly implemented. The invention removes the residual bubbles in the slurry in a pure physical mode to achieve an ideal degassing effect.
Description
Technical Field
The application relates to the field of film chemical separation, in particular to a continuous gravity film centrifugal discharge disc and application. More specifically, the application provides a distribution tray structure of a slurry bubble continuous separation device, in particular to a film-forming spraying distribution discharge tray for carrying out multiple times of film-forming separation of bubbles in a continuous defoaming process in a closed cavity.
Background
In the fields of fine chemistry industry, electronic industry, battery industry, novel material preparation and the like, raw materials subjected to stirring or pretreatment can be finally canned or applied to subsequent production only by separating internal bubbles. At the present stage, the defoaming treatment adopts a standing sealed tank and a stirring paddle operation mode driven by a motor, the capacity is extremely low, the probability of secondary pollution to raw materials is extremely high, and the waste of the raw materials is extremely serious.
In order to solve the problem of bubble separation, the Chinese patent application CN201110451094.0 discloses an online continuous degassing device, and the Chinese patent application CN201711236021.3 discloses an online vacuum degassing device; however, neither of these solutions relates to a specific solution for the distribution tray. Chinese patent application CN201621403866.8 discloses a continuous vacuum degassing deaerator, wherein a rotary drum adopts a combined structure; the drum is a two-layer drum with equal height structure, and the partition function is only set for equally distributing the positions of the inner and outer layers of drums. However, a drum of this construction does not solve the uniform distribution problem well for high viscosity slurries and is difficult to clean; meanwhile, the structure has high requirement on machining precision, so that the cost is high; in addition, the air bubbles are not separated cleanly, so that the improvement of the quality of the finished product is easily influenced.
Therefore, a new device and/or method is urgently needed to solve the above problems.
Disclosure of Invention
The invention of the present application aims to: aiming at the problems, the continuous gravity film centrifugal discharge disc and the application thereof are provided. More specifically, the application provides a film-forming spraying distribution discharging disc with a brand-new structure and used for discharging separated bubbles through multiple gravity thin-film spraying. Adopt the row material tray of this application, at the continuous degasification in-process of thick liquids, through rotatory centrifugal force's reciprocal change, reciprocal film forming back vacuum gravity continuous deaeration many times, obviously increase degasification effect, promote degassing efficiency.
In order to achieve the purpose, the following technical scheme is adopted in the application:
a continuous gravity film centrifugal discharging disc comprises a connecting shaft sleeve, a discharging bottom plate, a raw material bin annular plate, a primary gravity film bin annular plate, a secondary gravity film bin annular plate and a spraying annular plate, wherein the connecting shaft sleeve is used for being connected with a driving main shaft of an equipment main machine;
the raw material bin ring plate is connected with the discharge bottom plate, the discharge bottom plate can provide support for the raw material bin ring plate, a bin lower ring groove is formed between one end, facing the discharge bottom plate, of the raw material bin ring plate and the discharge bottom plate, and a raw material bin for containing slurry to be treated is formed between the inner wall of the raw material bin ring plate and the connecting shaft sleeve;
the bottom end of the primary gravity film bin annular plate is connected with the discharge bottom plate, the discharge bottom plate can provide support for the primary gravity film bin annular plate, a primary gravity film bin is formed between the inner wall of the primary gravity film bin annular plate and the outer wall of the raw material bin annular plate, slurry in the raw material bin can enter the primary gravity film bin through the bin lower annular groove and move upwards from bottom to top along the inner wall of the primary gravity film bin annular plate, a plurality of primary gravity spraying hole grooves are formed in the primary gravity film bin annular plate, the slurry moving upwards along the inner wall of the primary gravity film bin annular plate can be sprayed out through the primary gravity spraying hole grooves, a first vacuum through groove is formed in the upper end of the primary gravity film bin, and air bubbles in the slurry in the primary gravity film bin can be discharged through the first vacuum through groove under the action of negative pressure;
the bottom end of the secondary gravity film bin annular plate is connected with the discharge bottom plate, the discharge bottom plate can provide support for the secondary gravity film bin annular plate, a secondary gravity film bin is formed between the inner wall of the secondary gravity film bin annular plate and the outer wall of the primary gravity film bin annular plate, slurry in the secondary gravity film bin can enter the secondary gravity film bin through the primary gravity spraying hole groove and can move downwards along the inner wall of the secondary gravity film bin annular plate from top to bottom, a plurality of secondary discharge hole grooves are formed in the secondary gravity film bin annular plate, the slurry moving downwards along the inner wall of the secondary gravity film bin annular plate can be sprayed out through the secondary discharge hole grooves, a second vacuum through groove is formed in the upper end of the secondary gravity film bin, and bubbles in the slurry in the secondary gravity film bin can be discharged through the second vacuum through groove under the action of negative pressure;
spray the crown plate bottom and link to each other with row's material bottom plate and arrange the material bottom plate and can provide the support for spraying the crown plate, spray the crown plate and include lower extreme and row's injection bottom plate, mesh screen wall that the material bottom plate links to each other, it sprays the thick liquids that prepare storehouse and second grade gravity film storehouse to form between injection bottom plate inner wall and the second grade gravity film storehouse crown plate outer wall to spray and prepare the storehouse and along spraying the crown plate inner wall from bottom to top upward movement in the storehouse through the entering of second grade discharge hole groove, it is continuous as an organic whole from bottom to top to spray bottom plate and mesh screen wall, it sprays the thick liquids that prepare in the storehouse and can spray away through the row's of material jet orifice of mesh screen wall from upward movement and under the centrifugal force effect on the mesh screen wall to be provided with a plurality of thick liquids.
Along the direction from inside to outside, the primary gravity film bin and the secondary gravity film bin form a gravity film component; at least one gravity film component is arranged between the raw material bin and the spraying preparation bin and arranged from inside to outside along the radial direction of the discharging bottom plate.
One to five gravity film components are arranged between the raw material bin and the spraying preparation bin.
The discharging bottom plate is provided with a material containing groove, and the material containing groove is positioned in the raw material bin.
And a secondary gravity film forming surface is formed on the inner wall of the secondary gravity film bin annular plate.
Still include fixing nut, connecting screw, fastening connecting plate, be provided with in the connecting sleeve with the first connecting groove of drive spindle matched with of equipment host computer, drive spindle sets up in first connecting groove and drive spindle is provided with first threaded connection section towards the one end of arranging the material bottom plate, be provided with on the fastening connecting plate with first threaded connection section complex first connecting hole, with connecting screw matched with second connecting hole, first threaded connection section of drive spindle can pass first connecting hole and fixing nut and can be connected first threaded connection section as an organic whole with the fastening connecting plate, connecting screw can pass the second connecting hole of fastening connecting plate and will fasten the connecting plate and arrange the material bottom plate and be connected as an organic wholely.
The first connecting hole and the second connecting hole are through holes respectively, and the fixing nut is in threaded connection with the first threaded connecting section of the driving spindle and the connecting screw rod is in threaded connection with the discharging bottom plate respectively.
The section of the raw material bin ring plate perpendicular to the axial direction of the raw material bin ring plate is in a circular ring shape.
The annular is located one side and feed bin lower ring groove equipartition in the axial of former feed bin crown plate near arranging the material bottom plate under the feed bin under the former feed bin crown plate, elementary gravity sprays the hole groove and is located one side and elementary gravity of keeping away from row material bottom plate on the elementary gravity film storehouse crown plate and sprays the hole groove equipartition in the axial of elementary gravity film storehouse crown plate, the annular place horizontal plane is located elementary gravity and sprays hole groove place horizontal plane below under the feed bin.
The primary gravity jet hole groove is one or more of a circular hole and a strip-shaped hole.
The primary gravity film bin ring plate and the secondary gravity film bin ring plate are respectively in a circular truncated cone shape along a section perpendicular to the axial direction of the primary gravity film bin ring plate and a section perpendicular to the axial direction of the secondary gravity film bin ring plate.
The radius of one end, far away from the material discharging bottom plate, of the primary gravity film bin annular plate is larger than the radius of one end, close to the material discharging bottom plate, of the primary gravity film bin annular plate, and the radius of one end, far away from the material discharging bottom plate, of the secondary gravity film bin annular plate is smaller than the radius of one end, close to the material discharging bottom plate, of the secondary gravity film bin annular plate.
The included angle between the bus of the secondary gravity film bin ring plate and the bottom of the secondary gravity film bin ring plate is recorded as a first included angle a, the included angle between the bus of the primary gravity film bin ring plate and the upper bottom of the primary gravity film bin ring plate is recorded as a third included angle c, the first included angle a is an obtuse angle, and the third included angle c is an acute angle.
The spraying bottom plate is in a circular truncated cone shape along a section perpendicular to the axial direction of the spraying bottom plate, and an included angle formed by a bus of the spraying bottom plate and a plane where the discharging bottom plate is located is a second included angle b.
The radius of one end, far away from the material discharge bottom plate, of the spraying bottom plate is larger than the radius of one end, close to the material discharge bottom plate, of the spraying bottom plate.
The second included angle b is an acute angle.
The horizontal plane of the secondary material discharge hole groove is located below the horizontal plane of the primary gravity jet hole groove, and the secondary material discharge hole grooves are uniformly arranged along the circumferential direction of the secondary gravity film bin annular plate.
The second-level discharge hole groove is one or more of a circular hole and a strip-shaped hole.
One end, facing the discharge bottom plate, of the raw material bin annular plate is fixedly connected with the discharge bottom plate, and a plurality of raw material through grooves are formed in the raw material bin annular plate and are the lower annular grooves of the bin;
or one end of the raw material bin ring plate, which is far away from the discharge bottom plate, is fixedly connected with the primary gravity film bin ring plate, an annular gap is formed between the raw material bin ring plate and the discharge bottom plate, and the annular gap is the lower annular groove of the bin.
The application of the continuous gravity film centrifugal discharge disc in slurry degassing is provided.
The continuous gravity film centrifuge discharge tray was used in vacuum degassing of medium and high viscosity slurries.
To aforementioned problem, the application provides a continuous gravity film centrifugation row material dish, it includes connecting sleeve, arranges material bottom plate, former feed bin ring board, elementary gravity film storehouse ring board, second grade gravity film storehouse ring board, sprays the ring board. The connecting shaft sleeve is used for being connected with a driving main shaft of the equipment main machine, and the discharging bottom plate is connected with the connecting shaft sleeve; the connecting shaft sleeve, the discharge bottom plate and the part connected with the discharge bottom plate are driven to synchronously rotate through the fixed connection of the driving main shaft and the connecting shaft sleeve, and then continuous gravity centrifugal film degassing of slurry on the discharge disc is realized in a vacuum environment. Here, the present application provides a specific connection method: this row material dish still includes fixation nut, connecting screw, the fastening connecting plate, be provided with the first connecting slot with the drive spindle matched with of equipment host computer in the connecting sleeve, drive spindle sets up in first connecting slot and drive spindle is provided with first threaded connection section towards the one end of arranging the material bottom plate, be provided with on the fastening connecting plate with first threaded connection section complex first connecting hole, with connecting screw matched with second connecting hole, first threaded connection section of drive spindle can pass first connecting hole and fixation nut and can be connected first threaded connection section and fastening connecting plate as an organic wholely, connecting screw can pass the second connecting hole of fastening connecting plate and will fasten the connecting plate and arrange the material bottom plate and be connected as an organic wholely.
In this application, will arrange the material bottom plate and cut apart into former feed bin, elementary gravity film storehouse, second grade gravity film storehouse, spray and prepare the storehouse, 4 annular spaces in total, and former feed bin, elementary gravity film storehouse, second grade gravity film storehouse, spray and prepare the storehouse all with outside vacuum environment intercommunication.
Former feed bin crown plate links to each other with row material bottom plate, can provide the support for former feed bin crown plate through arranging the material bottom plate, and former feed bin crown plate is provided with feed bin lower ring groove towards the one end of arranging the material bottom plate and between arranging the material bottom plate, forms the former feed bin that is used for holding pending thick liquids between the inner wall of former feed bin crown plate and the connecting sleeve. In this structure, two kinds of connected modes can be adopted with row's material bottom plate to former feed bin crown plate:
1) Direct connection
One end of the raw material bin annular plate, facing the discharge bottom plate, is fixedly connected with the discharge bottom plate, and a plurality of raw material through grooves are formed in the raw material bin annular plate and are the lower annular grooves of the bin;
2) Indirect connection
One end and elementary gravity film storehouse crown plate fixed connection of arranging the material bottom plate are kept away from to former feed bin crown plate, and elementary gravity film storehouse crown plate with arrange material bottom plate fixed connection, and former feed bin crown plate links to each other with arranging the material bottom plate indirectly through elementary gravity film storehouse crown plate promptly, and forms annular gap between former feed bin crown plate and the row material bottom plate, this annular gap is annular under the feed bin promptly.
The bottom end of the primary gravity film bin annular plate is connected with the discharging bottom plate, and the primary gravity film bin annular plate is supported by the discharging bottom plate. A primary gravity film bin is formed between the inner wall of the ring plate of the primary gravity film bin and the outer wall of the ring plate of the raw material bin, and slurry in the raw material bin can enter the primary gravity film bin through the lower ring groove of the bin and move upwards from bottom to top along the inner wall of the ring plate of the primary gravity film bin. The primary gravity film bin annular plate is provided with a plurality of primary gravity jet hole grooves, and the slurry moving upwards along the inner wall of the primary gravity film bin annular plate can be jetted out through the primary gravity jet hole grooves. A first vacuum through groove is formed in the upper end of the primary gravity film bin, and air bubbles in slurry in the primary gravity film bin can be discharged through the first vacuum through groove under the negative pressure effect. When the upper part of the primary gravity film bin ring plate is not connected with the raw material bin ring plate, a first vacuum through groove communicated with the external vacuum environment is naturally formed above the primary gravity film bin. When the upper part of the primary gravity film bin annular plate is connected with the raw material bin annular plate, slurry in the raw material bin can seal the lower annular groove of the bin, and if the upper part of the primary gravity film bin is not provided with a corresponding first vacuum through groove, the interior of the primary gravity film bin cannot be communicated with the external vacuum environment, so that a negative pressure environment cannot be provided for the slurry in the primary gravity film bin, and the separation of bubbles in the slurry in the primary gravity film bin is not facilitated; at this time, a first vacuum through groove needs to be arranged at the upper end of the primary gravity film bin, so that the primary gravity film bin is communicated with the external vacuum environment. Furthermore, the section of the raw material bin ring plate perpendicular to the axial direction of the raw material bin ring plate is in a ring shape. Further, the lower bin annular grooves are positioned on one side, close to the discharge bottom plate, of the raw material bin annular plate, and are uniformly distributed in the axial direction of the raw material bin annular plate; the primary gravity spraying hole grooves are positioned on one side, far away from the discharge bottom plate, of the primary gravity film bin annular plate, and are uniformly distributed in the axial direction of the primary gravity film bin annular plate; the horizontal plane of the lower ring groove of the storage bin is positioned below the horizontal plane of the primary gravity jet hole groove. In the application, the lower ring grooves of the storage bin are uniformly distributed along the rotary circumference and can be arranged into holes or groove shapes; the primary gravity jet hole slots are uniformly distributed along the rotary circumference and can be arranged into holes or slot type.
The bottom end of the second-level gravity film bin annular plate is connected with the discharging bottom plate, and the second-level gravity film bin annular plate is supported by the discharging bottom plate. And a secondary gravity film bin is formed between the inner wall of the secondary gravity film bin annular plate and the outer wall of the primary gravity film bin annular plate, and slurry in the secondary gravity film bin can enter the secondary gravity film bin through the primary gravity injection hole groove and move downwards from top to bottom along the inner wall of the secondary gravity film bin annular plate. And a plurality of secondary discharge hole grooves are formed in the secondary gravity film bin annular plate, and slurry moving downwards along the inner wall of the secondary gravity film bin annular plate can be sprayed out through the secondary discharge hole grooves. In this application, the horizontal plane that the second grade arranges the material hole groove place is located elementary gravity and sprays hole groove place horizontal plane below, and the second grade arranges the material hole groove along gyration circumference evenly distributed, can set to hole or cell type. Meanwhile, a secondary gravity film forming surface is formed on the inner wall of the secondary gravity film bin annular plate. Simultaneously, second vacuum through groove is provided with on second grade gravity film storehouse, and the bubble in the thick liquids in the second grade gravity film storehouse can lead to the groove through the second vacuum under the negative pressure effect and discharge.
The spray ring plate comprises a spray bottom plate and a mesh screen wall surface, wherein the lower end of the spray bottom plate is connected with the discharge bottom plate, and the spray bottom plate and the mesh screen wall surface are connected into a whole from bottom to top. And a spraying preparation bin is formed between the inner wall of the spraying bottom plate and the outer wall of the second-stage gravity film bin annular plate, and slurry in the second-stage gravity film bin can enter the spraying preparation bin through the second-stage discharge hole groove and move upwards from bottom to top along the inner wall of the spraying annular plate. The wall surface of the mesh screen is provided with a plurality of discharge jet holes, and the slurry in the injection preparation bin can move from bottom to top and is injected out through the discharge jet holes on the wall surface of the mesh screen under the action of centrifugal force. Further, the densely and alternately arranged discharge spray holes are arranged on the wall surface of the annular vertical mesh screen.
In this structure, former feed bin ring plate, elementary gravity film storehouse ring plate, second grade gravity film storehouse ring plate and injection ring plate are in the same place through integrated into one piece, threaded connection or welded fastening, and this is whole through connecting screw and connecting sleeve fixed connection, and whole gravity film centrifugation bin outlet dish is finally installed on the equipment main shaft through the fixation nut connection.
Furthermore, the primary gravity film bin ring plate is in a circular truncated cone shape along a section perpendicular to the axial direction of the primary gravity film bin ring plate, the secondary gravity film bin ring plate is in a circular truncated cone shape along a section perpendicular to the axial direction of the secondary gravity film bin ring plate, and the injection bottom plate is in a circular truncated cone shape along a section perpendicular to the axial direction of the injection bottom plate. The radius of the primary gravity film bin ring plate far away from one end of the discharge bottom plate is larger than the radius of the secondary gravity film bin ring plate near one end of the discharge bottom plate, the radius of the secondary gravity film bin ring plate far away from one end of the discharge bottom plate is smaller than the radius of the secondary gravity film bin ring plate near one end of the discharge bottom plate, and the radius of the spray bottom plate far away from one end of the discharge bottom plate is larger than the radius of the spray bottom plate near one end of the discharge bottom plate. The included angle between the bus of the secondary gravity film bin ring plate and the lower bottom of the secondary gravity film bin ring plate is recorded as a first included angle a, the included angle formed by the bus of the spraying bottom plate and the plane where the discharging bottom plate is located is a second included angle b, the included angle between the bus of the primary gravity film bin ring plate and the upper bottom of the primary gravity film bin ring plate is recorded as a third included angle c, the first included angle a is an obtuse angle, the second included angle b is an acute angle, and the third included angle c is an acute angle. As shown in the figure, the annular wall surface of the secondary gravity film bin is arranged at an intersection angle a with the rotation axis, the annular wall surface of the primary gravity film bin is arranged at an intersection angle c with the rotation axis, and the annular wall surface of the bottom of the injection preparation bin is arranged at an intersection angle b with the rotation axis. Preferably, the primary gravity film bin and the secondary gravity film bin can be used in pairs and arranged between the raw material bin and the spraying preparation bin for multiple times (i.e. the primary gravity film bin and the secondary gravity film bin are arranged in pairs between the raw material bin and the spraying preparation bin along the radial direction of the discharge bottom plate).
Furthermore, a downward material containing groove is formed in the material discharging bottom plate and is located in the raw material bin.
The working process of the discharging disc is as follows:
the driving main shaft of the equipment main machine rotates to drive the connecting shaft sleeve to rotate and drive the discharge bottom plate, the raw material bin, the primary gravity film bin, the secondary gravity film bin and the injection preparation bin to correspondingly synchronously rotate;
after entering a raw material bin through a pipeline, under the action of centrifugal force formed by rotation of a connecting shaft sleeve, slurry with air bubbles forms film diffusion at the bottom of the slurry, and flows into a primary gravity film bin after current limiting control is performed through a lower ring groove of the bin;
after the slurry enters the primary gravity film bin, the slurry with bubbles is pressed by primary gravity, continuous extrusion climbing and film thinning are carried out under the guide of the inner surface inclination angle c of the primary gravity film bin, and the bubbles in the slurry are separated for the first time under the combined action of vacuum and the primary gravity;
when the slurry climbs to the primary gravity jet hole groove at the upper part of the primary gravity film bin, the slurry enters the secondary gravity film bin in rotary operation after passing through the primary gravity jet hole groove;
slurry just entering the interior of the secondary gravity film bin slides downwards along the inner wall surface of the slurry to flow and form a secondary film under the guide of the inclination angle a and the action of centrifugal gravity, and bubbles in the slurry are subjected to secondary separation under the combined action of vacuum and secondary gravity;
after the slurry flows to the bottom space of the secondary gravity film bin, the slurry enters the spraying preparation bin through secondary discharge hole grooves annularly distributed in the bin; the slurry is accumulated at the bottom of the spray preparation bin, reaches the wall surface of the mesh screen under the guidance of the inclination angle b, and is uniformly sprayed and discharged out through the discharge spray holes under strong centrifugal gravity after air bubbles are separated for multiple times.
Under vacuum environment, the continuous gravity film centrifugal discharge disc utilizes the physical phenomenon of centrifugal gravity, causes the slurry to pass through the effects of a raw material bin, a primary gravity film bin, a secondary gravity film bin and a spraying preparation bin, carries out repeated reciprocating circulation thinning and gravity extrusion, and continuously and uninterruptedly discharges bubbles inside the slurry. The material discharging disc well solves the technical problem of continuous and thorough bubble discharging of the slurry, and the structure can deal with the pretreatment work of continuous separation bubbles of the slurry, so that the later process is guaranteed to be smoothly implemented. The invention removes the residual bubbles in the slurry in a pure physical mode to achieve an ideal degassing effect. The defoaming device has the advantages of simple structure, easy cleaning, high efficiency, material saving, no secondary pollution of materials, simple structure, low cost and good defoaming effect. Furthermore, the ring plates of the annular spaces are matched and matched with centrifugal gravity through different inclination angles, and film forming and exhaust are facilitated.
In conclusion, the distribution and discharge disc main body is internally provided with the multi-stage interface plates in an isolated mode, the physical phenomena of centrifugal gravity and interface inclination angle are utilized, the slurry is made into a film through multi-stage reciprocation, the process problem that continuous bubble discharge of the slurry is difficult is well solved, the structure can be used for preprocessing continuous separation bubbles of the slurry with medium and high viscosity, the later process is guaranteed to be smoothly implemented, and the distribution and discharge disc has high application value and application prospect.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a sectional view of the discharge tray of example 1 taken perpendicular to its axial direction.
Reference numerals are as follows: 1. fixing nut, 2, connecting screw, 3, second grade discharge hole groove, 4, spray and prepare the storehouse, 5, the mesh screen wall, 6, discharge the jet orifice, 7, second grade gravity film becomes the membrane face, 8, second grade gravity film storehouse, 9, elementary gravity jet hole groove, 10, elementary gravity film storehouse, 11, annular under the feed bin, 12, former feed bin, 13, connecting axle sleeve, 14, former feed bin crown plate, 15, elementary gravity film storehouse crown plate, 16, second grade gravity film storehouse crown plate, a, first contained angle, b, the second contained angle, c, the third contained angle.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving an equivalent or similar purpose, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Example 1
As shown in the figure, this embodiment provides a continuous gravity film centrifugation row material dish, it includes connecting axle sleeve, arranges material bottom plate, former feed bin crown plate, elementary gravity film storehouse crown plate, second grade gravity film storehouse crown plate, sprays the crown plate. The projection of the material discharging bottom plate in the vertical direction is circular, the connecting shaft sleeve is used for being connected with a driving main shaft of the equipment host, and the material discharging bottom plate is connected with the connecting shaft sleeve. This embodiment provides a concrete connection structure, including fixing nut, connecting screw, fastening connection board, be provided with in the connecting sleeve with the first connecting groove of drive spindle matched with of equipment host computer, drive spindle sets up in first connecting groove and drive spindle is provided with first threaded connection section towards the one end of arranging the material bottom plate, be provided with on the fastening connection board with first threaded connection section matched with first connecting hole, with connecting screw matched with second connecting hole. In the structure, a first threaded connecting section of a driving spindle penetrates through a first connecting hole, and the first threaded connecting section and a fastening connecting plate are connected into a whole through a fixing nut; the connecting screw rod can penetrate through the second connecting hole of the fastening connecting plate and connect the fastening connecting plate and the discharge bottom plate into a whole. Preferably, the first connecting hole and the second connecting hole are through holes respectively, and the fixing nut is in threaded connection with the first threaded connecting section of the driving spindle and the connecting screw rod is in threaded connection with the discharging bottom plate respectively. By adopting the structure, when the driving main shaft rotates, the connecting shaft sleeve and the discharging bottom plate which are connected with the driving main shaft can be driven to synchronously rotate.
In this embodiment, former feed bin crown plate links to each other with row material bottom plate, provides the support for former feed bin crown plate through arranging the material bottom plate, and former feed bin crown plate is the ring form along its axial section of perpendicular to. A feed bin lower annular groove is formed between one end, facing the material discharging bottom plate, of the raw material bin annular plate and the material discharging bottom plate, and a raw material bin is formed between the inner wall of the raw material bin annular plate and the connecting shaft sleeve. In this embodiment, the end of the raw material bin ring plate facing the discharge bottom plate is fixedly connected to the discharge bottom plate, and a plurality of raw material through grooves are formed in the circumferential direction of the raw material bin ring plate, and the raw material through grooves are bin lower ring grooves. The slurry to be treated firstly enters a raw material bin of a discharging disc and then is subjected to subsequent treatment. Furthermore, a material containing groove is formed in the material discharging bottom plate and is positioned in the raw material bin. In this structure, flourishing material recess edge can play the effect of strengthening rib, can increase corresponding intensity under the prerequisite of simplifying row material bottom plate structure.
The bottom end of the primary gravity film bin annular plate is connected with the discharging bottom plate, and the primary gravity film bin annular plate is supported by the discharging bottom plate. A primary gravity film bin is formed between the inner wall of the primary gravity film bin annular plate and the outer wall of the raw material bin annular plate; the slurry in the raw material bin can enter the primary gravity film bin through the lower annular groove of the bin and move upwards from bottom to top along the inner wall of the annular plate of the primary gravity film bin. Meanwhile, a plurality of primary gravity spraying hole grooves are formed in the primary gravity film bin annular plate, and slurry moving upwards along the inner wall of the primary gravity film bin annular plate can be sprayed out through the primary gravity spraying hole grooves; a first vacuum through groove is formed in the upper end of the primary gravity film bin, and air bubbles in slurry in the primary gravity film bin can be discharged through the first vacuum through groove under the negative pressure effect.
The bottom end of the second-level gravity film bin annular plate is connected with the discharging bottom plate, and the second-level gravity film bin annular plate is supported by the discharging bottom plate. A secondary gravity film bin is formed between the inner wall of the secondary gravity film bin annular plate and the outer wall of the primary gravity film bin annular plate; slurry in the secondary gravity film bin enters the secondary gravity film bin through the primary gravity jet hole groove and moves downwards from top to bottom along the inner wall of the annular plate of the secondary gravity film bin, and a secondary gravity film forming surface is formed on the inner wall of the annular plate of the secondary gravity film bin; and a plurality of secondary discharge hole grooves are formed in the secondary gravity film bin annular plate, and the slurry moving downwards along the inner wall of the secondary gravity film bin annular plate can be sprayed out through the secondary discharge hole grooves. Meanwhile, a second vacuum through groove is formed in the upper end of the second-stage gravity film bin, and air bubbles in the slurry in the second-stage gravity film bin can be discharged through the second vacuum through groove under the negative pressure effect.
The bottom end of the spray ring plate is connected with the discharge bottom plate, and the spray ring plate is supported by the discharge bottom plate. The spray ring plate comprises a spray bottom plate and a mesh screen wall surface, wherein the lower end of the spray bottom plate is connected with the discharge bottom plate. And a spraying preparation bin is formed between the inner wall of the spraying bottom plate and the outer wall of the second-stage gravity film bin annular plate, and slurry of the second-stage gravity film bin enters the spraying preparation bin through the second-stage discharge hole groove and moves upwards from bottom to top along the inner wall of the spraying annular plate. The spraying bottom plate and the wall surface of the mesh screen are connected into a whole from bottom to top, the wall surface of the mesh screen is provided with a plurality of discharging jet holes, and the slurry in the spraying preparation bin can move from bottom to top and can be sprayed out through the discharging jet holes on the wall surface of the mesh screen under the action of centrifugal force.
In this embodiment, the primary gravity film bin ring plate and the secondary gravity film bin ring plate are respectively in a circular truncated cone shape along a section perpendicular to the axial direction thereof. The radius of one end, far away from the material discharging bottom plate, of the primary gravity film bin annular plate is larger than the radius of one end, close to the material discharging bottom plate, of the primary gravity film bin annular plate, and the radius of one end, far away from the material discharging bottom plate, of the secondary gravity film bin annular plate is smaller than the radius of one end, close to the material discharging bottom plate, of the secondary gravity film bin annular plate. The included angle between the bus of the secondary gravity film bin ring plate and the lower bottom of the secondary gravity film bin ring plate is recorded as a first included angle a, the included angle between the bus of the primary gravity film bin ring plate and the upper bottom of the primary gravity film bin ring plate is recorded as a third included angle c, the first included angle a is an obtuse angle, and the third included angle c is an acute angle. The bin lower ring groove is positioned on one side, close to the discharge bottom plate, of the raw material bin ring plate and is uniformly distributed in the axial direction of the raw material bin ring plate, the primary gravity spraying hole groove is positioned on one side, far away from the discharge bottom plate, of the primary gravity film bin ring plate and is uniformly distributed in the axial direction of the primary gravity film bin ring plate, and the horizontal plane of the bin lower ring groove is positioned below the horizontal plane of the primary gravity spraying hole groove; the horizontal plane of the secondary discharge hole groove is located below the horizontal plane of the primary gravity jet hole groove, and the secondary discharge hole grooves are uniformly arranged along the circumferential direction of the secondary gravity film bin annular plate. Meanwhile, the section of the spraying bottom plate perpendicular to the axial direction of the spraying bottom plate is in a circular truncated cone shape, the included angle formed by the generatrix of the spraying bottom plate and the plane of the discharging bottom plate is a second included angle b, and the radius of one end, far away from the discharging bottom plate, of the spraying bottom plate is larger than the radius of one end, close to the discharging bottom plate, of the spraying bottom plate. Preferably, the second included angle b is an acute angle. In this embodiment, primary gravity jet hole groove, second grade discharge hole groove are one or two in circular port, the bar hole.
The continuous gravity film centrifugal discharge disc of the embodiment can be used for degassing slurry in a vacuum environment, in particular to vacuum degassing of medium-high viscosity slurry.
The continuous gravity film centrifugal discharging disc of the embodiment is used in a vacuum deaeration deaerator, and the raw material bin, the primary gravity film bin, the secondary gravity film bin and the spraying preparation bin on the continuous gravity film centrifugal discharging disc are all in a vacuum environment, namely the raw material bin, the primary gravity film bin, the secondary gravity film bin and the spraying preparation bin on the continuous gravity film centrifugal discharging disc are respectively communicated with an external vacuum environment. When the device works, the main shaft of the equipment rotates and drives the connecting shaft sleeve to rotate, and simultaneously drives the discharge bottom plate, the raw material bin, the primary gravity film bin, the secondary gravity film bin and the injection preparation bin to synchronously rotate; the slurry to be treated firstly enters a raw material bin through a pipeline, the slurry to be treated with air bubbles forms film divergence at the bottom of the raw material bin under the action of centrifugal force, and flows into a primary gravity film bin after the flow limiting control is carried out through a lower ring groove of the bin; after the slurry enters the primary gravity film bin, the slurry is pressed by the gravity of the slurry, continuous extrusion climbing and film thinning are carried out under the guidance of a third included angle c on the surface of the annular plate of the primary gravity film bin, and bubbles in the slurry are separated for the first time under the combined action of vacuum and the primary gravity; when the slurry climbs to the primary gravity jet hole groove at the upper part of the primary gravity film bin, the slurry enters the secondary gravity film bin in rotary operation through the primary gravity jet hole groove; after the slurry enters the secondary gravity film bin, the slurry slides downwards along the inner wall surface of the secondary gravity film bin to flow and carry out secondary film formation under the guide of a first included angle a on the surface of an annular plate of the secondary gravity film bin and the action of centrifugal force and gravity, and bubbles in the slurry are subjected to secondary separation under the combined action of vacuum and secondary gravity; after the slurry flows to the bottom space of the secondary gravity film bin, the slurry enters the spraying preparation bin through secondary discharge hole grooves annularly distributed in the bin; after the slurry enters the spraying preparation bin, the slurry is accumulated at the bottom of the spraying preparation bin and reaches the wall surface of the mesh screen under the guidance of a second included angle b on the surface of the spraying bottom plate, and the slurry after the air bubbles are separated for many times is uniformly sprayed and discharged out through the discharging and spraying holes under the strong centrifugal gravity.
As an alternative, the one end and the elementary gravity film storehouse crown plate fixed connection of arranging the material bottom plate are kept away from to former feed bin crown plate, and elementary gravity film storehouse crown plate and row material bottom plate fixed connection, and former feed bin crown plate links to each other with row material bottom plate is indirect through elementary gravity film storehouse crown plate promptly, and forms annular gap between former feed bin crown plate and the row material bottom plate, and this annular gap is annular under the feed bin promptly. In the structure, a first vacuum through groove is formed in the upper end of the primary gravity film bin, and air bubbles in slurry in the primary gravity film bin can be discharged through the first vacuum through groove under the action of negative pressure.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of steps disclosed.
Claims (7)
1. A continuous gravity film centrifugal discharge disc is characterized by comprising a connecting shaft sleeve, a discharge bottom plate, a raw material bin annular plate, a primary gravity film bin annular plate, a secondary gravity film bin annular plate and a jet annular plate, wherein the connecting shaft sleeve is connected with a driving main shaft of a main machine of equipment;
the raw material bin ring plate is connected with the discharge bottom plate, the discharge bottom plate can provide support for the raw material bin ring plate, a bin lower ring groove is formed between one end, facing the discharge bottom plate, of the raw material bin ring plate and the discharge bottom plate, and a raw material bin for containing slurry to be treated is formed between the inner wall of the raw material bin ring plate and the connecting shaft sleeve;
the bottom end of the primary gravity film bin annular plate is connected with the discharge bottom plate, the discharge bottom plate can provide support for the primary gravity film bin annular plate, a primary gravity film bin is formed between the inner wall of the primary gravity film bin annular plate and the outer wall of the raw material bin annular plate, slurry in the raw material bin can enter the primary gravity film bin through the bin lower annular groove and move upwards from bottom to top along the inner wall of the primary gravity film bin annular plate, a plurality of primary gravity spraying hole grooves are formed in the primary gravity film bin annular plate, the slurry moving upwards along the inner wall of the primary gravity film bin annular plate can be sprayed out through the primary gravity spraying hole grooves, a first vacuum through groove is formed in the upper end of the primary gravity film bin, and air bubbles in the slurry in the primary gravity film bin can be discharged through the first vacuum through groove under the action of negative pressure;
the bottom end of the secondary gravity film bin annular plate is connected with the discharge bottom plate, the discharge bottom plate can provide support for the secondary gravity film bin annular plate, a secondary gravity film bin is formed between the inner wall of the secondary gravity film bin annular plate and the outer wall of the primary gravity film bin annular plate, slurry in the secondary gravity film bin can enter the secondary gravity film bin through the primary gravity spraying hole groove and can move downwards along the inner wall of the secondary gravity film bin annular plate from top to bottom, a plurality of secondary discharge hole grooves are formed in the secondary gravity film bin annular plate, the slurry moving downwards along the inner wall of the secondary gravity film bin annular plate can be sprayed out through the secondary discharge hole grooves, a second vacuum through groove is formed in the upper end of the secondary gravity film bin, and bubbles in the slurry in the secondary gravity film bin can be discharged through the second vacuum through groove under the action of negative pressure;
the bottom end of the injection annular plate is connected with the discharge bottom plate, the discharge bottom plate can support the injection annular plate, the injection annular plate comprises an injection bottom plate and a mesh screen wall surface, the lower end of the injection bottom plate is connected with the discharge bottom plate, an injection preparation bin is formed between the inner wall of the injection bottom plate and the outer wall of the second-stage gravity film bin annular plate, slurry in the second-stage gravity film bin can enter the injection preparation bin through a second-stage discharge hole groove and move upwards from bottom to top along the inner wall of the injection annular plate, the injection bottom plate and the mesh screen wall surface are connected into a whole from bottom to top, a plurality of discharge injection holes are formed in the mesh screen wall surface, and the slurry in the injection preparation bin can move upwards from bottom and can be injected out through the discharge injection holes in the mesh screen wall surface under the action of centrifugal force;
the radius of one end, far away from the material discharge bottom plate, of the primary gravity film bin annular plate is larger than that of one end, close to the material discharge bottom plate, of the primary gravity film bin annular plate, and the radius of one end, far away from the material discharge bottom plate, of the secondary gravity film bin annular plate is smaller than that of one end, close to the material discharge bottom plate, of the secondary gravity film bin annular plate;
the included angle between the bus of the secondary gravity film bin ring plate and the bottom of the secondary gravity film bin ring plate is recorded as a first included angle a, the included angle between the bus of the primary gravity film bin ring plate and the upper bottom of the primary gravity film bin ring plate is recorded as a third included angle c, the first included angle a is an obtuse angle, and the third included angle c is an acute angle.
2. The continuous gravity membrane centrifuge let-off tray of claim 1, wherein the raw material bin ring plate is circular in cross-section perpendicular to its axial direction.
3. The continuous gravity film centrifugal discharge disc of claim 1, wherein the lower ring groove of the bin is located on one side of the raw material bin ring plate close to the discharge bottom plate and is evenly distributed in the circumferential direction of the raw material bin ring plate, the primary gravity injection hole groove is located on one side of the primary gravity film bin ring plate far away from the discharge bottom plate and is evenly distributed in the circumferential direction of the primary gravity film bin ring plate, and the horizontal plane of the lower ring groove of the bin is located below the horizontal plane of the primary gravity injection hole groove.
4. The continuous gravity membrane centrifugal discharge tray of claim 3, wherein the primary gravity jet hole slots are one or more of circular holes and strip-shaped holes.
5. The continuous gravity film centrifugal discharge tray as claimed in any one of claims 1 to 4, wherein the section of the injection bottom plate perpendicular to the axial direction of the injection bottom plate is in a shape of a circular truncated cone, an included angle formed by a generatrix of the injection bottom plate and a plane of the discharge bottom plate is a second included angle b, and the second included angle b is an acute angle.
6. The continuous gravity membrane centrifuge discharge tray of claim 5 wherein the radius of the end of said jet floor distal from said discharge floor is greater than the radius of the end of said jet floor proximal to said discharge floor.
7. Use of a continuous gravity film centrifugal discharge tray according to any one of claims 1 to 6 for degassing slurry.
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