Grading device for aluminum hydroxide slurry
By combining defoaming tube assembly and electric heating copper tube for defoaming with high-speed rotation of the hydrocyclone, the problem of air bubbles affecting the classification process of aluminum hydroxide slurry was solved, achieving more uniform particle separation and improving classification efficiency.
Patent Information
- Application Number
- CN202520011044.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-01-03
AI Technical Summary
In the existing technology, during the centrifugal classification process of aluminum hydroxide slurry, the inability of air bubbles to dissipate quickly leads to uneven particle separation and reduces the classification effect.
The defoaming tube assembly and electric heating copper tubes are used to heat and defoam the slurry. Combined with the electric turntable driving the hydrocyclone to rotate at high speed, the particle classification is achieved by using the centrifugal sedimentation principle. The defoaming tube assembly includes electric heating copper tubes and bent tube design to ensure that the slurry flows on the inner wall of the hydrocyclone and reduce the entrainment of particles by bubbles.
It effectively improves the classification effect of aluminum hydroxide slurry, ensures uniform particle separation, and enhances classification efficiency.
Smart Images
Figure CN223811134U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of aluminium hydroxide slurries's grading device, belong to aluminium hydroxide slurry processing equipment field. BACKGROUND
[0002] The particle size cyclone classification of aluminium hydroxide slurry is a commonly used process, which is used to separate aluminium hydroxide particles of different sizes to meet the requirements of subsequent processing or application. This process is usually achieved by a cyclone, which uses centrifugal force to efficiently sort solid particles.
[0003] In the prior art, there is a stirring process during the preparation of aluminium hydroxide slurry, which causes a large number of bubbles inside the prepared slurry. When the slurry is directly transported to the cyclone for centrifugal classification processing, the bubbles in the slurry will wrap the particles of different sizes inside the slurry, which cannot be quickly broken by centrifugal force, resulting in uneven separation of aluminium hydroxide slurry particles and reducing the classification effect of aluminium hydroxide slurry.
[0004] Therefore, the utility model provides a kind of aluminium hydroxide slurries's grading device to solve the above problems. SUMMARY
[0005] To overcome the shortcomings of the prior art, the utility model aims to provide a kind of aluminium hydroxide slurries's grading device to solve the problem of slow dispersion of bubbles inside the slurry and easy wrapping of particles of different sizes, which reduces the classification effect.
[0006] To achieve the above purpose, the utility model is implemented by the following technical solution: a kind of aluminium hydroxide slurries's grading device, including base, cyclone and electric turntable, the top of the base is fixedly installed with support plate on both sides, the top of two support plates is jointly installed with fixed plate, the electric turntable penetrates between the top and bottom of fixed plate, the cyclone penetrates between the top and bottom of electric turntable, the top of the cyclone is fixedly installed with round plate, the outside of the round plate is equipped with heat preservation shell, the inside of the heat preservation shell is fixedly equipped with defoaming pipe group, the bottom of the cyclone is communicated with underflow pipe, the top center of the round plate penetrates with overflow pipe.
[0007] Further, the heat preservation shell and the cyclone are mutually sleeved, the heat preservation shell is in the shape of a ring-shaped cylinder, the electric turntable is fixedly connected with the fixed plate through bearings, and the electric turntable is fixedly connected with the cyclone.
[0008] Further, the top of the cyclone is in the shape of a column, the bottom of the cyclone is in the shape of a cone, and the diameter of the round plate is greater than the diameter of the top of the cyclone.
[0009] Further, the bottom end of the overflow pipe penetrates the cyclone and extends to the inside of the cyclone, and the overflow pipe is in communication with the cyclone.
[0010] Further, the defoaming pipe group comprises an electric heating copper pipe, the electric heating copper pipe is sleeved in the inside of the heat preservation shell, the electric heating copper pipe is in a spiral shape, one side of the top of the electric heating copper pipe is in communication with a liquid inlet pipe, the top end of the liquid inlet pipe penetrates the heat preservation shell and extends to the outside of the heat preservation shell, the bottom of the electric heating copper pipe is uniformly in communication with a plurality of bent pipes around the spiral center, the bottom end of each bent pipe penetrates the heat preservation shell and extends to the lower side of the heat preservation shell, the bottom end of each bent pipe is in communication with a liquid outlet pipe, and one end of each liquid outlet pipe penetrates the cyclone and extends to the inside of the cyclone.
[0011] Further, the bottom end of each bent pipe is in a right-angle bent shape, and the bent end faces the cyclone.
[0012] Further, one end of each liquid outlet pipe inside the cyclone is in a bent shape, and the port faces the inner wall of the cyclone.
[0013] The utility model discloses a beneficial effect:
[0014] The liquid inlet pipe is used for conveying the aluminum hydroxide slurry to the inside of the electric heating copper pipe, and the electric heating copper pipe is started to heat and defoam the slurry, and the slurry after heating and defoaming is uniformly conveyed to the inside of the plurality of liquid outlet pipes through the plurality of bent pipes, one end of each liquid outlet pipe inside the cyclone is in a bent shape, and the port faces the inner wall of the cyclone, so that the slurry flows along the inner wall of the cyclone when conveying to the inside of the cyclone, a large number of bubbles are not generated, the bubbles are not wrapped with the internal particles of the slurry, the phenomenon that the slurry particles are unevenly separated is reduced, and the grading effect of the aluminum hydroxide slurry is effectively improved.
[0015] The electric rotating table is started at the same time to drive the cyclone to rotate at high speed, the cyclone is a separation equipment based on the centrifugal sedimentation principle, and the basic structure is that a cylindrical cavity is connected with a conical bottom, when the aluminum hydroxide slurry containing solid particles enters the cyclone through the plurality of liquid outlet pipes at high speed, strong rotating motion is generated in the inside, the electric rotating table drives the cyclone to rotate at high speed, and the formation of the spiral fluid in the inside of the cyclone is accelerated, so that the grading efficiency of the aluminum hydroxide slurry is effectively improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Other characteristics, objects and advantages of the utility model will become more apparent through reading the following detailed description of non-restrictive embodiments with reference to the accompanying drawings:
[0017] Figure 1 It is a perspective view of the utility model of an aluminum hydroxide slurry grading device;
[0018] Figure 2A hydrogen oxide aluminium slurry's grading device's main view of the utility model;
[0019] Figure 3 A hydrogen oxide aluminium slurry's grading device's main view of the utility model;
[0020] Figure 4 For Figure 2 The upside view of cyclone shown in the figure.
[0021] Figure 5 For Figure 3 The main view of electric heating copper pipe shown in the figure.
[0022] In the figure: 1, base; 2, cyclone; 3, electric rotary table; 4, support plate; 5, fixed plate; 6, round plate; 7, heat preservation shell; 8, defoaming pipe group; 9, overflow pipe; 10, underflow pipe; 81, electric heating copper pipe; 82, liquid inlet pipe; 83, elbow pipe; 84, liquid delivery pipe. DETAILED DESCRIPTION
[0023] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.
[0024] Please refer to Figures 1-5The utility model provides a technical scheme: a kind of aluminium hydroxide slurry's grading device, including base 1, cyclone 2 and motor turntable 3, both sides of the top of base 1 are fixedly installed with support plate 4, the top of two support plates 4 is jointly installed with fixed plate 5, motor turntable 3 is penetrated between the top and bottom of fixed plate 5, cyclone 2 is penetrated between the top and bottom of motor turntable 3, the top of cyclone 2 is fixedly installed with round plate 6, the outside of round plate 6 is equipped with heat preservation shell 7, heat preservation shell 7 is fixedly equipped with defoaming pipe group 8 in its inside, the bottom of cyclone 2 is communicated with underflow pipe 10, the top center of round plate 6 is penetrated with overflow pipe 9, cyclone 2 is a kind of separation equipment based on centrifugal sedimentation principle, and its basic structure is a cylindrical cavity connected with a conical bottom, when containing solid particle, aluminium hydroxide slurry enters cyclone 2 at high speed tangentially, produce intense rotary motion in inside, form spiral flow, since larger particles are subjected to stronger centrifugal force, will be quickly moved to outer wall and sink along wall to underflow outlet;And smaller particles continue to flow upwards with inner layer liquid, discharge from overflow port, to realize the purpose of solid phase according to granularity classification, heat preservation shell 7 and cyclone 2 are mutually equipped, heat preservation shell 7 is annular cylinder shell, motor turntable 3 is fixedly connected with fixed plate 5 by bearing, motor turntable 3 is fixedly connected with cyclone 2, motor turntable 3 is a kind of mechanical equipment that can realize automatic rotation and positioning, motor turntable 3 rotates by motor-driven rotary disc, real-time monitoring rotation angle by encoder or sensor, and information is fed back to controller, and controller adjusts motor output according to preset program, to realize accurate angle positioning and continuous rotation, motor turntable 3 is connected with external power supply and is provided with power control switch, by starting motor turntable 3, cyclone 2 can be driven to rotate at high speed, so that aluminium hydroxide slurry in the inside of cyclone 2 forms centrifugal classification effect, the top of cyclone 2 is columnar, the bottom of cyclone 2 is conical, the diameter of round plate 6 is greater than the diameter of the top of cyclone 2, the bottom end of overflow pipe 9 is penetrated cyclone 2 and extends to the inside of cyclone 2, overflow pipe 9 is communicated with cyclone 2.
[0025] Please refer to Figures 2-5, defoaming pipe group 8, including electric heating copper pipe 81, electric heating copper pipe 81 is sleeved in the inside of heat preservation shell 7, electric heating copper pipe 81 is helical, so that the conveying path of aluminium hydroxide slurry can be increased in limited space, so that the heating time of slurry can be prolonged, the bubbles in the inside of slurry are heated sufficiently, defoaming, one side of the top of electric heating copper pipe 81 is communicated with liquid inlet pipe 82, the top end of liquid inlet pipe 82 penetrates heat preservation shell 7 and extends to the outside of heat preservation shell 7, the bottom of electric heating copper pipe 81 is uniformly communicated with multiple bent pipes 83 around the spiral center, the bottom end of each bent pipe 83 penetrates heat preservation shell 7 and extends to the below of heat preservation shell 7, the bottom end of each bent pipe 83 is communicated with liquid outlet pipe 84, one end of each liquid outlet pipe 84 penetrates cyclone 2 and extends to the inside of cyclone 2, the core of electric heating copper pipe 81 is resistance wire (usually nickel-chromium alloy), the resistance wire is encapsulated in the inside of copper pipe, and is filled with insulating material (such as magnesium oxide powder) between copper pipe, when electric current passes through resistance wire, resistance wire generates heat, these heat is transferred to external medium (such as air, liquid or solid) through copper pipe with good heat conduction performance, the bottom end of each bent pipe 83 is right-angle bent, and the bent end faces cyclone 2, one end of each liquid outlet pipe 84 inside cyclone 2 is bent, and the port faces the inner wall of cyclone 2.
[0026] Specific implementation: aluminium hydroxide slurry is conveyed to the inside of electric heating copper pipe 81 through liquid inlet pipe 82, and electric heating copper pipe 81 is started to heat and defoam the slurry, the slurry after heating and defoaming is uniformly conveyed to the inside of multiple liquid outlet pipes 84 through multiple bent pipes 83, since one end of each liquid outlet pipe 84 inside cyclone 2 is bent, and the port faces the inner wall of cyclone 2, when the slurry is conveyed to the inside of cyclone 2, the slurry will flow along the inner wall of cyclone 2, and a large number of bubbles will not be generated, the bubbles wrapping the internal particles of slurry are reduced, the phenomenon that the slurry particles are not uniformly separated is avoided, and the classification effect of aluminium hydroxide slurry is effectively improved.
[0027] At the same time, electric rotating table 3 is started to drive cyclone 2 to rotate at high speed, cyclone 2 is a separation equipment based on centrifugal sedimentation principle, and the basic structure is a cylindrical cavity connected with a conical bottom, when aluminium hydroxide slurry containing solid particles enters cyclone 2 through multiple liquid outlet pipes 84 at high speed, strong rotating motion is generated in the inside, at the same time, electric rotating table 3 drives cyclone 2 to rotate at high speed, and the formation of spiral fluid in the inside of cyclone 2 is accelerated, since the larger particles are subjected to stronger centrifugal force, the larger particles will quickly move to the outer wall and sink along the wall, and the valve on underflow pipe 10 is opened to discharge the large particle slurry, and the smaller particles continue to flow upward with the inner layer liquid, and are discharged from overflow pipe 9, so that the purpose of classifying solid phase according to particle size is achieved.
[0028] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.
Claims
1. A grading device for aluminum hydroxide slurry, comprising a base (1), a hydrocyclone (2), and an electric turntable (3), characterized in that: Support plates (4) are fixedly installed on both sides of the top of the base (1). A fixed plate (5) is installed on the top of the two support plates (4). The electric turntable (3) passes through the top and bottom of the fixed plate (5). The hydrocyclone (2) passes through the top and bottom of the electric turntable (3). A circular plate (6) is fixedly installed on the top of the hydrocyclone (2). An insulation shell (7) is fitted on the outside of the circular plate (6). An antifoaming tube group (8) is fixedly fitted inside the insulation shell (7). The bottom of the hydrocyclone (2) is connected to the underflow pipe (10). An overflow pipe (9) passes through the center of the top of the circular plate (6).
2. The classifying device for aluminum hydroxide slurry according to claim 1, characterized in that: The heat insulation shell (7) and the hydrocyclone (2) are nested together. The heat insulation shell (7) is in the shape of an annular cylindrical shell. The electric turntable (3) is fixedly connected to the fixed plate (5) through the bearing. The electric turntable (3) is fixedly connected to the hydrocyclone (2).
3. The classifying device for aluminum hydroxide slurry according to claim 1, characterized in that: The top of the hydrocyclone (2) is columnar, the bottom of the hydrocyclone (2) is conical, and the diameter of the circular plate (6) is larger than the diameter of the top of the hydrocyclone (2).
4. The classifying device for aluminum hydroxide slurry according to claim 1, characterized in that: The bottom end of the overflow pipe (9) passes through the hydrocyclone (2) and extends into the interior of the hydrocyclone (2), and the overflow pipe (9) is connected to the hydrocyclone (2).
5. The classifying device for aluminum hydroxide slurry according to claim 1, characterized in that: The defoaming tube assembly (8) includes an electric heating copper tube (81), which is fitted inside the insulation shell (7). The electric heating copper tube (81) is spiral-shaped. One side of the top of the electric heating copper tube (81) is connected to an inlet pipe (82). The top of the inlet pipe (82) penetrates the insulation shell (7) and extends to the outside of the insulation shell (7). The bottom of the electric heating copper tube (81) is evenly connected to multiple bent tubes (83) around the spiral center. The bottom end of each bent tube (83) penetrates the insulation shell (7) and extends to the bottom of the insulation shell (7). The bottom end of each bent tube (83) is connected to an infusion tube (84). One end of each infusion tube (84) penetrates the hydrocyclone (2) and extends to the inside of the hydrocyclone (2).
6. The classifying device for aluminum hydroxide slurry according to claim 5, characterized in that: The bottom of each bend (83) is bent at a right angle, and the bend faces the hydrocyclone (2).
7. The classifying device for aluminum hydroxide slurry according to claim 5, characterized in that: Each infusion tube (84) has a bent end inside the hydrocyclone (2) with its port facing the inner wall of the hydrocyclone (2).