Oriented horizontal vibrating self-cleaning airflow screen and multiphase ceramic production system and method

Abstract

The application discloses a directional horizontal vibration self-cleaning airflow screen and a production system and method of a composite ceramic, and belongs to the technical field of ceramic production, and is used for solving at least one problem of instability of a vibration direction of an airflow screen, easy plugging of holes of a screen surface, insufficient self-cleaning capacity, low production efficiency of a composite ceramic, high production cost, and excessive consumption of non-renewable mineral resources in the prior art. In the airflow screen, a screen net assembly is sleeved on an outer wall of an air wheel assembly, an eccentric block is arranged at the bottom of the air wheel assembly, an air wheel shaft penetrates through the air wheel assembly and an upper bottom plate, the air wheel shaft is fixedly connected with the air wheel assembly and rotationally connected with the upper bottom plate, and the upper bottom plate is arranged on a bottom cylinder through a directional vibration limiting piece. The application can be used for preparation of a composite ceramic.

Description

Technical Field

[0001] This invention belongs to the field of ceramic production technology, and particularly relates to a directional horizontal vibration self-cleaning airflow screen and a multiphase ceramic production system and method. Background Technology

[0002] In the preparation of multiphase ceramics, it is usually necessary to use an air classifier to screen the raw material particles. The air classifier relies on the impeller to generate a high-speed rotating airflow, which causes the raw material particles to be thrown onto the screen of the air classifier under the action of centrifugal force and airflow and complete the screening.

[0003] However, during operation, raw material particles can easily clog the screen, leading to a decrease in screening and multiphase ceramic production efficiency. Although some existing vibrating air classifiers improve the screening state by adding elastic connections or eccentric excitation structures, the vibration direction of the screen body is often unstable, and phenomena such as vertical sway, random vibration, or excessive local impact are prone to occur, resulting in uneven stress on the screen surface and even affecting the working stability of the air classifier.

[0004] Furthermore, in existing technologies, raw material particles are usually non-renewable mineral resources such as kaolin, quartz and feldspar, which are compounded with sintering aids to achieve densification and good comprehensive performance of multiphase ceramics. This results in problems such as high production costs of multiphase ceramics and excessive consumption of non-renewable mineral resources. Summary of the Invention

[0005] Based on the above analysis, the embodiments of the present invention aim to provide a directional horizontal vibration self-cleaning airflow screen and a multiphase ceramic production system and method to solve at least one of the following problems in the prior art: unstable vibration direction of airflow screen, easy clogging of screen surface, insufficient self-cleaning ability, low production efficiency of multiphase ceramics, high production cost, and excessive consumption of non-renewable mineral resources.

[0006] The objective of this invention is mainly achieved through the following technical solutions.

[0007] This invention provides a directional horizontal vibration self-cleaning airflow screen, including a bottom cylinder, an upper bottom plate, a wind turbine assembly, a wind turbine shaft, and a screen assembly. The screen assembly is sleeved on the outer wall of the wind turbine assembly. An eccentric block is provided at the bottom of the wind turbine assembly. The wind turbine shaft passes through the wind turbine assembly and the upper bottom plate. The wind turbine shaft is fixedly connected to the wind turbine assembly and rotatably connected to the upper bottom plate. The upper bottom plate is placed on the bottom cylinder by a directional vibration limiting member.

[0008] Furthermore, there are multiple directional vibration limiting elements, which are evenly arranged along the circumference of the bottom cylinder.

[0009] Furthermore, the directional vibration limiting component includes a fixed column, an elastic sleeve, and a rigid sleeve that are sequentially nested together. There is a movable gap between the elastic sleeve and the fixed column. One end of the fixed column is fixedly connected to the upper base plate, and the other end of the fixed column passes through the top surface of the elastic sleeve and the bottom cylinder in sequence. The fixed column is movable relative to the bottom cylinder.

[0010] Furthermore, the directional vibration limiting component also includes a limiting nut, and the fixing column is threadedly connected to the limiting nut after penetrating the top surface of the bottom cylinder.

[0011] Furthermore, the directional vibration limiting component also includes an upper rolling assembly, which is disposed between the elastic sleeve and / or the rigid sleeve and the upper base plate.

[0012] Furthermore, the directional vibration limiting component also includes a lower rolling assembly, which is located between the limiting nut and the top surface of the bottom cylinder.

[0013] Furthermore, the elastic sleeve protrudes from the top surface of the rigid sleeve.

[0014] Furthermore, the protrusion height is 0.5~1.0mm.

[0015] The present invention also provides a multiphase ceramic production system, including a coal gangue raw material silo, a gold tailings raw material silo, a coal gangue sorting air classifier, a gold tailings sorting air classifier, an alumina raw material silo, and a planetary ball mill, a tablet press, and a pressureless high-temperature furnace connected in sequence. The discharge port of the coal gangue raw material silo is connected to the inlet of the coal gangue sorting air classifier, the discharge port of the gold tailings raw material silo is connected to the inlet of the gold tailings sorting air classifier, and the screening discharge ports of the coal gangue sorting air classifier, the gold tailings sorting air classifier, and the alumina raw material silo are all connected to the inlet of the planetary ball mill. The coal gangue separation air classifier and the gold tailings separation air classifier are the aforementioned directional horizontal vibration self-cleaning air classifiers.

[0016] The present invention also provides a method for producing multiphase ceramics, using the above-described multiphase ceramics production system.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: A) The directional horizontal vibration self-cleaning airflow screen provided by this invention, on the one hand, restricts the vertical movement range of the fixed column by setting a rigid sleeve, reducing vertical sway and irregular vertical vibration of the screen body; on the other hand, the elastic sleeve, in conjunction with the movable gap, only allows the fixed column to generate a certain amplitude of vibration displacement in the horizontal direction. Combined with the excitation force generated by the rotation of the eccentric block at the bottom of the impeller assembly, it can stably output directional horizontal vibration, so that the screen always maintains uniform horizontal vibration, effectively alleviating the blockage of the screen holes by raw material particles, realizing the self-cleaning of the screen surface, and avoiding the problems of excessive local impact or uneven force on the screen surface. This significantly improves the working stability and screening efficiency of the airflow screen, thereby improving the production efficiency of multiphase ceramics.

[0018] B) The multiphase ceramic production system provided by this invention, on the one hand, contains coal gangue in the coal gangue raw material silo and gold tailings in the gold tailings raw material silo, and can directly utilize the aluminum and silicon components in the coal gangue and gold tailings to replace traditional non-renewable mineral raw materials such as kaolin and quartz. After the batching is completed, multiphase ceramics with mullite as the main crystalline phase can be sintered, which greatly reduces the production cost of multiphase ceramics, and at the same time realizes the resource utilization of solid waste and reduces the consumption of non-renewable mineral resources.

[0019] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0020] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0021] Figure 1 A schematic diagram of the structure of the directional horizontal vibration self-cleaning airflow screen provided by the present invention; Figure 2 A schematic diagram showing the connection of the bottom plate, upper bottom plate, and directional vibration limiting component in the directional horizontal vibration self-cleaning airflow screen provided by the present invention; Figure 3 A schematic diagram of the directional vibration limiting element in the directional horizontal vibration self-cleaning airflow screen provided by the present invention; Figure 4 A schematic diagram of the upper and lower rolling components in the directional horizontal vibration self-cleaning airflow screen provided by the present invention; Figure 5 A schematic diagram of the impeller assembly and eccentric block in the directional horizontal vibration self-cleaning airflow screen provided by the present invention; Figure 6 A schematic diagram of the screen assembly in the directional horizontal vibration self-cleaning airflow screen provided by the present invention; Figure 7 This is a structural block diagram of the multiphase ceramic production system provided by the present invention; Figure 8 This is a SEM image of Example 1; Figure 9 This is the SEM image of Example 2.

[0022] Figure label: 1-Bottom cylinder; 2-Upper base plate; 3-Wind impeller assembly; 4-Wind impeller shaft; 5-Screen assembly; 501-Flexible suspension component; 502-Vibrating ball; 6-Eccentric block; 7-Fixing column; 8-Elastic sleeve; 9-Rigid sleeve; 10-Limit nut; 11-Connecting gasket; 12-Ball bearing; 13-Connecting ring; 14-Accommodating ring groove. Detailed Implementation

[0023] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0024] In a first aspect, the present invention provides a directional horizontal vibration self-cleaning airflow screen, see [link to previous article]. Figures 1 to 2 It includes a bottom cylinder 1, an upper bottom plate 2, a wind turbine assembly 3, a wind turbine shaft 4, and a screen assembly 5. The screen assembly 5 is fitted onto the outer wall of the wind turbine assembly 3. An eccentric block 6 is provided at the bottom of the wind turbine assembly 3. See [link / reference]. Figure 5 The wind turbine shaft 4 passes through the wind turbine assembly 3 and the upper base plate 2. The wind turbine shaft 4 is fixedly connected to the wind turbine assembly 3 and rotatably connected to the upper base plate 2. The upper base plate 2 is placed on the bottom cylinder 1 through a directional vibration limiting member.

[0025] The directional vibration limiting component includes a fixed post 7, an elastic sleeve 8, and a rigid sleeve 9, which are sequentially fitted together. See [link / reference needed]. Figure 3 There is a movable gap between the elastic sleeve 8 and the fixed column 7. One end of the fixed column 7 is fixedly connected to the upper base plate 2, and the other end of the fixed column 7 passes through the top surface of the elastic sleeve 8 and the bottom cylinder 1 in sequence. The fixed column 7 is movable relative to the bottom cylinder 1.

[0026] Compared with the prior art, the directional horizontal vibration self-cleaning airflow screen provided by the present invention, on the one hand, can limit the vertical range of motion of the fixed column 7 by setting the rigid sleeve 9, reducing the vertical sway and irregular vertical vibration of the screen body; on the other hand, the elastic sleeve 8, in conjunction with the movable gap, only allows the fixed column 7 to generate a certain amplitude of vibration displacement in the horizontal direction. Combined with the excitation force generated by the rotation of the eccentric block 6 at the bottom of the impeller assembly 3, it can stably output directional horizontal vibration, so that the screen always maintains uniform horizontal vibration, effectively alleviates the blockage of the screen holes by raw material particles, realizes the self-cleaning of the screen surface, and avoids the problems of excessive local impact or uneven force on the screen surface. It significantly improves the working stability and screening efficiency of the airflow screen, thereby improving the production efficiency of multiphase ceramics.

[0027] Furthermore, to address the issue of insufficient support stability of the upper base plate 2, multiple directional vibration limiting components are used, for example, three or more, evenly distributed along the circumference of the bottom cylinder 1. This ensures both the horizontal vibration freedom of the upper base plate 2 and effectively limits its vertical vibration offset, thereby improving the support stability of the upper base plate 2.

[0028] Furthermore, in order to solve the problem of unstable connection between the fixed rod and the bottom cylinder 1, the above-mentioned directional vibration limiting component also includes a limiting nut 10, and the fixed column 7 passes through the top surface of the bottom cylinder 1 and is threadedly connected to the limiting nut 10.

[0029] Furthermore, it is worth noting that if the limiting nut 10 and the top surface of the bottom cylinder 1, as well as the elastic sleeve 8 and / or rigid sleeve 9 and the upper base plate 2, are in direct contact, the excessive friction between these components may affect the horizontal vibration of the fixed column 7. Therefore, the aforementioned directional vibration limiting component also includes an upper rolling assembly and a lower rolling assembly. The upper rolling assembly is located between the elastic sleeve 8 and / or rigid sleeve 9 and the upper base plate 2, and the lower rolling assembly is located between the limiting nut 10 and the top surface of the bottom cylinder 1. In this way, the frictional resistance of the contact surfaces of the components to the horizontal vibration of the fixed column 7 can be reduced, ensuring that the fixed column 7 drives the upper base plate 2 to smoothly complete the directional horizontal vibration, further improving the stability of the vibration and ensuring the self-cleaning effect.

[0030] Furthermore, the structures of the upper scroll component and the lower scroll component are basically the same; see [link to relevant documentation]. Figures 3 to 4Each component includes a connecting washer 11, balls 12 (e.g., steel balls), and a connecting ring 13. A gap exists between the connecting washer 11 and the connecting ring 13. The balls 12 are positioned between the connecting washer 11 and the connecting ring 13. A receiving annular groove 14 is formed on the side of the connecting ring 13 facing the connecting washer 11, and at least one receiving groove is formed in the receiving annular groove 14. The balls 12 are positioned within the receiving groove. Thus, by configuring the balls 12 and the connecting ring 13, the frictional sliding between the limiting nut 10 and the top surface of the bottom cylinder 1, and between the elastic sleeve 8 and / or the rigid sleeve 9 and the upper base plate 2, can be transformed into rolling of the balls 12 relative to the connection. This achieves smooth horizontal vibration of the fixed column 7 within the movable gap, alleviating the problem of excessive friction between the limiting nut 10 and the top surface of the bottom cylinder 1, and between the elastic sleeve 8 and / or the rigid sleeve 9 and the upper base plate 2, affecting the vibration of the fixed column 7.

[0031] Furthermore, in order to mitigate the damage caused by rigid contact, the elastic sleeve 8 protrudes from the top surface of the rigid sleeve 9, for example, with a protrusion height of 0.5~1.0mm. In this way, through appropriate elastic contact, vertical impact can be buffered while ensuring vertical limiting, reducing wear caused by direct hard contact between rigid components, and extending the service life of the directional vibration limiting component.

[0032] To further address the issue of insufficient self-cleaning capability of the airflow screen, the structure of screen assembly 5 is specifically described in [reference needed]. Figure 6 It includes a screen surface, a flexible suspension element 501 (e.g., nylon thread), and vibrating balls 502. The vibrating balls 502 are suspended from the outer wall of the screen surface by the flexible suspension element 501 and are in contact with the screen surface. In this way, during the vibration of the impeller assembly 3, the vibrating balls 502 can continuously strike the screen surface with the directional horizontal vibration of the screen surface, further shaking off the raw material particles stuck in the screen holes. At the same time, the flexible suspension element 501 does not restrict the movement range of the vibrating balls 502, ensuring the knocking and unclogging effect and further improving the self-cleaning ability of the screen surface.

[0033] Secondly, this invention provides a multiphase ceramic production system, see [link to relevant documentation]. Figure 7 The system includes a coal gangue raw material silo, a gold tailings raw material silo, a coal gangue sorting air classifier, a gold tailings sorting air classifier, an alumina raw material silo, and a planetary ball mill, a tablet press, and a pressureless high-temperature furnace connected in sequence. The discharge port of the coal gangue raw material silo is connected to the inlet of the coal gangue sorting air classifier, and the discharge port of the gold tailings raw material silo is connected to the inlet of the gold tailings sorting air classifier. The screening discharge ports of the coal gangue sorting air classifier, the gold tailings sorting air classifier, and the alumina raw material silo are all connected to the inlet of the planetary ball mill. The coal gangue sorting air classifier and the gold tailings sorting air classifier are directional horizontal vibration self-cleaning air classifiers provided in the first aspect of this invention.

[0034] Compared with the prior art, the beneficial effects of the multiphase ceramic production system provided by the present invention are basically the same as those of the directional horizontal vibration self-cleaning airflow screen provided in the first aspect, and will not be elaborated here.

[0035] Furthermore, the multiphase ceramic production system with the above-mentioned structure can, on the one hand, use coal gangue raw material silos to hold coal gangue and gold tailings raw material silos to hold gold tailings, and can directly utilize the aluminum and silicon components in coal gangue and gold tailings to replace traditional non-renewable mineral raw materials such as kaolin and quartz. After the batching is completed, multiphase ceramics with mullite as the main crystalline phase can be sintered, which can significantly reduce the production cost of multiphase ceramics, while realizing the resource utilization of solid waste and reducing the consumption of non-renewable mineral resources.

[0036] Thirdly, the present invention provides a method for producing multiphase ceramics, which employs the multiphase ceramics production system provided in the second aspect.

[0037] Compared with the prior art, the beneficial effects of the multiphase ceramic production method provided by the present invention are basically the same as those of the multiphase ceramic production system provided in the second aspect, and will not be elaborated here.

[0038] Specifically, the above-mentioned method for producing multiphase ceramics includes the following steps: Step 1: Load the crushed and ground coal gangue into the coal gangue raw material silo, load the crushed and ground gold tailings into the gold tailings raw material silo, and load the alumina powder into the alumina raw material silo. Step 2: Turn on the coal gangue sorting air classifier and the gold tailings sorting air classifier, and feed the coal gangue in the coal gangue raw material bin into the coal gangue sorting air classifier for coal gangue screening to obtain coal gangue powder with a particle size of less than 74µm. Turn on the gold tailings sorting air classifier and the gold tailings sorting air classifier, and feed the gold tailings in the gold tailings raw material bin into the coal gangue sorting air classifier for gold tailings screening to obtain gold tailings powder with a particle size of less than 74µm. Step 3: Feed coal gangue powder, gold tailings powder and alumina powder into a planetary ball mill for mixing, wherein the mass ratio of coal gangue powder, gold tailings powder and alumina powder is 35-40:40-45:20. Step 4: Feed the mixed raw materials into the tablet press to obtain the shaped blank; Step 5: Place the molded blank into a box-type high-temperature furnace, heat to 100℃ at 2.0℃ / min and hold for 30 minutes for preheating and dehydration; heat to 600℃ at 2.0℃ / min and hold for 30 minutes, then heat to 900℃ at 3.0℃ / min and hold for 30 minutes for medium-temperature conversion. Medium-temperature conversion mainly involves the oxidation of organic matter and removal of crystal water, removal of residual carbon and bound water of clay minerals from coal gangue, and debinding to remove polyvinyl alcohol added during mixing; heat to 3.0℃ / min... The temperature was raised to 1440℃ and held for 4 hours for high-temperature sintering. High-temperature sintering mainly involves the accelerated reaction of active SiO2 (from coal gangue and tailings) and Al2O3 (from coal gangue, added alumina and metakaolinite conversion) in a liquid phase environment to generate mullite crystals. The large amount of silicate liquid phase formed (from tailings and reaction intermediates) has a reduced viscosity at high temperature. Under the action of capillary force, it fills the interparticle gaps, removes pores, and drives the green body to shrink and become dense. After cooling to 500℃ at 10℃ / min, it is furnace cooled to room temperature to obtain multiphase ceramic.

[0039] Using the above production method, on the one hand, coal gangue can provide the necessary silicon and aluminum oxides for the formation of the ceramic matrix, while also improving the plasticity of the green body; on the other hand, the K2O, Na2O, and other components abundant in gold tailings can generate a uniformly distributed low-temperature eutectic liquid phase in situ during subsequent segmented sintering, playing a key role as an endogenous self-supplying sintering aid. This induces the preferential growth of mullite crystals along a one-dimensional direction, thereby forming a large number of interlocking needle-like or whisker-like mullite within the ceramic matrix, uniformly distributed in the glass phase matrix. This three-dimensional network structure can significantly improve the toughness and flexural strength of the material, achieving a "whisker self-toughening" effect. In addition, the glass phase composed of various impurity oxides has a higher content and wider distribution, which can promote the material transport and sintering densification process within the green body, enabling the formed green body to achieve high density at a relatively low sintering temperature.

[0040] Example 1 Step a: Crush and grind the coal gangue and gold tailings. Load the crushed and ground coal gangue into the coal gangue raw material silo, the crushed and ground gold tailings into the gold tailings raw material silo, and the alumina powder into the alumina raw material silo. Turn on the coal gangue sorting air classifier and the gold tailings sorting air classifier to feed the coal gangue from the coal gangue raw material silo into the coal gangue sorting air classifier for screening, obtaining coal gangue powder with a particle size of less than 74µm. Turn on the gold tailings sorting air classifier and the gold tailings sorting air classifier to feed the gold tailings from the gold tailings raw material silo into the coal gangue sorting air classifier for screening, obtaining gold tailings powder with a particle size of less than 74µm. Step b: Feed the coal gangue powder, gold tailings powder and alumina powder into the planetary ball mill for mixing according to the ratio of 40wt% coal gangue powder, 40wt% gold tailings powder and 20wt% alumina powder. Step c: Place the raw materials into the ball mill jar of the planetary ball mill, spray a 5% polyvinyl alcohol aqueous solution of the mixed powder evenly, and add 3% AlF3 of the mixed powder. Under the conditions of ball-to-material ratio of 4:1 and rotation speed of 200 r / min, ball mill and mix for 1.5 h, and reverse the direction every half hour to obtain a uniformly mixed powder. Step d: Load the mixed powder into a mold, press it into shape using a planetary ball mill under a uniaxial pressure of 15 MPa to 20 MPa for 10 seconds, and demold to obtain the molded blank; Step e: Place the formed blank in a corundum crucible and perform heat treatment in a box-type high-temperature furnace. The heat treatment is segmented sintering, and the specific conditions are as follows: heat up to 100℃ at 2℃ / min and hold for 30min, heat up to 600℃ at 2℃ / min and hold for 30min, heat up to 900℃ at 3℃ / min and hold for 30min, heat up to 1440℃ at 3℃ / min and hold for 3h, and then cool down to 500℃ at a cooling rate of 10℃ / min and cool to room temperature with the furnace to obtain multiphase ceramic.

[0041] The shrinkage rate of the multiphase ceramic was 10.40%. The flexural strength was tested according to GB / T 6569-2006 standard and was 105.87 MPa. The bulk density, porosity, and water absorption were tested using the Archimedes boiling method and were 1.71 g / cm³. 3 2.72%, 1.59%.

[0042] Example 2 Step a: Crush and grind the coal gangue and gold tailings, then pass the coal gangue, gold tailings and alumina through a 200-mesh sieve to obtain raw materials with a particle size of less than 74µm. Step b: Weigh the raw materials according to the ratio of 35wt% coal gangue powder, 45wt% gold tailings powder, and 20wt% alumina powder; Step c: Place the raw materials into the ball mill jar of the planetary ball mill, spray a 5% polyvinyl alcohol aqueous solution of the mixed powder evenly, and add 3% AlF3 of the mixed powder. Under the conditions of ball-to-material ratio of 4:1 and rotation speed of 200 r / min, ball mill and mix for 1.5 h, and reverse the direction every half hour to obtain a uniformly mixed material. Step d: The mixed powder is loaded into a mold, and then pressed into shape by a planetary ball mill under a uniaxial pressure of 15 MPa to 20 MPa for 15 seconds. The molded blank is then demolded to obtain the molded blank. Step e: Place the formed blank in a corundum crucible and perform heat treatment in a box furnace. The heat treatment is segmented sintering, and the specific conditions are as follows: The temperature was increased to 100℃ at 2℃ / min and held for 30 min, then increased to 600℃ at 2℃ / min and held for 30 min, then increased to 900℃ at 3℃ / min and held for 30 min, then increased to 1440℃ at 3℃ / min and held for 3 h, and finally cooled to 500℃ at a cooling rate of 10℃ / min and cooled to room temperature in the furnace to obtain a multiphase ceramic.

[0043] The shrinkage rate of the multiphase ceramic was 9.78%. The flexural strength was tested according to GB / T 6569-2006 standard and was 101.76 MPa. The bulk density, porosity, and water absorption were tested using the Archimedes boiling method and were all 1.75 g / cm³. 3 1.43%, 0.82%.

[0044] Figure 8 and Figure 9 The scanning electron microscope (SEM) characterization results for Examples 1 and 2 are shown below. The characterization results indicate that the ceramic matrix exhibits good density and tight grain bonding, with no obvious open pores observed. The glassy phase is uniformly distributed on the sample surface. This dense surface structure is consistent with the sample's low water absorption rate, suggesting that the alkali metal oxides introduced by the gold tailings effectively promote the liquid-phase sintering process, achieving good densification of the ceramic material. The fracture surface morphology clearly shows that needle-like mullite whiskers interweave and are distributed within the glassy phase matrix, constructing a highly cross-linked three-dimensional network structure. This structure effectively meets the performance design requirements of mullite ceramic composites for high strength and low density.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A directional horizontal vibration self-cleaning airflow screen, characterized in that, It includes a bottom cylinder, an upper bottom plate, a wind turbine assembly, a wind turbine shaft, and a screen assembly. The screen assembly is sleeved on the outer wall of the wind turbine assembly. An eccentric block is provided at the bottom of the wind turbine assembly. The wind turbine shaft passes through the wind turbine assembly and the upper bottom plate. The wind turbine shaft is fixedly connected to the wind turbine assembly and rotatably connected to the upper bottom plate. The upper bottom plate is placed on the bottom cylinder through a directional vibration limiting member.

2. The directional horizontal vibration self-cleaning airflow screen according to claim 1, characterized in that, The number of directional vibration limiting elements is multiple, and the multiple directional vibration limiting elements are evenly arranged along the circumference of the bottom cylinder.

3. The directional horizontal vibration self-cleaning airflow screen according to claim 1, characterized in that, The directional vibration limiting component includes a fixed column, an elastic sleeve, and a rigid sleeve that are sequentially nested together. There is a movable gap between the elastic sleeve and the fixed column. One end of the fixed column is fixedly connected to the upper base plate, and the other end of the fixed column passes through the top surface of the elastic sleeve and the bottom cylinder in sequence. The fixed column is movable relative to the bottom cylinder.

4. The directional horizontal vibration self-cleaning airflow screen according to claim 3, characterized in that, The directional vibration limiting component also includes a limiting nut, and the fixing column is threadedly connected to the limiting nut after penetrating the top surface of the bottom cylinder.

5. The directional horizontal vibration self-cleaning airflow screen according to claim 3, characterized in that, The directional vibration limiting component also includes an upper rolling assembly, which is disposed between the elastic sleeve and / or the rigid sleeve and the upper base plate.

6. The directional horizontal vibration self-cleaning airflow screen according to claim 3, characterized in that, The directional vibration limiting component also includes a lower rolling assembly, which is disposed between the limiting nut and the top surface of the bottom cylinder.

7. The directional horizontal vibration self-cleaning airflow screen according to claim 3, characterized in that, The elastic sleeve protrudes from the top surface of the rigid sleeve.

8. The directional horizontal vibration self-cleaning airflow screen according to claim 7, characterized in that, The protrusion height is 0.5~1.0mm.

9. A multiphase ceramic production system, characterized in that, The system includes a coal gangue raw material silo, a gold tailings raw material silo, a coal gangue sorting air classifier, a gold tailings sorting air classifier, an alumina raw material silo, and a planetary ball mill, a tablet press, and a pressureless high-temperature furnace connected in sequence. The discharge port of the coal gangue raw material silo is connected to the inlet of the coal gangue sorting air classifier, the discharge port of the gold tailings raw material silo is connected to the inlet of the gold tailings sorting air classifier, and the screening discharge ports of the coal gangue sorting air classifier, the gold tailings sorting air classifier, and the alumina raw material silo are all connected to the inlet of the planetary ball mill. The coal gangue sorting air classifier and the gold tailings sorting air classifier are directional horizontal vibration self-cleaning air classifiers as described in any one of claims 1 to 8.

10. A method for producing multiphase ceramics, characterized in that, The multiphase ceramic production system as described in claim 9 is adopted.

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