A particle dispersing device for ceramic powder

Abstract

This utility model discloses a particle dispersion device for ceramic powder, including a circulating dispersion mechanism. The circulating dispersion mechanism includes a first screening component, a powder lifting component, and a recovery pipe. The first screening component includes a screening box, a first screen, and an elastic support member. The interior of the screening box is divided into an upper chamber and a lower chamber by the first screen. The upper discharge port of the screening box is connected to the upper chamber, and the lower discharge port is connected to the lower chamber. The powder lifting component includes a lifting pipe and a screw rod. The rotation of the screw rod is used to convey the ceramic powder located at the bottom of the lifting pipe upward. A lifting inlet is opened at the lower part of the side wall of the lifting pipe, and the lifting inlet is connected to the upper discharge port. A lifting outlet is opened at the upper part of the side wall of the lifting pipe, and a recovery pipe is connected to the outside of the lifting outlet. The discharge end of the recovery pipe is connected to the inlet. This solution can effectively disperse the ceramic powder, avoid the agglomeration and clumping of the ceramic powder, thereby improving the screening rate of the ceramic powder in the grating.

Description

Technical Field

[0001] This utility model relates to the technical field of building ceramics production equipment, and in particular to a particle dispersion device for ceramic powder. Background Technology

[0002] The preparation of ceramic bricks generally involves first preparing raw materials according to the formula ratio of the body material, then preparing body powder of the corresponding particle size through the powder making process, finally obtaining ceramic green body through the cloth spreading and pressing process, and finally firing it in the kiln to obtain the ceramic body.

[0003] Currently, in ceramic tile production lines, the powder preparation system for body powder is generally a wet powder preparation system. Specifically, the workflow of the wet powder preparation system is to first add water to the prepared body raw materials and put them into a ball mill for wet ball milling to make a slurry. Then, the slurry is sprayed through a spray tower to granulate into powder with a moisture content of 6-8%.

[0004] Because the ceramic powder that has just been discharged from the spray drying tower has a certain temperature and moisture content, it is very easy for the ceramic powder to agglomerate and clump during the conveying process of transporting the ceramic powder to the material cart in the pressing step. This results in a low sieving rate of the ceramic powder that can pass through the cloth grid and enter the press mold for pressing, which is not conducive to improving the production efficiency of ceramic tiles. Utility Model Content

[0005] The purpose of this invention is to provide a particle dispersion device for ceramic powder, which can effectively disperse the ceramic powder, prevent the ceramic powder from agglomerating and clumping, thereby improving the sieving rate of the ceramic powder on the cloth grid and overcoming the shortcomings of the prior art.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A particle dispersion device for ceramic powder is installed between a spray drying tower and a press trolley; the particle dispersion device for ceramic powder includes a circulating dispersing mechanism, which includes a first screening component, a powder lifting component, and a recovery pipe.

[0008] The first sieving assembly includes a screening box, a first screen, and an elastic support member; the elastic support member is installed at the bottom of the screening box, and the screening box is installed at an angle to the ground via the elastic support member; the first screen is installed at an angle downward along the feeding direction of the ceramic powder inside the screening box, and the interior of the screening box is divided into an upper cavity and a lower cavity by the first screen; an upper discharge port and a lower discharge port are provided at the inclined lower end of the screening box, and the upper discharge port is connected to the upper cavity, and the lower discharge port is connected to the lower cavity; an inlet port is provided at the inclined upper end of the screening box.

[0009] The powder lifting assembly includes a lifting tube and a screw rod; the screw rod is rotatably installed inside the lifting tube, and the rotation of the screw rod is used to convey the ceramic powder located at the bottom of the lifting tube upward;

[0010] The lower part of the side wall of the lifting pipe is provided with a lifting inlet, and the lifting inlet is connected to the upper discharge port; the upper part of the side wall of the lifting pipe is provided with a lifting outlet, the outside of the lifting outlet is connected to the feeding end of the recycling pipe, and the discharging end of the recycling pipe is connected to the inlet.

[0011] Preferably, the tilt angle of the first screen is 15 to 30°.

[0012] Preferably, the first screening assembly further includes a vibrator, which is installed outside the screening box.

[0013] Preferably, the powder lifting assembly includes a gate and a recycling hopper;

[0014] The bottom of the lifting pipe is provided with a recycling port, and the gate is horizontally movably installed on the lifting pipe, and the gate is used to open and close the recycling port;

[0015] The recycling hopper is located below the recycling inlet.

[0016] Preferably, it further includes a diversion and screening mechanism; the diversion and screening mechanism includes a hopper and multiple diversion components, the hopper being disposed below the lower discharge port;

[0017] The diversion assembly includes a diversion pipe, a diversion hopper, a second screen, a conveyor belt, and a third screen arranged sequentially along the feeding direction of the ceramic powder. The diversion pipe is connected between the discharge port of the silo and the feed port of the diversion hopper. The feed ports of the second screen and the conveyor belt are arranged from top to bottom below the discharge port of the diversion hopper, and the third screen is arranged below the discharge port of the conveyor belt.

[0018] Preferably, the shunt components are provided in at least three groups.

[0019] Preferably, it also includes an auxiliary feeding mechanism, which is located between the discharge port and the hopper;

[0020] The auxiliary feeding mechanism includes multiple conical buffer hoppers nested in sequence, and the multiple conical buffer hoppers are arranged in a stepped manner along the feeding direction of the ceramic powder;

[0021] The maximum inner diameter of the plurality of conical buffer hoppers gradually decreases along the feeding direction of the ceramic powder;

[0022] The inner diameter of the conical buffer hopper gradually decreases along the feeding direction of the ceramic powder.

[0023] The technical solution provided by this utility model can include the following beneficial effects:

[0024] 1. The circulating dispersing mechanism of this solution includes a first screening component, a powder lifting component, and a recovery pipe. The upper chamber of the screening box in the first screening component, the powder lifting component, and the recovery pipe are cyclically connected, so that the undersized powder passing through the first screen moves downward along the inclined direction of the screening box and is discharged through the lower outlet. The oversized powder that fails to pass through the first screen moves downward along the inclined direction of the first screen and is discharged through the upper outlet, and then returns to the first screening component through the powder lifting component and the recovery pipe to continue screening.

[0025] 2. The screening box in this solution is installed on the ground through elastic support. Therefore, when the ceramic powder enters the screening box from the feed inlet, the screening box will vibrate under the action of the elastic support, thereby causing the first screen to vibrate, so that the agglomerated ceramic powder can be fully dispersed and screened inside the first screening component.

[0026] 3. This solution also includes a diversion sieving mechanism below the discharge port, which is used to divide the ceramic powder into multiple small ceramic powder piles, and then each pile is sieved a second time through the second screen. After being conveyed to the vicinity of the press material car by the conveyor belt, it is sieved a third time through the third screen before being fed into the press material car. This can effectively take into account both the dispersion effect and dispersion efficiency of the ceramic powder. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a particle dispersion device for ceramic powder according to this utility model.

[0028] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0029] The components include: first screening assembly 11, screening box 111, upper discharge port 1111, lower discharge port 1112, inlet port 1113, first screen 112, elastic support 113, vibrator 114, powder lifting assembly 12, lifting pipe 121, screw rod 122, gate 123, recycling hopper 124, and recycling pipe 13.

[0030] 20. Hopper 21. Diversion pipe 22. Diversion hopper 23. Second screen 24. Conveyor belt 25. Third screen 26.

[0031] Auxiliary feeding mechanism 3, conical buffer hopper 31. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] This technical solution provides a particle dispersion device for ceramic powder, which is installed between a spray drying tower and a press trolley;

[0034] The ceramic powder particle dispersion device includes a circulating dispersing mechanism, which includes a first screening component 11, a powder lifting component 12, and a recovery pipe 13.

[0035] The first sieving assembly 11 includes a screening box 111, a first screen 112, and an elastic support 113. The elastic support 113 is installed at the bottom of the screening box 111, and the screening box 111 is installed obliquely on the ground via the elastic support 113. The first screen 112 is installed obliquely downward along the feeding direction of the ceramic powder inside the screening box 111, and the interior of the screening box 111 is divided into an upper cavity and a lower cavity by the first screen 112. An upper discharge port 1111 and a lower discharge port 1112 are provided at the oblique lower end of the screening box 111, and the upper discharge port 1111 is connected to the upper cavity, and the lower discharge port 1112 is connected to the lower cavity. An inlet 1113 is provided at the oblique upper end of the screening box 111.

[0036] The powder lifting assembly 12 includes a lifting tube 121 and a screw rod 122; the screw rod 122 is rotatably installed inside the lifting tube 121, and the rotation of the screw rod 122 is used to convey the ceramic powder located at the bottom of the lifting tube 121 upward.

[0037] The lower part of the side wall of the lifting pipe 121 is provided with a lifting inlet, and the lifting inlet is connected to the upper discharge port 1111; the upper part of the side wall of the lifting pipe 121 is provided with a lifting outlet, the outside of the lifting outlet is connected to the feeding end of the recycling pipe 13, and the discharging end of the recycling pipe 13 is connected to the feeding port 1113.

[0038] Because the ceramic powder that has just been discharged from the spray drying tower has a certain temperature and moisture content, it is very easy for the ceramic powder to agglomerate and clump during the conveying process of transporting the ceramic powder to the material cart in the pressing step. This results in a low sieving rate of the ceramic powder that can pass through the cloth grid and enter the press mold for pressing, which is not conducive to improving the production efficiency of ceramic tiles.

[0039] Therefore, in order to fully disperse the ceramic powder, prevent its agglomeration and clumping, and thus improve the sieving rate of the ceramic powder on the grating, this technical solution proposes a particle dispersion device for ceramic powder installed between the spray drying tower (not shown in the figure) and the press trolley (not shown in the figure), such as... Figure 1 As shown, it includes a circulating dispersing mechanism. Specifically, the circulating dispersing mechanism includes a first screening component 11, a powder lifting component 12, and a recovery pipe 13. The upper chamber of the screening box 111 in the first screening component 11, the powder lifting component 12, and the recovery pipe 13 are cyclically connected, so that the undersized powder passing through the first screen 112 moves downward along the inclined direction of the screening box 111 and is discharged through the lower discharge port 1112. The powder that fails to pass through the first screen 112 moves downward along the inclined direction of the first screen 112 and is discharged through the upper discharge port 1111. It then passes through the powder lifting component 12 and the recovery pipe 13 in sequence back to the first screening component 11 for further screening. In addition, since the screening box 111 of this solution is installed on the ground through the elastic support 113, when the ceramic powder enters the screening box 111 from the feed port 1113, the screening box 111 will vibrate under the action of the elastic support 113, thereby causing the first screen 112 to vibrate, so that the agglomerated ceramic powder can be fully dispersed and screened inside the first screening component 11.

[0040] It should be noted that the elastic support 113 in this solution can be a spring; the powder lifting assembly 12 can be a vertically arranged screw conveyor, which uses a motor to drive the screw rod to rotate and pushes the material through the rotating screw blades to achieve directional conveying.

[0041] To further explain, the tilt angle of the first screen 112 is 15 to 30°.

[0042] The tilt angle of the first screen 112 is as follows: Figure 1 As shown in the middle ∠m, this allows the ceramic powder to pass through the first screen 112 at a slower speed. On the one hand, this facilitates the full sieving of the ceramic powder, and on the other hand, it provides a certain angle so that the powder on the screen moves to the upper discharge port 1111 under the action of gravity.

[0043] Furthermore, the first screening assembly 11 also includes a vibrator 114, which is installed on the outside of the screening box 111.

[0044] This provides additional vibration so that the agglomerated ceramic powder can be fully dispersed and sieved inside the first sieving assembly 11.

[0045] To further explain, the powder lifting assembly 12 includes a gate 123 and a recycling hopper 124;

[0046] The bottom of the lifting pipe 121 is provided with a recycling port, and the gate 123 is horizontally movably installed on the lifting pipe 121, and the gate 123 is used to open and close the recycling port;

[0047] The recycling hopper 124 is located below the recycling inlet.

[0048] After the ceramic powder recycling and dispersing process is completed, large particles that cannot be dispersed can be discharged through the recycling port and recycled to the recycling hopper 124 for subsequent recycling.

[0049] To elaborate further, it also includes a diversion and screening mechanism;

[0050] The diversion and screening mechanism includes a hopper 20 and multiple diversion components, wherein the hopper 20 is located below the lower discharge port 1112;

[0051] The diversion assembly includes a diversion pipe 21, a diversion hopper 22, a second screen 23, a conveyor belt 24, and a third screen 25 arranged sequentially along the feeding direction of the ceramic powder. The diversion pipe 21 is connected between the discharge port of the hopper 20 and the feed port of the diversion hopper 22. The feed ends of the second screen 23 and the conveyor belt 24 are arranged from top to bottom below the discharge port of the diversion hopper 22, and the third screen 25 is arranged below the discharge end of the conveyor belt 24.

[0052] To further achieve sufficient dispersion of ceramic powder, this solution also includes a diversion sieving mechanism below the discharge port 1112. This mechanism divides the ceramic powder into multiple small piles, which are then sieved a second time through the second screen 23. After being conveyed by the conveyor belt 24 to the vicinity of the press material car (not shown in the figure), the powder is sieved a third time through the third screen 25 before being fed into the press material car. This effectively balances the dispersion effect and dispersion efficiency of the ceramic powder.

[0053] To further clarify, the shunt component is provided in at least three sets.

[0054] Furthermore, it also includes an auxiliary feeding mechanism 3, which is located between the lower discharge port 1112 and the hopper 20;

[0055] The auxiliary feeding mechanism 3 includes a plurality of conical buffer hoppers 31 arranged sequentially, and the plurality of conical buffer hoppers 31 are arranged in a stepped manner along the feeding direction of ceramic powder.

[0056] The maximum inner diameter of the plurality of conical buffer hoppers 31 gradually decreases along the feeding direction of the ceramic powder;

[0057] The inner diameter of the conical buffer hopper 31 gradually decreases along the feeding direction of the ceramic powder.

[0058] To prevent dust from being generated during the process of ceramic powder being fed from the circulating dispersing mechanism to the diversion and screening mechanism, this solution also includes an auxiliary feeding mechanism 3 between the two mechanisms to slow down the feeding speed of ceramic powder.

[0059] Specifically, the auxiliary feeding mechanism 3 of this solution includes multiple conical buffer hoppers 31 arranged in sequence, such as... Figure 2 As shown, the structure of the auxiliary feeding mechanism 3 is designed so that the ceramic powder falls from the lower discharge port 1112 and slides down step by step. Each step slows down the falling speed and disperses the powder, reducing the intense contact and disturbance between the powder and the air.

[0060] It should be noted that the inner diameter of the conical buffer hopper 31 refers to the diameter of the inner cavity of the conical buffer hopper 31, while the maximum inner diameter of the conical buffer hopper 31 refers to the maximum value of the inner cavity diameter of the conical buffer hopper 31, that is, the diameter of the feed inlet of the inner cavity of the conical buffer hopper 31.

[0061] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0062] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0063] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0064] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0065] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0066] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0067] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A particle dispersion device for ceramic powder, characterized in that: Installed between the spray drying tower and the press material car; the particle dispersion device for the ceramic powder includes a circulating dispersing mechanism, which includes a first screening component, a powder lifting component and a recovery pipe; The first sieving assembly includes a screening box, a first screen, and an elastic support member; the elastic support member is installed at the bottom of the screening box, and the screening box is installed at an angle to the ground via the elastic support member; the first screen is installed at an angle downward along the feeding direction of the ceramic powder inside the screening box, and the interior of the screening box is divided into an upper cavity and a lower cavity by the first screen; an upper discharge port and a lower discharge port are provided at the inclined lower end of the screening box, and the upper discharge port is connected to the upper cavity, and the lower discharge port is connected to the lower cavity; an inlet port is provided at the inclined upper end of the screening box. The powder lifting assembly includes a lifting tube and a screw rod; the screw rod is rotatably installed inside the lifting tube, and the rotation of the screw rod is used to convey the ceramic powder located at the bottom of the lifting tube upward; The lower part of the side wall of the lifting pipe is provided with a lifting inlet, and the lifting inlet is connected to the upper discharge port; the upper part of the side wall of the lifting pipe is provided with a lifting outlet, the outside of the lifting outlet is connected to the feeding end of the recycling pipe, and the discharging end of the recycling pipe is connected to the inlet.

2. The particle dispersion device for ceramic powder according to claim 1, characterized in that: The tilt angle of the first screen is 15 to 30°.

3. The particle dispersion device for ceramic powder according to claim 2, characterized in that: The first screening assembly further includes a vibrator, which is mounted outside the screening box.

4. The particle dispersion device for ceramic powder according to claim 3, characterized in that: The powder lifting assembly includes a gate and a recovery hopper; The bottom of the lifting pipe is provided with a recycling port, and the gate is horizontally movably installed on the lifting pipe, and the gate is used to open and close the recycling port; The recycling hopper is located below the recycling inlet.

5. The particle dispersion device for ceramic powder according to claim 1, characterized in that: It also includes a diversion and screening mechanism; the diversion and screening mechanism includes a hopper and multiple diversion components, the hopper being located below the lower discharge port; The diversion assembly includes a diversion pipe, a diversion hopper, a second screen, a conveyor belt, and a third screen arranged sequentially along the feeding direction of the ceramic powder. The diversion pipe is connected between the discharge port of the silo and the feed port of the diversion hopper. The feed ports of the second screen and the conveyor belt are arranged from top to bottom below the discharge port of the diversion hopper, and the third screen is arranged below the discharge port of the conveyor belt.

6. The particle dispersion device for ceramic powder according to claim 5, characterized in that: The shunt components are provided in at least three sets.

7. The particle dispersion device for ceramic powder according to claim 5, characterized in that: It also includes an auxiliary feeding mechanism, which is located between the discharge port and the hopper; The auxiliary feeding mechanism includes multiple conical buffer hoppers nested in sequence, and the multiple conical buffer hoppers are arranged in a stepped manner along the feeding direction of the ceramic powder; The maximum inner diameter of the plurality of conical buffer hoppers gradually decreases along the feeding direction of the ceramic powder; The inner diameter of the conical buffer hopper gradually decreases along the feeding direction of the ceramic powder.

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